KR950018080A - Manufacturing method of methacrylic resin molding material excellent in thermal stability and polymerization productivity - Google Patents

Manufacturing method of methacrylic resin molding material excellent in thermal stability and polymerization productivity Download PDF

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Publication number
KR950018080A
KR950018080A KR1019940036789A KR19940036789A KR950018080A KR 950018080 A KR950018080 A KR 950018080A KR 1019940036789 A KR1019940036789 A KR 1019940036789A KR 19940036789 A KR19940036789 A KR 19940036789A KR 950018080 A KR950018080 A KR 950018080A
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KR
South Korea
Prior art keywords
weight
parts
temperature
molding material
resin molding
Prior art date
Application number
KR1019940036789A
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Korean (ko)
Inventor
박홍준
이진열
Original Assignee
성재갑
주식회사 엘지화학
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Application filed by 성재갑, 주식회사 엘지화학 filed Critical 성재갑
Publication of KR950018080A publication Critical patent/KR950018080A/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
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/10—Esters
    • C08F20/12—Esters of monohydric alcohols or phenols
    • C08F20/14—Methyl esters, e.g. methyl (meth)acrylate

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

본 발명은 생산성이 향상되고, 가열 착색성 문제, 잔류 단량체 함량의 증가문제, 내열성 저하문제 및 성형불량 문제 등이 없는 우수한 메타크릴계 수지 성형재료의 제조방법에 관한 것으로, 메틸메타크릴레이트 단독 또는 메틸메타크릴레이트를 주성분으로 적어도 70%이상인 단량체 혼합물 100 중량부에 대해서, 직쇄알킬메르캅탄 0.1-0.8 중량부 존재하에서 10시간 반감기 온도가 60-75℃인 저온중합개시제 0.02-0.25 중량부와 10시간 반감기 온도가 90-110℃인 고온중합 개시제 0.03-0.30 중량부를 병용 첨가 중합함을 특징으로 한다.The present invention relates to a method for producing an excellent methacryl-based resin molding material having improved productivity, no heat coloring problem, an increase in residual monomer content, a low heat resistance problem, and a poor molding problem. To 100 parts by weight of a monomer mixture containing at least 70% or more of methacrylate as a main component, 0.02-0.25 parts by weight of a low-temperature polymerization initiator having a half-life temperature of 60-75 ° C for 10 hours in the presence of 0.1-0.8 parts by weight of a linear alkyl mercaptan. It is characterized in that the combined polymerization of 0.03-0.30 parts by weight of a high-temperature polymerization initiator having a half-life temperature of 90-110 ° C.

Description

열안정성과 중합생산성이 우수한 메타크릴계 수지 성형재료의 제조방법Manufacturing method of methacrylic resin molding material excellent in thermal stability and polymerization productivity

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (2)

메틸메탈크릴레이트 단독 또는 메틸메타크릴레이트를 주성분으로 하는 적어도 70%이상인 단량체 혼합물 100 중량부에 대해서, 직쇄알킬메르캅탄 0.1-0.8 중량부 존재하에서 10시간 반감기 온도가 60-75℃인 저온중합개시제 0.02-0.25 중량부와 10시간 반감기 온도가 90-110℃인 고온중합 개시제 0.03-0.30 중량부를 병용 첨가 중합함을 특징으로 하는 메타크릴계 수지 성형재료의 제조방법.A low-temperature polymerization initiator having a half-life temperature of 60-75 ° C for 10 hours in the presence of 0.1-0.8 parts by weight of a linear alkyl mercaptan based on 100 parts by weight of methyl methacrylate alone or at least 70% or more of a monomer mixture containing methyl methacrylate as a main component. A method for producing a methacrylic resin molding material characterized by adding and polymerizing 0.02-0.25 parts by weight and 0.03-0.30 parts by weight of a high-temperature polymerization initiator having a half-life temperature of 10 hours at 90-110 ° C. 제1항에 있어서, 중합방법은 90-115℃의 온도에서 1차 중합을 하여 전환율이 30-80%에 도달하면 120-130℃에서 20분이상 2차 중합을 시키는 것을 특징으로 하는 메타크릴계 수지 성형재료의 제조방법.The method of claim 1, wherein the polymerization method is a first polymerization at a temperature of 90-115 ℃ methacrylate system characterized in that the secondary polymerization at 120-130 ℃ 20 minutes or more when the conversion rate reaches 30-80% Method for producing a resin molding material. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940036789A 1993-12-30 1994-12-26 Manufacturing method of methacrylic resin molding material excellent in thermal stability and polymerization productivity KR950018080A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR93-32316 1993-12-30
KR93000032316 1994-12-26

Publications (1)

Publication Number Publication Date
KR950018080A true KR950018080A (en) 1995-07-22

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KR1019940036789A KR950018080A (en) 1993-12-30 1994-12-26 Manufacturing method of methacrylic resin molding material excellent in thermal stability and polymerization productivity

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007078541A1 (en) * 2005-12-16 2007-07-12 3M Innovative Properties Company Method of free radically polymerizing vinyl monomers

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56145907A (en) * 1980-04-15 1981-11-13 Kyowa Gas Chem Ind Co Ltd Production of methacrylic resin having excellent heat distorsion resistance
JPS58132002A (en) * 1982-01-29 1983-08-06 Asahi Chem Ind Co Ltd Continuous production of methacrylate copolymer
JPS60226510A (en) * 1984-04-25 1985-11-11 Kyowa Gas Chem Ind Co Ltd Production of methacrylic resin prepreg
JPS61151212A (en) * 1984-12-24 1986-07-09 Kuraray Co Ltd Methacrylate copolymer and its production
JPS63304013A (en) * 1987-06-03 1988-12-12 Asahi Chem Ind Co Ltd Production of heat-resistant acrylic copolymer
JPH03188111A (en) * 1989-12-15 1991-08-16 Kuraray Co Ltd Production of light-resistant methacrylic resin containing maleimide
US5073615A (en) * 1989-03-13 1991-12-17 Continental Polymers, Inc. High temperature heat resistant acrylics

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56145907A (en) * 1980-04-15 1981-11-13 Kyowa Gas Chem Ind Co Ltd Production of methacrylic resin having excellent heat distorsion resistance
JPS58132002A (en) * 1982-01-29 1983-08-06 Asahi Chem Ind Co Ltd Continuous production of methacrylate copolymer
JPS60226510A (en) * 1984-04-25 1985-11-11 Kyowa Gas Chem Ind Co Ltd Production of methacrylic resin prepreg
JPS61151212A (en) * 1984-12-24 1986-07-09 Kuraray Co Ltd Methacrylate copolymer and its production
JPS63304013A (en) * 1987-06-03 1988-12-12 Asahi Chem Ind Co Ltd Production of heat-resistant acrylic copolymer
US5073615A (en) * 1989-03-13 1991-12-17 Continental Polymers, Inc. High temperature heat resistant acrylics
JPH03188111A (en) * 1989-12-15 1991-08-16 Kuraray Co Ltd Production of light-resistant methacrylic resin containing maleimide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007078541A1 (en) * 2005-12-16 2007-07-12 3M Innovative Properties Company Method of free radically polymerizing vinyl monomers
US8263718B2 (en) 2005-12-16 2012-09-11 3M Innovative Properties Company Method of free radically polymerizing vinyl monomers

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