Partially crosslinked elastomeric polyolefin mixture

 

The invention relates to ionomer polymer mixture, in particular the partially crosslinked thermoplastic and elastomeric polyolefin blends having a low hardness. The mixture comprises From2-C10-olefinic polymers by grafting of monomers containing at least one carboxyl group or its derivative, and ions of metals of group I or II of the Periodic system. With2-C10-olefinic polymers are polyolefin mixture comprising 100 wt.h. heterophase polyolefin composition comprising crystalline polypropylene, and an elastomeric fraction of ethylene-propylene copolymer, or ethylene--olefinic copolymer with ethylene content of less than 40 wt. %, and 0-250 wt.h. the elastomeric polymer. The mixture can optionally contain reinforcing fillers, pigments, dyes, antioxidants, stabilizers, foaming agents, etc. resulting mixture is characterized by low stiffness, satisfactory properties at medium and high temperatures, improved elastomeric and tactile indicators. 2 S. and 3 C.p. f-crystals, 9 PL.

The invention relates to ionomer polymer mixtures. In particular, it OI to the way they are received.

Ionomer resin composition containing a polypropylene grafted with acrylic acid are already known. For example, international application WO 92/01747 describes products made from thermoplastic composition comprising a copolymer of ethylene and methacrylic acid and its ionomers, ethylene-propylene rubber, crystalline polypropylene, polypropylene grafted with acrylic acid and epoxy or proximally. The specified thermoplastic composition has a high susceptibility to the car paint.

The mixture of this invention are appropriate for use in areas of plasticized PVC and vulcanized elastomers.

In particular thanks to its tactile properties of the compounds are especially useful for obtaining artificial leather. Indeed, the mixture of the present invention is not only characterized by their low stiffness, but make the skin feels smoother and more glossy than the skin, derived from olefin polymers so far.

Due to the above tactile characteristics, in particular soft, smooth and glossy texture in addition to satisfactory properties at medium and high rate shall eat of these compositions is their use in the field of soles for shoes due to their good wear resistance.

Some partially crosslinked polyolefin composition soft type described in the application for the European patent EP-A-633289. However, these compositions are obtained by crosslinking peroxide and cross-linking saagento.

One problem presented by these known compositions is that their surface is somewhat sticky, and the stickiness found with time. Compared with these compositions aesthetic appearance of the product obtained from mixtures of the present invention is significantly improved.

Also known unstitched form some compounds of the present invention, as described in the application for the European patent 97200530.0.

The compounds also show a minimal degree of stickiness (soft touch), the weak tendency of the components of the mixture to the separation and good, but low elastomeric properties.

Now it has been found that the undesirable phenomenon of stickiness decrease in the elastomeric polyolefin mixtures, which are partially crosslinked with metal ions.

In addition, mixtures of the present invention have satisfactory properties at high temperatures, in particular, they have good elastic recovery, as shown low the th of the invention, which correspond unstitched mixtures described in the above application for the European patent 97200530.0 shows not only the disappearance or reduction of the above problems, but also have improved elastomeric properties.

From mixtures of this invention it is possible to obtain products that are as soft as the products obtained from the composition of the above patent applications, and sometimes even softer. These products have a hardness shore a of about 60-90 points. In spite of the increased softness, the compositions of the present invention show greater resistance to abrasion than the songs mentioned patent application.

The problem of separation of the mixture is also solved, since the mixture of the present invention are vysokopatogennyj and stable in time.

Therefore, the aim of the present invention is an ionomer polymer mixture containing2-C10-olefinic polymers with grafted with monomers containing at least one functional group such as carboxylic acids, and metal ions. Specified polyolefin ionomer mixture contains (in mass percent): I. 100 wt.h. heterophase polyolefin composition comprising: A. 5-50%, predpochitayut 85 to 90%, or a crystalline copolymer of propylene, ethylene and/or-olefin CH2= chr, where R represents a C2-C8-alkyl radical, or mixtures thereof; moreover, these copolymers contain more than 85% of propylene and are an indicator of stereoregularity more than 80%.

Century 0-20%, preferably 0-15%, the crystalline fraction of a copolymer of ethylene and propylene or a copolymer of ethylene and-olefin CH2=chr, where R represents a C2-C8-alkyl radical, or a copolymer of ethylene, propylene and the specified-olefin; and this fraction is insoluble in xylene at ambient temperature; and C. 40-95%, preferably 50-75% of an elastomeric fraction of a copolymer of ethylene and propylene or a copolymer of ethylene and-olefin CH2=chr, where R represents a C2-C8-alkyl radical, or a copolymer of ethylene, propylene and the specified-olefin, and optionally minor quantities of a diene; and the specified fraction of the copolymer contains less than 40% ethylene, preferably from 20 to 38%, and is soluble in xylene at ambient temperature; and II. 0-250 wt.h., predpochtitel3-C10-olefin and optionally a diene, containing at least 20% of the specified-olefin; b. copolymers of ethylene with methyl acrylate containing from 15 to 30% of recurring units of methyl acrylate or vinylacetate and having JIREH in the range from 1 to 10 g/10 min (ASTM D-1238); S. of polyisobutylene having a molecular weight in the range of from 100,000 to approximately 300,000, measured as the average viscosity; d. atactic of homopolymers of propylene and amorphous copolymers of ethylene with C3-C6the olefins obtained by using a catalyst obtained by contacting (I) a component containing a transition metal M and at least one communication M-and the ligand, and (2) socializaton; and E. block copolymers of styrene containing at least one comonomer selected from butadiene and isoprene.

Among the above-mentioned polyolefin mixtures, the preferred mixtures are mixtures that have a hardness shore a 60-80 points. These hardness values can be easily obtained with the introduction of hydrocarbon oils for filling in the mixture of the present invention. Otherwise, the specified hardness values ablauts ukazannye elastomeric olefin polymers (II). It is therefore particularly preferred compounds of the present invention are mixtures containing, in wt.%:
1. 30-80%, preferably 40-75% above heterophase composition (I); and
2. 20-70%, preferably 20-65%, more preferably 25-60%, above the elastomeric polymer (II).

Examples of heterogeneous polyolefin compositions (I) are given in the published application for the European patent EP-A-0472946 (Himont Inc.).

As an example, the total number of ethylene in heterogeneous phase compositions (I) is in the range from 15 to 35 wt.%. In addition, the characteristic viscosity of the fraction (C) is usually in the range from 1.5 to 4 DL/g

Preferably, the content of propylene in the copolymer fraction (A) is in the range from 90 to 99 wt.% The rate of stereoregularity is defined as the fraction insoluble in xylene at ambient temperature (see note 1 below). For the purposes of this document under the specified temperature is meant a temperature of about 25oC.

Preferably, the content of ethylene in fraction (b) is at least 75 wt.%, more preferably at least 80 wt.% with respect to the total mass fraction (In). Preferably the copolymer is essentially �"https://img.russianpatents.com/chr/945.gif">-olefins CH2=chr, where R represents a C2-C8-alkyl radical, linear or branched, which may be present in the heterogeneous phase compositions (I) are 1-butene, 1-penten, 4-methyl-1-penten, 1-hexene and 1-octene.

If in the faction (S) of the composition (I) of the diene its content is from 1 to 10 wt.%, preferably 2.5 to 7% relative to the total mass fraction (C). Examples of the dienes are butadiene, 1,4-hexadiene, 1,5-hexadiene and 5-ethylidene-2-norbornene.

The above heterogeneous composition (I) can be obtained by mixing fractions (A), (b) and (C) in flowable condition, i.e. at temperatures above their softening temperature and melting, or by sequential polymerization in two or more stages in the presence of vysokotehnicheskoe catalyst of Ziegler-Natta. In particular, the used catalyst system comprises (i) a solid catalyst component containing a titanium compound and an electron-donor compound supported on magnesium chloride as a carrier, and (ii) Al-trialkyl compound and the electron-donating compound.

Examples of these catalysts are described in European patent EP 45977 and in U.S. patent 4339054, 4472524 and 4473660.

Electrondonor, compounds containing atoms of N, P and/or S, and esters of mono - or dicarboxylic acids.

Particularly suitable are the esters of phthalic acid, such as Diisobutyl, dioctyl-, diphenyl-phthalate and benzylbutylphthalate.

In addition, particularly suitable electron-donor compounds are 1,3-diepiriye compounds having the formula

in which RIand RIIthe same or different from each other, represent1-C8-alkyl, C3-C10-cycloalkyl or6-C10aryl radicals; RIIIor RIVthe same or different from each other, represent1-C4-alkyl radicals or 1,3-diesters in which the carbon atom in position 2 belongs to a cyclic or polycyclic ring containing 5, 6 or 7 atoms, and two or three of unsaturation.

Esters having the above structure is described in published applications to the European patent EP-A-361493 and 728769. Typical examples of the above compounds are: 2-methyl-2-isopropyl-1,3-dimethoxypropane, 2,2-Diisobutyl-1,3-dimethoxypropane, 2-isopropyl-2-cyclopentyl-1,3-dimethoxypropane, 2-isopropyl-2-isoamyl-1,3-dimethoxypropane and 9,9-bis-(methoxymethyl the calendar of patent EP-A-0472946. When heterogeneous composition (I) obtained by sequential polymerization, fraction (B) is present in quantities greater than or equal to 1 wt.%. When specified fraction (B) is present, it is preferable that the mass ratio (B)/(C) was less than 0.4, in particular from 0.1 to 0.3. Also preferably, the mass percentage of the fraction (s) or sum of fractions (b) and (C) ranged from 50 to 90%, preferably from 65 to 80% compared to the heterogeneous composition (I). The above way of sequential polymerization to obtain a heterogeneous composition (I) comprises at least the stages of: propylene alone or with the abovethe olefins will polimerizuet in the first stage with the formation of fractions (A) and the later stages of the polymerization of ethylene and propylene and/or another-olefin and, optionally, a diene carried out with the formation of fractions (b) and (C). Polymerization takes place in the liquid, gaseous or liquid phase. The reaction temperature at different stages of polymerization may be the same or different and is usually in the range of from 40 to 90oC, preferably from 50 to 80oWith, upon receipt of a fraction (a) and from 40 to 60oWith the Ohm (copolymers (a)) is especially suitable are copolymers, containing preferably from 20 to 70% (X-analysis} of the specified-olefin and having a ratio Mw/Mn lower than 4, preferably lower than 3. Preferred examples include copolymers of ethylene with 1-octene. Even more preferred are copolymers having a mass content of 1-octene in the range from 20 to 45% (according to13C-NMR analysis). Preferably, these polymers have a density of less 0,89 g/cm3.

A separate example of the copolymer (a) is a copolymer containing 72 wt. % ethylene and 28 wt.% 1-octene (according to X-analysis conducted by Dow Chemical company) having a hardness shore a 66 points and density 0,863 g/cm3.

Another particular example is a copolymer containing 75 wt.% ethylene and 25 wt.% 1-octene (according to X-analysis conducted by Dow Chemical company) having a hardness shore a 75 points and density 0,868 g/cm3.

Another particular example is a copolymer containing 76 wt.% ethylene and 24 wt.% 1-octene (according to X-analysis conducted by Dow Chemical company) having a hardness shore a 75 points and a density of 0.87 g/cm3.

Preferred examples of the copolymers (a) are copolymers of ethylene and propylene and ethylene and 1-butene. The content of atarget Dien, the specified diene is unpaired. Examples of non-conjugate dienes and their preferred amounts are the same as listed above for the faction (S) of the composition (I).

Preferred examples of the copolymers (b) are copolymers containing from 20 to 25 wt.% methylacrylate links and having JIREH in the range from 1.5 to 6 g/10 min.

The preferred polyisobutylene are polyisobutylene having a molecular weight in the range from 110,000 to 250000, defined by viscosity; some examples are polyisobutylene MML 100 company Exxon. A separate example is polyisobutylene having a molecular weight of 125000.

Elastomeric polymers (II) (d) are or (d') atactic homopolymer propylene, or copolymers of from 0.5-10 wt.% ethylene and/or C4-C10--olefins, or (d) amorphous copolymers of ethylene with C3-C10--olefins. The latter include, for example, the number of co monomer constituting from 10 to 70 wt.%, preferably from 15 to 60 wt.%. Among the above With4-C10-comonomers, linear or branched, preferred olefins are the same as have already been specified for the above heterophase 232D/chr/951.gif">] more than 1 DL/g, preferably between 1 and 15 DL/g, more preferably between 1 and 3 DL/g;
- %(r) - % (m)>0, where% r is the percentage syndiotactic dyads, and % (m) - percentage of isotactic dyads;
- less than 2% of CH2groups contained in (CH2)nsequences, where n2; and
index Bernoulli ()=10,2.

Copolymers (d) have the following characteristics:
the amount of propylene in the copolymer (% P), expressed in molar percent, and the ratio of ORE/(ORE+re+PPP) triad satisfies the following equation:
0.01%R+ORE/(ORE+re*PPP)1;
- less than 2% of CH2groups contained in (CH2)nsequences, where n is an even number.

The above index Bernoulli is defined as follows:
In=4[mm][rr]/[mr]2
where [mm] , [rr] and [mr] represent, respectively, the percentage of isotactic triads, syndiotactic triads and geterotsiklicheskikh triads in the polymer, defined,13C-NMR analysis. The specified index has values close to 1, in particular in the range from 0.8 to 1.2, preferably from 0.9 to 1.1.

As indicated above, the polymers (d) are obtained with homogeneous olicom, and alkylalkoxy as socializaton. These polymers are described, for example, in the application for the European patent EP-A-604917 and EP-A-632066, published on behalf of the Spherilene.

Methods of obtaining ionomer polymer mixtures of the present invention are known.

As indicated previously, the polymer mixtures of this invention are functionalized. As an example, their functionalization is carried out by grafting on to polymers of unsaturated monomers containing carboxyl groups, or derivatives thereof, such as esters and anhydrides. These monomers may contain one or more, for example two carboxyl groups or their derivatives. Examples of these monomers are vinyltoluene acid, and preferred are acrylic and methacrylic acid. Other examples are etakrinova, taconova and Tarakanova, maleic and fumaric acid and the corresponding anhydrides and esters.

In the mixture of the present invention the above-mentioned monomers with polar groups are present in amounts ranging from 0.1 to 25 wt.%, preferably, from 0.6 to 10 wt.% in relation to the weight of the polymer mass. These polar groups are neutralized from 1 to II to the group I or II of the Periodic table of elements. Examples of these metals are sodium, lithium, potassium, zinc, magnesium and calcium; the last three of these are the preferred metals.

The number of metal ions varies in the above interval and depends on the desired degree of crosslinking, and the number of functional groups grafted on the polymer.

The mixture of this invention is partially crosslinked. The definition of "partially crosslinked" refers to the degree of crosslinking, i.e., means that the content of the gel in relation to the weight of an elastomeric fraction soluble in xylene at ambient temperature before curing is preferably less than 70%, more preferably less than 50%. The gel corresponds mainly faction elastomeric copolymer, which becomes insoluble due to crosslinking. The specified gel may also contain a small fraction of homopolymer propylene and copolymer, which is insoluble because it is also stitched.

In addition to the above components, the mixture of the present invention may contain other ingredients that are usually put in thermoplastic polymers and elastomers. These additives are, for example, reinforcing fillers (takamisakari, antistatics, plasticizers and lubricants such as hydrocarbon oils for filling.

The mixture of the present invention can be obtained using various methods. For example, heterogeneous composition (I), of elastomeric polymers (II) in the case of adding the monomers with polar groups and optional additives are mixed in the same time in conditions that cause vaccine monomers with polar groups to the polymer. Thus obtained mixture is mixed with metal, which add, for example, in the form of oxide, hydroxide or salt, carbonate, or mixtures of the above compounds. The above reaction vaccinations carried out using known methods. One way, for example, consists of grafting the above-mentioned polar monomers to polymers in the presence of radical initiators. When appropriate amounts of the above functional groups, which are added to the modified polymer, get polymer which is modified with polar monomers and has the previously described structure. This modification takes place by using the appropriate amount of initiator of free radicals and is preferably in inert trazione equipment, described below to obtain a mixture of the present invention.

An alternative method of obtaining graft polymer consists of first obtaining concentrate containing polymer matrix monomers with polar groups and initiators of free radicals. Then the specified concentrate is mixed with a heterogeneous composition (I), of elastomeric polymers (II) in the case of adding them, and other additives that are not necessarily used when working in conditions that cause the reaction vaccinations.

The above polymer matrix concentrate may be, for example, the same composition of the elastomeric polymer (II) or heterogeneous composition (I), the latter is preferred. Alternatively, you can use polymer other than the above components (I) and (II), but is compatible with them, such as, for example, the fraction of heterogeneous phase composition (I).

The above mixing processes carried out in the device, usually used for this purpose. For example, the mixing can be performed using a closed mixer (e.g. Bunbury), or single-screw extruders (e.g. bass), or twin-screw extruder with mixing elements.

Temperaturewise to obtain products manufactured by various known methods, such as compression and injection molding, extrusion, thermoforming, calendering and foaming.

Therefore, an additional purpose of the present invention are foamed mixture obtained from the above partially cross-linked mixtures, and foamed products obtained from them.

The above-mentioned foamed mixture is soft and flexible. These features allow to use the foam mixture in many applications, for example in the automotive industry or other industries such as the manufacture of wheels for prams, material patterns, etc.

The density of the foamed blends of this invention preferably is in the range from 0.2 to 0.5 g/cm3. In order to obtain foamed mixture and foamed products of the present invention, it is possible to use the methods and foaming agents, which are widely known in the technique.

Foaming agents that may be used are the agents, both chemical and physical types. In the first case, their decomposition temperature is in the range of 100oWith up to approximately 220oC.

Chemical foaming agents,capabilities. Examples of these foaming agents are: azodicarbonamide, sulfonylhydrazide, dinitrophenylhydrazine, para-toluensulfonate, trihydrate-triazine, azodicarboxylate barium, borohydride sodium, phenylsulfonyl, gypsum and trihydrate aluminum oxide, sodium bicarbonate or mixtures thereof with citric acid and, generally speaking, all the products used in the technique for this purpose, the decomposition temperature which is at least equal to the softening temperature of cross-linked polymer.

You can use all known physical foaming agents such as, for example, light aliphatic hydrocarbons, optionally fluorinated and chlorinated having a boiling point above 25oWith, such as pentane, hexane, dichlorotrifluoroethane, methylene chloride; or a gaseous or liquid compounds having a boiling point below the 25oWith, such as air, nitrogen, carbon dioxide, chloroformate, DICHLORODIFLUOROMETHANE, propane, butane and isobutane.

In the methods of obtaining the foamed mixtures can be used extruders commonly used in the art, such as single-screw and twin-screw extruders, above.

Physical foaming agents are preferably vpryskivat or give u is OLIMAR is melted and homogeneous.

Chemical foaming agents can be mechanically mixed with the solid polymer before phase extrusion. Thus obtained dry mixture is then injected into the first power zone of the extruder where the temperature is in the range from 130 to 200oC. At the outlet of the extruder, equipped with the appropriate head, for example slotted cylinder or a cylinder with circular holes, keep the temperature which is most suitable for the foaming of the polymer. This temperature is preferably in the range from 125 to 200oC.

Foamed mixture can be obtained in the process of obtaining crosslinked mixture, for example when the flow in co-rotating twin screw extruder a mixture containing the polymer (II), heterogeneous composition (I), peroxide and monomer with a polar group. At a given distance from the point of supply of the extruder, for example, at a distance of 2/3 of the length of the extruder, introducing molten mixture of both metal and foaming agent with the continuity of the mixture along the extruder, thus causing foaming, which takes place at the exit of the extruder. In this case, the temperature of the extruder is normally maintained in the temperature range from 170 to 220oC.

According to the other is injected into the twin screw extruder. At a given distance from the point of supply of the extruder injected foaming agent in the molten mixture with the continuity of the whole mixture along the extruder, thus causing foaming, which takes place at the exit of the extruder. In this case, the temperature of the extruder is also normally maintained in the temperature range from 170 to 220oC.

The following examples are given to illustrate but not to limit the present invention.

The methods used to obtain data regarding the properties given in the examples and in the description (unless otherwise noted) are listed below.

Properties - Methods
The melt index (IRA, IR) - ASTM D-1238, condition E or L
Soluble in xylene fraction (see note I below)
Characteristic viscosity is Determined in tetrahydronaphthalene at 135oWith
Residual elongation when the 100% modulus ASTM D-412
Ultimate tensile strength - ASTM D-638
Elongation at break - ASTM D-638
Hardness shore a and shore D ASTM D-2240
Abrasion - DIN 53516
Note I. Determine the percentage of soluble in xylene.

The sample solution in xylene get with a concentration of 1 wt.% and the specified pattern is kept in C, then pour it in a bath at 25oFrom where leave for 20 minutes without stirring, and then resume mixing for an additional 10 minutes and Then the solution is filtered and add acetone to a portion of the filtrate to cause the precipitation of the dissolved polymer. Thus obtained polymer is extracted, washed, dried and finally weighed to determine the percentage of soluble in xylene.

The components used in examples and comparative examples.

1) Heterogeneous composition (I) having L 0.6 to 1 g/10 min, comprising, by wt.%:
A. 33% crystalline statistical copolymer of propylene and 4.3% of ethylene, the copolymer contains about 9% of a fraction soluble in xylene at 25oWith, and has a characteristic viscosity [] of 1.5 DL/g;
Century 6% of a substantially linear copolymer of ethylene and propylene, are not completely soluble in xylene at 25o;
S. 61% of an amorphous copolymer of ethylene and propylene containing 30% ethylene, completely soluble in xylene at 25oWith and having a characteristic viscosity [] of 3.2 DL/g

The song is produced by sequential polymerization in the presence of wysokopre heterogeneous composition (1) with 5 wt.% maleic anhydride and 1 wt.% 2,5-dimethyl-2,5-di(tertBUTYLPEROXY)hexane.

3) a Copolymer containing 72 wt.% ethylene and 28 wt.% 1-octene (according to IR analysis, conducted by the Dow Chemical company) having a hardness shore a 66 points and density 0,863 g/cm3. The specified copolymer supplied by Dow Chemical company under the trademark Engage 8180.

4) a Copolymer containing 75 wt.% ethylene and 25 wt.% 1-octene (according to IR analysis, conducted by Dow Chemical) having a hardness shore a 75 points and density 0,868 g/cm3. The specified copolymer supplied by Dow Chemical under the trademark Engage 8150.

5) a Copolymer containing 76 wt.% ethylene and 24 wt.% 1-octene (according to IR analysis, conducted by Dow Chemical) having a hardness shore a 75 points and a density of 0.87 g/cm3. The specified copolymer supplied by Dow Chemical company under the trademark Engage 8200.

6) Atactic propylene homopolymer and an amorphous copolymer of propylene with 30 wt. % ethylene. Homo-polymer is completely dissolved in xylene and has a characteristic viscosity to 2.57 DL/g,% d)-%(m)=17,8, and=0,99; the copolymer has a characteristic viscosity of 2.2 DL/g. They both are obtained by using dimetilan(9-fluorenyl)silentservicecode (CH3)2Si (Flu)2ZrCl2as the catalyst. The above application for the European patent EP-A-604917 describes the decree is ilidene-1-norbornene with 27 wt.% propylene and 3.5 wt.% 1-norbornene (EPDM rubber), the Mooney viscosity ML1+460 at 125oC.

8) Polyisobutylene (8) having a molecular weight of 125000, a Mooney viscosity (MLL) 100, supplied by the firm echop.

9) Trigonox 101/50: 50 wt. % 2, 5-dimethyl-2,5-di(tert-butyl peroxy)hexane and 50 wt.% inert powder.

10) Irganox 225: 50 wt.%. Pentaerithrityl [3(5,5-di-tert-butyl-4-hydroxyphenyl)propionate (Irganox 1010)+50 wt.% three(2,4-di-tert-butylphenyl)phosphite (Irgafos 168).

Examples 1-3
Heterophase composition (1), the polymer concentrate (2) and the copolymer Engage 8180 mixed in a closed Bunbury mixer operating at 60 rpm at a temperature of 190-200oC. After 3 min from the start of mixing add the concentrate ZnO (brand - Rhenogran) at 80%. Mixing continued for an additional 3 minutes. The number of components is given in table 1.

35 g of the thus obtained mixture is used for molding 1201202 mm of the sample using a compression press. The duration of the molding process is 5 min, and it is held at a temperature in the range from 200 to 220oC. Immediately after the sample is cooled to 23oWith pressure in the second press.

Table 1 shows the physico-mechanical properties of polymer Engage 8180 not add to the heterogeneous composition.

The components of the mixture, the appropriate number and physico-mechanical properties of samples obtained from the above-mentioned mixture are given in table 2.

Examples 6-9.

Repeat example 1 with the difference that instead of the copolymer Engage 8180 use the copolymer Engage 8150 in example 9 instead use ZnO concentrate carbonate of zinc.

The number of components of the mixtures are presented in table 3. Table 4 summarizes the physico-mechanical properties of samples obtained from these mixtures.

Comparative example 2C
Repeat example 6 with the difference that the polymer does not impart a functional group and the blend is seamless.

The components of the mixture and the corresponding amount shown in table 3. Table 4 summarizes the physico-mechanical properties of samples obtained from this mixture.

Example 10
Repeat example 3 with the difference that the mixture also contains liquid paraffin (trade mark 0V AT 55).

The components of the mixture and the corresponding amount shown in table 5. Table 6 provides a physical-mechanical properties of samples obtained from this mixture.

Example 11
Repeat example 1 but using the components shown in table 5. Table 6 provides a physical-what chii, instead copolymer Engage 8180 use the EMA copolymer (a copolymer of ethylene with 29 wt.% of methyl acrylate) in amounts shown in table 7. Table 8 shows the properties of the composition.

Example 13.

Repeat example 2 with the difference that instead of the copolymer Engage 8180 use a copolymer of ethylene with 30 wt.% propylene in amounts shown in table 7. Table 8 shows the properties of the composition.

Example 14.

Repeat example 2 with the difference that instead of the copolymer Engage 8180 use a homopolymer of propylene in amounts shown in table 7. Table 8 shows the properties of the composition.

Example 15.

Repeat example 2 with the difference that instead of the copolymer Enqaqe 8180 use EPDM rubber (7) in amounts shown in table 7. Table 8 shows the properties of the composition.

Example 16.

Repeat example 1 with the difference that instead of the copolymer Engage 8180 use polyisobutylene (8) in amounts shown in table 7. Table 8 shows the properties of the composition.

Example 17
Pellets of the mixture of example 2 ekstragiruyut at 170oIn the presence of sodium bicarbonate in the amount of 3 wt.% with respect to the weight of the mixture.

The obtained foamed strand has a density of 0.35-0.45 g/cm3.

Example 18
Repeat view3.

Example 19
Repeat example 3 with the difference that the use of the composition (1), destructionand slight cracking to achieve L 8 g/min, and instead copolymer Engage 8180 use Engage 8200. The resulting composition has L of 5.3 g/10 min.

Properties of the sample, thus obtained, are shown in table 9.

Comparative example 3C.

Repeat example 19 with the exception that only use heterogeneous composition (1) and the copolymer Engage 8200 in equal ratio. The resulting composition has L 7.5 g/10 min.

Properties of the thus obtained sample are shown in table 9.


Claims

1. Ionomer polymer mixture comprising From2-C10-olefinic polymers by grafting of monomers containing at least one carboxyl group or its derivative, and ions of metals of group I or II of the periodic system, characterized in that With2-C10-olefinic polymers are polyolefin mixture comprising 100 wt.h. heterophase polyolefin composition containing 5-50 wt.% crystal homopolymer propylene with a measure of stereoregularity more than 80%, or a crystalline copolymer of propylene, ethylene and/or-olefin CH2=chr, where R represents a C2-C8-alkyl radical, or ethylene, propylene and the specified-olefin, and this fraction is insoluble in xylene at ambient temperature, and 40-95 wt.% elastomeric fraction of a copolymer of ethylene and propylene or ethylene and-olefin CH2= R, where R represents a C2-C8-alkyl radical, or ethylene, propylene and the specified-olefin, and optionally minor quantities of a diene, and the specified fraction of the copolymer contains less than 40 wt.% ethylene, and is soluble in xylene at ambient temperature, and 0-250 wt.h. the elastomeric polymer selected from the group comprising a copolymer of ethylene and C3-C10--olefin and optionally a diene, containing at least 20 wt. % the specified-olefin, a copolymer of ethylene and methyl acrylate containing from 15 to 30 wt.% repeating units of methyl acrylate or vinylacetate and eMule from approximately 100,000 to 300,000, measured as the average viscosity, atactic propylene homopolymer and an amorphous copolymer of ethylene and C3-C6--olefin obtained with metallocene catalysts, while carboxyl groups neutralized from 1 to 100% of the metal ions.

2. The mixture under item 1, characterized in that the polyolefin mixture contains 30-80 wt.% heterophase composition and 20-70 wt.% the elastomeric polymer.

3. The mixture under item 2, characterized in that the elastomeric polymer is a copolymer of ethylene and 1-octene.

4. The mixture under item 1, characterized in that it is intended to obtain a foamed product.

5. Foamed product obtained from the mixture under item 1.

 

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The invention relates to compositions based on vinylaromatic polymers having high mechanical characteristics even after aging at 200aboutWith, for example, when 200-250aboutWith that unchanging rheological properties

The invention relates to sealing compositions, representing the vacuum putty, and is used to ensure the integrity of the processes of vacuum and vacuum-pressure molding of articles made of polymer composite materials and metals at 125-180oWith

The invention relates to rubber industry and can be used in the manufacture of rubber compounds for ozone and weather resistant rubber articles such as pneumatic tires, shells, and other multilayer reinforced products

The invention relates to the field of stabilizing nanosystem polymers, more specifically to the field of stabilization of butyl rubber

The invention relates to the field of polymer-bitumen compositions and can be used for waterproofing metal surfaces of building structures, pipelines and bottoms of cars

The invention relates to polymeric compositions for coating and is used to protect the trunk gazonefteprovodov and other metal structures from corrosion

The invention relates to sealing compositions used in coating and impregnating masses in the manufacture of roll roofing materials

The invention relates to the tire industry may be used.

The invention relates to the chemical industry, to the regeneration method of rubbers based on butyl rubber

The invention relates to thermoplastic olefin compositions that contain a thermoplastic olefin grafted maleic anhydride Homo-polymer or a statistical copolymer of propylene, olefin polymer material grafted maleic anhydride functionalized polymer that interacts with groups of maleic anhydride grafted polymers, and, optionally, polyethylene grafted maleic anhydride

The invention relates to polyolefin compositions containing polymeric material based on polypropylene and partially crosslinked thermoplastic composition of olefinic elastomers designed to obtain the embossed sheet
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