WO2004083299A1 - エチレン・α−オレフィン・非共役ポリエン共重合体からなるペレット、熱可塑性エラストマーの製造方法、エチレン・α−オレフィン・非共役ポリエン共重合体からなるペレットの製造方法 - Google Patents
エチレン・α−オレフィン・非共役ポリエン共重合体からなるペレット、熱可塑性エラストマーの製造方法、エチレン・α−オレフィン・非共役ポリエン共重合体からなるペレットの製造方法 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/06—Sulfur
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
- C08L2666/06—Homopolymers or copolymers of unsaturated hydrocarbons; Derivatives thereof
Definitions
- the present invention relates to a specific non-conjugated polystyrene copolymer
- the present invention relates to a pellet made of a plasticizer, a method for producing a thermoplastic elastomer using the pellet, and a method for producing the pellet. More specifically, it does not block, and is a crosslinked rubber or a crosslinked resin modifier.
- the present invention relates to a pellet which has a high crosslinking reactivity when used as a rubber, and is particularly preferably used for a thermoplastic elastomer, a method for producing an i-plastic elastomer using the pellet, and a method for producing the pellet. Background art
- Ethylene olefin copolymer rubbers such as EPR and EPDM do not have unsaturated bonds in the main chain of their molecular structure, so they are superior in heat resistance and weather resistance to general-purpose gen-based rubbers. It is widely used in applications such as cross-linked resin modifiers, non-cross-linked resin modifiers, automotive parts, electric wire materials, building civil engineering materials, and industrial material parts. Among the above applications, the kneading step is very important in the production process of crosslinked rubber. When preparing an uncrosslinked compounded rubber or crosslinked rubber, it is necessary to knead raw rubber with secondary materials such as carbon black and filler, and plasticizers such as oil, etc.
- a raw rubber veil requires a process (mastication) for breaking the veil and plasticizing it. Therefore, if the pellets are crushed in advance, the kneading time may be shortened.
- a raw rubber having a high crystallinity must be used, and there is a problem in that rubber having poor cold resistance cannot be obtained. Therefore, pellets of raw rubber with low crystallinity are desired.
- PaMeetRubberDiv AmChemSoc VOL. 157th, No. 16, p36 (2000) discloses a method for shortening the kneading time by a continuous kneading technique of SBR. Although this method greatly increases the amount of rubber processed per unit time, it requires a pellet or a padder that does not block.
- EPR and EPDM are not only used as foam rubber, but also as impact modifiers (non-crosslinked type) such as polypropylene resin and thermoplastic elastomers, modifiers for AS resin and PS resin (crosslinked). Type). EPR and EPDM have improved low-temperature properties by lowering the ethylene content, and are excellent in improving the low-temperature impact resistance of polypropylene resins, thermoplastic elastomers, AS resins, and PS resins.
- EPR and EPDM with low ethylene content are difficult to handle in pellets and are handled as veils. It is difficult to handle.
- EPR and EPDM with low ethylene content means ethylene content Is about 50 to 75 moles.
- pelletized polypropylene resin and bale-shaped EPR and EPDM are blended to prepare a master patch pellet with high polypropylene resin content and used.
- Mixing such a bale-shaped EPR or EPDM with a pellet-shaped polypropylene resin has a problem that the production cost is increased.
- the use of resin-containing pellets is problematic when the resin content is low or when the product is manufactured. This is because there is no freedom to freely change the resin content in the product.
- the rubber pellet when used as a crosslinked rubber or a crosslinkable resin modifier, it is desired that the rubber pellet has excellent crosslinking reactivity.
- the present invention is intended to solve the problems associated with the conventional techniques as described above, and when used as a crosslinked rubber, a kneading time can be shortened, and a rubber having excellent crosslinking reactivity and excellent cold resistance can be obtained.
- the thermoplastic elastomer can be continuously produced by an extruder or the like without blocking, and the properties of the obtained thermoplastic elastomer are excellent.
- Providing a pellet comprising an ethylene ⁇ -olefin copolymer and a plasticizer a method for producing a thermoplastic elastomer using the pellet, and easily producing the pellet at low cost. It aims to provide a way to do it.
- the pellet of the present invention comprises (A) 100 parts by weight of an ethylene / ⁇ -olefin / non-conjugated polyene copolymer containing a structural unit derived from a non-conjugated polyene represented by the general formula [I] or [II].
- thermoplastic resin is characterized by comprising 30 parts by weight with respect to 100 parts by weight of (II) above;
- R 1 is a hydrogen atom or an alkyl group having 1 10 carbon atoms
- R 2 is a hydrogen atom or an alkyl group having 15 carbon atoms
- R 3 is a hydrogen atom or an alkyl group having 110 carbon atoms).
- thermoplastic resin it is one of the preferable embodiments that substantially no thermoplastic resin is contained.
- the ethylene ("-olefin) non-conjugated poly (ene) copolymer (A) power satisfy the following (i) and (ii);
- Intrinsic viscosity [77] (in decalin, 135 ° C) is from 1 to: L 0 dlZg, and
- the monole ratio of ethylene / ⁇ -olefin is 50/50 98/2. .
- the pellet satisfies the following conditions (iii) and (iv);
- the blending ratio of plasticizer refers to the weight of ( ⁇ ) ethylene ⁇ ⁇ -olefin ′ non-conjugated polyene copolymer and the weight of ( ⁇ ) plasticizer in the pellet of the present invention. to the total of, (beta) the ratio of the weight of the plasticizer is a representation 0/0.
- the method for producing a thermoplastic elastomer according to the present invention is characterized in that dynamic crosslinking is performed using the pellets, and it is preferable that dynamic crosslinking is performed by continuously supplying the pellets to a melt kneader. More preferably, the kneading machine is an extruder.
- the method for producing a pellet of the present invention comprises: ( ⁇ ) an ethylene / ⁇ -olefin / non-conjugated polystyrene copolymer containing a structural unit derived from the non-conjugated polyene represented by the general formula [I] or [II]; Parts by weight, an organic solvent (D) 0 to 10 parts by weight, a plasticizer ( ⁇ ), and, if necessary, a thermoplastic resin (C3), a rubber composition comprising: While being introduced into the extruder, a thermoplastic resin (C4) is introduced into the extruder from another supply section as needed in the presence of an inert gas, and the rubber composition and the thermoplastic resin as necessary are introduced.
- FIG. 1 is an example of a multi-stage vented extruder used in the method for producing the ethylene copolymer rubber composition Berets 1 according to the present invention, which has a biaxial three-stage vent. It is a schematic explanatory drawing of an extruder.
- 1 is an extruder with a twin-screw, three-stage vent
- 2 is an ethylene-polyolefin copolymer rubber supply section
- 3 is a thermoplastic resin supply section
- 4 is a vent hole
- 5 is a take-out.
- Each mouth is represented.
- the ethylene • ⁇ -olefin' non-conjugated polyene random copolymer ( ⁇ ) preferably used in the present invention comprises ethylene and 3 to 2 carbon atoms. This is a random copolymer of 0 "-olefin and a non-conjugated polyene.
- Examples of such ⁇ -olefins having 3 to 20 carbon atoms include propylene, 1-butene, and 4-methylino 1 —Pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, 1-decene, 1-dedecene, 1-dodecene, 1-tridecene, 1-tetradecene, 1 pentadecene, 1-hexadecene, 1 Ptadecene, 1-nonadecene, 1-eicosene, 9-methyl / 1-glycene, 11-methyl-11-dodecene, 12-ethyl-11-tetradecene, etc.
- carbon Olefins having 3 to 10 atoms are preferred, and propylene, 1-butene, 11-hexene, 11-otaten and the like are particularly preferably used.
- CK-olefins are used alone or in combination of two or more.
- the non-conjugated polyene used in the present invention is a norbornene compound represented by the following general formula [I] or [II].
- n is an integer of 0 to 10
- R 1 is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms
- alkyl group having 1 to 10 carbon atoms for R 1 include a methyl group, an ethyl group, a propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group and a t-butyl group. , N-pentyl group, isopentyl group, t-pentyl group, neopentyl group, hexyl group, isohexyl group, heptyl group, octyl group, hydroxyl group, decyl group and the like.
- R 2 is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms.
- alkyl group having 1 to 5 carbon atoms of R 2 include the alkyl groups having 1 to 5 carbon atoms among the specific examples of the above R 1.
- R 3 is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, the alkyl group having 1 to 10 carbon atoms in R 3, the alkyl group shown example in R 1 Is mentioned.
- norbornene compound represented by the above general formula [I] or [II] include 5-methylene-12-norportene, 5-bier-12-norportene, and 5- (2-prodone).
- Norbornene 5- (1-Meth / Lee-3-buteninole) -2-norbornene, 5-1 (5-hexenyl) _2-norbornene, 5- (1-Methyl-14-penteninole) 1-2-Norvonolenene, 5 — (2,3-Dimethyl-3-butenyl) -1-Norbornene, 5- (2-Ethyl-3-butyr) -12-Norpolene, 5— (6-heptur) 1-2-Norol
- These norponene compounds can be used alone or in combination of two or more.
- these norponene compounds contain a plasticizer (B) and a pellet having excellent blocking properties even if the content of the thermoplastic resin (C) is small or zero. can do.
- the pellet when used for a crosslinked rubber or as a crosslinkable resin modifier, it has high crosslinking reactivity, and when used for a crosslinked rubber, it has excellent compression set resistance, etc., and a crosslinkable resin modifier. When used for, it has excellent impact resistance.
- the above ethylene. -Olefin 'non-conjugated polyene random copolymer (A) has the following properties, and is preferably 1 /! / ,.
- the intrinsic viscosity [] of ethylene / olefin / non-conjugated polyene random copolymer rubber (A) measured in decalin at 135 ° C is not particularly limited, but is usually 1 to 10 d 1 / g.
- the preferred lower limit is 1.5 diZg, more preferably 1.6 dl / 'g, still more preferably 1.8 dl / g, even more preferably 2.O dl / g, particularly preferably 2.5 dl / g. g, most preferably 3. O d lZg.
- the upper limit is preferably 8.0 dl / g, more preferably 6.0 dl / g, particularly preferably 5.0 dl / g, and most preferably 4.5 dl / g.
- Specific examples of preferred ranges include, preferably, 1.5 to 8 dlZg, more preferably 2 to 6 dl / g, particularly preferably 2.5 to 5 d1 / g, and particularly preferably 3 to 4 5 d IZg is preferred.
- the intrinsic viscosity [7] is in the above range, a rubber composition capable of providing a crosslinked rubber molded article and a thermoplastic elastomer excellent in balance with strength properties and processability is obtained.
- Non-conjugated polyene random copolymer rubber ( ⁇ ) is composed of (a) a unit that can be conducted by ethylene, and (b) a homoolefin having 3 to 20 carbon atoms (hereinafter simply referred to as ⁇ -olefin).
- the unit derived from force is usually 40 / 60-95 / 5, preferably 50 / 50-90 / 10, preferably 55 45-85 / 15, and particularly preferably 60/50. It is contained in a molar ratio [(a) / (b)] of 40 to 80/20.
- the molar ratio when used for a crosslinked rubber, it is possible to provide a crosslinked rubber molded article which is excellent in heat aging resistance, strength properties and rubber elasticity, and is excellent in cold resistance and workability. Also, when used as a crosslinked resin modifier, it has excellent impact resistance, especially at low temperatures.
- the oxygen value of the ethylene ' ⁇ -olefin' non-conjugated polyene random copolymer rubber ( ⁇ ) is not particularly limited to 1 /, but is preferably 0. 5 to 50 (g / 100 g), more preferably 0.8 to 40 (g / 100 g), still more preferably 1 to 30 (g / 100 g), particularly preferably 1.5 to 25 (g / 100 g). 100 g).
- a crosslinked rubber molded article can be provided.
- the resin when used as a cross-linking type resin modifier, the resin has a high graphitic efficiency, and the resin and rubber are firmly bonded to each other, improving the impact resistance.
- the cross-linking density of the rubber increases, thereby improving the compression set resistance.
- the rubber is hardly deformed, so that the transparency is improved.
- the iodine value is particularly 20 or less, preferably 15 or less, more preferably 12 or less, and still more preferably 10 or less. In this case, the workability and the physical properties after crosslinking are particularly excellent. If the oxygen value exceeds 50, it may be disadvantageous in terms of cost. .
- the molecular weight distribution (Mw / Mn) of the ethylene • ⁇ -olefin ′ non-conjugated polyene random copolymer rubber (A) measured by GPC is not particularly limited, but is usually 3 to 100, preferably 3.3 to 75, more preferably 3.5 to 50.
- Mw / Mn molecular weight distribution
- a rubber composition which can provide a vulcanized rubber molded article having excellent processability and excellent strength properties when used as a crosslinked rubber is obtained.
- the ethylene-olefin / non-conjugated polyene random copolymer rubber (A) of the present invention preferably has a viscosity of ML (1 + 4 ) (125 ° C) of 30 or more.
- the viscosity is measured according to JI SK-6300.
- the ethylene- a- olefin-non-conjugated polyene random copolymer (A) of the present invention is more preferably a rubber.
- the copolymer (A) of the present invention preferably has a press sheet having a crystallinity of not more than 20% by an X-ray diffraction method.
- the branching index of the ethylene * ⁇ -olefin> non-conjugated polyene copolymer (A) used in the present invention is preferably from 0.3 to 0.95.
- 0.90, 0.85, 0.80, 0.75, 0.70, 0.65, 0.60 can be cited as the upper limit of the branching index. Is more preferred.
- Preferred values of the lower limit of the branching index include, for example, 0.35 and 0.40.
- branching index examples include 0.3 to 0.90, particularly 0.3 to 0.85, particularly 0.35 to 0.85, particularly 0.40 to 0.80, particularly 0.40 to 0.75, especially 0.40 to 0.70, especially 0.40 to 0.65, especially 0.45 to 0.65, especially 0.5 to 0.65, especially 0.5 ⁇ 0.60 is preferred.
- the branching index can be measured as described in the section of Examples.
- ( ⁇ ) plasticizer is contained in the pellet
- GPC measurement and] measurement can be performed by removing the plasticizer by extraction.
- thermoplastic resin is contained in the pellet
- [ ⁇ ] measurement can be performed by removing the thermoplastic resin. GPC measurement was performed on the pellets together.
- the ethylene / olefin ′ non-conjugated polyene random copolymer rubber (A) used in the present invention can be prepared at a polymerization temperature of 30 to 60 ° C.
- the soluble vanadium compound (J) is a component that is soluble in a hydrogenation medium of a polymerization reaction system.
- the general formula VO (OR) ⁇ or (OR) e X d (wherein R Is a hydrocarbon group, represented by 0 ⁇ a ⁇ 3, 0 ⁇ b ⁇ 3, 2 ⁇ a + b ⁇ 3, 0 ⁇ c ⁇ 4 N 0 ⁇ d ⁇ 4, 3 ⁇ c + d ⁇ 4)
- Vanadium compounds or their electron donor adducts can be mentioned as typical examples.
- VOC 1 3, VO (OC 2 H 5) C 1 2, VO (OC 2 H 5) 2 C 1, VO (O- iso- C 3 H 7) C 1 2, VO (O - n- C 4 H 9) C 1 2, V_ ⁇ (OC 2 H 5) 3, VOB r 3, VC 1 4, VOC 1 3, VO (O- n_C 4 H 9) 3, VC 13 ⁇ 2OC 6 H 12 OH and the like can be exemplified.
- organic aluminum compound (K) specifically,
- Trialkyl aluminum such as triethyl aluminum and tributyl aluminum; Dialkylaluminum alkoxides such as getylaluminummethoxide and dibutylaluminumbutoxide;
- Alkylaluminum sesquialkoxides such as ethylaluminum sesquiethoxide and butylaluminum sesquipoxide;
- R 1 0. 5 A 1 (OR 1).
- Dialkylaluminum halides such as getylaluminum chloride and dibutylaluminum chloride;
- Alkyl aluminum sesquichloride such as ethyl aluminum sesquichloride, butyl aluminum sesquichloride, etc., and partially aluminum alkyl aluminum such as alkyl aluminum sesquichloride such as ethyl aluminum dichloride;
- alkyl aluminum such as alkyl aluminum hydride such as dimethyl aluminum hydride and dibutyl aluminum hydride and alkyl aluminum dimethyl hydride such as ethyl aluminum dihydride;
- Partially alkoxylated or halogenated alkylaluminums such as ethylaluminum ethoxylic lid and butylaluminum butoxylic lid may be mentioned.
- a soluble Ba Najiumu compound represented by VOC 1 3, of the above compounds (I) A 1 (OC 2 H 5) 2 C 1 / Al 2 (OC 2 H When 5) 3 C 1 3 of the blend (blend ratio 1/5 or more) is used as a catalyst component, Soxhlet extraction (solvent: boiling xylene, extraction time: 3 hours, mesh: 325) insoluble angle after Hideri min Is preferably 1% or less, because an ethylene-a-olefin-non-conjugated polyene random copolymer rubber (A) can be obtained.
- a so-called meta-mouth catalyst for example, a meta-mouth catalyst described in JP-A-9-40586 may be used.
- the branching index can be controlled by adjusting the non-conjugated polyene content, the polymerization temperature, the polymerization pressure, the polymer concentration, the type of catalyst, and the type of cocatalyst in the formula [I].
- the ethylene ' ⁇ -olefin' non-conjugated polyene random copolymer rubber ( ⁇ ⁇ ) used in the present invention is graft-modified with a polar monomer such as an unsaturated carboxylic acid or a derivative thereof (eg, acid anhydride or ester). You may.
- unsaturated carboxylic acids include atrialic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, citraconic acid, tetrahydrophthalic acid, and bis (2-, 1) hept-2- Ene-5,6-dicarboxylic acid and the like.
- unsaturated carboxylic acid anhydrides include maleic anhydride, itaconic anhydride, citraconic anhydride, tetrahydrophthalic anhydride, and bicyclo (2,2,1) hept-2-ene_5, 6 monocarboxylic acid anhydrides and the like. Of these, maleic anhydride is preferred.
- the unsaturated carboxylic acid esters include methyl acrylate, methacrylate / methacrylate, dimethylate maleate, monomethylate / maleate, fumarate / dimethyl oleate, dimethyl itaconate, getyl citraconic acid, and tetrahydrochloride.
- the above-mentioned graft modifier unsaturated carboxylic acid
- the graft amount is preferably 0.1 mol or less per 100 g of the non-conjugated polystyrene copolymer rubber.
- ethylene 'x-olefin' non-conjugated polyene random copolymer rubber (A) having the above-mentioned graft amount in the above range can provide a vulcanized rubber molded article having excellent cold resistance. (Molding processability) The rubber composition excellent in it is obtained.
- the graft-modified ethylene-olefin 'non-conjugated polyene random copolymer rubber ( ⁇ ) is obtained by combining the above-mentioned unmodified ethylene-a-olefin-non-conjugated polyene copolymer rubber with an unsaturated carboxylic acid or a derivative thereof. It can be obtained by reacting in the presence of a radical initiator.
- This grafting reaction can be carried out in an aqueous solution or in a molten state. When the graft reaction is carried out in a molten state, it is most efficient and preferable to carry out the graft reaction continuously in an extruder.
- an organic peroxide having a temperature giving a half-life of 1 minute in the range of 130 to 200 ° C. is preferable, and in particular, dicumyl peroxide, GD t-butyl peroxide, g-t-butyl peroxy-3,3,5-trimethinoresic hex, t-butyl cuminoleoxide, g-t-amyl peroxide, t-butynolehydropar Organic peroxides such as oxides are preferred.
- Polar monomers other than unsaturated ruponic acid or its derivatives include hydroxyl-containing ethylenically unsaturated compounds, amino-containing ethylenically unsaturated compounds, and epoxy-group-containing ethylenically unsaturated compounds.
- plasticizer for example, the following are used.
- paraffin-based process oils Specifically, paraffin-based process oils, naphthenic-based process oils, aromatic-based process oils, ethylene and e-olefin-based ligomers, paraffin pettus, liquid paraffin, white oil, petrolatum, lubricating oil, petroleum asphalt, ⁇ Petroleum softeners such as serine;
- Coal tar softeners such as Coulter Nole and Ko / Letter Nole Pitch
- Fatty oil-based softeners such as castor oil, linseed oil, rapeseed oil, and coconut oil;
- Synthetic polymeric substances such as petroleum resin, atactic polypropylene, and coumarone indene resin;
- Phthalic acid derivative isophthalic acid derivative, tetrahydrophthalic acid derivative, adipic acid derivative, azelaic acid derivative, sepasic acid derivative, dodecane mono-acid derivative, maleic acid derivative, fumaric acid derivative, trimellitic acid derivative, pyromellitic acid derivative , Cunic acid derivative, itaconic acid derivative, oleic acid derivative, ricinoleic acid Examples thereof include conductors, stearic acid derivatives, phosphoric acid derivatives, sulfonic acid derivatives, glycerin derivatives, daltalic acid derivatives, epoxy derivatives, glycol derivatives, paraffin derivatives, and silicone oil.
- ethylene- and olefin-co-oligomers which originally contain a small amount of a Lewis base having chemical reactivity, are preferably used.
- paraffin-based process oils, ethylene and ⁇ -olefin Is are preferably used.
- plasticizer (II) those having a crosslinking inhibition rate of 30% or less can be preferably used.
- compounds having Lewis base chemical reactivity such as whey, nitrogen compounds, phosphorous conjugates, etc. are completely removed or reduced to a very small amount. Can be achieved.
- commercially available products can be used after confirming the crosslinking inhibition rate.
- the measurement of the crosslinking inhibition rate is calculated as follows from the crosslinking torque Ml of the rubber composition containing the predetermined liquid EPR and the crosslinking torque M2 of the rubber compound after blending various plasticizers. .
- the crosslinked torque thus obtained is a crosslinked tonolec Ml of a rubber composition blended with a predetermined liquid EPR.
- the use of the ethylene / ⁇ -olefin 'non-conjugated polyene copolymer oil-extended by the plasticizer (B) makes it possible to use carbon black or carbon black when used for a crosslinked rubber as compared with the case where a plasticizer is added later.
- the dispersibility of a white filler or the like can be improved.
- a resin modifier such as a thermoplastic elastomer
- the content of the plasticizer (B) in the pellets of the present invention is (A) 1 to 150 parts by weight with respect to 100 parts by weight of the ethylene / hydroolefin / non-polyene copolymer.
- the upper limit is preferably 130 parts by weight, and one preferred upper limit embodiment is 100 parts by weight.
- the lower limit of the content is preferably 5 parts by weight, more preferably 15 parts by weight, and if it is large, it may be 40 parts by weight or more, or even 70 parts by weight or more. It is a feature of the present invention that the pellet will not block even if it contains more plasticizer. Specifically, it is preferably used in an amount of 5 to 130 parts by weight, more preferably 5 to 100 parts by weight, and the amount is appropriately adjusted depending on the application. More preferably, 5 to 60 parts by weight, more preferably 5 to 40 parts by weight, particularly preferably 5 to 25 parts by weight, and in another embodiment, 25 to 45 parts by weight or 45 -70 parts by weight is preferred.
- the pellet of the present invention comprises (A) an ethylene- ⁇ -olefin ′ non-conjugated polystyrene copolymer, a plasticizer ( ⁇ ), and, if necessary, (C) a thermoplastic resin. To (iv) are preferably satisfied.
- Ethylene >> The intrinsic viscosity of the ⁇ -olefin nonconjugated polyene copolymer is from 1 to 10 d 1 / g.
- the adhesion resistance between the pellets will be good. Also, when used as a crosslinked rubber for crosslinking, it has good strength properties, and when used as a crosslinked resin modifier, it has good impact resistance and strength properties.
- the ethylene / ⁇ -olefin 'non-conjugated polystyrene copolymer has an ethylene / ⁇ -olefin molar ratio in the range of 50/50 to 98/2.
- the composition When the molar ratio is at least the lower limit, the composition will have excellent compression set when used as a crosslinked rubber, and will have excellent impact resistance when used as a crosslinked resin modifier. Below the upper limit, when used as a crosslinked rubber, compression set at low temperatures is excellent, and when used as a crosslinked resin modifier, cold resistance is excellent.
- Ethylene 'one olefin' non-conjugated polystyrene [] and ethylene olefin molar ratio satisfy the following formula.
- the ratio of the plasticizer in the copolymer bellet (weight 0 ) refers to the weight of ( ⁇ ) ethylene ⁇ ⁇ -olefin 'non-conjugated polyene copolymer in the pellet of the present invention, and ( ⁇ ) plasticizer. ( ⁇ ) The ratio of the weight of the plasticizer to the total weight of the plasticizer in%.
- thermoplastic resin (C) polychlorinated vinyl, polystyrene, SEPS, SEBS, silicone resin, nylon 6, nylon 11, Nylon 12, nylon 66, polycarbonate, polyacetal, PET ⁇ BT, polyolefin resin, etc.
- the polyolefin resin (C1) is preferable.
- a polyolefin resin (C1) specifically,
- Ethylene homopolymer such as high-density polyethylene (HDPE), medium-density polyethylene (MDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), etc. or ethylene and 3 to 20 carbon atoms
- PE high-density polyethylene
- MDPE medium-density polyethylene
- LDPE low-density polyethylene
- LLDPE linear low-density polyethylene
- ethylene and 3 to 20 carbon atoms A crystalline ethylene ⁇ ⁇ 3 ⁇ 4-olefin copolymer comprising, preferably, 3 to 8 a-olefins;
- Polypropylene (C2) such as propylene homopolymer, propylene block copolymer, and propylene random copolymer; Crystalline unit weight of ⁇ -olefin having 3 to 20 carbon atoms, preferably 3 to 8 carbon atoms, such as propylene, 1-butene, 4-methynole-l-pentene, 1-hexene, 1-leptene, and 1-otene. Copolymers and copolymers are exemplified. The melting points of these polyolefins are below 250 ° C. Among them, polyethylene and polypropylene are preferred, and polypropylene (C 2) is particularly preferred.
- the press sheet preferably has a crystallinity of 20% or more as measured by X-ray diffraction.
- polypropylene refers to homopolymers of propylene and copolymers of propylene with 0.1 to 20% by weight of ethylene or / and ⁇ -olefins having 4 to 20 carbon atoms and the like. Mixtures can be included.
- the copolymer may be a random copolymer or a block copolymer.
- a raw material of crystalline I, isotactic or syndiotactic can be used as the polypropylene.
- the polyolefin resin may be a crystalline ⁇ -olefin homopolymer composed of ⁇ -olefin having 3 to 8 carbon atoms.
- the copolymer preferably polypropylene, has a Vicat softening point of at least 130 ° C, preferably at least 140 ° C.
- the thermoplastic resin (C), preferably the polyolefin resin (C1) is based on 100 parts by weight of the specific ethylene-a-olefin 'non-conjugated polyene copolymer (A). Used in a proportion of 0 to 30 parts by weight, preferably 0 to 20 parts by weight, more preferably 0 to 15 parts by weight, still more preferably 0 to 10 parts by weight, particularly preferably 0 to 10 parts by weight. The amount is 5 parts by weight, preferably 0 parts by weight.
- (C) is 1 part by weight or more with respect to (A).
- pelletization can be performed without adding (C) a thermoplastic resin to (A) ethylene / ⁇ -olefin ′ non-conjugated polyene copolymer and (B) plasticizer, This is also one preferred embodiment.
- Ethylene of the present invention a -. Orefuin 'nonconjugated Poryen copolymer (A) and may be sufficient that because plasticizer (B), and further, the ethylene ⁇ alpha-Orefuin' non-conjugated It may be composed of a polyene copolymer (A), a plasticizer (B) and a thermoplastic resin (C). However, the amount of the thermoplastic resin (C) is not more than 30 parts by weight based on 100 parts by weight of the ethylene ' ⁇ -olefin' non-conjugated copolymer (A).
- thermoplastic resin (C 3) and the thermoplastic resin (C 4) may be referred to. However, this is an ethylene-a-olefin for manufacturing the pellet of the present invention.
- thermoplastic resin (C) to be added to the non-conjugated polyene copolymer (A) as necessary is classified into (C 3)' and (C 4) according to the timing of addition.
- FIG. 1 is an example of a multi-stage vented extruder used in the pellet manufacturing method according to the present invention, and is a schematic view of a biaxial three-stage vented extruder.
- the content of the organic solvent (D) in the solution containing 100 parts by weight of the non-conjugated poly (ene) copolymer (A) is adjusted to 0 to 10 'with respect to 100 parts by weight of the ethylene / «-olefin / non-conjugated poly (ene) copolymer (A).
- a thermoplastic resin (C3) and the resulting rubber composition ( ⁇ ). Extruder with three-stage vent
- the blending of the plasticizer ( ⁇ ), which is an essential component in the pellets of the present invention, is carried out by co-existing the solvent (D) with the ethylene-a-olefin ′ non-conjugated polystyrene copolymer (A) before being supplied to the extruder 1.
- the injection can be performed in the state of being extruded, or the injection can be performed in the middle of the extruder 1.
- Organic solvent (D) examples include conventionally known carbonized hydrogen solvents used for preparing ethylene ' ⁇ -olefin' non-conjugated polystyrene copolymer rubber by a solution polymerization method.
- hydrocarbon solvent specifically,
- Aliphatic hydrocarbons such as pentane, hexane, heptane, octane, decane, dodecane, kerosene and their halogen derivatives,
- Alicyclic hydrocarbons such as cyclohexane, methylcyclopentane, and methylcyclohexane; halogen derivatives thereof;
- Aromatic hydrocarbons such as benzene, toluene, and xylene, and halogen derivatives such as chlorobenzene are used.
- solvents may be used alone or in combination.
- the rubber composition ( ⁇ ) is a mixture of the ethylene / ⁇ -olefin, a non-conjugated polyene copolymer rubber (A) and an organic solvent (D).
- the content of the organic solvent (D) in the rubber composition (Z) is usually from 0 to 10 parts by weight based on 100 parts by weight of the ethylene ⁇ ⁇ -olefin »non-conjugated polyene copolymer rubber ( ⁇ ). Quantity.
- thermoplastic resin (C4) is introduced into the extruder 1 from another supply section 3 as required under an inert gas atmosphere, and the rubber composition ( Z) and the thermoplastic resin (C4) are kneaded, and if necessary, the solvent is removed, so that the ethylene-thiolefine 'non-conjugated polyene copolymer (A) and the plasticizer (B), and A polymer composition containing a bull group consisting of a thermoplastic resin (C) is obtained, and at this time, granulation is performed with a pelletizer (not shown) attached to the tip of the extruder 1, whereby the present invention is achieved. A pellet is obtained.
- thermoplastic resin (C4) measured by the thermoplastic resin meter is transferred to an oxygen purifier, and after removing oxygen using an inert gas in the oxygen purifier, the extruder 1 Is supplied to the thermoplastic resin supply section 3.
- the inert gas include nitrogen gas and argon gas. Nitrogen gas is preferably used.
- the thermoplastic resin (C4) to the extruder is performed using an inert gas, oxidation deterioration is prevented.
- An ethylene / ⁇ -olefin / non-conjugated polystyrene copolymer pellet can be obtained.
- the mixing ratio between the rubber composition ( ⁇ ) and the thermoplastic resin (C 4) depends on the screw rotation speed of the extruder 1 and the supply amount of the thermoplastic resin (C 4) from the thermoplastic resin meter. Controlled by keeping it constant. In addition, the supply amount of the thermoplastic resin (C 4) is stabilized by lowering the pressure of the thermoplastic resin supply unit 3 from the pressure in the oxygen substitution device.
- the thermoplastic resin (C) is present in an amount of 0 to 30 parts by weight based on 100 parts by weight of the ethylene 'a-olefin' non-conjugated polyene copolymer (A).
- the plasticizer (B) is essential, and the composition of the obtained ethylene / a-olefin / non-conjugated polyene copolymer (A) despite the presence of only a small amount of thermoplastic resin
- the pellets are easy to pelletize and the pellets obtained do not cause blocking.
- the vulcanized rubber product manufactured from the pellets maintains good rubber elasticity. Further, when this pellet is used for modifying a cross-linked resin, the dispersibility of the component (A) in the resin is improved, and the impact resistance improving performance is enhanced.
- the solvent released by the desolvation is released from the vent hole 4 to the outside of the extruder 1 and collected.
- the ethylene′ ⁇ -olefin / non-conjugated polystyrene copolymer composition in the extruder 1 produced as described above is taken out from the outlet 5 in the form of pellets or veil.
- thermoplastic resin (C) is dispersed in the ethylene / a-olefin / non-conjugated polystyrene copolymer (A)
- a kneading apparatus capable of giving a high shearing force. Specifically, it can be performed using a kneading device such as a mixing roll, an intensive mixer (for example, a Panbury mixer, a kneader, etc.), a single-screw or twin-screw extruder. It is preferred to adjust the composition.
- pellets can be obtained by granulating with a pelletizer, etc., but pelletize continuously with a pelletizer attached to the tip of the extruder as in methods 1 and 2. Is most preferred. To use these Thus, a composition dispersed with an average dispersed particle size of 3 ⁇ m or less can be easily adjusted.
- the mixing of the plasticizer (B) can be carried out in the presence of a solvent in the ethylene olefin / non-conjugated polystyrene copolymer before being supplied to the extruder 1, and the plasticizer (B) can be added to the extruder 1. Can be performed.
- Ethylene ⁇ ⁇ -olefin 'Non-conjugated 3-Polyene Copolymer Composition Belt Ethylene- ⁇ ⁇ -olefin's non-conjugated polyene copolymer composition prepared by the method for producing a pellet according to the present invention as described above.
- the ret contains a plasticizer ( ⁇ ) as an essential component and, if necessary, a small amount of a thermoplastic resin (C).
- thermoplastic resin (C) When the above-mentioned pellets further contain a thermoplastic resin (C), it is a blended product in which the thermoplastic resin is dispersed in a molten state in the orifice.
- micro-dispersion means that the average particle size (number of measured particles: 40) of the thermoplastic resin (C), which can be measured from a photograph magnified 10,000 times with a transmission electron microscope, is 2 m or less. desirable.
- the non-conjugated polyene copolymer composition pellet is used for a crosslinked rubber, it is usually used in a conventional rubber kneader such as a bread mixer, an intermix, a kneader or a continuous kneader. It is kneaded with reinforcing agents such as carbon black, fillers such as talc and clay, and compounding agents such as plasticizers, vulcanization accelerators, vulcanizing agents, etc. In the rubber compound obtained by this kneading (as necessary) The thermoplastic resin has a very good dispersion state and is fc.
- the pellets of the present invention are not particularly limited in shape, but are spherical, cylindrical, prismatic, and sponge-like, and the aspect ratio is preferably 5 or less, more preferably 3 or less, and particularly preferably 2 to 1, It is particularly preferably 1.5 to 1.
- the size is not particularly limited, but is usually about 1 to 50 mm, preferably 0.5 to 30 mm, more preferably 1 to 10 mm, and particularly preferably. Or 3 to 8 mm.
- the size of the pellet is measured, for example, using a vernier caliper to measure the maximum length L max and the minimum length L min of each of the 10 pellets arbitrarily selected, and express the average value as the size of the pellet. . (Lmax9 + Lmaxl0 + L minl + L min2 + L min3 + L min4 + L min5 + L min6 + L min7 + L min8 + Lmin9 + LminlO) / 20
- the pellets of the present invention may contain an additive for preventing blocking of powder or the like on the surface.
- the pellets of the present invention can be handled without the use of an anti-blocking agent.
- One of the characteristics is that it has excellent sex.
- pellets of the present invention can be used as they are, they can be used for crosslinking as described below, and can be used as a cross-linkable resin modifier, and as a raw material of a thermoplastic elastomer, if necessary, other resins. It is preferable to use the mixture by mixing with and crosslinking.
- the crosslinking agent and the composition for crosslinking that are preferably used at the time of crosslinking are described below.
- cross-linking agent (E) there can be used, for example, an iodine vulcanizing agent, a quinide cross-linking agent, a resin cross-linking agent, an organic peroxide cross-linking agent, cross-linking utilizing a hydrosilylation reaction, etc., which are usually used for EPR and EPDM.
- cross-linking agents have particularly high reactivity with carbon-carbon double bonds such as bull groups, and when used for cross-linked rubber, have excellent compression set resistance and bloom resistance, and are used as cross-linked resin modifiers. When used, it is excellent in the performance of modifying the compression set / impact resistance.
- the organic peroxide (E-1) is not particularly limited, but is preferably an organic peroxide having a half-life of 1 minute at a temperature in the range of 130 to 200 ° C.
- Organic peroxides such as di-t-aminoleperoxide and t-ptinolehydroperoxide are preferred.
- the molecular structure of the SiH group-containing compound (E-2) is not particularly limited, and it may be a conventionally produced resin such as a resin having a linear, cyclic, branched or three-dimensional network structure. Although it can be used, it is necessary that one molecule contains at least two, preferably three or more hydrogen atoms directly connected to a silicon atom, that is, a SiH group.
- Such S iH group-containing compound (E- 2) usually, the general composition formula bH c S 1 Li (4-bc) / 2
- R 4 is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, particularly 1 to 8 carbon atoms, excluding an aliphatic unsaturated bond; the good Una monovalent hydrocarbon group, wherein in addition to the exemplified alkyl groups R 1, Hue group, Ru can be exemplified alkyl groups such as trifluoropropyl group Ha port Gen substituted.
- R 1, Hue group, Ru can be exemplified alkyl groups such as trifluoropropyl group Ha port Gen substituted.
- a methyl group, an ethyl group, a propyl group, a phenyl group and a trifluoropropyl group are preferred, and a methyl group is particularly preferred.
- B is 0 ⁇ b ⁇ 3, preferably 0.6 ⁇ b ⁇ 2.2, particularly preferably 1.5 ⁇ b ⁇ 2, and c is 0 to c ⁇ 3, preferably 0.002.
- the SiH group-containing compound (E-1) preferably has 2 to 1000, more preferably 2 to 300, and most preferably 4 to 200 silicon hydrogen atoms per molecule. Mouth xan; specifically,
- Siloxane oligomers such as 1,1,3,3-tetramethinoresisiloxane, 1,3,5,7-tetramethinoletetracyclosiloxane, 1,3,5,7,8-pentamethinolepentacyclosiloxane;
- Methyl hydrogen polysiloxane with both ends of the molecular chain blocked with trimethylcyclooxy group.
- Methyl hydrogen with blocked both ends of the molecular chain Trimethylxoxy group with blocked methyl group and methylhydrogen siloxane copolymer, Both ends of the molecular chain with silanol group blocked with methyl alcohol
- Examples of the methylhydrogenpolysiloxane having both ends of a molecular chain and a trimethylxyloxy group blocked include a compound represented by the following formula. Further, in the following formula, part or all of a methyl group is an ethyl group, a propyl group, a phenyl group or a trimethyl group. Examples include compounds substituted with a fluoropropyl group and the like.
- dimethylxanxane-methylhydrogensiloxane copolymer having both ends of the molecular chain blocked with a dimethyl group a compound represented by the following formula, and in the following formula, a part or all of the methyl group is an ethyl group or a propyl group And a compound substituted with a phenyl group, a trifluoropropyl group or the like.
- methyl hydrogen polysiloxane having silanol groups at both ends of the molecular chain examples include the compounds represented by the following formula. Further, in the following formula, part or all of the methyl groups are ethyl, propyl, phenyl, trifluoropropyl groups. And the like.
- a dimethylsiloxane having a silanol group at both ends of the molecular chain and a methylhydrogensiloxane copolymer include, for example, a compound represented by the following formula; And a compound in which a part or all of a methyl group is substituted by an ethyl group, a propyl group, a phenyl group, a trifluoropropyl group or the like.
- Examples of the dimethylpolysiloxane endblocked by dimethylhydrogensiloxy groups at both ends of the molecular chain include a compound represented by the following formula. Further, in the following formula, part or all of a methyl group is an ethyl group, a propyl group, a phenyl group, a trifluoropropyl group. And the like.
- Examples of the methylhydrogenpolysiloxane having a dimethylhydrogensiloxy group blocked at both molecular chain terminals include a compound represented by the following formula. Further, in the following formula, part or all of the methyl group is an ethyl group, a propyl group, or a phenyl group. And a compound substituted with a trifluoro group.
- methyl hydrogen siloxane copolymer includes, for example, a compound represented by the following formula, and further, a part or all of a methyl group in the following formula. And compounds substituted with an ethyl group, a propyl group, a phenyl group, a trifluoropropyl group, and the like.
- Such compounds can be prepared by known methods, for example, octamethylcyclotetrasiloxane and / or tetramethylcyclotetrasiloxane, and hexamethyldisiloxane or 1,3-dihydride which can be a terminal group.
- a compound containing a triorganosilino group or a diorganohydrogensiloxy group, such as 1,1,3,3-tetramethyldisiloxane is treated with sulfuric acid, 10 ° C to 10 ° C in the presence of a catalyst such as fluoromethanesulfonic acid or methanesulfonic acid.
- the SiH group-containing cross-linking agent (E-2) is used in an amount of from 0.1 to 50 parts by weight, preferably from 0.1 to 100 parts by weight of the ethylene ' ⁇ -olefin / non-conjugated polyene copolymer ( ⁇ ). To 40 parts by weight, more preferably 0.1 to 30 parts by weight, still more preferably 0.2 to 20 parts by weight, still more preferably 0.2 to 15 parts by weight, particularly preferably 0.5 to 10 parts by weight, Most preferably, it is used in a ratio of 0.5 to 5 parts by weight.
- the ratio of SiH groups to aliphatic unsaturated groups (SiH groups / aliphatic unsaturated groups) related to the crosslinking of ethylene >> non-conjugated poly (ene) copolymer ( ⁇ ) is 0.2 -20, more preferably 0.5-10, particularly preferably 0.7-5.
- the catalyst (F) used as an optional component in the present invention is an addition reaction catalyst, and is used for accelerating the hydrosilylation reaction by the SiH group-containing compound.
- Non-conjugated polystyrene copolymer ( ⁇ ) Particularly if it promotes the addition reaction (carbon hydrosilation reaction of alkene) between the carbon-carbon double bond derived from the component and the SiH group of the SiH group-containing compound.
- an addition reaction catalyst comprising a platinum group element such as a platinum-based catalyst, a palladium-based catalyst, and a rhodium-based catalyst (a group 8 metal such as a group 8 metal, a group 8 metal complex, or a group 8 metal compound in the periodic table). Catalyst), and among them, a platinum-based catalyst is preferable.
- the platinum-based catalyst may be a known one usually used for addition-curing type curing, for example, a finely powdered metal platinum catalyst described in U.S. Pat. No. 2,970,150, and U.S. Pat. 218, chloroplatinic acid catalyst, U.S. Pat.
- the palladium-based catalyst is composed of palladium, a palladium compound, palladium chloride, and the like.
- the rhodium-based catalyst is composed of rhodium, a rhodium compound, chloride-dipamic acid, and the like.
- the catalyst (F) is used in an amount of 0.1 to 100 parts by weight of the ethylene / ⁇ -olefin 'non-conjugated poly (ene) copolymer ( ⁇ ); It is used in a proportion of 100,000 weight 1> 111, more preferably 1 to 50,000 weight ppm.
- the crosslinking rate is moderate. If the catalyst (F) is used in a proportion exceeding 100,000 weight p, the crosslinking rate is too high and the cost is disadvantageously disadvantageous.
- a crosslinked rubber molded article can be obtained by irradiating an unvulcanized rubber molded article of the rubber composition containing no catalyst (F) with light, y-ray, electron beam or the like.
- reaction inhibitor (G) used as an optional component together with the catalyst (F) in the present invention examples include benzotriazole, an alcohol containing an ethul group (for example, ethynylcyclohexanol), an acrylonitrile, an amide compound (for example, N, N— Diarylacetamide, N, N—Diarylbenzamide, N, N, N ′, N′—Tetralaryl o-phthalic acid diamide, N, N, N ′, N′—Tetraaryllum m-phthalic acid diamide, N, N, N ', N'-tetraaryl-l-p-phthalic acid diamide, etc.), io, phosphorus, nitrogen, aminy conjugates, io compounds, phosphorus compounds, tin, tin compounds, tetramethyltetrabutylcyclotetrasiloxane, Organic peroxides such as hide-mouthed peroxides and the like can be mentioned.
- the reaction inhibitor (G) is used in an amount of 0 to 50 parts by weight, usually 001 to 50 parts by weight, based on 100 parts by weight of the ethylene / "monoolefin" non-conjugated polystyrene copolymer (A). Like It is used in an amount of preferably 0.0001 to 30 parts by weight, more preferably 0.0001 to 20 parts by weight, further preferably 0.0001 to 10 parts by weight, particularly preferably 0.0001 to 5 parts by weight.
- reaction inhibitor (G) When the reaction inhibitor (G) is used in a proportion of 50 parts by weight or less, the induction period until crosslinking starts is excellent in balance of the crosslinking rate. If the reaction inhibitor (G) is used in a proportion exceeding 50 parts by weight, the crosslinking rate may be too slow or disadvantageous in cost.
- the ethylene • ⁇ -olefin ′ non-conjugated polystyrene copolymer composition belt of the present invention can be used without being crosslinked, but it can be used as a vulcanized material such as a crosslinked rubber molded product or a crosslinked rubber foam molded product. The characteristics can be exhibited most when used as a product.
- a conventionally known rubber reinforcing agent such as organic peroxides, vulcanization aids, foaming agents, foaming aids, coloring agents, dispersants, and flame retardants can be blended within a range that does not impair the purpose of the present invention.
- the rubber reinforcing agent has an effect of improving mechanical properties such as tensile strength, tear strength, and abrasion resistance of the vulcanized rubber.
- a rubber reinforcing agent specifically, surface treatment is performed with a carbon black such as SRF, GPF, FEF, HAF, ISAF, SAF, FT, MT, etc., or a silane coupling agent. These include carbon black, finely powdered citric acid, and silica.
- silica examples include fumed silica and precipitated silica. These silicas may be surface-treated with a reactive silane such as hexamethyldisilazane, chloro ⁇ -silane, alkoxysilane, or low-molecular-weight siloxane.
- the specific surface area (BED method) of these silicas is preferably 50 m 2 / g or more, more preferably 100 to 400 m 2 Zg.
- the type and amount of these rubber scavengers can be appropriately selected depending on the intended use.
- the amount of the 1S rubber scavenger is usually ethylene (0) -olefin (non-conjugated polyene copolymer). It is at most 300 parts by weight, preferably at most 200 parts by weight, based on 100 parts by weight of the body (A).
- the inorganic filler include light calcium carbonate, heavy calcium carbonate, talc, clay and the like.
- the type and amount of these inorganic fillers can be appropriately selected according to the application, but the amount of the inorganic filler is usually based on 100 parts by weight of the ethylene-one-olefin-non-conjugated polystyrene copolymer (A). At most 300 parts by weight, preferably at most 200 parts by weight.
- anti-aging agent examples include amine-based, hindered phenol-based, or zeo-based anti-aging agents, and as described above, these anti-aging agents may be used within a range that does not impair the object of the present invention. Used.
- Examples of the amine antiaging agent used in the present invention include diphenylamines and phenylenediamines.
- diphenylamines include-( ⁇ -toluenesulfonylamide) diphenolenoamine, 4,4'-mono (a, ⁇ -dimethinolebenzyl) diphenylinoleamine, 4,4 'dioctyl * diphenylamine, A high-temperature reaction product of diphenylamine and acetone, a low-temperature reaction product of diphenylamine and acetone, a low-temperature reaction product of diphenylamine, aniline, and acetone, a reaction product of diphenylamine and disobutylene, octylated dipheneramine, Dioctylated diphenylamine, ⁇ , ⁇ ′ dioctinole diphenylenamine, alkylated diphenylamine, and the like.
- the phenylene Renjiamin acids specifically, New, New '- Jifue two Lou [rho - off Enirenjiamin, .eta. isopropyl one New' one Fueninore ⁇ - phenylene Renjiami down, New, New '- di one 2- Nafuchiru ⁇ -Phenylenediamine, ⁇ -cyclohexyl ⁇ '—Pheninolep ⁇ -Phenylenediamine, ⁇ -Fenilou ⁇ ' — (3-Methacryloyloxy-1-hydroxypropyl): ⁇ — Phenylenediamine, ⁇ , ⁇ '-bis (1-methylheptyl) - ⁇ -phenylenediamine, ⁇ , ⁇ '-bis (1,4-dimethylpentyl) - ⁇ -phenylenediamine, ⁇ , ⁇ '-bis (1-ethyl-3 -methylpentyl) 1: -phenylened
- 4,4 '-(a, CK-dimethynolebenzinole) diphenylamine and ⁇ , ⁇ '-G2-naphthyl_ ⁇ -phenylenediamine are particularly preferred.
- hindered phenol-based antioxidant used in the present invention conventionally known ones can be used without limitation.
- zeolite antiaging agent used in the present invention examples include zeolite antiaging agents commonly used in rubber.
- 2-mercaptobenzoimidazole zinc salt of 2-mercaptobenzimidazole, 2-mercaptomethylbenzimidazole, zinc salt of 2-mercaptomethylbenzimidazole, 2-mercaptomethyl Imidazole antioxidants such as zinc salt of imidazole;
- Aliphatic thioethers such as dimyristyl thiodipropionate, dilauryl thiodipropionate, distearyl thiodipropionate, ditridecyl thiodipropionate, pentaerythritol monotetrakisux (—lauryl monothiopropionate) Examples include a dani prevention agent.
- 2-mercaptobenzoimidazole zinc salt of 2_mercaptobenzoimidazole, 2-mercaptomethylbenzoimidazole, zinc salt of 2-mercaptomethylbenzoimidazole, pentaerythritol-tetrakisux (3- Lauryl monothiophene) is preferred.
- a compound used for normal processing of rubber can be used.
- higher fatty acids such as ricinoleic acid, stearic acid, palmitic acid, and lauric acid
- salts of higher fatty acids such as parium stearate, zinc stearate, and calcium stearate
- Such a processing aid is usually used in a proportion of not more than 10 parts by weight, preferably not more than 5 parts by weight, based on 100 parts by weight of the ethylene ' ⁇ -olefin' non-conjugated polystyrene copolymer ( ⁇ ). However, it is desirable to determine the optimal amount appropriately according to the required physical properties.
- both the addition crosslinking and the radical crosslinking may be performed by using an organic peroxide in addition to the above-mentioned catalyst (F).
- the organic peroxide is ethylene 'G! -Olefin-non-conjugated polyene copolymer (A).
- organic peroxide Used at a ratio of about 0 parts by weight.
- organic peroxide a conventionally known organic peroxide which is usually used at the time of rubber crosslinking can be used.
- vulcanization aids include: quinone dioxime compounds such as p-quinone dioxime; methacrylate compounds such as polyethylene dalicol dimethacrylate; aryl compounds such as diaryl phthalate and triaryl cyanurate. Maleimide compounds; dibutylbenzene and the like.
- a vulcanization aid is used in an amount of 0.5 to 2 mol, preferably about equimolar, per mol of the organic peroxide used. '
- One preferred embodiment is to crosslink using (E), (F), (G) and other components as described above.
- the foam obtained by using the pellet of the present invention is not particularly limited in terms of expansion ratio, but a low foamed product of 1 to 4 times and a high foamed product of 4 to 50 times are practically or industrially used. It is suitable for general production.
- the pellet of the present invention can be used, for example, for crosslinked rubber.
- the term “for crosslinked rubber” used herein is a synonym for Vulcanized rubber in IS01392 (1996) 373, and means a thermosetting elastomer.
- (B) is about 1 to 150 parts by weight with respect to (A) 100 parts by weight, preferably 5 parts by weight, and 130 parts by weight, more preferably. Is 100 parts by weight.
- An example of a preferred range is: It is preferably from 50 to 50 parts by weight, particularly preferably from 10 to 30 parts by weight.
- (C) is from 0 to 30 parts by weight, and the upper limit is preferably 20 parts by weight, more preferably 10 parts by weight. It is also a preferred embodiment that there is no (C).
- the pellets When used for crosslinked rubber, the pellets are preferably spherical, cylindrical, prismatic, or sponge-shaped, and preferably have an aspect ratio of 2-1.
- the size is preferably 3 to 5 Omm, more preferably 5 to 30 mm, and particularly preferably 5 to 2 Omm.
- the pellet of the present invention can also be used, for example, for a cross-linking type resin modifier.
- cross-linked resin modifier used herein is used by being mixed with a resin and cross-linked for the purpose of improving the performance of the resin.
- DC PD resin, ABS resin, AES resin, and HI PS resin have become widespread as resins with improved impact resistance of AS resin and PS resin. These are rubber mixed during polymerization of AS resin and PS resin.
- the rubber used here is both a bridge-type resin modifier and a raw material for AES (polymerization-type cross-linkable resin modifier).
- TPO which is a thermoplastic elastomer mixed with polypropylene and EPDM and further dynamically crosslinked
- EPDM used here modifies the impact resistance and rubber elasticity of PP resin, and is a raw material of TPO as well as a crosslinkable resin modifier.
- (B) is preferably 0 to 20 parts by weight, more preferably 0 to 10 parts by weight, particularly preferably 0 parts by weight, per 100 parts by weight of (A).
- (C) is preferably from 0 to 20 parts by weight, more preferably from 0 to: L 0 parts by weight, particularly preferably 0 parts by weight, based on 100 parts by weight of (A). .
- the shape of the pellets in this case is preferably spherical, cylindrical, or prismatic, and preferably has an aspect ratio of 2-1.
- the size is preferably from 0.1 to 10 mm, more preferably from 1 to 1 Omm, and particularly preferably from 1 to 5 mm.
- the above-mentioned pellets of the quantity ratio of (A), (B) and (C) may be used, but (A) with respect to 100 parts by weight.
- ( ⁇ ) is, for example, 1 to 150 parts by weight, preferably 5 to 100 parts by weight, more preferably 10 to 100 parts by weight, and still more preferably 20 to 80 parts by weight. In some embodiments, a proportion of 40 to 60 parts by weight can be used.
- (C) is used in an amount of 30 parts by weight or less, preferably 10 to 30 parts by weight, more preferably 20 to 30 parts by weight, per 100 parts by weight of ( ⁇ ). An embodiment in which (C) is not contained at all is also a preferable embodiment.
- the pellet is preferably spherical, cylindrical, or prismatic, and preferably has an aspect ratio of 2-1.
- the size is preferably 1 to 2 Omm, more preferably 2 to 8 mm, and particularly preferably 4 to 8 mm.
- preferred applications include, for example, weather strips for automobiles; hoses for automobiles, hoses for water supply, and gas hoses; anti-vibration rubber for automobiles, anti-vibration rubber for railways, anti-vibration rubber for industrial machinery Power transmission belts, conveyor belts; automotive cups; sealing materials, sealing materials for industrial machinery; automotive strip strips, automotive sealing sponges or other foams; coated electric wires, electric wire joints , Electrical insulation parts, semiconductive rubber parts; rolls for OA equipment, industrial rolls; household rubber products.
- a polymerization type cross-linking resin modifier it is preferably used as a raw material for AES resin.
- thermoplastic elastomers such as TPO
- thermoplastic elastomer When the thermoplastic elastomer is used as a raw material, the method for producing the thermoplastic elastomer can be exemplified by the method described in JP-A-11-335501.
- the pellets of the present invention are used for modifying various resins or for producing the above-mentioned thermoplastic elastomer, a resin excellent in dispersibility of the ethylene ("monoolefin" non-conjugated polyene copolymer (A) component)
- the composition or the thermoplastic elastomer can be produced with good workability and work efficiency.
- thermoplastic elastomer can be produced by performing dynamic crosslinking using the above-mentioned ethylene / ⁇ -olefin ′ non-conjugated polystyrene copolymer composition pellet.
- the ethylene ⁇ -olefin of the present invention When dynamically crosslinking using a non-conjugated polystyrene copolymer composition pellet, the pellet, a thermoplastic resin such as a polyolefin resin, if necessary, and a plasticizer, if necessary, It can be dynamically heat treated in the presence to obtain a thermoplastic elastomer.
- the other components described above are blended in the production of the thermoplastic elastomer, the other components are added and kneaded to the ethylene / ct-olefin / non-conjugated polystyrene copolymer composition by the above method.
- a method of adjusting the composition pellet containing other components may be used.
- the other components can be compounded using a kneading device such as a mixing roll, an intensive mixer (eg, Banbury mixer, kneader, etc.), a single screw or twin screw extruder. Among them, twin-screw extruders are preferred from the viewpoint of dispersibility and throughput per unit time.
- the dynamic heat treatment (also referred to as dynamic crosslinking) comprises the step of adding the crosslinking agent to ethylene pellets of a non-conjugated poly (ethylene copolymer) and optionally a crosslinking agent.
- thermoplastic resin such as a polyethylene, a polyolefin resin if necessary, and a plasticizer, if necessary, in a molten state.
- This dynamic heat treatment can be carried out using a kneading device such as a mix mill, an intensive mixer (eg, Banbury mixer, kneader, etc.), a single screw or twin screw extruder. Among them, a twin-screw extruder is preferable from the viewpoint of dispersibility and a throughput per unit time. In the present invention, it is preferable that the pellets are continuously supplied to a melt kneader to perform dynamic crosslinking.
- thermoplastic resin such as polyolefin used as needed, a plasticizer used as needed, and the like are not kneaded with the pellets in advance, but are simply mixed with the pellets.
- the components are mixed or separately supplied to a kneading device such as a twin screw extruder to perform dynamic crosslinking.
- the dynamic heat treatment (dynamic crosslinking) is preferably performed in a non-open kneading apparatus in an inert gas such as nitrogen.
- an inert gas such as nitrogen.
- the pellets are continuously supplied to a melt kneader to perform dynamic crosslinking.
- Table 1 shows the physical properties of the ethylene / propylene / 5-butyl-2-norbornene random copolymer rubber (A-1) obtained as described above.
- composition iodine value, intrinsic viscosity [77], molecular weight distribution (Mw / Mn), and branching index of the obtained copolymer rubber were measured or determined by the following methods.
- Table 1 shows the physical properties of the obtained copolymer rubber.
- composition of the copolymer rubber was measured by 13 C-NMR method.
- the iodine value of the copolymer rubber was determined by a titration method.
- the intrinsic viscosity [77] of the copolymer rubber was measured in decalin at 135 ° C.
- the branching index is the average branching index (BI) and was calculated from the numerical values obtained from the following three experiments.
- MWULLS Weight average molecular weight measured using gel angle permeation chromatography (GPC) followed by small angle light scattering (LALLS) 3 ⁇ 4f Measurements were made using a LAL LS detector connected to a GPC instrument.
- the average bifurcation index (B I) is defined as 7 fires.
- Mv br k (IV) 1 m
- Mv br is the viscosity average molecular weight of the branched polymer
- a is the Mark-Howink constant
- k is , Mark—Ho uwink—A constant obtained from the coefficient K in the Sakurada equation.
- a can be obtained, for example, by referring to a polymer handbook.
- k is the formula of Ma rk—Ho uw in kS akurada
- the hexane solvent content of the (A-1) copolymer rubber solution produced by the solution polymerization method according to Production Example A-1 was adjusted to an amount of 7 parts by weight based on 100 parts by weight of this rubber.
- a rubber composition containing a solvent was obtained.
- This rubber composition is introduced into a twin-screw, three-stage vent-type extruder to remove the solvent, and the obtained rubber is cut into a pellet at the tip of the extruder, and the (A-1) copolymer rubber is extruded.
- a pellet (A-l-1) was obtained.
- pellets of (A-1) copolymer rubber (A-1-1) showed little adhesion between pellets.
- the pellet (A-1-1) of the ethylene copolymer rubber (A-1) had a rating of 4.
- 100 parts by weight of the obtained ethylene copolymer rubber (A-1) pellets (A-111), 100 parts by weight, Rikiichi pump rack [Asahi Carbon Co., Ltd., trade name Asahi 60G] 100 parts by weight Parts, plasticizer [manufactured by Idemitsu Kosan Co., Ltd., trade name: Diana Process Oil TMPW-90: crosslinking inhibition rate 1%,] 50 parts by weight, SiH group-containing compound represented by the structural formula (1) (crosslinking agent 4 parts by weight, manufactured by Shin-Etsu Chemical Co., Ltd., trade name: X-93-1346, was kneaded with a 2.95 liter capacity Banbury mixer [manufactured by Kobe Steel Ltd.]. .
- the kneading method is as follows. First, the obtained ethylene copolymer rubber (A-1) pellets (A-1-1) are masticated for 30 seconds, and then carbon black, a crosslinking agent, and a plasticizer are added. And kneaded for 2 minutes. Thereafter, the ram was raised and cleaned, and further kneaded for 1 minute, and discharged at about 130 ° C to obtain a rubber compound. This kneading was performed at a filling rate of 75%.
- 1,3,5,7-Tetramethylcyclotetrasiloxane complex 1,3,5,7-Tetrabutyl 1,3,5,7-tetramethylcyclotetracyxane complex with 2% platinum (0 valence) concentration- 0.075 parts by weight of I PA ⁇ PA [manufactured by N.C.-Chem'Kat Co., Ltd.] was added, and the mixture was kneaded for 5 minutes.
- the dispersibility of the ribbon-shaped uncrosslinked rubber composition was measured.
- the cross section of the ribbon-shaped uncrosslinked composition was cut, and the state of bubbles on the cut surface was observed.
- the cross section has a push
- U HF vulcanization tank (Microwave vulcanization tank (Microelectronics Co., Ltd., MCV ⁇ 60ER_2)) Crosslinking was performed for 1 minute under the conditions of microphone mouth wave output of 6 KW using the above method to obtain a crosslinked product, at which time the rubber temperature at the microwave outlet was 210 ° C.
- the obtained crosslinked product was subjected to a compression set test and a crosslinkability evaluation in oxygen according to the following methods. Table 2 shows the results.
- the SiH group-containing compound (crosslinking agent) used in Comparative Example 1-1 was used [Shin-Etsu Chemical Co., Ltd. , Trade name X-93-1346], and a reaction control agent (1-Ethyl-1-cyclohexanol) and a catalyst (platinum-1,3,5,7-tetrabutyl 1,3,5,7) -Tetramethylcyclotetracyxane complex: 1,3,5,7-tetrabutyl 1,3,5,7-tetramethylcyclotetrasiloxane complex-IPA solution with 2% platinum (0 valence) concentration [N.
- the rubber composition is introduced into a twin-screw, three-stage vented extruder to remove the solvent, and the obtained rubber is cut into a pellet at the tip of the extruder, and A-2 copolymer rubber pellets (A —2— 1) was obtained.
- Table 2 shows the results of evaluating the pellet blocking performance of this pellet (A-2-1). The rating was 3, which was at a level that could be handled as pellets.
- A-2 copolymer rubber solution (100 parts by weight of rubber, plasticizer [manufactured by Idemitsu Kosan Co., Ltd., trade name: Diana Process Oil TM PW-380] manufactured by solution polymerization method according to Production Example A-2
- the hexane solvent content of the rubber composition was adjusted to 7 parts by weight based on 100 parts by weight of the rubber. Parts by weight were obtained.
- the rubber composition is introduced into a twin-screw three-stage vented extruder to remove the solvent, and the obtained rubber is cut into a pellet at the tip of the extruder to obtain a pellet of A-2 copolymer rubber.
- thermoplastic resin polypropylene, manufactured by Mitsui Chemicals, Inc., trade name: E121WA
- the mixture was kneaded with an extruder and granulated to obtain a pellet (A-2-2) of 140 parts by weight of an ethylene copolymer rubber composition.
- Table 2 shows the results of evaluating the pellet blocking performance of the pellet (A-2-2).
- pellets (A—) of the ethylene copolymer rubber composition used in Comparative Example 1-1 were used.
- Oil extension, phKB 0 0 20 20 20 0
- Copolymer 100 (A-1) ⁇ (A-1) 120CA-2) 140 (A-2) 120 (A-3) 100 (A-1) Force-Horn rack [Asahi # 60G] 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
- Plasticizer [PW-380] 50 50 30 30 30 30 50
- A-3 copolymer rubber solution (100 parts by weight of rubber, plasticizer manufactured by Idemitsu Kosan Co., Ltd., trade name: Diana Process Oil TM PW-380: cross-linking inhibition rate) produced by a solution polymerization method according to Production Example A-3 [1%] 20 parts by weight) was adjusted to 7 parts by weight with respect to 100 parts by weight of the rubber to obtain 127 parts by weight of a rubber composition containing a hexane solvent. .
- This rubber composition is introduced into a twin-screw three-stage vented extruder to remove the solvent, and the obtained rubber is cut into a pellet at the tip of the extruder, and pellets of A-3 copolymer rubber (A -3-1) was obtained. '
- Table 2 shows the results of evaluating the pellet blocking performance.
- the above copolymer rubber (A —3) Dispersibility of uncrosslinked rubber, compression set of crosslinked rubber, and oxygen content in the same manner as in Example 1-1, using 120 parts by weight of pellets (A-3-1) in the formulation shown in Table 2. Was evaluated for crosslinkability. Table 2 shows the results.
- Ethylene copolymer rubber (A-1) pellets (A-1-1) obtained in Comparative Example 1-1 were 90. .
- the sample was pressurized under the conditions of 5 MPa to produce a 10 cm ⁇ 10 cm ⁇ 10 cm bell.
- Uncrosslinked rubber was obtained in the same manner as in Example 1-1 except that 100 parts by weight of the ethylene copolymer rubber composition obtained in Example 1-1 was used instead of 100 parts by weight of the pellet.
- a catalyst platinum-1,3,5,7-tetrabutyl 1,3,5,7-tetramethylcyclotetrasiloxane complex: 1,3,5,7-tetravinyl 1% with 2% platinum (0 valence) concentration
- 3,5,7-Tetramethylcyclotetrasiloxane complex-I PA solution [manufactured by N.K.Chem Cat Co., Ltd.]
- the solution was plasticized at a rate of 60 g / h from the fifth barrel liquid injection nozzle.
- the agent was fed at a rate of 24 kg / h from the liquid injection nozzle of the ninth barrel, and a pellet of an olefin-based thermoplastic elastomer composition was prepared by a dynamic crosslinking method.
- thermoplastic elastomer pellets were evaluated according to the following methods. Table 3 shows the results. (8) Evaluation of dispersibility of thermoplastic elastomer
- the morpho-mouth of the cross section of the pellet was observed with a microscope and classified into the following five stages. 5: The island phase is dispersed below 3 ⁇
- the island phase is dispersed in 3 to 10 ⁇
- the island phase is dispersed in 10 to 50 ⁇
- thermoplastic elastomer (9) Compression set test of thermoplastic elastomer The resulting pellet of thermoplastic elastomer was molded into 2111111 sheets at 180 and cooled. The obtained sheets were laminated and subjected to a compression set test in accordance with JIS K6262. The test conditions are 70 ° C X 22 hrs. [Comparative Example 2-2] 3
- Comparative Example 1 using an 2 Like copolymer pellet (A-1- 1) Comparative Example 1 one 2 C 6 H 5 - S i ( OS i (CH 3) 2 H) 3 0. 5 parts by weight , 1-Ethyl-1 _ Cyclohexanol 0.1 part by weight was not blended, and the catalyst (platinum-1,3,5,7-tetrabule 1,3,5,7-tetramethylcyclotetracyoxaxane complex : 1,3,5,7-tetrabutyl 1,3,5,7-tetramethynole cyclotetrasiloxane complex I PA solution with a 2% white gold (zero valence) concentration [N.I.K.M.
- Copolymer 70 (A-1) 70 84 CA-2) 98 (A-2) 84 (A-3)
- the copolymer (A-2) pellets (A-2-2) 98 parts by weight, polypropylene tree lumber [Menoleto flow rate (ASDM D 1238, 230 ° C, 2.16 kg load) is 2. Og / 10 min, isotactic fraction of boiling heptane-insoluble part: 0.965, content of boiling heptane-insoluble part: 6.8 parts by weight]]
- a catalyst platinum-1,3,5,7-tetrabutyl 1,3,5,7-tetramethinolecyclotetrasiloxane complex: 1,3,5,7-tetrabiyl at 2% platinum (0 valence) concentration
- Dil 1,3,5,7-tetramethylcyclotetrasiloxane complex—IpA solution [N.I.Chem 'Cat Co., Ltd.]
- the plasticizer was fed at a rate of 13.6 kg / h from the liquid injection nozzle of the ninth barrel at a rate of h, and pellets of an olebuin-based thermoplastic elastomer composition were prepared by a dynamic crosslinking method.
- the dispersibility and compression set of the thermoplastic elastomer were evaluated. Table 3 shows the results.
- Random copolymer rubber (A-3) pellets (A-3-1) instead of 120 parts by weight Except for using 120 parts by weight, the same procedure as in Example 1-2 was carried out to evaluate the dispersibility and compression set of the thermoplastic elastomer. Table 3 shows the results. INDUSTRIAL APPLICABILITY
- the pellets comprising the ethylene / polyolefin 'non-conjugated polyene copolymer according to the present invention have less blocking and excellent cross-linking reactivity despite containing a plasticizer. It is particularly suitable for the production of thermoplastic elastomers. Further, the pellets according to the present invention contain a small amount or no thermoplastic resin component. Even if it does not, because of its excellent blocking properties, there is great design flexibility when designing materials further using pellets.
- thermoplastic elastomer excellent in compression set and dispersibility can be efficiently produced by an economical method.
- it can be manufactured continuously using a twin-screw extruder, and is industrially excellent.
- a copolymer having a carbon-carbon double bond having a low degree of crystallinity, not blocking, and excellent crosslinking reactivity is provided.
- a polymer bellet can be obtained.
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04720168A EP1605015B1 (en) | 2003-03-18 | 2004-03-12 | PELLET COMPRISING ETHYLENE-a-OLEFIN-NON-CONJUGATED POLYENE COPOLYMER, METHOD FOR PRODUCING THERMOPLASTIC ELASTOMER AND METHOD FOR PRODUCING PELLET COMPRISING ETHYLENE-a-OLEFIN-NON-CONJUGATED POLYENE COPOLYMER |
US10/543,593 US20060142437A1 (en) | 2003-03-18 | 2004-03-12 | Pellet comprising ethylene-alpha-olefin-non-conjugated polyene copolymer, method for producing thermoplastic elastomer, and method for producing pellet comprising ethylene-alpha-olefin-non-conjugated polyene copolymer |
JP2005503662A JPWO2004083299A1 (ja) | 2003-03-18 | 2004-03-12 | エチレン・α−オレフィン・非共役ポリエン共重合体からなるペレット、熱可塑性エラストマーの製造方法、エチレン・α−オレフィン・非共役ポリエン共重合体からなるペレットの製造方法 |
Applications Claiming Priority (2)
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JP2003074630 | 2003-03-18 | ||
JP2003-74630 | 2003-03-18 |
Publications (1)
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WO2004083299A1 true WO2004083299A1 (ja) | 2004-09-30 |
Family
ID=33027845
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PCT/JP2004/003267 WO2004083299A1 (ja) | 2003-03-18 | 2004-03-12 | エチレン・α−オレフィン・非共役ポリエン共重合体からなるペレット、熱可塑性エラストマーの製造方法、エチレン・α−オレフィン・非共役ポリエン共重合体からなるペレットの製造方法 |
Country Status (6)
Country | Link |
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US (1) | US20060142437A1 (ja) |
EP (1) | EP1605015B1 (ja) |
JP (1) | JPWO2004083299A1 (ja) |
KR (1) | KR100700396B1 (ja) |
CN (1) | CN100374496C (ja) |
WO (1) | WO2004083299A1 (ja) |
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JP2008174733A (ja) * | 2006-12-21 | 2008-07-31 | Sumitomo Chemical Co Ltd | オレフィン系熱可塑性エラストマーの製造方法 |
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JP2014136729A (ja) * | 2013-01-16 | 2014-07-28 | Shin Etsu Chem Co Ltd | 表面滑り性を有するポリオレフィン系ゴム組成物 |
JP2014208740A (ja) * | 2013-03-29 | 2014-11-06 | 三井化学株式会社 | ゴム組成物ペレット |
CN106062019A (zh) * | 2014-02-14 | 2016-10-26 | 三井化学株式会社 | 乙烯‑α‑烯烃‑非共轭多烯共聚物、其制造方法以及用途 |
JP7429267B2 (ja) | 2017-06-29 | 2024-02-07 | ダウ グローバル テクノロジーズ エルエルシー | 照射硬化性ポリオレフィン配合物 |
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US9416242B2 (en) * | 2012-09-28 | 2016-08-16 | Sekisui Chemical Co., Ltd. | Foamable composition |
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EP1905799A4 (en) * | 2005-06-30 | 2009-06-03 | Nok Corp | RUBBER COMPOSITION AND USE THEREOF |
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JP2008184576A (ja) * | 2007-01-31 | 2008-08-14 | Sumitomo Chemical Co Ltd | エチレン−α−オレフィン−ポリエン共重合体組成物の製造方法 |
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JP2014208740A (ja) * | 2013-03-29 | 2014-11-06 | 三井化学株式会社 | ゴム組成物ペレット |
CN106062019A (zh) * | 2014-02-14 | 2016-10-26 | 三井化学株式会社 | 乙烯‑α‑烯烃‑非共轭多烯共聚物、其制造方法以及用途 |
US10131726B2 (en) | 2014-02-14 | 2018-11-20 | Mitsui Chemicals, Inc. | Ethylene/α-olefin/non-conjugated polyene copolymer, and production process and use thereof |
CN106062019B (zh) * | 2014-02-14 | 2019-02-26 | 三井化学株式会社 | 乙烯-α-烯烃-非共轭多烯共聚物、其制造方法以及用途 |
US10435494B2 (en) | 2014-02-14 | 2019-10-08 | Mitsui Chemicals, Inc. | Ethylene/α-olefin/non-conjugated polyene copolymer, and production process and use thereof |
JP7429267B2 (ja) | 2017-06-29 | 2024-02-07 | ダウ グローバル テクノロジーズ エルエルシー | 照射硬化性ポリオレフィン配合物 |
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US20060142437A1 (en) | 2006-06-29 |
EP1605015B1 (en) | 2009-02-25 |
KR100700396B1 (ko) | 2007-03-28 |
CN100374496C (zh) | 2008-03-12 |
CN1761712A (zh) | 2006-04-19 |
KR20050102630A (ko) | 2005-10-26 |
JPWO2004083299A1 (ja) | 2006-06-22 |
EP1605015A1 (en) | 2005-12-14 |
EP1605015A4 (en) | 2006-05-24 |
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