KR960031518A - Polyolefin-based crosslinked foam - Google Patents

Polyolefin-based crosslinked foam Download PDF

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KR960031518A
KR960031518A KR1019960002894A KR19960002894A KR960031518A KR 960031518 A KR960031518 A KR 960031518A KR 1019960002894 A KR1019960002894 A KR 1019960002894A KR 19960002894 A KR19960002894 A KR 19960002894A KR 960031518 A KR960031518 A KR 960031518A
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polyolefin
crosslinked foam
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나리오 우에쥬오코쿠
유키나리 나카쯔
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마에다 카츠노수케
토오레 카부시키가이샤
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
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    • 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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    • 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
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    • C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
    • C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
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    • 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
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    • C08L2207/00—Properties characterising the ingredient of the composition
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    • C08L2308/00—Chemical blending or stepwise polymerisation process with the same catalyst

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Abstract

본 발명은 폴리올레핀계 수지에 특정의 제조, 특정특성을 보유하는 수지를 혼합하여, 가교상태를 제어하고 광범위한 가교도에서 완충성, 충격흡수성, 진동흡수성을 만족하는 폴리올레핀계 전자선 가교발포체를 제공하는 것을 목적으로 한다.It is an object of the present invention to provide a polyolefin-based electron beam crosslinked foam which is produced by mixing a resin having specific properties and specific characteristics with a polyolefin resin, controlling the crosslinking state and satisfying the buffering property, impact absorbing property and vibration absorbing property in a wide range of degrees of crosslinking .

100중량부의 폴리올레핀계 수지(A)와 10~100중량부의 공역 디엔계 중합체로 이루어지며 10~50%의 충격흡수성과 0.1% 또는 그 이상의 진동흡수성을 보유한다.100 parts by weight of a polyolefin resin (A) and 10 to 100 parts by weight of a conjugated diene polymer, having 10 to 50% of impact absorbing property and 0.1% or more of vibration absorbing property.

Description

폴리올레핀계 가교발포체Polyolefin-based crosslinked foam

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

Claims (35)

충격흡수성이 10~50%이고, 진동흡수성이 0.1% 또는 그 이상인 것을 기본적인 구조로 구성하고, 100중량부의 폴리올레핀계 수지(A)와, 10~100중량부의 공역 디엔계 중합체(B)는 동적 점탄성 계수에서 -20℃와 40℃ 사이의 온도범위에서 tan δ의 정점이 얻어지는 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.100 parts by weight of a polyolefin resin (A) and 10 to 100 parts by weight of a conjugated diene polymer (B) each having a dynamic viscoelasticity (B) of 10 to 50% and a vibration absorbing property of 0.1% A polyolefin-based crosslinked foam excellent in impact and vibration absorbability in which a peak of tan delta is obtained in a temperature range of -20 ° C to 40 ° C in coefficient. 제1항에 있어서, 폴리올레핀계 수지(A)가 폴리프로필렌계 수지로 구성되는 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 1, wherein the polyolefin-based resin (A) is composed of a polypropylene-based resin and is excellent in impact and vibration absorbability. 제2항에 있어서, 폴리프로필렌계 수지가 125~165℃의 용융점과 0.5~20g/10분의 MFR을 보유하는 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 2, wherein the polypropylene resin has a melting point of 125 to 165 캜 and an MFR of 0.5 to 20 g / 10 min. 제2항에 있어서, 폴리프로필렌계 수지는 원자수가 4~12의 α-폴리올레핀이 2~15중량%의 프로필렌 공중합체나, 에틸렌 2~15중량%을 보유한 프로필렌 공중합체로 되는 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polypropylene resin according to claim 2, wherein the polypropylene resin is a propylene copolymer having 2 to 15% by weight of an? -Olefin having 4 to 12 atoms and a propylene copolymer having 2 to 15% by weight of ethylene, Excellent polyolefin crosslinked foam. 제1항에 있어서, 폴리올레핀계 수지(A)가 70~135℃의 용융점과 0.5~10g/10분의 MFR을 보유하는 폴리에틸렌계 수지로 구성되는 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 1, wherein the polyolefin-based resin (A) is composed of a polyethylene-based resin having a melting point of 70 to 135 캜 and an MFR of 0.5 to 10 g / 10 min. 제1항에 있어서, 폴리올레핀계 수지(A)가 폴리프로필렌계 수지(a)와, 폴리에틸렌계 수지(b)로 구성되며, 그것의 중량비인 (a)/〔(a)+(b)〕가 0.2~0.8인 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin resin (A) according to claim 1, wherein the polyolefin resin (A) is composed of a polypropylene resin (a) and a polyethylene resin (b) A polyolefin-based crosslinked foam excellent in impact and vibration absorbability of 0.2 to 0.8. 제1항에 있어서, 가교감소가 15~80%이고, 팽창비가 2~40인 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 1, wherein the crosslinking reduction is 15 to 80% and the swelling ratio is 2 to 40. 제7항에 있어서, 가교감소가 25~70%이고, 팽창비가 5~40인 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 7, wherein the crosslinking reduction is 25 to 70% and the swelling ratio is 5 to 40. 제1항에 있어서, 가교발포체가 70~165℃의 융점과, 0.5~20g/10분의 MFR을 보유하는 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 1, wherein the crosslinked foam has excellent melting point and a MFR of 0.5 to 20 g / 10 min. 제9항에 있어서, 가교발포체가 125~155℃의 융점과, 0.5~10g/10분의 MFR을 보유하는 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 9, wherein the crosslinked foam has excellent melting points and a MFR of 0.5 to 10 g / 10 min. 제1항에 있어서, 공역 디엔계 중합체가 스틸렌 이소프렌 블록공중합체로 구성된 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 1, wherein the conjugated diene polymer is composed of a styrene isoprene block copolymer and is excellent in impact and vibration absorbability. 제1항에 있어서, 성형성이 0.4 또는 그 이상인 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 1, which is excellent in impact and vibration absorbability with a moldability of 0.4 or more. 제1항에 있어서, 120℃에 대한 열저항비가 5% 또는 그 이하인 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 1, wherein the thermal resistance ratio to 120 캜 is 5% or less. 제1항에 있어서, 공역 디엔계 중합체가 30000~300000의 수평균분자량을 보유한 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 1, wherein the conjugated diene polymer has a number average molecular weight of 30,000 to 300,000 and is excellent in impact and vibration absorbability. 제1항에 있어서, 반응혼합물에 가교제(C) 0.5~10중량부를 더 포함하는 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 1, further comprising 0.5 to 10 parts by weight of a crosslinking agent (C) in the reaction mixture. 제15항에 있어서, 가교제가 반응성 이중결합분자를 2개 또는 그 이상 보유하고 있는 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 15, wherein the crosslinking agent has two or more reactive double bond molecules. 제1항에 있어서, 가교발포체가 전자선 가교발포체인 충격, 진동흡수성이 우수한 폴리올레핀계 가교발포체.The polyolefin-based crosslinked foam according to claim 1, wherein the crosslinked foam is an electron beam crosslinked foam and is excellent in impact and vibration absorbability. 폴리올레핀계 수지와 공역 디엔계 중합체가 -20℃~40℃ 사이의 동적 점탄성 계수에 의해 tan δ의 정점이 얻어지는 것을 기본구조로 하는 가교발포체.Wherein the polyolefin-based resin and the conjugated diene-based polymer have a peak at a peak of tan delta due to a dynamic viscoelastic coefficient between -20 DEG C and 40 DEG C. 10~50%의 충격흡수성과, 0.1% 또는 그 이상의 진동흡수성(C/Cc)으로 구성되고, (a) 혼합된 100중량부의 폴리올레핀계 수지(A)와 10~100중량부의 공역 디엔계 가교발포체(B)가 -20℃~40℃ 사이에서 동적 점탄성 계수에 의해 tan δ의 정점을 얻어, (b) 발포체를 혼합하는 충격, 진동흡수성이 우수한 가교발포체 제조방법.(A) 100 parts by weight of a polyolefin-based resin (A) and 10 to 100 parts by weight of a conjugated diene-based crosslinked foamed product (A) having an impact absorbing property of 10 to 50% and a vibration absorbing property (B) obtaining a peak of tan delta by dynamic viscoelasticity coefficient between -20 deg. C and 40 deg. C, and (b) mixing the foams. 제19항에 있어서, 폴리올레핀계 수지(A)가 폴리프로필렌계 수지로 구성된 가교발포체 제조방법.The method for producing a crosslinked foam according to claim 19, wherein the polyolefin resin (A) comprises a polypropylene resin. 제20항에 있어서, 폴리프로필렌계 수지가 125~165℃의 융점과 0.5~20g/10분의 MFR을 보유하는 가교발포체 제조방법.21. The process for producing a crosslinked foam according to claim 20, wherein the polypropylene resin has a melting point of 125 to 165 DEG C and an MFR of 0.5 to 20 g / 10 min. 제2항에 있어서, 폴리프로필렌계 수지는 원자수가 4~12의 α-올레핀이 2~15중량%의 프로필렌 공중합체 또는 에틸렌을 보유하는 프로필렌 공중합체로 되는 가교발포체 제조방법.The method for producing a crosslinked foamed product according to claim 2, wherein the polypropylene resin comprises a propylene copolymer having 2 to 15% by weight of an? -Olefin having 4 to 12 atoms and ethylene or a propylene copolymer having ethylene. 제19항에 있어서, 폴리올레핀계 수지(A)가 70~135℃의 융점과 0.5~10g/10분의 MFR을 보유하는 폴리에틸렌계 수지로 구성되는 가교발포체 제조방법.The method for producing a crosslinked foamed product according to claim 19, wherein the polyolefin-based resin (A) is composed of a polyethylene-based resin having a melting point of 70 to 135 캜 and an MFR of 0.5 to 10 g / 10 min. 제19항에 있어서, 폴리올레핀계 수지(A)는, 폴리프로필렌계 수지(a)와 폴리에틸렌계 수지(b)의 중량비 (a)/〔(a)+(b)〕가 0.2~0.8로 구성되는 가교발포체 제조방법.The polyolefin resin (A) according to claim 19, wherein the polyolefin resin (A) has a weight ratio (a) / (a) + (b) of the polypropylene resin (a) and the polyethylene resin A method for producing a crosslinked foam. 제19항에 있어서, 가교감소가 15~80%이고, 팽창비가 2~40인 가교발포체 제조방법.The process for producing a crosslinked foam according to claim 19, wherein the reduction in crosslinking is 15 to 80% and the expansion ratio is 2 to 40. 제25항에 있어서, 가교감소가 25~70%이고, 팽창비가 5~40인 가교발포체 제조방법.26. The process of claim 25, wherein the reduction in crosslinking is 25 to 70% and the expansion ratio is 5 to 40. 제19항에 있어서, 가교발포체가 70~165℃의 융점과 0.5~20g/10분의 MFR을 보유하는 가교발포체 제조방법.20. The method of claim 19, wherein the crosslinked foam has a melting point of 70 to 165 DEG C and a MFR of 0.5 to 20 g / 10 minutes. 제27항에 있어서, 가교발포체가 125~155℃의 융점과 0.5~20g/10분의 MFR을 보유하는 가교발포체 제조방법.28. The process of claim 27, wherein the crosslinked foam has a melting point of 125 to 155 占 폚 and a MFR of 0.5 to 20 g / 10 minutes. 제19항에 있어서, 공역 디엔계 중합체가 스틸렌 이소프렌 블록공중합체로 구성되는 가교발포체 제조방법.20. The method of producing a crosslinked foamed product according to claim 19, wherein the conjugated diene polymer is composed of a styrene isoprene block copolymer. 제19항에 있어서, 성형성이 0.4 또는 그 이상인 가교발포체 제조방법.The process for producing a crosslinked foam according to claim 19, wherein the moldability is 0.4 or more. 제19항에 있어서, 120℃에 대한 열저항력이 5% 또는 그 이하인 가교발포체 제조방법.20. The process of claim 19, wherein the thermal resistance to 120 占 폚 is 5% or less. 제19항에 있어서, 공역 디엔계 중합체가 30000~300000의 수평균분자량을 보유하는 가교발포체 제조방법.20. The process for producing a crosslinked foam according to claim 19, wherein the conjugated diene polymer has a number average molecular weight of 30,000 to 300,000. 제19항에 있어서, 반응혼합물에 가교제(C) 0.5~10중량부를 더 포함하는 가교발포체 제조방법.The process for producing a crosslinked foam according to claim 19, further comprising 0.5 to 10 parts by weight of a crosslinking agent (C) in the reaction mixture. 제19항에 있어서, 가교제가 반응성 이중결합분자를 2개 또는 그 이상 보유하는 가교발포체 제조방법.20. The method of claim 19, wherein the crosslinking agent has two or more reactive double bond molecules. 제19항에 있어서, 가교발포체가 전자선 가교발포체인 가교발포체 제조방법.20. The method of claim 19, wherein the crosslinked foam is an electron beam crosslinked foam. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960002894A 1995-02-08 1996-02-07 Polyolefin-based crosslinked foam KR100459304B1 (en)

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