Clean-room moulded product and making process

FIELD: chemistry.

SUBSTANCE: invention refers to making a moulded product for handling clean-room materials, intermediate products or end products, such as a container, a tray and a tool. The moulded product is made of resin compound prepared by mixing in melt cycloolefine polymer (A) 100 weight fractions chosen from the group including bicyclo[2.2.1]-2-heptene and its derivatives, tricyclo [4,3,0,12,5]-3-decene and its derivatives, and tetracyclo[4,4,0,12,5,17,10]-3-dodecene and its derivatives of vitrification temperature within 60 to 200°C, and amorphous or low-crystalline elastic copolymer (B(b1)) 1 to 150 weight fractions. Copolymer (B(b1)) is polymerised from at least two monomers chosen from the group including ethylene and a-olefin with 3 to 20 carbon atoms and vitrification temperature 0°C or lower. The compound contains radical polymerisation initiator 0.001 to 1 weight fractions containing peroxide, and polyfunctional compound (D) 0 to 1 weight fractions. The compound (D) has at least two radical-polymerised functional groups chosen from the group including vinyl group, allylic group, acrylic group and methacrylic group in a molecule.

EFFECT: clean-room moulded product is characterised with good chemical stability, heat resistance and dimensional accuracy, it prevents volatile component release in the surrounding space, has good abrasion resistance and prevents particle formation.

19 cl, 1 tbl, 2 dwg, 12 ex

 

The technical field

The present invention relates to a molded article for clean rooms, in particular to a molded article for clean rooms, made of a resin composition obtained by mixing in the melt cyclic olefin polymer, an elastic polymer and initiator of radical polymerization. In addition, the invention relates to a method for the specified moulded products for clean rooms.

The level of technology

Silicon wafers in the process of producing semiconductors, glass substrates in the process of obtaining liquid crystal panels and the metal disks in the process of obtaining hard drives work in clean rooms to prevent their contamination. In these production processes use various molded articles of resin, such as containers, trays, tweezers, to facilitate the manipulation of such substrates. For example, find application containers for simultaneous storage of many substrates and for their transportation from one particular process to the next process in the clean room; containers for holding various treatments; and accessories, such as tweezers, to carry the sheet plates.

These molded articles of the resin used in clean rooms, as required by the tsya, must have high resistance to contamination, so that they do not become a source of pollution themselves. For example, it is important that the evaporation component in the air of the molded products was negligible and the leaching component in water or chemicals was also insignificant. In addition, it is important that the molded product was produced dust when it comes in contact with any other element. As an example, you can specify the tape for semiconductor wafers. The contact of the cartridge with solid element is inevitable, for example, when the silicon wafer is inserted into the cartridge, or remove from it or when the cassette is transferred by using a robotic device. Thus, the molded product from the resin with good resistance to abrasion, is able to inhibit particle formation even in this case, is highly desirable. Often molded product from the resin impart antistatic properties to prevent electrical breakdown of electronic devices and to prevent adhesion of particles. In modern miniaturization of devices, the size of the particles, the adhesion of which must be controlled, it is becoming less and, therefore, the requirement to prevent the formation of particles becomes harder.

Cyclic olefin polymers have good chemical stand the spine, heat resistance and resistance to atmospheric influences, and molded articles obtained from them, have a good accuracy of the linear dimensions and good rigidity, and therefore, such polymers find wide application for various molded products. For example, in the patent reference 1 describes a resin composition obtained by combining a specific carbon fibers with a cyclic polyolefin. Indicates that the resin composition is static and it vyparivat small amount of impurities, and therefore, it can be used as a container material for electronic parts, such as cartridges for integrated circuits (IC) and cassette for semiconductor wafers. However, impact strength and abrasion resistance of the resin composition is insufficient. On the other hand, in the patent reference 2 describes a resin composition obtained by combining rubber and conductive carbon fibers with a cyclic olefin polymer, it is specified that the composition may be used as a carrying device or packaging material for electronic devices, IP, etc. Impact strength of molded articles of the resin composition is improved because the composition contains a rubber, but the abrasion resistance is still insufficient. The link is boritsya, because carbon fiber is added instead of carbon black, molded product does not stain black any other element that is in contact with him. However, nothing is specified relatively volatile component and a mobile component of the resin composition.

In patent reference 3 describes the composition is cross-linked shock-resistant cyclic olefin resin, which contains the reaction product statistical cyclic olefin copolymer comprising ethylene component and the component cyclic olefin and having a softening temperature not less than 70°C, elastic copolymer having a glass transition temperature not higher than 0°C, and organic peroxide. In patent reference 3 indicates that the resin composition has good impact strength, especially good low-temperature impact strength, but says nothing about its resistance to abrasion and resistance to contamination.

Patent reference 1: JP-A 7-126434 (claims 0016).

Patent reference 2: JP-A 7-109396 (claims 0001).

Patent reference 3: JP-A 2-167318 (Formula of the invention, said invention).

Description of the invention

Problems that the invention is:

The present invention is made to solve the above problems, and an object of the invention is the creation of ormoving products for clean rooms, which has good chemical resistance, heat resistance and precision linear dimensions, which delays the release of the volatile component in the surrounding area, which has good abrasion resistance and which prevents the formation of particles, as well as the development method of producing such products.

Means to solve these problems:

The above problems are solved by developing moulded products for clean rooms, made of a resin composition obtained by mixing in the melt:

100 mass. parts of the cyclic olefin polymer (A)having a glass transition temperature from 60 to 200°C,

from 1 to 150 mass. parts of the elastic copolymer (B)obtained by polymerization of at least two monomers selected from the group consisting of olefins, dienes and aromatic vinyl hydrocarbons, and having a glass transition temperature of 0°C or below,

from 0.001 to 1 mass. part of the radical polymerization initiator (C), and

from 0 to 1 mass. part of the polyfunctional compound (D)containing in the molecule at least two capable of radical polymerization functional group.

Preferably, the cyclic olefin polymer (A) is a polymer obtained by polymerization of a cyclic olefin of the following formula [1] or [11]. Especially preferred is equipment cyclic olefin polymer (A) is a statistical copolymer of ethylene and cyclic olefin of the following formula [1] or [11]. Also preferably MER (the flow rate of the melt, measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238) of the cyclic olefin polymer (A) has a value from 0.1 to 500 g/10 minutes

[Compound 1]

In the formula [1] n denotes 0 or 1; m is 0 or a positive integer; q is 0 or 1; R1-R18and Raand Rbeach independently represents a hydrogen atom, halogen atom or hydrocarbon group; R15-R18can be connected to each other with the formation of the monocyclic or polycyclic structure, and monocyclic or polycyclic structure may have a double bond; and the substituents R15and R16or R17and R18can form alkylidene group.

[Compound 2]

In the formula [II] p and q each is 0 or an integer of 1 or more; each type means 0, 1 or 2; R1-R19each independently represents a hydrogen atom, halogen atom, aliphatic hydrocarbon group, alicyclic hydrocarbon group, aromatic hydrocarbon group or alkoxygroup; the carbon atom that is attached to R9(or R10), and the carbon atom that is attached to R13or R11can be connected to each other neposredstvennoi through alkylenes group, containing from 1 to 3 carbon atoms; and when n=m=0, R15and R12or R15and R19can be connected to each other with the formation of the monocyclic or polycyclic aromatic ring.

Preferably the elastic copolymer (B) is at least one copolymer selected from the group consisting of:

amorphous or nizkochastotnogo elastic copolymer (b1)obtained by polymerization of at least two monomers selected from the group consisting of ethylene and α-olefin containing from 3 to 20 carbon atoms,

elastic copolymer (b2)obtained by the polymerization of ethylene, α-olefin containing from 3 to 20 carbon atoms, and cyclic olefin,

elastic copolymer (b3)obtained by polymerization of non-conjugate diene and at least two monomers selected from ethylene and α-olefin containing from 3 to 20 carbon atoms, and

elastic copolymer (b4) statistical or block copolymer or its hydrogenation product of an aromatic vinylacetate and a conjugated diene. Of those, more preferred is an amorphous or nizkoglikemichesky elastic copolymer (b1)obtained by polymerization of at least two monomers selected from the group consisting of ethylene and α-olefin containing from 3 to 20 carbon atoms.

Preference is sustained fashion resin composition, used in the present invention, further comprises carbon fibers (E) and their content is from 1 to 100 mass. parts relative to 100 mass. parts of all of the cyclic olefin polymer (a) and elastic copolymer (B). Also preferably MER (measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238) of the resin composition has a value from 0.01 to 100 g/10 min Also preferably, the total amount of gas released when heated at 150°C for 30 minutes is at most 20 μg/g in terms of hexadecan. Also preferably molded article has a surface resistivity ranging from 102up to 1012Ohms/square.

The preferred implementation of the molded products for clean room of the present invention is a container for plate elements selected from a substrate for a semiconductor substrate for displays and substrates for media records. Preferably, the plate element is in direct contact with the container. Also preferably, the container must include a container that is in direct contact with the plate element. A device for manipulation of the material, intermediate product or finished product is also the preferred options, the ant implementation of the present invention.

The above problem can also be solved by developing a method of producing molded products for cleanrooms, which comprises mixing in the melt:

100 mass. parts of the cyclic olefin polymer (A)having a glass transition temperature from 60 to 200°C,

from 1 to 150 mass. parts of the elastic copolymer (B)obtained by polymerization of at least two monomers selected from the group consisting of olefins, dienes and aromatic vinyl hydrocarbons, and having a glass transition temperature of 0°C or below, and

from 0.001 to 1 mass. part of the radical polymerization initiator (C), and

and forming from the melt obtained resin composition.

Preferably a polyfunctional compound (D)containing in the molecule at least two capable of radical polymerization functional group, add together with the radical polymerization initiator (C). Also preferably, the cyclic olefin polymer (a) and elastic copolymer (B) are pre-mixed in the melt, then add to them the radical polymerization initiator (C) and mixed in the melt with obtaining a resin composition. More preferably the part of the cyclic olefin polymer (a) and elastic copolymer (B) are pre-mixed in the melt, then add to them the radical polymerization initiator (C and mixed in the melt, and then add the remaining cyclic olefin polymer (A) and mixed in the melt with obtaining a resin composition. It is also preferred to add from 1 to 100 mass. parts, based on 100 mass. parts total cyclic olefin polymer (a) and elastic copolymer (B), carbon fibers (E), and mixed in the melt with obtaining a resin composition.

Preferably in the above method of obtaining the temperature of the mixture in the melt is from 150 to 350°C. for mixing in the melt to obtain the resin composition is preferably used extruder, having an air valve. Also preferably, the time during which the melt after the addition of the radical polymerization initiator (C) remains in the extruder is from 30 to 1800 seconds. Also preferably, the resin composition is subjected to injection molding at a maximum speed of input from 100 to 240 ml/sec.

The technical result of the invention:

Molded products for clean room of the present invention has good chemical resistance, heat resistance and precision linear size, not too large release of volatile component in the surrounding area and has good abrasion resistance, without forming a large number of particles. Thus, the use of molded products is useful when ucah application, which require a high level of resistance to pollution, for example, a cassette of semiconductor wafers.

Brief description of drawings:

Figure 1 is a front view of the cassette for semiconductor wafers manufactured in examples of the present invention.

Figure 2 represents a rear view of a cassette for semiconductor wafers manufactured in examples of the present invention.

Figure 3 is a top view of a cassette for semiconductor wafers manufactured in examples of the present invention.

Figure 4 is a view showing part of the tape for semiconductor wafers to measure sizes.

The best way of carrying out the invention:

The resin composition for use in the present invention is obtained by mixing in the melt 100 mass. parts of the cyclic olefin polymer (A)having a glass transition temperature from 60 to 200°C, from 1 to 150 mass parts of the elastic copolymer (B)obtained by polymerization of at least two monomers selected from the group consisting of olefins, dienes and aromatic vinyl hydrocarbons, and having a glass transition temperature of 0°C or below, from 0.001 to 1 mass. part of the radical polymerization initiator (C) and from 0 to 1 mass. part of the polyfunctional compound (D)containing in the molecule at least two capable of radical p is liberizatsii functional groups. In this case, the maintenance of the polyfunctional compound (D) is optional, and the resin composition may consist of only three components, cyclic olefin polymer (A), elastic copolymer (b) and the radical polymerization initiator (C).

Cyclic olefin polymer (A) has good heat resistance, resistance to thermal aging, chemical resistance, resistance to weathering, resistance to solvents, dielectric characteristics and stiffness; and owing to such characteristics, it is used in many application forms. How to add elastic polymer (B) to the cyclic olefin polymer (A) to improve its impact strength is known. However, the fact that the abrasion resistance of the cyclic olefin polymer (A) is unsatisfactory and cannot be significantly improved even by adding thereto the elastic copolymer (B)has not been studied sufficiently. The level of required properties of the molded products is now becoming higher and resins for them, how often you should have a high level of resistance to abrasion. However, due to poor abrasion resistance cyclic olefin polymer (A) or its mixture with one elastic polymer (B) some cases is unsuitable for the application.

It is already known that a resin composition obtained by mixing in the melt cyclic olefin polymer (a) and elastic copolymer (B) in the presence of a radical polymerization initiator (C) with the introduction of the polymer cross stitched patterns, may have improved low-temperature impact strength. The resin composition obtained by adding the elastic copolymer (b) and the radical polymerization initiator (C) to the cyclic olefin polymer (a) and mixing in the melt for the occurrence of a chemical reaction. Accordingly, it is expected that the composition will contain a large amount of decomposition product formed by radical reactions, however, at present, when determining the amount of gas released from the resin composition, it has been unexpectedly found that the amount of released gas is at the level required for molded products for clean rooms. In addition, in the present resin composition is tested for its resistance to abrasion and it became obvious that the composition has good resistance to abrasion. Thus, it was found that the resin composition is suitable for molded products for cleanrooms, which must not form particles. As mentioned above, it became clear, first, that the resin composition today the properties, acceptable to obtain molded products for clean rooms.

Cyclic olefin polymer (A) for use in the present invention has a glass transition temperature from 60 to 200°C. To meet the requirement of heat resistance of molded products for clean rooms the glass transition temperature of the polymer should be 60°C or higher, preferably 80°C. or higher, more preferably 100°C. or higher. However, if the molding temperature is too high, the polymer may decompose and, therefore, the glass transition temperature of the polymer should be 200°C. or lower. The glass transition temperature, as is understood in this case, represents the glass transition onset temperature, measured by differential scanning colorimeter at heating rate 10°C/min

Preferably MER (the flow rate of the melt, measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238) of the cyclic olefin polymer (a) is from 0.1 to 500 g/10 min. If MER is less than 0.1 g/10 min, the melt viscosity of the polymer is too high and the formability of the resulting resin composition may deteriorate. More preferably MER is at least 0.5 g/10 min, even more preferably at least 1 g/10 min. on the other hand, if MER is more than 500 g/10 min, mechanics is the definition of the strength of the obtained resin composition may be reduced. More preferably, MER is at most 200 g/10 min, even more preferably at most 100 g/10 minutes

Cyclic olefin polymer (a) may be any polymer obtained by polymerization of olefinic monomer having an aliphatic cyclic skeleton, to obtain the olefin polymer having an aliphatic cyclic skeleton, and the type is not specifically defined. However, preferably, the cyclic olefin polymer (A) is a polymer obtained by polymerization of a cyclic olefin of the following formula [I] or [II]:

[3]

In the formula [I] n denotes 0 or 1; m is 0 or a positive integer; q is 0 or 1; R1-R18and Raand Rbeach independently represents a hydrogen atom, halogen atom or hydrocarbon group; R15-R18can be connected to each other with the formation of the monocyclic or polycyclic structure, and monocyclic or polycyclic structure may contain a double bond; and R15and R16or R17and R18can form alkylidene group.

Connection 4]

In the formula [II] p and q each is 0 or an integer of 1 or more; each type means 0, 1 or 2; R1-R19every illegal the performance represents a hydrogen atom, halogen atom, aliphatic hydrocarbon group, alicyclic hydrocarbon group, aromatic hydrocarbon group or alkoxygroup; the carbon atom that is attached to R9(or R10), and the carbon atom that is attached to R13or R11can be connected to each other directly or through alkylenes group containing from 1 to 3 carbon atoms; and when n=m=0, R15and R12or R15and R19can be connected to each other with the formation of the monocyclic or polycyclic aromatic ring.

Preferred examples of the polymer obtained by polymerization of a cyclic olefin of formula [I] or [II]are the polymers (A1), (A2), (A3) and (A4)described below.

(A1): a Statistical copolymer of ethylene and cyclic olefin of formula [I] or [II] (a statistical copolymer of ethylene/cyclic olefin).

(A2): a Polymer with an open ring or a copolymer with an open ring of a cyclic olefin of formula [I] or [II].

(A3): the Product of hydrogenation of the polymer (A2).

(A4): a Graft-modified product of the polymer (A1), (A2) or (A3).

Cyclic olefin of formula [I] or [II] to obtain a cyclic olefin polymer (A) for use in the present invention are described.

Chemical formula of cyclic olefin [I] has the following form:

[Compound 5]

In the formula [I] n denotes 0 or 1; m is 0 or a positive integer; q is 0 or 1. When q is 1, R3and R13each independently represents an atom or a hydrocarbon group described above; and when q is 0, loose ties are connected to each other to form a 5-membered ring.

The substituents R1-R18and Raand Rbeach independently represents a hydrogen atom, halogen atom or hydrocarbon group. The halogen atom is a fluorine atom, chlorine atom, bromine atom and iodine atom.

Hydrocarbon group independently and, as a rule, represents an alkyl group containing from 1 to 20 carbon atoms, cycloalkyl group containing from 3 to 15 carbon atoms, or an aromatic hydrocarbon group. More specifically, the alkyl group is a methyl group, ethyl group, through the group, isopropyl group, amylou group, hexoloy group, octillo group decile group, dodecyloxy group and octadecyl group; cycloalkyl group is a tsiklogeksilnogo group; and aromatic hydrocarbon group is a phenyl group and naftalina group.

The hydrocarbon group may be substituted by a halogen atom. In the formula [I] the substituents R15-R18can be associated with each other (or together) with the formation of the monocyclic or polycyclic structure, and monocyclic or polycyclic structure formed thereby, may have a double bond. Specific examples of the monocyclic or polycyclic structure, which is formed in this case, below.

[Chemical structure of 6]

In the above examples, the carbon atom number of 1 or 2 is the carbon atom in the formula [I], which is associated with the substituents R15(R16or R17(R18). The substituents R15and R16or R17and R18can form alkylidene group. Alkylidene group is usually alkylidene group containing from 2 to 20 carbon atoms, and specific examples are utilizinga group, propylidene group and isopropylidene group.

Chemical formula of cyclic olefin [II] below.

[Compound 7]

In the formula [II] p and q each is 0 or a positive integer; and m and n each is 0, 1 or 2. The substituents R1-R19each independently represents a hydrogen atom, halogen atom, hydrocarbon group, or alkoxygroup.

The halogen atom has the same meanings as in the formula [I]. Each hydrocarbon group independently mean alkyl group containing from 1 to 20 carbon atoms, halogenate is inuu group, containing from 1 to 20 carbon atoms, cycloalkyl group or aromatic hydrocarbon group containing from 3 to 15 carbon atoms. More specifically, the alkyl group is a methyl group, ethyl group, through the group, isopropyl group, amylou group, hexoloy group, octillo group decile group, dodecyloxy group and octadecyl group; cycloalkyl group is a tsiklogeksilnogo group; and aromatic hydrocarbon group is an aryl group and aracelio group, specifically, phenyl group, taillow group, naftalina group, benzyl group and phenylethylene group.

Alkoxygroup means a methoxy group, ethoxypropan and propoxylate. These hydrocarbon groups and alkoxygroup may be replaced by fluorine atom, chlorine atom, bromine atom or iodine atom.

The carbon atom that is attached to R9and R10and the carbon atom that is attached to R13or a carbon atom that is attached to R11can be connected to each other directly or through alkylenes group containing from 1 to 3 carbon atoms. More specifically, when the above carbon atoms are connected to each other through alkylenes group, groups represented by R9and R13or group, pre is provided R 10and R11together form a methylene group (-CH2-), ethylene group (-CH2-CH2-) or propylene group (-CH2-CH2-CH2-).

When n=m=0, the substituents R15and R12or R15and R19can be connected to each other with the formation of the monocyclic or polycyclic aromatic ring. Monocyclic or polycyclic aromatic ring in this case means, for example, groups below, in which the substituents R15and R12form an aromatic ring, when n=m=0.

[Compound 8]

q has the same significance as in the formula [II].

More specifically, examples of the cyclic olefins of the formula [I] or [II] below. The first can be called bicyclo[2.2.1]-2-hepten (= norbornene) (in the above General formula, each number from 1 to 7 indicates the position of the carbon atom) and derivatives of this compound, a substituted hydrocarbon group.

[Compound 9]

Examples of the hydrocarbon group include 5-methyl, 5,6-dimethyl, 1-methyl, 5-ethyl, 5-n-butyl, 5-isobutyl, 7-methyl, 5-phenyl, 5-methyl-5-phenyl, 5-benzyl, 5-tolyl, 5-(ethylphenyl), 5-(isopropylphenyl), 5-(biphenyl), 5-(β-naphthyl), 5-(α-naphthyl), 5-(anthracene), 5,6-diphenyl.

As examples of other derivatives can also be called to add the CT cyclopentadiene-acenaphthylene and derivatives of bicyclo[2.2.1]-2-Heptene, such as 1,4-methane-1,4,4A,9a-tetrahydrofluorene, 1,4-methane-1,4,4A,5,10,10A-hexahydropyrazino.

In addition, it should also be called derivative tricyclo[4.3.0.12,5]-3-mission, such as tricyclo [4.3.0.12,5]-3-mission 2-methyltricyclo[4.3.0.12,5]-3-mission 5-methyltricyclo[4.3.0.12,5]-3-mission;

derivatives tricyclo[4.4.0.12,5]-3-undecene, such as tricyclo[4.4.0.12,5]-3-undecene, 10-methyltricyclo[4.4.0.12,5]-3-undecen.

It should also be called tetracyclo[4.4.0.12,5.17,10]-3-dodecen presented to the following structural formula, and its derivatives, substituted hydrocarbon group.

[Compound 10]

Examples of the hydrocarbon group include 8-methyl, 8-ethyl, 8-propyl, 8-butyl, 8-isobutyl, 8-hexyl, 8-cyclohexyl, 8-stearyl, 5,10-dimethyl, 2,10-dimethyl, 8,9-dimethyl, 8-ethyl-9-methyl -, 11,12-dimethyl, 2,7,9-trimethyl, 2,7-dimethyl-9-ethyl, 9-isobutyl-2,7-dimethyl, 9,11,12-trimethyl, 9-ethyl-11,12-dimethyl, 9-isobutyl-11,12-dimethyl, 5,8,9,10-tetramethyl, 8-ethylidene, 8-ethylidene-9-methyl, 8-ethylidene-9-ethyl, 8-ethylidene-9-isopropyl, 8-ethylidene-9-butyl, 8-n-propylidene, 8-n-propylidene-9-methyl, 8-n-propylidene-9-ethyl, 8-n-propylidene-9-isopropyl, 8-n-propylidene-9-butyl, 8-isopropylidene, 8-isopropylidene-9-methyl, 8-isopropylidene-9-ethyl, 8-isopropylidene-9-isopropyl, 8-isopropylidene-9-butyl, 8-chloro, 8-bromo, 8-fluoro, 8,9-dichloro, 8-phenyl, 8-methyl-8-FeNi is, 8-benzyl, 8-tolyl, 8-(ethylphenyl), 8-(isopropylphenyl), 8,9-diphenyl, 8-(biphenyl), 8-(β-naphthyl), 8-(α-naphthyl), 8-(anthracene), 5,6-diphenyl.

Next, you must specify the derivative tetracyclo [4.4.0.12,5.17,10]-3-dodecene, such as adduct (adduct of cyclopentadiene-acenaphthylene) and cyclopentadiene;

pentacyclo[6.5.1.13,6.02,7.09,13]-4-pentadecane and its derivatives,

pentacyclo[7.4.0.12,5.19,12.08,13]-3-pentadecane and its derivatives,

pentacyclo[8.4.0.12,5.19,12.08,13]-3-hexadecene and its derivatives,

pentacyclo[6.6.1.13,6.02,7.09,14]-4-hexadecene and its derivatives,

Exotica[6.6.1.13,6.110.13.02,7.09,14]-4-heptadecene and its derivatives,

gatecycle[8.7.0.12,9.14,7.111,17.03,8.012,16]-5-eicosan and its derivatives,

gatecycle[8.7.0.13,6.110,17.112,15.02,7.011,16]-4-eicosan and its derivatives,

gatecycle[8.8.0.12,9.14,7.111,18.03,8.012,17]-5-heneicosan and its derivatives,

octillo[8.8.0.12,9.14,7.111,18.113,16.03,8.012,17]-5-dokusen and its derivatives,

monociclo[areas 10.9.1.14,7.113,20.115,18.02,10.03,8.012,21.014,19]-5-Pentecost and its derivatives.

Examples of cyclic olefins of the formula [I] or [II], which are used in of the Britanie, the above, and more specific structure of such compounds which can be used as cyclic olefin in the present invention, presented in the publication JP-A 7-145213, paragraphs [0032] to [0054].

Cyclic olefin of formula [I] or [II]above, can be obtained by reaction of the Diels-alder reaction of cyclopentadiene and olefin, having a corresponding structure.

One or more types of these cyclic olefins may be used in this case or separately, or together. Preferably when using a cyclic olefin of the above formula [I] or [II] can be obtained cyclic olefin polymer (A) for use in this invention, for example, in accordance with the methods described in the publications of JP-A 60-168708, JP-A 61-120816, JP-A 61-115912, JP-A 61-115916, JP-A 61-271308, JP-A 61-272216, JP-A 62-252406, JP-A 62-252407, when appropriate conditions obtain.

The following are examples of cycloolefins formula (I) or formula (II).

Statistical copolymer (A) of cycloolefin consists of repeating units derived from ethylene and the above cycloolefin.

However, the statistical copolymer (A) of cycloolefin may contain repeating units derived from other monomers, copolymerizing with ethylene (a) and cycloolefin (b), provided that the properties of the obtained copolymer is not particularly limited.

(A1). Statistical copolymer of ethylene/cyclic olefin:

In the statistical copolymer of ethylene/cyclic olefin (A1) link derived from ethylene, and link derived from a cyclic olefin, as shown above, are connected to each other in a random configuration, therefore, have an essentially linear structure. Essentially linear structure of the copolymer, in fact, not having a gel-like cross-linked structure is confirmed by the fact that by dissolving the polymer in an organic solvent, the resulting solution does not contain undissolved components. For example, when measuring the characteristic viscosity [η] of the copolymer is completely dissolved in decaline at 135°C, and this fact confirms the above.

In the statistical copolymer of ethylene/cyclic olefin (A1) for use in the present invention, at least part of the cyclic olefin of formula [I] or [II] may be to repeat rameeza link the following formula [III] or [IV]:

[Compound 11]

In the formula [III] n, m, q, R1-R18, Raand Rbhave the same meanings as in the formula [I].

[Compound 12]

In the formula [IV] n, m, p, q and R1-R19have the same meanings as in the formula [II]. Without departing from the substance of the present invention, a statistical copolymer of ethylene/cyclic olefin (A1) for use in the present invention may not necessarily have a link obtained from any other, capable of copolymerization of the monomer.

Other monomers can be an olefin, with the exception of ethylene and cyclic olefins listed above, including α-olefins containing from 3 to 20 carbon atoms, such as propylene, 1-butene, 1-penten, 1-hexene, 3-methyl-1-butene, 3-methyl-1-penten, 3-ethyl-1-penten, 4-methyl-1-penten, 4-methyl-1-hexene, 4,4-dimethyl-1-hexene, 4,4-dimethyl-1-penten, 4-ethyl-1-hexene, 3-ethyl-1-hexene, 1-octene, 1-mission 1-dodecene, 1-tetradecene, 1-hexadecene, 1 octadecene and 1 achozen; cycloolefin, such as cyclobutene, cyclopentene, cyclohexene, 3,4-dimethylcyclopentene, 3-methylcyclohexene, 2-(2-methylbutyl)-1-cyclohexen, cyclooctene and 3A,5,6,7a-tetrahydro-4,7-methane-1H-inden; and unpaired diene, such as 1,4-hexadiene, 4-methyl-1,4-hexadiene, 5-methyl-1,4-hexadiene, 1,7-octadiene, Dicyclopentadiene and 5-vinyl-2-norbornene.

Statistical copolymer of ethylene/cyclic olefin (A1) for use in this invention can be obtained in accordance with methods of preparation, are described in the above patent publications, using ethylene and cyclic olefin of formula [I] or [II]. Of these, the preferred method is a method of obtaining a statistical copolymer of ethylene/cyclic olefin (A1) through copolymerization in a hydrocarbon solvent using a catalyst derived from vanadium compounds and alyuminiiorganicheskikh compounds soluble in the hydrocarbon solvent.

To conduct copolymerization you can also use solid metallocene catalyst metal 4 groups. Solid metallocene catalyst metal 4 groups represents a catalyst containing a transition metal compound that includes a ligand having cyclopentadienyl structure, alyuminiiorganicheskikh connection and optional alyuminiiorganicheskikh connection. The transition metal belonging to group 4 of the periodic table, predstavljaet a zirconium titanium or hafnium, and the transition metal contains at least one ligand having cyclopentadienyls structure. Examples of the ligand having cyclopentadienyls structure are cyclopentadienyls group, angenlina group, tetrahydroindole group and fluoroaniline group, optionally substituted alkyl group. Such groups can be associated with the connection over any other group, such as Allenova group. Ligands other than the ligand having cyclopentadienyls structure, are an alkyl group, cycloalkyl group, aryl group, kalkilya group, etc.

Alyuminiiorganicheskikh group and alyuminiiorganicheskikh connection can be a group and a compound that is usually used to obtain the olefinic resins. Solid metallocene catalyst metal 4 groups described, for example, in the publications of JP-A 61-221206, JP-A 64-106, JP-A 2-173112.

(A2). The polymer with an open ring or a copolymer with an open ring cyclic olefins:

In the polymer with an open ring or copolymer with an open ring of a cyclic olefin, at least part of the cyclic olefin of formula [I] or [II] may form a repeating link the following formula [V] or [VI]:

[Compound 13]

In the formula [V] n, m, q, R1-R18, Raand Rbshall have the same meanings, as in the formula [I].

[Compound 14]

In the formula [VI] n, m, p, q and R1-R19have the same meanings as in the formula [II]. The polymer with an open ring or a copolymer with an open ring cyclic olefins can be obtained in accordance with methods of preparation, are described in the above patent publications. For example, cyclic olefin of formula [I] may be subjected to polymerization or copolymerization in the presence of a catalyst of polymerization with ring opening.

The catalyst for polymerization with ring opening to apply in this case can be a catalyst containing a halide of a metal selected from ruthenium, rhodium, palladium, osmium, indium or platinum nitrate or acetylacetonate connection, and a reducing agent; or a catalyst containing a halide of a metal selected from titanium, palladium, zirconium or molybdenum, or acetylacetonate connection, and alyuminiiorganicheskikh connection.

(A3). The product of hydrogenation of the polymer with an open ring or copolymer with an open ring:

The hydrogenation product (A3) polymer with an open ring or copolymer with an open ring, which is used in the present invention, can be obtained by hydrogenation of the polymer with an open ring or copolymer with an open ring (A2), p is obtained, as described above, in the presence of conventional well-known catalytic hydrogenation.

The product of hydrogenation of the polymer with an open ring or copolymer with an open ring, at least part of the cyclic olefin of formula [I] or [II] may contain duplicate link the following formula [VII] or [VIII]:

[Compound 15]

In the formula [VII] n, m, q, R1-R18, Raand Rbhave the same meanings as in the formula [I].

[Compound 16]

In the formula [VIII] n, m, p, q and R1-R19have the same meanings as in the formula [II].

The hydrogenation product (A3) polymer with an open ring or copolymer obtained stepwise polymerization, which are intended for use in the present invention, preferred are hydrogenated polymer of the polymer with an open ring or copolymer with an open ring of the above norbornene and its derivatives, substituted hydrocarbon group.

(A4). The product graft-modification:

The product graft-modification (A4) is a product of the graft-modified (grafted copolymerization) statistical copolymer of ethylene/cyclic olefin (A1), polymer with open ring or copolymer with an open ring (A2) or a product of hydrogenation of the polymer with an open ring is or copolymer with an open ring (A3), above.

As the modifying agent is usually used unsaturated carboxylic acid. Specifically, this acid is an unsaturated carboxylic acid such as (meth)acrylic acid, maleic acid, fumaric acid, tetrahydrophtalic acid, taconova acid, Tarakanova acid, cretonne easy acid, Sekretareva acid, endo-CIS-bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid (nadowa acid, nadic); and derivatives of unsaturated carboxylic acids, such as anhydrides of unsaturated carboxylic acids, halides, unsaturated carboxylic acids, amides of unsaturated carboxylic acids, imides of unsaturated carboxylic acids, esters of unsaturated carboxylic acids.

More specifically, derivatives of unsaturated carboxylic acids are maleic anhydride, citraconic anhydride, acid chloride maleic acid, maleic acid imide, monometallic, dimethylmaleic, glycidylether etc.

Of these modifying agents preferred for use in this case are α,β-unsaturated dicarboxylic acids and anhydrides of α,β-unsaturated dicarboxylic acids such as maleic acid, nadowa acid and their anhydrides. Two or more such modifying agent can be used in this case together.

The degree of modification of the product graft-modification (A4) cyclic olefin polymer, which is intended for use in the present invention, usually, is preferably at most 10 mol.%. The product graft-modification (A4) cyclic olefin polymer can be obtained by graft-polymerization in the presence of the modifying agent, or initially by obtaining product modification, with a high degree of modification, and then the mixture of product modification unmodified cyclic olefin polymer so as to obtain the desired degree of modification.

For producing the product of the graft-modification (A4) of the cyclic olefin polymer of the cyclic olefin polymer and the modifying agent, any conventional known method of modification of the polymer can be used in this case. For example, for producing the product of the graft-modification (A4) you can use the method of adding the modifying agent to the melt of a cyclic olefin polymer; or a method of adding a modifying agent to a solution of the cyclic olefin polymer in the solvent for the reaction of the graft copolymerization of the polymer.

The reaction of the graft copolymerization can usually be carried out at a temperature of from 60 to 350°C. furthermore, the reaction of the grafted copoly is erinacei can be carried out in the presence of a radical polymerization initiator, such as organic peroxides and azo compounds.

Product modification, with the degree of modification, as described above, can be directly obtained by the reaction of the graft copolymerization of a cyclic olefin polymer and the modifying agent. Also specified product can be obtained by first obtaining product modification, with a high degree of modification, and then the mixture of product modification unmodified cyclic olefin polymer so as to obtain the desired degree of modification.

In the present invention any of the above products (A1), (a2), (a3) and (A4) can be used as cyclic olefin polymer (A) or separately or in combination.

Of them, preferred is a statistical copolymer of ethylene/cyclic olefin (A1), that is, a statistical copolymer of ethylene and cyclic olefin of formula [I] or [II]. Statistical copolymer of ethylene/cyclic olefin (A1) is preferable, as it gives a resin composition having good resistance to abrasion and releasing a small quantity of volatile substances.

Preferred examples of the cyclic olefin of formula [I] or [II], which are used as source material for a statistical copolymer of ethylene/cyclic olefin (A1), the two who are above tetracyclo[4.4.0.1 2,5.17,10]-3-dodecene and its derivatives, substituted hydrocarbon group, due to their heat resistance and availability, and tetracyclo[4.4.0.12,5.17,10]-3-dodecene is a particularly preferred example of the connection.

Preferably the ethylene content in the statistical copolymer of ethylene/cyclic olefin (A1) is from 40 to 85 mol.% from the point of view of its heat resistance and rigidity. More preferably the ethylene content is at least 50 mol.%. Also more preferably, the ethylene content is at most 75 mol.%. The content of the cyclic olefin is preferably from 15 to 60 mol.%. More preferably the content of the cyclic olefin is at most 25 mol.%. Also more preferably, the content of the cyclic olefin is at most 50 mol.%.

The following describes the elastic copolymer (B). Elastic copolymer (B) for use in the present invention has a glass transition temperature of not more than 0°C. For a sufficient improvement of the abrasion resistance of the molded products for clean rooms, obtained in this case, the glass transition temperature should be 0°C or lower, preferably -10°C. or lower, more preferably -20°C. or below. In General, the glass transition temperature should be not lower than -100°C. the Degree of crystallinity is of polymera, measured by using x-ray diffraction is preferably from 0 to 30%, more preferably from 0 to 25%.

Preferably MER (the flow rate of the melt, measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238) of an elastic copolymer (b) is from 0.01 to 200 g/10 min. If MER is less than 0.01 g/10 min, the melt viscosity of the copolymer may be too high, and the formability of the melt of the resin composition may deteriorate. More preferably MER is at least 0.05 g/10 min, even more preferably at least 0.1 g/10 min. on the other hand, if MER exceeds 200 g/10 min, the mechanical strength of the resulting molded product may fall. More preferably MER is at most 150 g/10 min, even more preferably at most 100 g/10 min is Also preferable characteristic viscosity [η], measured in decaline at 135°C, the copolymer for use in the present invention preferably ranges from 0.01 to 10 DL/g, more preferably from 0.08 to 7 DL/g

Elastic copolymer (B) obtained by polymerization of at least two monomers selected from the group consisting of olefins, dienes and aromatic vinyl hydrocarbon. It is important to use an elastic copolymer (b)consisting of the above monomers, due to its crodt is and cyclic olefin polymer (A). Without reducing the effect of the present invention, the copolymer may be copolymerization with a small amount of another monomer other than the above monomers.

Preferred examples of the elastic copolymer (B) are the following copolymers (b1), (b2), (b3) and (b4):

(b1) an amorphous or nizkoglikemichesky elastic copolymer obtained by polymerization of at least two monomers selected from the group consisting of ethylene and α-olefin containing from 3 to 20 carbon atoms,

(b2) elastic copolymer obtained by the polymerization of ethylene, α-olefin containing from 3 to 20 carbon atoms, and cyclic olefin,

(b3) elastic copolymer obtained by polymerization of non-conjugate diene and at least two monomers selected from ethylene and α-olefin containing from 3 to 20 carbon atoms,

(b4) elastic statistical copolymer or a block copolymer or its hydrogenation product of an aromatic vinyl hydrocarbon and a conjugated diene.

Elastic copolymer (b1) is an amorphous or nizkoglikemichesky elastic copolymer obtained by polymerization of at least two monomers selected from the group consisting of ethylene and α-olefin containing from 3 to 20 carbon atoms. From the above copolymers (b1)-(b4) is particularly preferable to use elastic the initial copolymer (b1) due to its affinity to the cyclic olefin polymer (A).

Elastic copolymer (b1) is an amorphous or low-crystalline and has a glass transition temperature not higher than 0°C, and therefore, it is soft and elastic. Preferably the density is from 0.85 to 0.91 g/cm3, more preferably from 0.85 to 0.90 g/cm3.

Elastic copolymer (b1) is produced by polymerization of at least two olefins, and usually it is a statistical copolymer. Preferably find application copolymers ethylene/α-olefin and copolymers of propylene/α-olefin, etc. without departing from the substance of the present invention elastic copolymer may contain, if desired, any other capable of copolymerization of unsaturated Monomeric component.

Starting material, α-olefin, copolymers of ethylene/α-olefin can be an α-olefin containing from 3 to 20 carbon atoms, and its examples are propylene, 1-butene, 1-penten, 1-hexene, 4-methyl-1-penten, 1-octene, 1-mission and mixtures thereof.

Of them, particularly preferred are α-olefins containing from 3 to 10 carbon atoms. Of them copolymer of ethylene/propylene is preferred due to its affinity to the cyclic olefin polymer (A). The molar ratio of ethylene to α-olefin (ethylene/α-olefin) copolymer ethylene/α-olefin varies depending on the type of α-olefin, but preferably the composition is yet from 30:70 to 95:5. The molar ratio (ethylene/α-olefin) is more preferably not less than 50:50, and more preferably not more than 90:10.

Starting material, α-olefin, copolymers of propylene/α-olefin may be an α-olefin containing from 4 to 20 carbon atoms, and examples include 1-butene, 1-penten, 1-hexene, 4-methyl-1-penten, 1-octene, 1-mission and mixtures thereof. Of them, particularly preferred are α-olefins containing from 4 to 10 carbon atoms. The molar ratio of propylene to α-olefin (propylene/α-olefin) copolymer of propylene/α-olefin varies depending on the type of α-olefin, but is preferably from 30:70 to 95:5. The molar ratio propylene/α-olefin) is more preferably not less than 50:50, and more preferably not more than 90:10.

Elastic copolymer (b2) is the elastic copolymer obtained by the polymerization of ethylene, α-olefin containing from 3 to 20 carbon atoms, and cyclic olefin. Elastic copolymer obtained by polymerization of at least three olefins, and usually it is a statistical copolymer. Without departing from the substance of the present invention elastic copolymer may contain, if desired, any other capable of copolymerization of unsaturated Monomeric component.

Specifically, examples of the source material, the α-olefin is, containing from 3 to 20 carbon atoms, for elastic polymer (b2) are propylene, 1-butene, 4-methyl-1-penten, 1-hexene, 1-octene, 1-mission 1-dodecene, 1-tetradecene, 1-hexadecene, 1 octadecene, 1 achozen. In this case, can be used one or more of these compounds. Source material, a cyclic olefin, for the elastic copolymer (b2) can be the same material that is used as a starting material for the cyclic olefin polymer (A).

Elastic copolymer (b2) is obtained by copolymerization of the monomers, preferably in a ratio of from 40 to 98 mol.%, more preferably from 50 to 90 mol.% ethylene, from 2 to 50 mol.%, more preferably from 5 to 40 mol.% another α-olefin of 2 to 20 mol.%, more preferably from 2 to 15 mol.% cyclic olefin. Elastic copolymer is an essentially linear statistical copolymer in which the constituent units derived from monomers configured randomly. Essentially linear structure of the elastic copolymer (b2)having no gel-like cross-linked structure is confirmed by the fact that the copolymer is completely dissolved in decaline at 135°C. the Elastic copolymer (b2) can be obtained by appropriate selection of the conditions for its receipt by the method used in the case of cyclic olepi the new polymer (A).

Elastic copolymer (b3) is the elastic copolymer obtained by polymerization of non-conjugate diene and at least two monomers selected from ethylene and α-olefin containing from 3 to 20 carbon atoms. Elastic copolymer (b3) is obtained by polymerization of at least one non-conjugate diene and at least two olefins, and usually it is a statistical copolymer. Specifically, the present invention find use ethylene/α-olefin/diene copolymer rubber and a propylene/α-olefin/diene copolymer rubber, etc. without departing from the substance of the present invention, the copolymer may contain, if desired, any other capable of copolymerization of unsaturated Monomeric component.

The alpha-olefin to build the ethylene/α-olefin/diene copolymer rubber can be an α-olefin containing from 3 to 20 carbon atoms, and its examples are propylene, 1-butene, 1-penten, 1-hexene, 4-methyl-1-penten, 1-octene, 1-mission and mixtures thereof. Of them, particularly preferred are α-olefins containing from 3 to 10 carbon atoms. The molar ratio of ethylene to α-olefin (ethylene/α-olefin in the ethylene/α-olefin/diene copolymer rubber varies depending on the type of α-olefin, but is preferably from 30:70 to 95:5.

The alpha-olefin to build a propylene/α-ol is fin/diene copolymer rubber can be an α-olefin, containing from 4 to 20 carbon atoms, and its examples are 1-butene, 1-penten, 1-hexene, 4-methyl-1-penten, 1-octene, 1-mission and mixtures thereof. Of them, particularly preferred are α-olefins containing from 4 to 10 carbon atoms. The molar ratio of propylene to α-olefin (propylene/α-olefin) in the propylene/α-olefin/diene copolymer rubber varies depending on the type of α-olefin, but is preferably from 30:70 to 95:5.

Examples of the diene component in the ethylene/α-olefin/diene copolymer rubber and propylene/α-olefin/diene copolymer rubber are linear unpaired diene, such as 1,4-decadiene, 1,6-octadiene, 2-methyl-1,5-hexadiene, 6-methyl-1,5-heptadiene, 7-methyl-1,6-octadiene; cyclohexadiene, Dicyclopentadiene; cyclic unpaired diene, such as methyltetrahydrofuran, 5-vinylnorbornene, 5-ethylidene-2-norbornene, 5-methylene-2-norbornene, 5-isopropylidene-2-norbornene, 6-chloromethyl-5-Isopropenyl-2-norbornene; 2,3-diisopropylidene-5-norbornene; 2-ethylidene-3-isopropylidene-5-norbornene; 2-propenyl-2,2-norbornadiene. Preferably the content of the diene component in the copolymer is from 1 to 20 mol.%, more preferably from 2 to 15 mol.%.

Elastic copolymer (b4) is the statistical or block copolymer or a product of hydrogenation of the aromatic vinyl hydrocarbon and a conjugated diene.

is as elastic copolymer (b4) are used butadiene-styrene block copolymer rubber, styrene-butadiene-styrene block copolymer rubber, isoprene-styrene block copolymer rubber, styrene-isoprene-styrene block copolymer rubber, hydrogenated styrene-butadiene-styrene block copolymer rubber, hydrogenated styrene-isoprene-styrene block copolymer rubber, butadiene-styrene statistical copolymer rubber.

In the elastic copolymer (b4) in the General case, the molar ratio of the aromatic vinyl hydrocarbon to a paired diene (aromatic vinyl hydrocarbon/conjugated diene) is preferably from 10:90 to 70:30. Hydrogenated styrene-butadiene-styrene block copolymer rubber is a copolymer rubber obtained by hydrogenating a part or all of double bonds remaining in the styrene-butadiene-styrene block copolymer rubber. Hydrogenated styrene-isoprene-styrene block copolymer rubber is a copolymer rubber obtained by hydrogenating a part or all of double bonds remaining in the styrene-isoprene-styrene block copolymer rubber.

One or more of the above elastic copolymers (b1), (b2), (b3) and (b4) can be used separately or in combination.

The radical polymerization initiator (C) may be any initiator capable of forming radicals by thermal degradation is placed under the action of heat during mixing in the melt, and the type is not specifically defined. Such initiators include peroxides, azo compounds and redox initiators. However, the initiators containing metal, not always favorable for molded products for clean rooms as the metal residues can contaminate the molded product. Nitrogen-containing compounds, such as azo compounds, can often be unfavorable, as the nitrogen evaporates from the molded part. Thus, for application in this case, the preferred organic peroxides. Preferably the radical polymerization initiator (C) is decomposed at a suitable speed during mixing in the melt, and the temperature at which the half-life reaches one minute, preferably is in the range from 30 to 250°C. More preferably, the temperature at which the half-life reaches one minute is in the range from 50 to 200°C.

Organic peroxides are used as the radical polymerization initiator (C)include ketone peroxides such as methyl ethyl ketone peroxide, cyclohexanone peroxide; peroxyketals, such as 1,1-bis(tert-BUTYLPEROXY)cyclohexane, 2,2-bis(tert-BUTYLPEROXY)octane; hydroperoxides, such as tert-butylhydroperoxide, the hydroperoxide cumene, 2.5-dimethylhexane-2,5-dihydroxymonoxide, 1,1,3,3-tetramet butylhydroperoxide; dialkylamide, such as di-tert-butylperoxide, 2,5-dimethyl-2,5-bis(tert-BUTYLPEROXY)hexane, 2,5-dimethyl-2,5-bis(tert-BUTYLPEROXY)hexyne-3; diazepamonline, such as laurelbrooke, benzoyl peroxide; complex peroxidase, such as tert-butyl peroxyacetate, tert-butyl peroxybenzoate, 2,5-dimethyl-2,5-bis(benzoylperoxy)hexane.

The resin composition used for molded products for clean rooms, obtained by mixing in the melt cyclic olefin polymer (A), the elastic polymer (b) and the radical polymerization initiator (C). In this case, the polyfunctional compound (D)containing in the molecule at least two capable of radical polymerization functional group may be added to such materials, and they are mixed in the melt in order to achieve more effective cross-linking. As a result, the abrasion resistance of molded products can be improved.

Polyfunctional compound (D)containing in the molecule at least two capable of radical polymerization functional group is, for example, divinylbenzene, vinyl acetate, vinylmethyl, triallylisocyanurate, diallylphthalate, ethylenemethacrylic, trimethylolpropane.

The resin composition used for molded products for cleanrooms from this is retene, receive by mixing in the melt 100 mass. parts of the cyclic olefin polymer (A), from 1 to 150 mass. parts of the elastic copolymer (B)from 0.001 to 1 mass. part of the radical polymerization initiator (C) and from 0 to 1 mass. part of the polyfunctional compound (D).

The number of elastic copolymer (b) is from 1 to 150 mass. parts relative to 100 mass. parts of the cyclic olefin polymer (A). When the number of elastic copolymer (b) less than 1 mass. part, and the abrasion resistance of the product from the resin cannot be improved sufficiently; and this amount is more preferably is at least 5 mass. parts. On the other hand, when the amount of elastic copolymer (B) more than 150 mass. parts, the rigidity of the obtained molded product may be low, and the product may be difficult to use in clean rooms. Preferably, the specified number is at most 125 mass. parts.

The amount of radical polymerization initiator (C) is preferably from 0.001 to 1 mass. parts based on 100 mass. parts of the cyclic olefin polymer (A). If the amount of the radical polymerization initiator (C) is less than 0.001 mass. part, the cross-linkage reaction may not proceed sufficiently and abrasion resistance molded from which the men can't be improved accordingly. Preferably, the specified amount is at least 0.01 mass. part. On the other hand, if the amount of the radical polymerization initiator (C) more than 1 mass. part, the release of gas from the resin composition can be increased and resistance to contamination of the composition may deteriorate. Preferably, the specified number is at most 0.5 mass. part.

The amount of polyfunctional compound (D) preferably ranges from 0 to 1 mass. parts based on 100 mass. parts of the cyclic olefin polymer (A). Polyfunctional compound (D) is an optional ingredient, and it can be added or not added to the composition. For the effective conduct of the cross-linkage reaction is preferably added to the composition of the specified connection. In this case, the preferred number of such compounds present in the composition is at least 0.001 mass. parts, more preferably, at least 0.01 mass. part. On the other hand, however, if the amount of the polyfunctional compound (D) is more than 1 mass. part, the release of gas from the resin composition can be increased and resistance to contamination of the composition may deteriorate. Preferably, the specified number is at most 0.5 mass. part.

Prefer the Ino resin composition, used for molded products for clean room of the present invention, further comprises carbon fibers (E). When including carbon fibers (E) the surface resistivity of the molded product can be reduced, and the adhesion of particles to the molded product can be prevented. In addition, in the presence of carbon fibers (E) the hardness of the molded product increases and the resistance of the surface friction is reduced, thus, the abrasion resistance of the body of the container is increased, and the generation of dust due to friction can be prevented. In addition, in the presence of carbon fibers (E) modulus of elasticity of the molded product increases. Therefore, when the size of the molded product is improved or even when he placed a heavy material, the accuracy of the linear dimensions remains good.

Type carbon fibers (E) is not specifically defined. Various carbon fibers such as polyacrylonitrile (PAN) fibers, carbonaceous fibers, cellulose fibers and ligninase fiber, can be used in this case. Given the ease of mixing in the melt compositions containing such fibers, short fibers are preferred. The carbon nanotube can also be used in this case as coal is native fibers.

The preferred content of the carbon fibers (E) is from 1 to 100 mass. parts based on 100 mass. parts total cyclic olefin polymer (a) and elastic copolymer (B). If the content of carbon fibers (E) is less than 1 mass. part, the antistatic properties of the molded product may be insufficient. In addition, with the high content of carbon fiber can be effective to improve the abrasion resistance and modulus of elasticity of the molded product. More preferably, the content of carbon fibers (E) is at least 2 mass. parts, even more preferably at least 6 wt. parts. On the other hand, if the content of carbon fibers (E) more than 100 masses. parts, the formability of the melt of the resin composition can be lowered and, in addition, the mechanical properties of the container shell may also decrease. More preferably, the content of carbon fibers (E) is at most 40 mass. parts, even more preferably at most 20 mass. parts.

As the conductive filler instead of carbon fibers (E) may be used carbon black. In this case, the fluidity of the melt resin composition containing carbon black, is not reduced too much, unlike the composition containing carbon fibers (E), and, therefore, carbon black is useful is the point of view of formemost composition. However, compared to carbon fibers (E) carbon black is not effective to increase the hardness of the molded product, to reduce the surface resistivity and to improve its resistance to abrasion, and, consequently, carbon fiber (E) is preferred. In addition, soot forms particles, and this is a disadvantage because it leads to easy formation of dust when Carpani.

In addition to the above antistatic agent composition may also contain a heat stabilizer, stabilizer resistance to weathering, reducing friction agent, caking agent, protivoopuholevymi agent, lubricating agent, dye, pigment, natural oil, synthetic oil, wax and organic or inorganic filler. However, when considering the fact that the molded product to clean the premises does not tolerate the release of volatile ingredients and soluble ingredients and does not tolerate the formation of particles, it is desirable that the amount of such additives was limited to the lowest level.

Below is described a method of obtaining a resin composition, which is intended for use for molded products for clean room of the present invention. The resin composition obtained by mixing in the melt cyclic olefin polymer (A), elastic the CSOs copolymer (b) and the radical polymerization initiator (C). Cyclic olefin polymer (a) and elastic copolymer (B) are mixed in the melt at the temperature at which decomposes the radical polymerization initiator (C), resulting in two components are the cross-linkage reaction with the formation of the resin composition with good resistance to abrasion. At this stage it is desirable that the functional compound (C) was added to the system together with the radical polymerization initiator (C), and the cross-linkage reaction can be carried out more efficiently.

By mixing all these original ingredients can be mixed at the same time, but preferred is a method of pre-mixing in the melt cyclic olefin polymer (a) and elastic copolymer (B), the subsequent addition of the radical polymerization initiator (C) and additional mixing in the melt. This procedure is necessary because the reaction cross-linkage, it is preferable to start at the stage when the cyclic olefin polymer (a) and elastic copolymer (B) are thoroughly mixed, and it gives a resin composition with good distribution.

When the cyclic olefin polymer (A), the elastic copolymer (b) and the radical polymerization initiator (C) is mixed in the melt, the melt viscosity of the obtained resin composition may increase sun is bedstvie reaction cross-linkage. Consequently, this can cause a problem with the method of molding, which requires a high level of fluidity of the melt. For example, when the resin composition is subjected to injection molding at high speed, or when the molding receive products of the big sizes, or when the molding receive products that require strict accuracy of the linear dimensions of such a resin composition is a good molded product cannot be obtained.

In these cases, it is desirable that the cyclic olefin polymer (A) was added to the system separately for two times. More specifically, preferred is the method of pre-mixing in the melt part of the cyclic olefin polymer (a) and elastic copolymer (B), then the addition of the radical polymerization initiator (C) and mixing in the melt, and then by adding the remaining cyclic olefin polymer (A) and mixing them in the melt. The mixture having a cross-linked structure of the cyclic olefin polymer (a) and elastic copolymer (B) may be diluted cyclic olefin polymer (A)having no cross-linked structure, and increase in the melt viscosity of the resin composition can be prevented. The resin composition obtained in accordance with the considered method can be significantly improved with the resistance to abrasion. Without any special definitions the ratio of the number of cyclic olefin polymer (A), which must be added prior to its quantity, which should be added at a later date (prior to the add/late addition), is preferably from 1:99 to 70:30. If this ratio (pre-add/late addition) is less than 1:99, and the abrasion resistance of the resin composition may decrease. More preferably, the ratio is at least 5:95. On the other hand, if the ratio (pre-add/late addition) more than 70:30, the effect of preventing the increase of melt viscosity of the resin composition may decrease. More preferably, the ratio is at least 50:50.

In addition to the above raw materials carbon fiber (F) is also preferably can be mixed with them in the melt. In this case, the carbon fiber can be added to the system at any time, without any special definition. When mixed cyclic olefin polymer (A), the elastic copolymer (b) and the radical polymerization initiator (C), while these may be added the carbon fiber (E). However, it is desirable that carbon fiber (E) was added after preliminary mixing in respl the ve three components, cyclic olefin polymer (A), elastic copolymer (B) and radical polymerization initiator (C), as is the ability to the distribution of the individual components could be better, and physical properties such as formability, resistance to abrasion and mechanical strength, the resin composition can be better. In this case, when the cyclic olefin polymer (A) is added to the system separately for two times as described above, carbon fiber (E) may be added together with the last part of the cyclic olefin polymer (A), or may be added immediately after it. The same procedure will apply in the case of any other filler other than carbon fibers (E), added to the system.

Cyclic olefin polymer (A), the elastic copolymer (b) and the radical polymerization initiator (C) can be mixed in the melt at any temperature at which the cyclic olefin polymer (a) and elastic copolymer (B) can be fused, and in which the radical polymerization initiator (C) may be subjected to decomposition. More specifically, the temperature preferably ranges from 150 to 350°C. For more effective stimulation of the cross-linkage reaction temperature of the mixture is preferably not less than 200°C. To prevent any excess is knogo thermal decomposition of the resin, the temperature of the mixture is preferably not more than 300°C. It is desirable to use a radical polymerization initiator (C), which has a half-life not longer than 1 minute at the temperature of mixing.

Device for mixing in the melt is not specifically determined. In this case, can be used various devices for mixing in the melt, including, for example, single screw extruder, twin screw extruder, rotating drum mixer Bunbury. Basically preferably used extruder, in particular mnogoshagovyi extruder such as a twin screw extruder, which provides sufficient mixing. When using an extruder, it is desirable that not only the standard auger, but also the mixing drive or reverse auger located in the extruder to improve mixing efficiency. Mixed in the melt of the resin composition may be directly molded as it is, or the composition of the resin can be converted into granules and then mixed in the melt.

When the cyclic olefin polymer (A), the elastic copolymer (b) and the radical polymerization initiator (C) is introduced into the reaction, the formation of decomposition products derived from the radical polymerization initiator and resin, is inevitable. Some of these decomposition products are volatile, and given the resistance to contamination molded who's products and smell, which may arise from such products, it is desirable that the effective removal. Thus, when the cyclic olefin polymer (A), the elastic copolymer (b) and the radical polymerization initiator (C) is mixed in the melt, it is preferable to use an extruder having an air valve. In this case, the volatile components can be removed through an air valve. Type air valve has no particular restrictions. This can be air valve opening to the air, but reducing pressure valve is used preferably for more effective removal of volatile components. When used mnogoshagovyi extruder such as a twin screw extruder, provided sufficient mixing and improves the removal efficiency of volatile components.

Preferably the melting time after adding the radical polymerization initiator (C) is from 30 to 1800 seconds. This time means the total time after adding the radical polymerization initiator (C) in the system and to obtain a molded product, in which the composition of the resin remains in the extruder, with the air valve. Therefore, when using two extruder, time is the total time spent in the two devices. On the other hand, when using the same extruder and ini is iator radical polymerization (S) added during the mixing process it, specified time means the time required for passing through the zone downstream after adding. The residence time can be calculated by dividing the internal capacity of the used extruder speed input. If the mixture is too low, the removal of volatile components may be unsatisfactory; preferably specified time is 60 seconds or more, even more preferably 120 seconds or more. If the mixing time is too large, the efficiency of reception may be reduced; preferred time should be no more than 1500 seconds, even more preferably not more than 1200 seconds.

Preferably MER (measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238) of the composition of the resin, thus obtained, is from 0.01 to 100 g/10 min If MER is less than 0.01 g/10 min, the resin composition may be difficult to mould from the melt, especially by injection molding. More preferably MER is at least 0.02 g/10 min, even more preferably at least 0.05 g/10 min. on the other hand, if MER more than 100 g/10 min, tensile strength and abrasion resistance of the molded product can be reduced. More preferably MER is at least 80 g/10 min, even more preferably at least 60 g/10 minutes

The composition of the resin molded from which aspreva obtaining molded products for clean room of the present invention. The method of molding is not specifically defined, but preferred is injection molding. The conditions of injection molding is not specifically determined. For example, it is preferable to use the terms below.

Installation the temperature of the cylinder;

180-340°C, more preferably 200-320°C.

Maximum writing speed:

100-240 ml/sec, more preferably 120-180 ml/sec.

Set pressure input:

100-250 MPa, preferably 150-220 MPa.

The molding temperature:

30-140°C, more preferably 30-80°C.

Speed input (ml/sec) represents a value obtained by multiplying the installation speed of the auger on the cross-section of the screw. The writing speed can often change during entry operations, and in the present invention, the maximum speed value input in one input operation is called maximum input speed (ml/sec). Moulded products for cleanrooms have a complex three-dimensional profile and require precision linear dimensions, and, in addition, many of them have a relatively large size. Thus, the molded product is preferably produced by injection molding at a maximum speed at a certain level. On the other hand, when the maximum input speed is too high, the resin may decompose due to shear heat is the notes and you should carefully consider this fact.

Preferably the total release of gas from the molded product of the present invention when heated at 150°C for 30 minutes is at most 20 μg/g, based on hexadecane. A small release of gas provides resistance to contamination of the molded product when used in the clean room. The total gas release more preferably is, at most, 15 μg/g, even more preferably at most 10 μg/year

Preferably the surface resistivity of the molded product is from 102up to 1012Ohms/square. Surface resistivity of at most 1012Ohms/square ensures the prevention of adhesion of particles to the molded product. More preferably, the surface resistivity is at most 1010Ohms/square.

It is also preferable hardness Rockwell surface of the molded product is from 90 to 125 (unit, R-scale). Having such a high hardness, a molded product may be the body of the container with good abrasion resistance. More preferably, the hardness is at least 100. To produce a molded product that has such a high hardness, it can be added to the carbon fibers (E). On the other hand, however, e is whether the hardness of the product is too high, the molded product may scratch or break the object contained in it. Hardness according to Rockwell, which is contained in the present invention, is a value (R-scale), measured at 23°C in accordance with ASTM D785.

Without any specific definition of molded products for clean room of the present invention may be any and every product used in clean rooms. These include, for example, containers, pallets and fixtures to manipulate materials, intermediate products and finished products in clean rooms.

One of the preferred embodiments of the invention is a container for plate elements selected from semiconductor substrates, substrates of the display substrate media records. Plate elements considered in this case include not only the elements of the large size, but also the chips obtained when cutting. Of these plate elements, a container for semiconductor wafers, which require manipulation under carefully controlled management, is the preferred embodiment of the invention. The container may be in direct contact with the plate element located therein, or may contain another container, which is titsa in direct contact with the plate element, in it.

Another preferred variant implementation is a device for manipulation of the material, intermediate product or finished product. A device of this type often is in direct contact with the material, intermediate product or finished product, and, consequently, the use of a molded product of the present invention for such a device is very advantageous. The device is, for example, forceps. The object that is manipulated with tweezers, not specifically defined. The device can be used to manipulate the products of various shapes, such as plate elements, blocks, containers. Of them molded product of the present invention is preferred in the case of devices for manipulating the plate elements selected from semiconductor substrates, substrates of the display substrate media records. More preferably, the product is useful in the case of devices for semiconductor wafers, which require manipulation under carefully controlled management.

A semiconductor substrate are substrates for receiving the integrated circuit substrate to obtain a photosensitive elements. Their material is typically silicon, but this material Conques is not determined to maintain. Their shape can be round, like the form of a silicon wafer, but may be square, like the form of photosensitive elements. In addition, it can also be chips cut from silicon wafers.

One of the above specific embodiments of the invention is a cassette for silicon wafers. The container for the clean room of the present invention, which releases a small amount of gas and forms a small amount of particles is useful for storing silicon wafers. The size of silicon wafers at the present time is increased, and the size of the cassette for such silicon wafers is also growing. Accordingly, with increasing size of the molded product will require a higher level of precision linear dimensions in General, and containers for the clean room of the present invention that can be formed with good precision linear dimensions, are preferred.

In the case of tape, called a carrier, in which silicon wafers are directly in line, silicon wafers are in direct contact with the carrier, and the pollution is especially the task. In addition, there may be cross contamination through the use of technological solutions. Thus, the molded ed is Leah clean room of the present invention is useful as a carrier of this type. In addition, a molded article for clean rooms of the present invention is also useful as container, or, for example, a case or box, where the media is stored, as well as for the concatenated containers, which serve as a carrier and storage.

Examples of substrates of the display is the substrate to obtain a liquid crystal display, a substrate for receiving the plasma display and the substrate to obtain an electroluminescent (EL) displays. The substrate is typically glass, but may be any other material, for example, transparent resin. Resistance to contamination is important for these substrates, displays, and use them moulded products for clean room of the present invention is advantageous. There are many substrates displays large sizes and use them moulded products for clean room of the present invention, which has good accuracy of the linear dimensions, is the best.

Examples of the substrate media accounts are substrates of hard disk drives and optical disk substrate. Material for hard drives is usually metal or glass, but not limited to. The material for the substrate of the optical disk is typically a transparent plastic, such as polycarbonate, but not limited to, the fact is they are. In such media records the composition of the recording film is changed depending on the entry form on it. When modern outstanding improvements in areal density of the media even minor contamination may exert a strong influence on the properties of the recording medium, and a molded product clean room of the present invention is useful for application in the case of such a framework.

EXAMPLES

The invention is described in more detail using the following examples. In the examples, the samples are analyzed and evaluated in accordance with the methods described below.

(1) glass transition Temperature:

The sample is heated at a heating rate of 10°C/min and record its DSC curve. About the glass transition temperature for the specified curve appears inflection point, giving a step-like temperature profile. In this case, the point at which the straight line, which is at the same distance in the vertical direction from the line extended from each of the main line crosses the DSC curve, called the intermediate glass transition temperature. The point at which the straight line extended from the main line on the low temperature side to the high temperature side, intersects the tangent line drawn to the maximum point of the slope of the step-like temperature profile curve, is called the is the temperature of the beginning of the glass transition. The point at which the straight line extended from the main line on the high temperature side to the low temperature side, intersects the tangent line drawn to the maximum point of the slope of the step-like temperature profile curve, is the temperature of the end of vitrification. In this case, as the glass transition temperature using a temperature of the glass transition.

(2) the Total gas release:

The sample obtained by molding a disk having a diameter of 150 mm, pre-washed. The washing operation is as follows. The sample is washed with a brush using a solution obtained by dissolving a surfactant in pure water, then dipped three times in ultrapure water, dehydrated and dried. The dried sample is cut into chips (chips). Approximately 0.1 g of chips is placed in a test tube and heated at 150°C for 30 minutes and the released gas is collected at -40°C and type in "online" in gas chromatography device to determine the total release of gas from the sample. The total amount of released gas count on hexadecan. To collect the released gas is used, the sampler type "purge-and-capture" when the Curie point "Model JHS-100A", manufacturing Nippon Bunseki Kogyo KK. For analysis and kolichestvennoj the determination using gas chromatography/mass spectrometry analyzers (GC/MS) "Model GC-14A" and "Model QP1100EX", production of Shimadzu Seisakusho. Hexadecanoyl solution with a known concentration, analyzed under the same conditions (heating at 150°C for 30 minutes, gathering at -40°C and analysis of GC/MS) and, based on the area of its peak, get converted into hexadecan the amount released from the gas sample.

(3) Abrasive quantity on a Taber (Taber's Abrasion Amount):

Abrasive number for the sample is determined in accordance with JIS K7204. Installation to determine the abrasive wear is Toyo Tester Kogyo; an abrasive - CS17; the load is equal to 1000 grams (each arm 500 g); the number of spins is 1000. When the resin composition contains carbon fiber or hydrophilic polymer, manufactured and experience obtained by molding a disk having a diameter of 150 mm When the resin composition contains no carbon fibers or hydrophilic polymer, fabricate, and test a sample of rectangular articles obtained by injection molding, which has a length of 130 mm, a width of 120 mm and a thickness of 2 mm In the comparative examples, in which analyze commercially available tapes for semiconductor wafers, flat cut out part of the U-shaped part of each sample and test. "U-shaped part" in this case represents the portion of the wall formed by vertically specified on the thoronet, figure 3.

(4) abrasion Resistance when scratching a silicon plate

Produced by molding under pressure a sample disk with a diameter of 150 mm, left at room temperature for 24 hours and then test. The sample disk is kept in contact with the outer edge of a silicon wafer having a diameter of 200 mm, and put to them a load of 500 g; and in such conditions, the sample is moved back and forth relative to the silicon wafer at a distance of 30 cm at a sliding speed of 50 cycles/min glide Direction is vertical to the front surface of the plate, and the front surface plate and tested the front surface of the sample disc hold vertically to each other; in such conditions, the sample is sliding within 2 hours. A silicon wafer is an 8-inch plate, produced by Wacker NSCE (thickness of 725±25 µm). The testing device is a device for determining the abrasion "NUS-ISO3", the production of Suga Shikenki. After testing the degree of abrasion is assessed visually in accordance with the criteria below. In the comparative examples, when analyzing commercially available media for silicon wafers, flat cut out part of the U-shaped part of each sample and subjected to test.

1 point: a Large number of abrasive dust which adheres both to the edge of the plate, and the sample disk.

2-5 points: Measured as intermediate points between 1 point and 6 points. Higher score indicates better abrasion resistance.

6 points: the Abrasive dust is not detected neither on the edge of the plate or on the sample disk.

(5) Surface resistivity;

Produced by molding under pressure a sample disk having a diameter of 50 mm, leave at room temperature for 24 hours, then conditioned at 23°C and at a relative humidity of 50% for at least 6 hours, and experience. First, the sample applied voltage of 100 V using a resistor Super Megohmmeter SM-8220", the production of Toa Denpa Kogyo. A copper plate having a thickness of 0.1±0.02 mm and the dimensions of 10×10 mm, placed between the contact of the positive electrode and the surface of the disk and the contact between the negative electrode and the surface of the disk, the distance between the two plates is 10 mm, the resistance of the copper plates used in this case, much smaller than the sample disk, and the first is minor. When the value of the surface resistivity of the sample tested is thus less than the limit of detection (5×105Ohm/square), use an ohmmeter resistance "R8340", Advantest manufacturing, and surface resistivity again determine if p is rozenom voltage 1 In accordance with ASTM D257. In the comparative examples, when analyzing commercially available media for silicon wafers, flat cut out part of the U-shaped part of each sample and subjected to test.

(6) the Accuracy of the linear dimensions

Sample media for silicon wafers obtained by injection molding, leave at room temperature for 24 hours and then conditioned at 23°C and at a relative humidity of 50% for at least 6 hours. After conditioning dimensions (mm) of the sample shown in figure 4, analyzed using image analyzer. The image analyzer is an automatic instrument for the assessment of the external form of silicon wafers "Model CV-9800, production Technology August. Analyzing five samples of the carrier plates of the same composition. Get the absolute value for each of the test values and the average value data for five trials, and the maximum value indicates fluctuations dimensions (mm) samples.

Example 1:

In this example, use the following materials (A)-(E):

Cyclic olefin polymer (A):

A statistical copolymer of ethylene and tetracyclo[4.4.0.12,5.17,10]-3-dodecene (hereinafter may be referred to as "TCD-3"). According to the13C-NMR, the content of ethylene in the copolymer is 62 mol.%; characteristic in scost [η], measured in decaline at 135°C, equal to 0.60 DL/g; glass transition temperature of the copolymer (Tarticle) is equal to 105°C. MER, measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238, is 8.2 g/10 min. Structural formula TCD-3 below.

[Compound 17]

Elastic copolymer (B):

Statistical copolymer of ethylene/propylene P-0880", production Mitsui Called. The ethylene content of 80 mol.%; the glass transition temperature (Tarticle) is -54°C; MER (measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238) is 0.4 g/10 min; [η] equal to 2.5 DL/g; density equal 0,867 g/cm3; and the degree of crystallinity, measured by x-ray diffraction, is approximately 10%.

The radical polymerization initiator (S):

"Perhexyne 25B", the production of Nippon Yushi. Its main ingredient (at least 90%) is 2,5-dimethyl-2,5-bis(tert-BUTYLPEROXY)hexyne-3. The temperature at which the half-life is equal to one minute, equal for 194.3°C.

Polyfunctional compound (D):

The divinylbenzene.

Carbon fiber (E):

Carbon fiber PAN-type "Besfight HTA-C6-UAL1, production Toho Tenax. The fibers are chopped stekloprjazhi having a diameter of 7 μm and a length of 6 mm and has its own specific resistance, good discharge performance is e 10 -3Ohm·see

Pellets of a statistical copolymer of ethylene/TSS-3 (2 kg) and pellets of a statistical copolymer of ethylene/propylene (2 kg), thoroughly mix, then mix in the melt in a twin-screw extruder ("PCM 45", production Ikegai Tekko) when the temperature of the cylinder 220°C and then transferred using a pelletizer into pellets (a).

Used in this case, the twin screw extruder has an L/D ratio of 42 and has an air valve at the two sites, approximately in the center and on the upper end of the cylinder of the extruder. Both the air valve opened to the air. The auger is mostly standard screw, but before and after the air valve approximately center is the mixing disk. The average time during which the supplied resin remains in the extruder and prior to its exit from the extruder, approximately 3 minutes.

To 4 kg of the above-described granules (a) add 4 g "Perhexyne 25V and 4 g of divinylbenzene and thoroughly mix. The mixture is placed in the above-described twin-screw extruder "PCM 45" (the temperature of the cylinder 230°C), where the mixture is mixed in the melt and reacts, and then translate it using a pelletizer into pellets (b).

Carefully mix 4 kg of the above-described granules (b) and 16 kg of a statistical copolymer of ethylene/TCD-3, then mixed in the melt in the above-described twin-screw ek is tradere RSM 45" when the temperature of the cylinder 220°C and then transferred using a pelletizer into pellets (C). Thus obtained granules (C) have MER measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238, 4 g/10 min Deformation resistance, measured under a load equal to 1.82 MPa in accordance with ASTM D648, 94°C.

The above pellets (C) and carbon fiber PAN-type "Besfight HTA-C6-UAL1 is available in a twin screw extruder to obtain Plastic Kogaku Kenkyujo when the mass ratio (granules (c)/carbon fiber) 90:10 and mixed in the melt. Used in this case, the extruder is a twin screw extruder with co-rotating augers which engages, which has a screw diameter of 35 mm and a ratio L/D of 35.

The extruder consists of parts C1, C2, C3, C4, C5, H and D, if you start the engine, and the temperature of each part is controlled by an independent heaters. Part S1 is the supply input for the pellets of the resin composition; a portion C3 is the supply input for the carbon fiber; and an area encompassing parts of C4 and C5 has a vent. Supply input for the pellets of the resin composition and the supply input for the carbon fibers are open to the air. The vent is connected to a vacuum pump, through which the extruder is forced escaped by reducing the pressure.

Auger is a prefabricated screw segment type, and the screw has sleduushuu the design. The standard auger having a length of 127.5 mm, is in part C1. In part C2 standard auger having a length of 120 mm, the mixing disk, having a length of 85 mm, and the standard auger having a length of 72.5 mm, are located in the specified order. In part C3 standard auger, having a length of 205 mm, and the mixing disk, having a length of 42.5 mm, are located in the specified order. In part C4 reverse auger, having a length of 85 mm, and a standard screw having a length of 180 mm, are located in the specified order. In part C5 is the standard auger having a length 212,5 mm part N reverse auger having a length of 10 mm, and the standard auger with Dinah 42.5 mm, are located in the specified order.

Granules (C) submit to the extruder through the supply input for the composition of the resin part C1; carbon fiber PAN-type is added to the extruder through a feed input for carbon fibers in part C3 using power supply units, working on weight loss. The temperature of the cylinder set at 250°C, at which the components are mixed in the melt while rotating the auger about 200 rpm At this stage extruder force Tegaserod under reduced pressure, below atmospheric pressure of 0.06 MPa through a vent at the boundary part between C4 and part C5, using a vacuum pump. The residence time of the resin in the extruder is in listello 3 minutes. The resin extruded from the extruder, cooled by water, and the resulting strand is cut using a pelletizer into pellets (d).

Obtained in the described manner granules (d) is a mixture obtained by mixing in the melt 100 mass. parts of the cyclic olefin polymer (A), 11 mass. parts of the elastic copolymer (B)of 0.022 mass. part of the radical polymerization initiator (C), 0,022 masses. part of the polyfunctional compound (D) and 12 of the masses. parts carbon fibers (E). 100 masses. parts of the cyclic olefin polymer (A), 11 mass. parts of polymer are mixed in advance and 89 of the masses. parts added and mixed later. MER granules (d) (measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238) is 1.7 g/10 minutes

Granules (d) served in a car diecast "Nestal R/100", the production of Sumitomo Jukikai Kogyo, and molded at a temperature resin 240°C, when the mold temperature of 70°C and when the clamping force of the form 100 tons, all samples for testing, having a diameter of 50 mm and a thickness of 3 mm, and rectangular samples for testing, having a length of 125 mm, a width of 13 mm and a thickness of 3 mm Five round samples for testing have surface resistivity, and they all have a resistance of 103up to 105Ohms/square. All samples for testing are tested for hardness according to Rockwell in accordance with the standard of the m ASTM D785, and their hardness R scale is 107. Five rectangular samples for testing have their modulus according to ASTM D790, and they have an average modulus of elasticity 4900 MPa. The results obtained are presented in table 1.

Granules (d) served in a car diecast "J45OE-C5", manufacturing Nippon Seiko-sho, and molded in the 200-mm cassette for silicon wafers, shown in Fig.1-3. In addition, samples of disks with 150 mm and a thickness of 30 mm, is formed in the same way as described above. The diameter of the auger machine injection molding is 76 mm, Use the following molding conditions:

Installation temperature of cylinder: 260°C.

Maximum set speed of the screw: 31 mm/sec,

(the maximum speed of the resin composition: 141 ml/sec).

Set pressure input: 200 MPa.

In accordance with the method described above, the molded products have to determine the total release of gas, abrasive quantity by the Taber, abrasion resistance when Carpani silicon plate and the accuracy of the linear dimensions. The results obtained are presented in table 1.

Example 2:

Granules (C)obtained in example 1, is subjected to the injection molding method, analogously to example 1, and test to determine the total release of gas, abrasive quantity p is the Taber, resistance to abrasion when scratching the silicon plate and the accuracy of the linear dimensions. The results obtained are presented in table 1.

Example 3:

In example 1, only the pellets (C) without carbon fibers served in a twin screw extruder to obtain Plastic Kogaku Kenkyujo and mixed in the melt in the extruder with forced degassing extruder, instead of filing it as granules (C), and carbon fibers and mixing in the melt, the result of the granules (f). The ratio of mixing of materials for pellets (e) is the same as the ratio of the blend pellets (C). Granules (e) is subjected to injection molding method, analogously to example 1, and the molded products have to determine the total release of gas and surface resistivity. The results obtained are presented in table 1.

Example 4:

Thoroughly mix 18 kg statistical copolymer of ethylene/TCD-3 and 2 kg of a statistical copolymer of ethylene/propylene, then mixed in the melt in the same twin-screw extruder ("PCM 45", production Ikegai Tekko), as in example 1, when the temperature of the cylinder 220°C, and then transferred using a pelletizer into pellets (f). MER granules (f) (measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238) of 1.6 g/10 minutes

To 20 kg of granules obtained above (f) add 4 g "Perhexyne 25 and 4 g DV is albenzae and thoroughly mix. The mixture is placed in the above-described twin-screw extruder "PCM 45" (the temperature of the cylinder 230°C), where the mixture is mixed in the melt and reacts, and then translate it using a pelletizer into pellets (g). MER (measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238) granules (g) is 0.1 g/10 min Granules (g) are subjected to injection molding method, analogously to example 1, and molded articles having abrasive quantity by the Taber and surface resistivity. The results obtained are presented in table 1.

Comparative example 1:

Granules (f)obtained in example 4 is subjected to injection molding method, analogously to example 1, and the molded products have to determine the abrasion amount in the Taber and surface resistivity. The results obtained are presented in table 1.

Comparative example 2:

Granules (h)containing carbon fiber, is produced by way similar to example 1, however, instead of granules (C) in example 1 use of a statistical copolymer of ethylene/TSS-3. Granules (h) is subjected to injection molding method, analogously to example 1, and the molded products have to determine the total release of gas, Rockwell hardness, abrasive quantity by the Taber, abrasion resistance when Carpani silicon p is astinos, the surface resistivity and the accuracy of the linear dimensions. All the results presented in table 1.

Comparative example 3:

Statistical copolymer of ethylene/TCD-3 is subjected to injection molding method, analogously to example 1, and the molded products have to determine the abrasion amount in the Taber and surface resistivity. The results obtained are presented in table 1.

Comparative example 4:

Cartridge for silicon wafers and samples of disks formed by the method similar to example 1, but instead of granules (d)used in example 1, using pellets of polybutylene terephthalate (RHT) ("CA7200NX, production Wintec Polymer), having a stable antistatic properties. Pellets are a mixture obtained by mixing an antistatic agent, a hydrophilic polymer with polybutylene terephthalate. Use the following molding conditions:

Installation temperature of cylinder: 240°C.

Installation mold temperature: 50°C.

Maximum set speed of the screw: 31 mm/sec

(the maximum speed of the resin composition: 141 ml/sec).

Set pressure input: 200 MPa.

In accordance with the methods described above, the molded products have to determine the Rockwell hardness, abrasive quantity by the Taber abrasion resistance with Carpani silicon wafers, the surface resistivity and the accuracy of the linear dimensions. All the results presented in table 1.

Comparative example 5:

Cartridge for silicon wafers and samples of disks formed by the method similar to example 1, however, instead of granules (d)used in example 1, using pellets of polypropylene (PP) ("ECXT-396NA, Mitsubishi Called), having a stable antistatic properties. Pellets are a mixture obtained by mixing an antistatic agent, a hydrophilic polymer with polypropylene. Use the following molding conditions:

Installation temperature of cylinder: 210°C.

Installation mold temperature: 50°C.

Maximum set speed of the screw: 31 mm/sec (the maximum speed of the resin composition: 141 ml/sec)

Set pressure input: 200 MPa.

In accordance with the methods described above, the molded products have to determine the Rockwell hardness, abrasive quantity by the Taber, abrasion resistance when scratching a silicon plate, the surface resistivity and the accuracy of the linear dimensions. All the results presented in table 1.

Comparative examples 6-8:

Get a variety of commercially available 200-mm cassette for silicon wafers and their "U-shaped part exp is taut. In accordance with the methods described above, the samples have to determine the Rockwell hardness, abrasive quantity by the Taber, abrasion resistance when scratching a silicon plate, the surface resistivity and the accuracy of the linear dimensions. All the results presented in table 1.

"KM-K-A1, production Miraial (comparative example 6): a mixture of PEEK (easy polyester piroctone) with added graphite powder.

"KM-854NE-A"production Miraial (comparative example 7): a mixture of RHT (polybutylene terephthalate) with added graphite powder.

"KM-823S-A"production Miraial (comparative example 8): a mixture of PP (polypropylene) with added filamentary crystals.

As can be seen from table 1, the molded product of the present invention have good resistance to abrasion. For example, in comparison with the resistance of comparative example 2, where the cyclic olefin polymer (A) only added carbon fiber (E), the sample of example 1, which also added elastic copolymer (B), the radical polymerization initiator (C) and the polyfunctional compound (D), in order to introduce a cross-linked structure, the molded product has significantly reduced abrasion amount in the Taber and has the means is the super superior abrasion resistance when Carpani plate. In addition, compared to commercially available compositions of resins and commercially available molded products of comparative examples 4-8, the sample of example 1 is at a higher level. In comparison with the sample of comparative example 1, where only mixed cyclic olefin polymer (a) and elastic copolymer (B), the sample of example 2, which also added the radical polymerization initiator (C) and the polyfunctional compound (C), in order to introduce a cross-linked structure, the molded product has a significantly lower abrasive quantity by the Taber. This confirms the fact that not only add an elastic component to the resin, but also the introduction into the resin cross-linked structure is important for improving the abrasion resistance of the molded product from the resin. Comparative examples 1 and 2 confirm the fact that the addition of carbon fibers (E) to the composition reduces the abrasive number on the Taber molded product. With regard to the stability of the molded product to a scratching silicon plates, the effect of added carbon fibers (E) is significant. Thus, it is clear that the use of the resin composition, which contains added carbon fiber (E), is particularly advantageous in the case of applications where products could the t to be subject to such abrasion.

On the other hand, it is clear that the sample of comparative example 2, where the cyclic olefin polymer (A) only added carbon fiber (E), releases a certain quantity of gas; but it is also clear that from the sample of example 1, where stimulation of the reaction cross-linkage in a molded product added elastic copolymer (B), the radical polymerization initiator (C) and the polyfunctional compound (D), the release of gas is significantly reduced. Unexpectedly, the release of gas from the molded product is reduced, although the resin for chemical reactions add such a small molecule compound. This is because the operation of mixing in the melt with degassing under reduced pressure can be effective to reduce the release of gas. It is obvious that in comparison with release of gas from the sample of example 2, where the mixture is mixed in the melt in the extruder, with the air valve open for air, the total release of gas from the sample of example 3, where the mixture is again mixed in the melt with degassing in vacuum, is strongly reduced.

The sample of example 4, where the radical polymerization initiator (C) and the polyfunctional compound (D) is added to a mixed in the melt mixture of the cyclic olefin polymer (a) and elastic copolymer (B) to stimulate mixture in the reaction p is pepper stitching, has a lower MER, and the resin composition can hardly be subjected to molding in some embodiments of the application. In contrast, the resin composition of example 2, where the ingredients are pre-mixed to stimulate the cross-linkage reaction and then diluted cyclic olefin polymer (A)has a significantly higher MER, which confirms that the fluidity of the resin composition is significantly improved. The results of example 1 also confirm the fact that even when you add carbon fiber (E), the resin composition can still have good fluidity. Because of the composition of the resins have good fluidity and cyclic olefin polymer (A) is amorphous, the composition of the resins of the present invention give good molded products with higher precision linear dimensions than the precision of the linear dimensions of commercially available products of comparative examples 4-7.

1. Molded product to work with materials, intermediate products or finished products in clean rooms, selected from the group consisting of a container, tray and tool, comprising a resin composition obtained by mixing in the melt:
100 parts by weight cycloolefin polymer (A)obtained by polymerization of cycloolefin selected from the group consisting of bicyclo[2.2.1]-2-Heptene and it is derived, tricyclo[4,3,0,12,5]-3-mission and its derivatives, and tetracyclo[4,4,0,12,5,17,10]-3-dodecene and its derivatives, and having a glass transition temperature from 60 to 200°C,
from 1 to 150 parts by weight of amorphous or nizkochastotnogo elastic copolymer (B(b1))obtained by polymerization of at least two monomers selected from the group consisting of ethylene and α-olefin having 3 to 20 carbon atoms and having a glass transition temperature of 0°C or below,
from 0.001 to 1 part by mass of the radical polymerization initiator (C), a peroxide, and
from 0 to 1 part by weight of a polyfunctional compound (D)having at least two polymerized by radicals functional group selected from the group consisting of vinyl group, allyl group, acrylic group and metacrilato group in the molecule.

2. Molded product according to claim 1, where the cyclic olefin polymer (A) is a statistical copolymer of ethylene and cyclic olefin.

3. Molded product according to claim 1 or 2, where MER (the flow rate of the melt, measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238) of the cyclic olefin polymer (A) has a value from 0.1 to 500 g/10 minutes

4. Molded product according to claim 1 or 2, where the resin composition further comprises carbon fibers (E) and their contents sostav the et from 1 to 100 parts by weight of based on 100 parts by weight total of the cyclic olefin polymer (a) and elastic copolymer (B(b1)).

5. Molded product according to claim 1 or 2, where MER (measured at 230°C. and under a load of 2.16 kg in accordance with ASTM D1238) of the resin composition has a value from 0.01 to 100 g/10 minutes

6. Molded product according to claim 1 or 2, where the total amount of released gas when heated at 150°C for 30 min is at most 20 μg/g in terms of hexadecan.

7. Molded product according to claim 1 or 2, which has a surface resistivity ranging from 102up to 1012Ohms/square.

8. Molded product according to claim 1 or 2, which is a container for plate element selected from a substrate for a semiconductor substrate for displays and substrates for media records.

9. Molded product of claim 8, where the plate element is in direct contact with the container.

10. Molded product of claim 8, where the container must contain a container that is in direct contact with the plate element.

11. A method of obtaining a molded product to work with materials, intermediate products or finished products in clean rooms, selected from the group consisting of a container, tray and tool, which involves mixing in the melt:
100 frequent the th mass cycloolefin polymer (A), obtained by polymerization of cycloolefin selected from the group consisting of bicyclo[2.2.1]-2-Heptene and its derivatives, tricyclo[4,3,0,12,5]-3-mission and its derivatives, and tetracyclo[4,4,0,12,5,17,10]-3-dodecene and its derivatives, and having a glass transition temperature from 60 to 200°C,
from 1 to 150 parts by weight of amorphous or nizkochastotnogo elastic copolymer (B(b1))obtained by polymerization of at least two monomers selected from the group consisting of ethylene and α-olefin having 3 to 20 carbon atoms and having a glass transition temperature of 0°C or below,
from 0.001 to 1 part by mass of the radical polymerization initiator (C), a peroxide, and
forming from the melt obtained resin composition.

12. A method of obtaining a molded product according to claim 11, where the polyfunctional compound (D)containing in the molecule at least two capable of radical polymerization functional group, add together with the radical polymerization initiator (C).

13. A method of obtaining a molded product according to claim 11 or 12, where the cyclic olefin polymer (a) and elastic copolymer (B(b1)) are pre-mixed in the melt and then add to them the radical polymerization initiator (C) and mixed in the melt with obtaining a resin composition.

14. A method of obtaining a molded product is about 13, where part of the cyclic olefin polymer (a) and elastic copolymer (B(b1)) are pre-mixed in the melt, then add to them the radical polymerization initiator and mixed in the melt, and then add the remaining cyclic olefin polymer (A) and mixed in the melt with obtaining a resin composition.

15. A method of obtaining a molded according to any one of § § 11, 12 or 14, where add from 1 to 100 parts by weight of carbon fibers (E) based on 100 parts by weight total of the cyclic olefin polymer (a) and elastic copolymer (B(b1)) and mixed in the melt with obtaining a resin composition.

16. A method of obtaining a molded product according to any one of § § 11, 12 or 14, where the temperature by mixing in the melt to obtain a resin composition ranges from 150 to 350°C.

17. A method of obtaining a molded product according to any one of § § 11, 12 or 14, where the extruder, having an air valve is used for mixing in the melt in order to obtain a resin composition.

18. A method of obtaining a molded product 17, where the time during which the melt after the addition of the radical polymerization initiator (C) remains in the extruder is from 30 to 1800 C.

19. A method of obtaining a molded product according to any one of p, 16 or 18, where the resin composition is subjected to injection molding at a maximum speed of input from 100 to 240 ml/C.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: present invention pertains to a method of obtaining a resin composition. Description is given of the method of obtaining a resin composition through mixture in a molten mass of 100 weight parts of cyclic olefin polymer (A), whose glass transition temperature ranges from 60 and 200°C, and 1-150 weight parts of elastic polymer (B), with glass transition temperature 0°C or lower. Part of the cyclic olefin polymer (A) is first mixed in a molten mass with elastic polymer (B) and 0.001-1 weight parts of radical polymerisation initiator (C). The remaining cyclic olefin polymer (A) is then added and mixed in the molten mass. The ratio of the quantity of cyclic olefin polymer (A), initially added, to the quantity of the same polymer added later (initially added/added later) ranges from 1:99 to 70:30. Cyclic olefin polymer (A) is divided into two parts and added separately twice, such that, the mixture with a cross-linked structure can be diluted with cyclic olefin polymer (A), without a cross-linked structure. As a result, increase in the viscosity of the molten resin composition can be prevented.

EFFECT: good abrasion resistance and good moulding properties of the molten mass.

15 cl, 1 tbl, 4 ex

The invention relates to a method of polymerization of cyclic olefins by photochemical metathetical polymerization erection cycle with the use of catalytic amounts of a catalyst based on a transition metal and to compositions containing these olefins with a catalytic amount of a catalyst

FIELD: chemistry.

SUBSTANCE: there is disclosed foam thermoplastic gel composition containing (a) block copolymer containing at least one polymer block A made of monovinyl aromatic compound, and at least one polymer block B made of conjugated diene; (b) liquid component chosen from the group including filling oils, plasticiser and solvents compatible with said block copolymer (a); (c) thermoplastic particles foam when heated containing gas extended when heated or condensed gas, and optionally (d) photoinitiator characterised that block copolymer (a) represents a block copolymer cross-linked when irradiated and contains monovinyl aromatic compound 7 to 35 wt % of total polymer with total apparent molecular weight 50 to 1500 kg/mol and vinyl content in block B 10 to 80 mole %, where blocks B are probably hydrogenated thus residual initial ethylene unsaturation is at least 25 %. There is also disclosed production process of said foam elastic thermoplastic gel composition (versions), as well as application of said foam elastic gel composition.

EFFECT: production of low-density oil gels of improved hear resistance.

13 cl, 6 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: present invention pertains to a method of obtaining a resin composition. Description is given of the method of obtaining a resin composition through mixture in a molten mass of 100 weight parts of cyclic olefin polymer (A), whose glass transition temperature ranges from 60 and 200°C, and 1-150 weight parts of elastic polymer (B), with glass transition temperature 0°C or lower. Part of the cyclic olefin polymer (A) is first mixed in a molten mass with elastic polymer (B) and 0.001-1 weight parts of radical polymerisation initiator (C). The remaining cyclic olefin polymer (A) is then added and mixed in the molten mass. The ratio of the quantity of cyclic olefin polymer (A), initially added, to the quantity of the same polymer added later (initially added/added later) ranges from 1:99 to 70:30. Cyclic olefin polymer (A) is divided into two parts and added separately twice, such that, the mixture with a cross-linked structure can be diluted with cyclic olefin polymer (A), without a cross-linked structure. As a result, increase in the viscosity of the molten resin composition can be prevented.

EFFECT: good abrasion resistance and good moulding properties of the molten mass.

15 cl, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention refers to rubber-processing industry, in particular to development of thermoplastic elastomeric rubber materials that can be used for manufacturing of various extrusion profiles and moulded flexible parts for automotive, cable, light industry and construction engineering. Thermoplastic elastomeric material is made of composition including, wt. fraction: rubber - 100, polyolefin - 2-150, vulcanising agent 1-15, vulcanisation activator 3-10, stearic acid - 0.75-2.0, oil - 25-500 and bulk additive - 1-100, modified diene-containing thermoplastic elastomer, such as hydrooxylated, halogenated, hydrogenated or hydrohalogenated dienevinylaromatic thermoplastic elastomer - 5-150, release agent - zinc stearate, calcium stearate or their mixture - 0.1-2.0. As oil additive the material contains paraffine-naphthene oils, as bulk additive is contains powder filler with particle size 100 nanometers to 20 microns, selected from the group: schungite, kaolin, chalk, talcum powder or carbon white, as well as mixed mineral additive with 0.04-4.0 mass % of industrial carbon. Thus as rubber thermoplastic elastomeric material contains ethylene-propylene-diene rubber with propylene chains 27 to 40 mass %, and as the third comonomer is contains ethylidene norbornene or dicyclopentadiene in amount 2-10 mass %, as well as butyl rubber, chlorbutyl rubber, brominated butyl rubber, polyisoprene rubber, butadiene-styrene rubber, or polybutadiene rubber. As polyolefin it contains isotactic polypropylene, polyethylene or their mixture at ratio of polyethylene mixed with isotactic polypropylene in amount of 5-95 mass %.

EFFECT: production of material possessing high technological and physical-mechanical properties, melt processability to products without vulcanisation by moulding under pressure or extrusion, low density, high fullness by oil.

5 cl, 2 tbl

FIELD: polymer production.

SUBSTANCE: invention provides elastomeric polymer composition comprising at least polymers and copolymers obtained from substituted and unsubstituted vinylaromatic monomers and from diene monomers and including 15 to 85% copolymer containing (i) at least one block formed by 10 to 5000 mainly syndiotactic structural sequences of monomer units derived from at least one substituted or unsubstituted vinylaromatic monomer and (ii) at least one block formed by 10 to 4000 monomer units derived from at least one diene monomer with predominant 1,4-cis structure, wherein 15-85 wt % of polymer obtained from diene monomers has molecular weight between 6000 and 600000 with content of 1,4-cis monomer units constituting at least 90%, while up to 70% of polymer obtained from substituted and unsubstituted vinylaromatic monomers has molecular weight between 10000 and 500000 and degree of syndiotacticity (expressed through syndiotactic pentads) at least 95%, a part formed by monomer units derived from diene monomer is optionally partially or completely hydrogenised. Method of preparing such elastomeric composition is also described.

EFFECT: extended temperature range for elastomeric performance of composition.

42 cl, 5 tbl, 27 ex

FIELD: manufacture of building materials.

SUBSTANCE: invention relates to heat- and hydroinsulation materials suitable for making and repairing various-type roofings, in particular to gluing roll bitumen and bitumen-polymer materials to brick, concrete, metal, wood, ceramic, and other surfaces, as well as for mastic hydroinsulation of construction units of buildings and installations. Bitumen-polymer mastic is composed of. wt %: toluene 31-34, bitumen 30.5-37, thermoelastoplastic 5-11.5, mineral filler (talc) 21-23, resin-colophony 2.5-3.5. Mastic preparation method is also described.

EFFECT: simplified composition and simplified mastic preparation method, achieved compatibility of mastic with a variety of materials, in particular with roofing materials.

4 cl

FIELD: manufacture of building materials.

SUBSTANCE: invention relates to heat- and hydroinsulation materials suitable for making and repairing various-type roofings, in particular to gluing roll bitumen and bitumen-polymer materials to brick, concrete, metal, wood, ceramic, and other surfaces, as well as for mastic hydroinsulation of construction units of buildings and installations. Bitumen-polymer mastic is composed of. wt %: toluene 27-29, bitumen 31-33, thermoelastoplastic 11-13, mineral filler (talc) 23-25, resin-colophony 3-5. Mastic preparation method is also described.

EFFECT: simplified composition and simplified mastic preparation method, achieved compatibility of mastic with a variety of materials, in particular with roofing materials.

4 cl

FIELD: manufacture of building materials.

SUBSTANCE: invention relates to heat- and hydroinsulation materials suitable for making and repairing various-type roofings, in particular to gluing roll bitumen and bitumen-polymer materials to brick, concrete, metal, wood, ceramic, and other surfaces, as well as for mastic hydroinsulation of construction units of buildings and installations. Bitumen-polymer mastic is composed of. wt %: toluene 48-50, bitumen 19-21, thermoelastoplastic 12.5-14,5, mineral filler (talc) 13-15, resin-colophony 2.5-4.5. Mastic preparation method is also described.

EFFECT: simplified composition and simplified mastic preparation method, achieved compatibility of mastic with a variety of materials, in particular with roofing materials.

4 cl

FIELD: polymers, chemical technology.

SUBSTANCE: invention relates to a method for synthesis of copolymer used in rubber mixture and cross-linked with sulfur with reduced hysteresis in cross-linked state and comprising two blocks wherein one block consists of polyisoprene and another block consists of styrene-diene elastomer distinct from polyisoprene, and to a rubber mixture for tire protectors. Method for synthesis of copolymer involves co-polymerization of one or some monomers comprising coupled diene distinct from isoprene and by using catalytic system comprising at least one hydrocarbon solvent, metal compound A from the group IIIA, alkaline metal compound B and polymeric initiator C with a bond C-Li that consists of monolithiated polyisoprene designated for formation of polyisoprene block and wherein an average molecular mass Mn1 of indicated polyisoprene block is in the range between 2500 and 20000 g/mole. Method involves to preparing copolymer wherein another block consisting of indicated diene elastomer with an average molecular mass Mn2 between 65000 and 350000 g/mole and the content of trans-1,4-bonds is 70% or above. Invention provides reducing hysteresis of mixtures to limit consumption of fuel and to provide safety of environment.

EFFECT: improved method of synthesis.

22 cl, 5 tbl, 5 ex

FIELD: transport of gases, liquids and suspensions.

SUBSTANCE: protecting coating for tubes contains bitumen composition including, mass %: bitumen, 20 - 98; block-copolymer of vinyl aromatic hydrocarbon and conjugated diene with hydrogenated diene block, 0.5 - 30; stereo-regular polyolefin, 0.5 - 30; and filler, 1 - 50 for total mass of bitumen composition.

EFFECT: improved operational characteristics of tubes with such coating.

9 cl, 2 tbl, 3 ex

FIELD: manufacture of materials changing physical, chemical and mechanical properties of road, bridge and airfield pavement components.

SUBSTANCE: proposed binder for road pavement contains mixture of bitumen, block copolymer of diene and styrene and additives in form of improved paving bitumen. Craton is used as block copolymer of diene and styrene and oil fraction obtained from direct refining of heavy low-paraffin naphthene base is used as additive; it is characterized by kinematic viscosity at +50°C from 65 to 85 cSt, solidifying temperature below -18°C; binder is characterized by tensibility more than 70 cm at +25°C, elasticity more than 70% at +25°C, softening temperature more than 65°C and viscous-flow state at 135°C.

EFFECT: improved physico-mechanical properties of bitumen pavement.

4 tbl

FIELD: chemistry.

SUBSTANCE: present invention pertains to a method of obtaining a resin composition. Description is given of the method of obtaining a resin composition through mixture in a molten mass of 100 weight parts of cyclic olefin polymer (A), whose glass transition temperature ranges from 60 and 200°C, and 1-150 weight parts of elastic polymer (B), with glass transition temperature 0°C or lower. Part of the cyclic olefin polymer (A) is first mixed in a molten mass with elastic polymer (B) and 0.001-1 weight parts of radical polymerisation initiator (C). The remaining cyclic olefin polymer (A) is then added and mixed in the molten mass. The ratio of the quantity of cyclic olefin polymer (A), initially added, to the quantity of the same polymer added later (initially added/added later) ranges from 1:99 to 70:30. Cyclic olefin polymer (A) is divided into two parts and added separately twice, such that, the mixture with a cross-linked structure can be diluted with cyclic olefin polymer (A), without a cross-linked structure. As a result, increase in the viscosity of the molten resin composition can be prevented.

EFFECT: good abrasion resistance and good moulding properties of the molten mass.

15 cl, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: described are amorphous perfluoridated (co)polymers of perfluorodioxols of formula (IA): where R'F is equal RF or ORF, where RF represents linear or branched perfluoroalkyl radical, which has 1-5 carbon atoms, preferably R'F=OCF3; X1 and X2 are identical or different, represent F, CF3; where content of perfluorodioxol is ≥95% in moles, having the following combination of properties: Tg , measured in compliance with method ASTM 3418 (DSC), from 180°C to195°C, preferably from 190°C to 192°C; characteristic viscosity, measured with temperature 30°C in perfluorheptane (Galden® D80) in compliance with method ASTM D 2857-87, from 13 cm3/g to 100 cm3/g.

EFFECT: polymers have increased efficiency.

20 cl, 11 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention claims application of amorphous perfluorated polymers in obtaining transparent films with transparency over 50% at 157 nm width, where the perfluorated polymers do not contain ion end groups and consist of cyclic units obtained from perfluorodioxols of formula: , where R'F is the same as RF or ORF, where RF is linear or branched perfluoroalkyl radical with 1-5 carbon atoms; X1 and X2 are the same or different and represent F, CF3; the polymers include optionally units obtained from perfluorated comonomers containing at least one unsaturated ethylene-type link and optionally containing oxygen atoms; cyclic polymers units obtained from perfluordioxols of formula (IA) comprise ≥95 % of mol quantity.

EFFECT: obtaining highly transparent amorphous perfluorated polymers.

8 cl, 8 ex

FIELD: chemistry.

SUBSTANCE: invention concerns paintwork materials, particularly development of new film-forming composition and method for obtaining same based on indene-cumarone fraction. The film-forming composition is a mix of polymers and solvent, where polimerisation products of indene-cumarone fraction (stillage bottoms of chemical recovery benzene, toluene, xylene production) containing indene, cumarone, styrene and homologues thereof are used as polymers. Non-resinated part of indene-cumarone fraction comprises at least partially used as solvent, and solvent content in the film-forming composition is at least 5% of mass. The proposed film-forming composition is obtained by polymerisation of indene-cumarone fraction through acid catalyst dosage at the temperature not over 120°C, with further sedimentation and separation of acid layer.

EFFECT: extended range of paintwork materials at lower production cost.

6 cl, 8 ex

FIELD: chemistry.

SUBSTANCE: rubber mix consists of (mass part): styrol-butadiene rubber containing 22-25 mass % of styrol - 85-95, divinyl rubber containing 87 to 95% of cis-1,4 units - 5-15, vulcanising group (sulfur - 0.5-1.0, 2-mercaptobenzothiazole - 0.5-1.0, N,N'-dithiodimorpholine - 1-2, molten w,w'-hexachloroparaxylene in wax coating - 1-2, stearic acid - 0.9-2.0, zinc oxide - 4-5), N-phenyl-N'-isopropyl-n-phenylenediamine - 1-2, polymerised 2,2,4-trimethyl-1,2-dihydrochinoline - 1-2, carbon black with specific geometrical surface of 33-36 m2/g - 30-50, kaoline - 20-40, chalk - 25-30, coumarone-indene resin - 2-3, zinc diethyldithiocarbamate - 0.9-1.1, oil paraffin wax - 2-3.

EFFECT: higher specific bulk resistance rate without changing achieved thermal fragility range.

3 tbl

Polymer composition // 2165440
The invention relates to polymeric compositions that can be used for the manufacture of rubber products such as o-rings to field pipelines

The invention relates to the rubber industry, in particular the production of reclaim and rubber mixtures based on it for the manufacture of soles

FIELD: chemistry.

SUBSTANCE: said invention relates to rubber-reinforced vinylarene polymers. Rubber-reinforced vinylarene (co)polymers are described. They have strictly bimodal morpholgy and consist of 55-90 wt % of rigid polymer matrix and 10-45 wt % of rubber-like phase dispersed in the said rigid polymer matrix in the form of grafted and occluded particles. The said rubber particles consist of 60-99 wt % of capsular, or "coat-core" type, particles and 1-40 wt % of "salami"-type particles, percent ratios being specified for rubber particles weight only. Difference between Hildebrand solubility parameter of elastomer, which forms rubber-like "capsular" particles and Hildebrand solubility parameter of elastomer, which forms "salami"-type particles, is 0.5 or over, mean diameter of "coat-core" type particles is 0.10 to 0.30 mcm, and mean diameter of "salami"-type particles is 1 to 5 mcm. Also, continuous process for production of bulk and suspended rubber-reinforced vinylarene (co)polymers is described.

EFFECT: production of rubber-reinforced vinylarene polymers, which contain particles of strictly bimodal distribution, with improved mechanical properties.

15 cl, 4 dwg, 1 tbl, 4 ex

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