KR970074805A - Method for producing transparent styrenic thermoplastic resin excellent in releasability - Google Patents

Method for producing transparent styrenic thermoplastic resin excellent in releasability Download PDF

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Publication number
KR970074805A
KR970074805A KR1019960015730A KR19960015730A KR970074805A KR 970074805 A KR970074805 A KR 970074805A KR 1019960015730 A KR1019960015730 A KR 1019960015730A KR 19960015730 A KR19960015730 A KR 19960015730A KR 970074805 A KR970074805 A KR 970074805A
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KR
South Korea
Prior art keywords
thermoplastic resin
producing
weight
styrene
transparent
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KR1019960015730A
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Korean (ko)
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KR100232700B1 (en
Inventor
고영
최성묵
오원석
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유현식
제일모직 주식회사
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Priority to KR1019960015730A priority Critical patent/KR100232700B1/en
Publication of KR970074805A publication Critical patent/KR970074805A/en
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Publication of KR100232700B1 publication Critical patent/KR100232700B1/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F112/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
    • C08F112/02—Monomers containing only one unsaturated aliphatic radical
    • C08F112/04—Monomers containing only one unsaturated aliphatic radical containing one ring
    • C08F112/06—Hydrocarbons
    • C08F112/08—Styrene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/02—Polymerisation in bulk
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene

Abstract

본 발명은 투명성이 우수하며 구조가 복잡하고 얇은 성형물의 사출성형에 적합한 이형성이 우수한 투명한 스티렌계 열기소성 수지의 제조방법을 제공하기 위한 것으로서, 중량평균 분자량이 18만 내지 33만인 스티렌계 열가소성 수지를 제조함에 있어서, 모노비닐 방향족화합물에 징크-스테아레이트, 메틸페닐실리콘오일을 투입하여 열 또는 개시제에 의한 괴상연속 중합방법에 의하여 제조함을 특징으로 한다.The present invention provides a method for producing a transparent styrene-based thermoplastic resin having excellent transparency and excellent mold releasability, which is suitable for injection molding of a thin molded article, which is excellent in transparency and has a styrene-based thermoplastic resin having a weight average molecular weight of 180,000 to 330,000 In the preparation, it is characterized in that zinc-stearate and methylphenyl silicone oil are added to a monovinylaromatic compound, followed by bulk continuous polymerization using heat or an initiator.

Description

이형성이 우수한 투명한 스티렌계 열가소성 수지의 제조방법.A method for producing a transparent styrenic thermoplastic resin excellent in releasability.

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

Claims (6)

중량평균 분자량이 18만 내지 32만인 스티렌계 열가소성 수지를 제조함에 있어서, 모노비닐 방향족화합물에 징크-스테아레이트, 메틸페닐실리콘오일을 투입하여 열 또는 개시제에 의한 괴상연속 중합방법에 의하여 제조함을 특징으로 하는 이형성이 우수한 투명한 스티렌계 열가소성 수지의 제조방법.Characterized in that the styrene-based thermoplastic resin having a weight average molecular weight of 180,000 to 320,000 is prepared by adding zinc-stearate and methylphenyl silicone oil to a monovinyl aromatic compound and then subjecting the monovinyl aromatic compound to continuous bulk polymerization using heat or an initiator Wherein the thermoplastic resin is a thermoplastic resin. 제1항에 있어서, 징크-스테아레이트는-0.01 내지 1.0중량부 투입하는 것을 특징으로 하는 이형성이 우수한 투명한 스티렌계 열가소성 수지의 제조방법.The method for producing a transparent styrene thermoplastic resin according to claim 1, wherein -0.01 to 1.0 part by weight of zinc-stearate is added. 제1항에 있어서, 메틸페닐실리콘오일은 25℃에서 5 내지 100센티스로크의 점도와 1.5 내지 1.55의 굴절율을 갖고 다음 식(I)의 구조를 가짐을 특징으로 하는 이형성이 우수한 투명한스티렌계 열가소성 수지의 제조방법.The transparent styrenic thermoplastic resin according to claim 1, wherein the methylphenyl silicone oil has a viscosity of 5 to 100 centistokes at 25 DEG C and a refractive index of 1.5 to 1.55 and has a structure represented by the following formula (I) Gt; (여기서, R은 메틸기, 페닐기를 나타내며, n은 상온에서 액상을 유지하는 폴리실록산 단위를 나타내는 정수이다.)(Wherein R represents a methyl group or a phenyl group, and n represents an integer representing a polysiloxane unit which maintains a liquid state at room temperature.) 제1항 또는 제3항에 있어서, 메틸페닐실리콘오일은 0.02 내지 0.2중랑부 투입함을 특징으로 하는 이형성이 우수한 투명한 스티렌계 열가소성 수지의 제조방법.The method for producing a transparent styrenic thermoplastic resin according to any one of claims 1 to 3, wherein the methylphenyl silicone oil is fed at 0.02 to 0.2 part by weight. 제1항에 있어서, 상온에서30 내지 100센티스토크의 점도를 갖는 유동파라핀계의 미네랄오일을 4.5중량부 이하의 양으로 추가 투입하는 것을 특징으로 하는 이형성이 우수한 투명한 스티렌계 열가소서 수지의 제조방법.A process for producing a transparent styrene-based thermoplastic resin excellent in releasability according to claim 1, wherein a liquid paraffinic mineral oil having a viscosity of 30 to 100 centistokes at room temperature is added in an amount of 4.5 parts by weight or less . 제1항에 있어서, 개시제로는 3금 부틸퍼옥시아세테이트, 3급 부틸퍼옥시벤조에이트, 아조-비스-이소부틸로니트릴, 벤조일퍼옥사이드 등을 사용함을 특징으로 하는 이형성이 우수한 투명한 스티렌계 열가소성 수지의 제조방법.The thermoplastic resin composition according to claim 1, wherein the initiator is at least one selected from the group consisting of 3-methylbutyl peroxyacetate, tertiary butyl peroxybenzoate, azo-bis-isobutylonitrile, benzoyl peroxide, A method for producing a resin. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960015730A 1996-05-13 1996-05-13 Process for preparing styrenic thermoplastic resin KR100232700B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960015730A KR100232700B1 (en) 1996-05-13 1996-05-13 Process for preparing styrenic thermoplastic resin

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Application Number Priority Date Filing Date Title
KR1019960015730A KR100232700B1 (en) 1996-05-13 1996-05-13 Process for preparing styrenic thermoplastic resin

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KR970074805A true KR970074805A (en) 1997-12-10
KR100232700B1 KR100232700B1 (en) 1999-12-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030033236A (en) * 2001-10-19 2003-05-01 제일모직주식회사 Thermoplastic Resin Compositions with Good Transparency and Impact Strength
KR100415151B1 (en) * 2001-10-15 2004-01-16 주식회사 엘지화학 Transparent high impact polystyrenic resins composition with good mold release and their prodution method
KR100442920B1 (en) * 2001-10-31 2004-08-02 주식회사 엘지화학 Rubber-modified styrene-based transparence resin composition having an excellent enviromental stress crack resistance and method for preparing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100415151B1 (en) * 2001-10-15 2004-01-16 주식회사 엘지화학 Transparent high impact polystyrenic resins composition with good mold release and their prodution method
KR20030033236A (en) * 2001-10-19 2003-05-01 제일모직주식회사 Thermoplastic Resin Compositions with Good Transparency and Impact Strength
KR100442920B1 (en) * 2001-10-31 2004-08-02 주식회사 엘지화학 Rubber-modified styrene-based transparence resin composition having an excellent enviromental stress crack resistance and method for preparing the same

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