Polymer composition

 

(57) Abstract:

The invention relates to compositions containing graft copolymers of polypropylene, polycarbonate, aliphatic polyester and, optionally, a rubber component and/or polypropylene. The composition includes, by weight.h.: about 27-94 grafted copolymer containing the skeleton of polypropylene material monomers, graft polymerization (a), about 5-63 at least one of polycarbonate (b) and about 1-15 of at least one aliphatic polyester (C), mol.wt., Mw5000-300000 and having recurring ester structural units of the General formula

or ,

where R1, R2, R3and R4each is selected from the group consisting of N, CH3linear or branched alkyl group; x and y = 1 to 20 and more; (a) + (b) + (C) = 100%. Material based on the composition according to the invention is excellently retains heat resistance, has a high stiffness, tensile strength at high temperature, high chemical resistance, good surface gloss. The composition is well processed from the melt and has better compatibility. 21 C.p. f-crystals, 14 PL.

The invention relates to compositions containing graft copolymers on the ilen, or both.

A mixture of polyolefins and polycarbonates, especially polycarbonate based on bisphenol-A, was studied recently because of the improved properties of the mixture compared with the properties of any of the individual polymers. The polyolefin gives excellent chemical resistance, better fluidity and low cost. Polycarbonate gives high hardness, high heat distortion temperature and high impact strength. For example, the United Kingdom patent N 982752 considers a mixture containing 80-99 wt.% polyethylene and 1-20 wt.% thermoplastic aromatic polycarbonate. U.S. patent N 4119607 describes a mixture of 40 parts by weight of alkenylamine-diene block copolymer, 5-48 parts of at least one heterogeneous industrial thermoplastic such as a polyolefin, a polycarbonate, or a nitrile barrier resin and a saturated thermoplastic polyester. Canadian patent N 705481 considering the mixture of 80-99,5 wt.% crystallizable polypropylene molecular weight of more than about 10,000 and 0.5-20% thermoplastic polyallylcarbosilane polymer. U.S. patent N 5034457 considers thermoplastic mixture of 1-99 wt.% aromatic polycarbonate, 0-99% amorphous thermoplastic, such as polycarbonate/polysiloxane actiono crystalline thermoplastic such as a polyolefin, 2 and 0-99% of at least one graft copolymer containing rubber and copolymerizing grafting monomer.

However, in General, the mixture of polymers is not a successful way to combine the desirable individual characteristics of two or more polymers in a single material. Polypropylene, for example, polycarbonate is incompatible materials, the phase of which is divided and stratified by mixing together.

The method needs to improve compatibility of polyolefin materials and polycarbonates, in order to take advantage of the improved properties provided by the mixing of two materials. It would be desirable to improve the impact strength of such polymer mixtures.

The composition of this invention contains, by mass

(a) about 30-94% graft copolymer having a main chain of the grafted polypropylene with her monomers, which form a grafted copolymer or ternary polymers, the monomers are selected from the group consisting of (i) styrene and Acrylonitrile, where the amount of Acrylonitrile is about 15-35% relative to the total weight of the monomers, and (ii) styrene and maleic anhydride or alpha-methylstyrene, styrene enovy anhydride is about 5-45% relative to the total weight of the monomers, and grafted copolymers or Ter-polymers formed from monomers (i) or (ii) are present in an amount of about 10-95 parts per 100 parts of polypropylene;

(b) about 5-40% of at least one aromatic polycarbonate; and

(C) about 1-15% of at least one aliphatic polyester having recurring ester structural units of the General formula

< / BR>
or

< / BR>
where R1, R2, R3and R4each is H, CH3or a linear or branched alkyl group, and

x and y are equal to each 1-20 or above; and (a) + (b) + (c) = 100%. The composition optionally also contains about 5-29% of one or more rubber components, about 1-50% polypropylene, or both.

The compositions of this invention have excellent heat preservation, high hardness and ultimate tensile strength at elevated temperatures, high chemical resistance, good gloss and appearance of the surface, the melt processability and high impact strength and improved compatibility.

The amount of grafted copolymer, component (a) in the composition of the present invention is approximately 30-94 wt.% in relation to the total number comp the measures of propylene and olefin, selected from the group consisting of ethylene and C4-10-olefins, provided that when the olefin is ethylene, the maximum content of polymerized ethylene is about 10%, preferably about 4% by weight, and when the olefin is a C4-10-olefin, the maximum content of polymerized olefin is about 20 wt.%, preferably about 16 wt. percent; and (iii) statistical terpolymer propylene and olefin selected from the group consisting of ethylene and C4-8-olefins, provided that the maximum content of polymerized C4-8-olefin comprises about 20 wt.%, preferably about 16 wt.%, and when one of the olefin is ethylene, the maximum content of polymerized ethylene is about 5 wt.%, preferably about 4 wt.%. The preferred material is polypropylene Foundation is a homopolymer of propylene.

The monomers grafted on polypropylene basis, are either (i) styrene and Acrylonitrile, or (ii) styrene and maleic anhydride / alpha methylsterol, styrene and maleic anhydride. In the process of graft polymerization of the monomers also copolymerized with the formation of a certain amount of free or nesma and make about 10-95 parts per 100 parts of polypropylene, preferably about 30 to 70 parts per 100 parts of polypropylene. The morphology of the grafted copolymer is such that the polypropylene is a continuous or matrix phase, and PSAN, P(MS/MA) or PSMA, both vaccinated and unvaccinated, are the dispersed phase.

In the case of PSN, Acrylonitrile is about 15-35% of total mass of the two monomers, preferably about 15-30%, and most preferably about 20-30%, In the case of PSMA or P(MS/MA), alpha methylsterol is about 0-45%, styrene is about 10-60%, and maleic anhydride is about 5-45% relative to the total weight of the monomers. When the monomer used alpha methylsterol, it is present in an amount of about 1-45% relative to the total weight of the monomers. Srednevekovaja molecular mass (Mw) free PSN, P(MS/MA) or PSMA is about 50000-900000. When using MwPSAN, P(MS/MA) or PSMA, this applies to Mwunvaccinated copolymer or terpolymer, excluding grafted monomers that cannot be accurately analyzed gel permeation chromatography. This does not apply to Mwmatrix.

Grafted copolymer, which forms the main component of this comp is Chertkov grafting on polypropylene or in the presence of grafted monomers, any subsequent processing of the monomers. Lots vaccinations can be obtained by treatment with a peroxide or other chemical compound, which is the initiator of free radical polymerization, or by irradiation with ionizing radiation is high-energy. Free radicals obtained in the polymer as a result of chemical processing or treatment of radiation form the active areas of grafting on the polymer and initiate polymerization of the monomers in these areas. Grafted copolymers obtained by peroxide-initiated grafting, are preferred.

In peroxide-initiated method, the polypropylene is processed at a temperature of about 60o-125oC, preferably about 80-120oC, about 0.1 to 6, preferably about 0.2 to 3.0 parts by weight per 100 parts by weight of polypropylene initiator having a half-life of about 1 to 240, preferably about 5-100 and more preferably about 10-40 minutes, when used temperature. Organic peroxides, especially those who initiate alkoxy radicals, constitute a preferred class of initiators. They include acyl-peroxides, such as benzoyl and Dibenzoyl-peroxide; dialkyl - and aralkyl-lane is emailcollector, 2,5-dimethyl-2,5-di-tert-butyl-peroxygens and bis(alpha-tert-butylperoxyisopropyl-benzene); paroxetine, such as tert-butyl peroxypivalate, tert-butylperbenzoate, 2.5-dimethylhexane-2,5-di(perbenzoate), tert-butyl-di(perftest), tert-butyl peroxy-2-ethylhexanoate and 1,1-dimethyl-3-hydroxybutyrate-2-ethylhexanoate; and peroxycarbonates, such as di(2-ethylhexyl)PEROXYDICARBONATE, di(n-propyl) PEROXYDICARBONATE and di(4-tert-butylcyclohexyl)-PEROXYDICARBONATE.

During the period of time that coincides with, or follows, the processing period of the initiator, with or without overlap, polypropylene is processed using about 10-50 wt. % grafted monomers relative to the total weight of the polypropylene and used grafted monomers with the speed of the connection, which does not exceed about 4.5, preferably about 3.0, and more preferably about 2.0 parts per 100 parts per minute at any level of the attachment of the monomer. If the monomers are added after the period of addition of the initiator, the periods of the addition of initiator and monomer parts, preferably not more than 2.5 half life of the initiator.

After a period of vaccination any amount of unreacted monomial is the remaining free radicals are deactivated, preferably by heating, typically at a temperature of not lower than 110oC, for at least 5 minutes, preferably not lower than 120oC for at least 20 minutes. During the whole process actually supported non-oxidizing environment.

The expression "virtually non-oxidizing" is used here to describe the environment or atmosphere in which irradiated polyolefin is held before deactivation of residual free radicals, means an environment in which the concentration of active oxygen, i.e., the concentration of oxygen in the form that reacts with free radicals in the irradiated material is less than about 15%, preferably less than about 5% and more preferably less than about 1% by volume. The most preferred concentration of active oxygen is of 0.004% or less by volume. Within these limits a non-oxidizing atmosphere may be any gas or mixture of gases, which is the oxidizing inert to free radicals in the polyolefin, for example nitrogen, argon, helium and carbon dioxide.

The way in which active areas vaccinations are obtained when the irradiation, the irradiated polypropylene at a temperature in the range of about 10o-85oC IO is Erno 10o-100oC, preferably about 10o-70oC and more preferably about 10o-50oC, for at least about 3 minutes, preferably not less than about 10 minutes, properities process using about 10-70 wt.% grafted monomers relative to the total weight of the polypropylene and used grafted monomers. Then, simultaneously or sequentially, in an optional order, almost all residual free radicals in the resulting grafted polypropylene deactivated, and any amount of unreacted monomers are removed from the material. Polypropylene is maintained in virtually non-oxidizing environment such as an inert gas during the entire process, at least as long until the deactivation of residual free radicals. Deactivation of free radicals preferably performed by heating, for example at temperatures not lower than 100oC, preferably not lower than 120oC, usually for at least 20 minutes.

The polycarbonate component (B) compositions of the present invention, is present in an amount of about 5-40 wt.%, preferably about 10-30%, and more preferably about 20-30%. May be suitable for use in the present invention, well known in the art and commercially available. These polycarbonates can be obtained by a number of traditional and well-known methods, which include transesterification, the polymerization in the melt and curing on the phase boundary. Polycarbonates are usually obtained by the interaction of diatomic phenol with a carbonate precursor such as phosgene. Methods suitable for the production of polycarbonates of the present invention are described, for example, in U.S. patent N 4123436 and 3153008. However, other suitable known methods for producing polycarbonates. Particularly preferred polycarbonates are aromatic polycarbonates obtained by the reaction of bisphenol-A[2,2-bis(4-hydroxyphenyl)propane with phosgene. The rate of flow of the melt polycarbonate is generally about 1-50 DG/min, measured at 300oC and 1.2 kg (ASTM D 1238).

One or more aliphatic polyester is used to improve the properties of the compositions of the present invention. These polyesters have a recurring ester structural units of the General formula:

< / BR>
or

< / BR>
where R1, R2, R3and R4each is H, CH3or a linear or branched alkyl-Gro.

The corresponding polyesters include, for example, polycaprolactone, polybutylene, poliatilenaksida, poly-(2,2-dimethyl-1,3-propylene) succinate, poly(neopentylglycol) and a block copolymer of polyurethane and polycaprolactone or polyacyladipate. Polycaprolacton is the preferred polyester. The amount of polyester present in the composition is about 1-15%, preferably about 2-7% by weight. If none of the optional components of the composition is not present, the number (a) + (b) + (c) = 100%.

Polyurethane block copolymer is a thermoplastic polyurethane elastomer obtained by the reaction of MDI with complex linear polyester or a simple polyester containing hydroxyl groups. Isocyanate part is usually called "hard segment" or crystallizable segment, and the polyol soft segment or elastomeric segment. The corresponding polyurethane block copolymers are commercially available under the trademarks Texin (Moba Chemical To. ), Aston (Beef Goodrich Co.), Rolar (Uniroyal Inc. and Pelletan (cleared To.). For example, a polyurethane block copolymer, obtained from polycaprolactone and diisocyanate, has a total hobsou formula:

< / BR>
where R is a linear or branched alkyl group or aromatic group, and

R1and R2- linear or branched alkyl group.

The composition of this invention may also, optionally, contain component (d) of the rubber component. The rubber component is selected from one or more of the groups consisting of (i) an olefin copolymer rubber, (ii) a block copolymer monoalkanolamines hydrocarbon-conjugated diene, and (iii) rubber type core-shell. Any of these rubber components may be acidic or anhydrite functionality or can be free from these functional groups. The preferred rubber component are copolymers monoalkanolamines hydrocarbon-conjugated diene. In the case of its use, the rubber component is about 5-20%, preferably about 5-15% by weight, and (a) + (b) + (C) + (d) = 100%.

Appropriate polyolefin rubbers include, for example, saturated polyolefin rubbers, such as double copolymers of ethylene with propylene and an unsaturated polyolefin rubbers such as ternary ethylene-propylene-diene copolymers. The preferred polyolefin rubber awlays about 75/25, preferably from about 40/60 to about 60/40, and a characteristic viscosity in the range of about 2,0-6,0, preferably about 2.5 to 4.0 DL/g One suitable polyolefin rubber is a statistical copolymer of ethylene with propylene EPM R supplied by the company Polisar.

The block copolymer monoalkanolamines hydrocarbon - conjugated diene may be a thermoplastic elastomer (A-B (or double) patterns, linear A-B-A (or triple) patterns, patterns of radial (A-B)n type, where n = 3-20%, or a combination of the structures of these types, in which a block unit polymer monoalkanolamines hydrocarbon, and each B block is a block of unsaturated rubber. Various kinds of copolymers of this type are commercially available. The types differ in structure, molecular weight, middle and end blocks, and the ratio monoalkanolamines hydrocarbon to the rubber. The block copolymer can also be gidrirovanny. Typical monomers monoalkanolamines hydrocarbons are styrene, linear or branched C1-4-alkyl-styrene with substituents in the ring and vinyltoluene. Styrene is preferred. The corresponding paired danami are butadiene and primerno 45000-260000 g/mol, and are preferred average molecular weight of about 50000-125000 g/mol to those that have a mixed composition, with the best balance of impact strength and stiffness. In addition, although can be used block copolymers having unsaturated as well as saturated rubber blocks, preferred are copolymers having saturated rubber blocks, also on the basis of the balance of impact strength/stiffness of the containing compositions. The mass ratio monoalkylamines hydrocarbon to a paired diene rubber in the block copolymer is in the range from about 5/95 to 50/50, preferably from about 10/90 to 40/60. One suitable block copolymer is Septon 2007, the company supplied Marubeni Specialty Chemical Inc. This block copolymer is gidrirovanny three-block copolymer having a flow rate of the melt 4-100 DG/min and containing 30% of styrene end blocks and 70% isoprene rubber mid-block.

The components of the rubber type core-shell contain small particles of crosslinked rubber phase, surrounded by a see-through shell, usually glassy polymer or copolymer. The core is usually the diene rubbers is, is selected from styrene, methyl methacrylate and Acrylonitrile. Particularly preferred rubbers type core-shell acrylate have a nucleus.

Another optional ingredient of the composition of this invention is the component (e) is a polypropylene material. If it is enable, it is used in an amount of about 1-50 wt.%. If you are using a polypropylene material, (a)+(b)+(C)+(d)+(e) = 100% or (a)+(b)+(C)+(e) = 100%. If present, this optional ingredient, the amount of grafted copolymer, component (a) may be reduced to about 30%. Unvaccinated polypropylene material may be the same material as the propylene homopolymer used as the basis of the grafted copolymer, or it may be different, i.e., it is selected from the group consisting of (i) homopolymer propylene; (ii) statistical copolymer of propylene and olefin selected from the group consisting of ethylene and C4-10-olefins, provided that when the olefin is ethylene, the maximum content of polymerized ethylene is about 10%, preferably about 4% by weight, and when the olefin is a C4-10-olefin, the maximum content of polymerized olefin is about 20%, preference is oasa from ethylene and C4-6-1-olefins, provided that the maximum content of polymerized C4-8-1-olefin is about 20%, preferably about 16% by weight, and when one of the olefin is ethylene, the maximum content of polymerized ethylene is about 5%, preferably about 4% by weight; or (iv) homopolymer or statistical copolymer of propylene, which has an improved impact strength modifying ethylene-propylene rubber or ethylene-propylene-butenova rubber either in the reactor or by physical mixing, and the modified polymer contains about 5-70% of ethylene-propylene rubber or ethylene-propylene-butenova rubber, as the ethylene content in rubber is in the range of about 7-70%, preferably about 10-60%.

C4-10-olefins include linear or branched C4-10-olefins, such as, for example, 1-butene, 1-penten, 3-methyl-1-butene, 4-methyl-1-penten, 1-hexene, 3,4-dimethyl-1-butene, 1-hepten and 3 methylhexan. The preferred polymeric material is a homopolymer of propylene, with a wide interval Mw.

Polypropylene-based graft copolymer and the polypropylene itself, when it is present, is the first PLAN, PSMA or P(MS/MA) grafted on polypropylene basis; free PSN, PSMA or P(MS/MA); an aromatic polycarbonate(s); an aliphatic polyester(s) and rubber component(s), homogeneous dispersed in the continuous phase.

In one preferred embodiment of the invention the composition comprises (by weight): (a) about 45-94% grafted copolymer containing polypropylene having cured him by grafting monomers containing styrene and Acrylonitrile (about 20-25% of Acrylonitrile in relation to the total weight of monomers), and polymerized monomers are present in an amount of about 50-95 parts per 100 parts; (b) about 5-40% of a polycarbonate based on bisphenol-A; (C) about 1-15% of polycaprolactone; (d) about 5-20% hydrogenated styrene block copolymer with an acid or anhydrous functionality and (a)+(b)+(C)+(d) = 100%. If there is approximately 5-40% of homopolymer propylene, the amount of grafted copolymer is about 30-65%, and the amount of polycarbonate is about 10-30%, and (a)+(b)+(C)+(d)+(e) = 100%.

In another preferred embodiment, the composition of this invention contains (by weight): (a) about 45-94% grafted copolymer containing polypropylene, having polymerize the% of maleic anhydride relative to the total weight of the monomers, and polymerized monomers are present in an amount of about 50-95 parts per 100 parts; (b) about 5-40% of a polycarbonate based on bisphenol-A; (c) about 1-15% of polycaprolactone; and (C) about 5-20% hydrogenated styrene block copolymer with an acid or anhydrous functionality, and (a)+(b)+(C)+(d) = 100%. If there is approximately 5-40% of homopolymer propylene, the amount of grafted copolymer is about 30-65%, and the amount of polycarbonate is about 10-30% (a)+(b)+(C)+(d)+(e) = 100%.

In the composition of the invention may include fillers and reinforcing agents such as carbon black and glass fibers, and inorganic powders such as calcium carbonate, talc, mica and glass. In addition to the economic benefit of such fillers give greater rigidity, and can be achieved over a high heat distortion temperature.

Compositions of the present invention are obtained by mechanical mixing of the components in conventional mixing equipment, such as single or twin screw extruder, a Bunbury mixer, or any other traditional hardware mixing in the melt. The order in which the components are mixed composition is not Cree the ar pressure and extrusion.

In all subsequent examples, all materials were mixed dry and mixed in a bag with Irganox V supplied by the company Ciba Geigy (mixture 1:1 Irgafos 168 and make up 1010), and calcium stearate as a stabilizer before extrusion. For example, mixing 1-3 were carried out on a twin-screw 25 mm Berstorff extruder at 300 rpm and 475oF (246,1oC) with a capacity of 25 lb/h (11,35 kg/h). In examples 4-14 mixing was performed on a 30 mm twin-screw Lectric extruder at 475oF (246,1oC), 275 rpm with a capacity of 30 lb/HR (13.6 kg/h). The mixed material was then granulated. The granulated material was dried until the morning when 150oF (65,6oC) and then processed by injection molding 5-Onaway (141,5 d) injection molding machine Battenfeld at 475oF (246,1oC) and a mold temperature of 160oF (71,1oC). The molding cycle consisted of 20 seconds injection time, 25 seconds cooling time and 2 seconds time disclosure forms with a maximum speed of injection of 0.5 inch (12.7 mm/s). In all examples of standard samples for testing for tensile strength, Flexural and impact strength Izod were cast at the same time.

Test methods for evaluation of cast samples were ASTM D-256 (drums nascosti when multiple strains), ASTM D-638 (elongation at yield strength), ASTM D-638 (tensile elongation), ASTM D-785 (hardness Rockwell).

In this description, unless otherwise indicated, all parts and percentages are given by weight.

In the following examples, given for purposes of illustration, describes different ways compositions of the invention.

Example 1.

This example describes the effect of changes in the quantity of polyester on the physical properties of the compositions, which contain grafted copolymer, polycarbonate and polyester. A comparison with the properties of compositions containing only grafted copolymer (comparative example 1), 70/30 grafted copolymer/polycarbonate (comparative example 2) and grafted copolymer plus polyester without polycarbonate (comparative example 3).

The grafted copolymer is a copolymer of styrene/Acrylonitrile grafted on the basis of homopolymer propylene, which in the table is denoted as PP-p-PSAN. In this and following examples of homopolymer propylene used as the basis, has the following properties: spherical shape, the flow velocity of the melt (P) 10 DG/min at 230oC and 2160 g, a porosity of 0.44 cm3/g, 96.5 percent insoluble in xylene at room timetemperature vaccinations 100oC using the previously described method of peroxide-initiated graft polymerization. Added 50 mass parts of the monomer per 100 parts of polypropylene. As the peroxide initiator is used 11-tert-butyl peroxypivalate (2.6 wt.h. 100 hours of active peroxide, 75% in white spirit). Styrene and Acrylonitrile are mixed in advance and served at a speed of 1.0 wt.h. 100 hours per minute for 50 minutes, and the peroxide is served separately with 0.07 wt.h. 100 hours per minute. Used the ratio of monomer: initiator (M:) = 40:1. The reaction conditions are maintained at 100oC for 30 minutes, then the temperature rises to 134oC for 120 minutes under nitrogen purging. The effectiveness of vaccination is equal to 36%.

Aromatic polycarbonate (PC), used in this and subsequent examples, is a polycarbonate based on bisphenol-A Caliber 302-22 supplied by the company Dow Chemical. The polycarbonate had a rate of flow of the melt 22 DG/min, measured at 300oC and 1.2 kg in accordance with the method of ASTM D 1238-82.

Aliphatic polyester used in this and subsequent examples, is polycaprolacton (PCL)P-767 supplied by the company Union carbide. Polyester has Mw

Example 2.

This example describes the effect on the properties of the compositions, which contain grafted copolymer, polycarbonate and polyester, various content of grafted copolymer and polycarbonate at a constant content of the polyester.

A comparison with the physical properties of the composition not containing polyester, by varying the content of the grafted copolymer and polycarbonate (comparative examples 4 and 5).

Grafted copolymer PP-p-PSAN, polycarbonate and polyester are the same as described in example 1.

The amount of each component of the composition and results of physical tests are given in table 2.

Example 3.

This example describes the effect on the physical properties of the composition, which contains a grafted copolymer, polycarbonate and polyester, the variation of the content of PSAN (mass parts per 100 parts) graft copolymer, while the number of grafted copolymer, polycarbonate, polyester and the ratio of styrene/Acrylonitrile (wt.%) remain the same.

Grafted copolymer PP-p-PSAN obtained in the same way as described in example 1, except that the styrene and Acrylonitrile are served at a speed of 1.0 La and the ratio (wt.%) styrene/Acrylonitrile for each sample are given in table 3. Polycarbonate and polyester are the same as described in example 1.

The amount of each component and the results of physical tests are given in table 3.

Example 4.

This example describes the effect of adding 10 wt.% rubber on the physical properties of the composition containing the graft copolymer, polycarbonate and polyester. A comparison with the properties of the compositions, when there is no polycarbonate (comparative example 6), when there is no polyester (comparative example 7) and when there are only grafted copolymer and polycarbonate (comparative example 8).

Grafted copolymer PP-p-PSAN, polycarbonate and polyester are the same as described in example 1. Three-block copolymer of S-EB-S-p-MA is rubber, functionalized with succinic acid anhydride, styrene/ethylene-butadiene/styrene supplied by the company shell. The copolymer contained 29 wt. % styrene, 71 wt.% ethylene-butadiene rubber mid-block and about 2 wt.% succinic anhydride. When functionalization of the rubber maleic anhydride reacts through the double bond, forming a group of succinic acid anhydride.

The amount of each component of the components of the ore describes the impact of adding 10 wt.% different rubbers on the physical properties of the compositions, containing grafted copolymer, polycarbonate and polyester.

Grafted copolymer PP-p-PSAN, polycarbonate and polyester are the same as described in example 1. Copolymer C-EB-C-p-MA is the same rubber used in example 4.

In the three-block copolymer, hydrogenated styrene/ethylene-propylene-styrene (S-EP-S) supplied by the company Marubeni Rush-Alti Chemicals Inc., contains about 30% styrene end blocks and about 70% of isoprene kauchukopodobnoe the middle of the block.

In the three-block copolymer of styrene/ethylene-butylene/styrene (S-EB-S) supplied by the company shell, contained 29 wt.% styrene and 71 wt.% hydrogenated butadiene kauchukopodobnoe the middle of the block.

The amount of each component of the composition and results of physical tests are given in table 5.

Example 6.

This example describes the effect of varying the quantities of the added rubber on the properties of compositions containing grafted copolymer, polycarbonate, polyester and hydrogenated three-block copolymer rubber.

Grafted copolymer PP-p-PSAN, polycarbonate and polyester are the same as described in example 1. Gidir the>

The amount of each component of the composition and results of physical tests are given in table 6.

Example 7.

This example describes the effect on the properties of compositions containing grafted copolymer, polycarbonate and polyester, the variation amount of the polyester. A comparison with the properties of compositions that do not contain polycarbonate and polyester (comparative example 9), does not contain the polyester (comparative example 10), does not contain polycarbonate and contains 2.5% polyester (comparative example 11), does not contain polycarbonate and contains 5% polyester (comparative example 12).

The grafted copolymer is a copolymer of alpha-methylstyrene, styrene and maleic anhydride grafted on polypropylene basis, PP-p-P(MS/MA). Polypropylene homopolymer used as the polymer base, is the same as in example 1. Alpha methylstyrene copolymer (alpha methylsterol: styrene:maleic anhydride = 44:19,4:36,6 by weight or 40:20:40 moles) grafted on polypropylene basis at a temperature of vaccinations 90oC using a previously described method perekonvertirovaniya graft polymerization. 50 wt.h. alpha-tert-butyl peroxypivalate (1.08 wt.h. 100 hours of active peroxide, 75% in white spirit).

Alpha methylsterol and styrene pre-mixed and fed at 1.0 wt. hours 100 hours per minute for 50 minutes. Molten maleic anhydride is served separately with 1 wt.h. 100 hours per minute, and the peroxide is served separately with 0.02 wt.h. 100 hours per minute. Used the ratio of monomer: initiator = 100:1. The reaction conditions are maintained at the 90oC for 30 minutes, then the temperature is increased to 140oC for 15 minutes and then increased to 140oC while purging with nitrogen for a period of 180 minutes.

The amount of each component of the composition and results of physical tests are given in table 7.

Example 8.

This example describes the effect of adding 10 wt.% rubber on the physical properties of compositions containing grafted copolymer, polycarbonate and polyester. A comparison with the properties of compositions that do not contain polycarbonate and polyester (comparative example 13), does not contain the polyester (comparative example 14), contains 5% polyester and is not contained rubber (comparative example 15) and contains only one grafted copolymer without any additives (comparative primerless same as described in example 1. The rubber is the same as the rubber described in example 4. The amount of each component and the results of physical tests are given in table 8.

Example 9.

This example describes the effect of the addition of 2.5 wt.% various aliphatic polyesters on the physical properties of compositions containing grafted copolymer and polycarbonate.

Grafted copolymer PP-p-PSAN, polycaprolactone and polycarbonate are the same as described in example 1, except that the porosity of homopolymer propylene used as the basis of the grafted copolymer is equal to 0.44 cm3/, Poly(1,4-bucilandia) supplied by the company Aldrich with Mwabout 12000. Poliatilenaksida supplied by the company Aldrich. Polyurethane block copolymer with a soft polycaprolactone segment comes under the brand Pelletan 2102-80A company of Dow Chemical To. Polyurethane block copolymer with a soft polyadipates segment comes under the brand Pelletan 2355-75A company of Dow Chemical To.

The amount of each component of the composition and results of physical tests are given in table 9.

Example 10.

In this premieropinion, polycarbonate and various polyesters.

Grafted copolymer PP-p-PSAN, polycarbonate and polyesters are the same as described in example 9. The rubber component is the same as the rubber described in example 4.

The amount of each component of the composition and results of physical tests are given in table 10.

Example 11.

This example describes the effect of adding homopolymer propylene on the physical properties of compositions containing grafted copolymer, polycarbonate, polyester and rubber.

Grafted copolymer PP-p-PSAN, polycarbonate and polycaprolacton are the same as described in example 9. The rubber is the same as the rubber described in example 5. Used unvaccinated Homo-polymer polypropylene with a wide molecular weight distribution, spherical shape, MFR of 1.1 DG/min, and 97.8% insoluble in xylene at room temperature, Mw/Mn= 8,2.

The amount of each component of the composition and results of physical tests are given in table 11.

Example 12.

This example describes the effect of the addition of 2.5 wt.% various polyesters on the physical properties of the compositions, in Kotak described in example 7, except that the porosity of homopolymer propylene used as the polymer base of the grafted copolymer is equal to 0.44 cm3/, Abbreviation P(MS/MA) is used to denote terpolymer alpha methylsterol/styrene/maleic anhydride which are taught on the basis of homopolymer propylene. Polycarbonate and polyesters are the same as described in example 9.

The amount of each component of the composition and results of physical tests are given in table 12.

Example 13.

This example describes the effect of adding various polyesters on the physical properties of the composition containing the graft copolymer, polycarbonate and rubber.

Grafted copolymer PP-p-P(MS/MA) is obtained as described in example 12. Polycarbonate and polyesters are the same as described in example 9. The rubber is the same as the rubber described in example 4.

The amount of each component of the composition and results of physical tests are given in table 13.

Example 14.

This example describes the impact of the introduction of different amounts of unvaccinated polypropylene material on the physical t the PP-p-P(MS/MA) is obtained, as described in example 12. Polycarbonate and polyester are the same as described in example 9. The rubber is the same as the rubber described in example 4. A homopolymer of propylene is the same as described in example 11.

The amount of each component of the composition and results of physical tests are given in table 14.

1 .A composition comprising by weight: (a) about 27-94% grafted copolymer containing the skeleton of polypropylene material, monomers, graft polymerization, which form a grafted copolymers or terpolymers, and the monomers are selected from the group consisting of (i) styrene and Acrylonitrile, where the amount of Acrylonitrile is about 15-35% relative to the total weight of the monomers, and (ii) styrene and maleic anhydride or alpha-methylstyrene, styrene and maleic anhydride, where alpha methylsterol is about 0-45%, styrene is about 10-60%, and maleic anhydride is about 5-45% relative to the total weight of the monomers, and graft copolymers or terpolymer formed from (i) or (ii) are present in an amount of about 10-95 wt.h. 100 h polypropylene material; (C) about 5-63% of at least one aromatic policar is iesa ester structural units of the General formula

< / BR>
or

< / BR>
where R1, R2, R3and R4each are selected from the group consisting of N, CH3or a linear or branched altergroup;

x and y, each, equals 1-20 or more;

(a) + (b) + (C) = 100 %.

2. The composition according to p. 1, characterized in that the polypropylene material of the component (a) is selected from the group consisting of (i) homopolymer propylene, (ii) statistical copolymer of propylene and olefin selected from the group consisting of ethylene and C4-10-olefins, provided that when the olefin is ethylene, the maximum content of polymerized ethylene is about 10 wt.%, and when the olefin is a C4-10-olefin, the maximum content of polymerized olefin is about 20 wt.%, and (iii) statistical terpolymer propylene and olefin selected from the group consisting of ethylene and C4-8-1-olefins, provided that the maximum content of polymerized C4-8-1-olefin comprises about 20 wt.%, and when one of the olefin is ethylene, the maximum content of polymerized ethylene is about 5 wt.%.

3. The composition according to p. 2, wherein the polypropylene material is beat on the basis of diatomic phenol.

5. The composition according to p. 4, characterized in that the polycarbonate-based diatomic phenol is a polycarbonate based on bisphenol-A.

6. The composition according to p. 1, characterized in that the polycarbonate is present in an amount of about 10-30 wt.%.

7. The composition according to p. 6, characterized in that the polycarbonate is present in an amount of about 20-30 wt.%.

8. The composition according to p. 1, wherein the aliphatic polyester is selected from the group consisting of polycaprolactone, polybutylenepipe, poliatilenaksidna, poly(2,2-dimethyl-1,3-propylene)succinate, poly(neopentylglycol), a block copolymer of polyurethane and polycaprolactone, and a block copolymer of polyurethane and polyacyladipate.

9. The composition according to p. 8, characterized in that the aliphatic polyester is polycaprolactone.

10. The composition according to p. 1, wherein the aliphatic polyester is present in an amount of about 2-7 wt.%.

11. The composition according to p. 1, characterized in that it further contains the component (d) about 5-20 wt.% one or more rubber components selected from the group consisting of (i) rubbers, copolymers of olefins, (ii) block copolymers monoalkanolamines angle 11, wherein the rubber component is a block copolymer monoalkanolamines hydrocarbon-conjugated diene.

13. The composition according to p. 12, wherein the rubber component is a hydrogenated styrene-isoprene block copolymer.

14. The composition according to p. 11, wherein the rubber component is present in an amount of about 5-15 wt.%.

15. The composition according to p. 1, characterized in that it further contains the component (e) is about 1-50 wt.% polypropylene material, and (a) + (b) + (C) + (e) = 100%.

16. The composition according to p. 11, characterized in that it further contains the component (e) is about 1-50 wt.% polypropylene material and (a) + (b) + (C) + (d) + (e) = 100 %.

17. The composition according to p. 15, wherein the polypropylene material is selected from the group consisting of (i) homopolymer propylene, (ii) statistical copolymer of propylene and olefin selected from the group consisting of ethylene and C4-10-olefins, provided that when the olefin is ethylene, the maximum content of polymerized ethylene is approximately 10 wt. %, and when the olefin is a C4-10-olefin, the maximum content of polymerized olefin Costas ethylene and C4-8-1-olefins, provided that the maximum content of polymerized C4-8-1-olefin comprises about 20 wt.%, and when one of the olefin is ethylene, the maximum content of polymerized ethylene is about 5 wt.%, and (iv) homopolymer or statistical copolymer of propylene, which has improved toughness by modifying ethylene-propylene rubber or ethylene-propylene-butenova rubber either in the reactor or by physical mixing, and the content of the ethylene-propylene rubber or ethylene-propylene-butenova rubber modified polymer is in the range of about 5-70%, and the ethylene content in rubber is in the range of about 7-70 wt.%.

18. The composition according to p. 17, wherein the polypropylene material is a homopolymer of propylene.

19. The composition according to p. 1, characterized in that the mass contains (a) about 30-65% of the grafted copolymer containing polipropilenovyy material having cured him grafted polymerization of monomers containing approximately 75-80% of styrene and about 20-25% of Acrylonitrile relative to the total weight of the monomers and polymerized monomers are present in amounts which Acton and (d) about 5-20% hydrogenated styrene block copolymer with an acid or anhydrous functionality where (a) +(b)+(C)+(d) = 100%.

20. The composition according to p. 19, characterized in that it further contains the component (e) is approximately 5-40% of homopolymer propylene, in which the graft copolymer (a) is present in an amount of about 30-65%, and polycarbonate (b) is present in an amount of about 10-30%, and (a) + (b) + (C) + (d) + (e) - 100%.

21. The composition according to p. 11, characterized in that it contains by weight: (a) about 30-65% of the grafted copolymer containing polypropylene material having a polymerized at him grafted polymerization of monomers containing about 40% of alfamethylstyrene, about 20% styrene and about 40% of maleic anhydride relative to the total weight of the monomers and polymerized monomers are present in an amount of about 50-95 wt.h. at 100 hours , (b) about 5-40% of a polycarbonate based on bisphenol-A, (C) about 1-15% of polycaprolactone, (d) about 5-20% hydrogenated styrene block copolymer with an acid or anhydrous functionality, where (a) + (b) + (C) + (d) = 100%.

22. The composition according to p. 21, characterized in that it further contains the component (e) is approximately 5-40% of homopolymer propylene, in which the graft copolymer (a) is present in an amount of about 30-65%, and polycarbonate (b) is present in the

 

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