KR970070032A - Process for producing methacrylic polymer by suspension polymerization - Google Patents

Process for producing methacrylic polymer by suspension polymerization Download PDF

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Publication number
KR970070032A
KR970070032A KR1019960009761A KR19960009761A KR970070032A KR 970070032 A KR970070032 A KR 970070032A KR 1019960009761 A KR1019960009761 A KR 1019960009761A KR 19960009761 A KR19960009761 A KR 19960009761A KR 970070032 A KR970070032 A KR 970070032A
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KR
South Korea
Prior art keywords
weight
methacrylic
acid ester
suspension
suspension polymerization
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Application number
KR1019960009761A
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Korean (ko)
Inventor
박홍준
Original Assignee
성재갑
주식회사 Lg 화학
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Application filed by 성재갑, 주식회사 Lg 화학 filed Critical 성재갑
Priority to KR1019960009761A priority Critical patent/KR970070032A/en
Publication of KR970070032A publication Critical patent/KR970070032A/en

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Abstract

메타크릴계 단량체로부터 현탁중합에 의해 메타크릴계 중합체를 제조하는 방법에 있어서, (a) 아크릴아미드 또는 메타크릴아미드 30 내지 90중량%, (b) 나트륨 2-아크릴아미드-2-메틸프로판 설포네이트 10 내지 40중량% 및 (c) 아크릴산 에스테르 또는 메타크릴산 에스테르 0 내지 30중량%의 공중합체를 현탁제로 사용하면 현탁 보조제를 사용하지 않고도 생성물의 순도 및 광학적 특성이 개선될 뿐 아니라 현탁중합시 발생되는 슬러리 모액의 유화중합체 함량이 최소화되고 중합 안정성 및 생선성이 현저히 개선된다.A method for producing a methacrylic polymer from a methacrylic monomer by suspension polymerization, comprising the steps of: (a) mixing 30 to 90% by weight of acrylamide or methacrylamide, (b) sodium 2-acrylamido-2-methylpropanesulfonate 10 to 40% by weight and (c) 0 to 30% by weight of a copolymer of acrylic acid ester or methacrylic acid ester as a suspension improves the purity and optical properties of the product without using a suspension aid, The emulsion polymer content of the slurry mother liquor is minimized and the polymerization stability and the fishy property are remarkably improved.

Description

현탁중합에 의해 메타크릴계중합체의 제조방법Method for producing methacrylic polymer by suspension polymerization

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

Claims (4)

메타크릴계 단량체로부터 현탁중합에 의해 메타크릴계 중합체를 제조하는 방법에 있어서, (a) 아크릴아미드 또는 메타크릴아미드 30 내지 90중량%, (b) 나트륨 2-아클릴아미드-2-메틸프로판 설포네이트 10 내지 40중량% 및 (c) 아크릴산 에스테르 또는 메타크릴산 에스테르 0 내지 30중량%의 공중합체를 현탁제로 사용하여 수행하는 것을 특징으로 하는 방법.A process for producing a methacrylic polymer from a methacrylic monomer by suspension polymerization, comprising the steps of: (a) mixing 30 to 90% by weight of acrylamide or methacrylamide, (b) sodium 2-acylamido- 10 to 40% by weight of nate and (c) 0 to 30% by weight of an acrylic acid ester or a methacrylic acid ester as a suspending agent. 제1항에 있어서, 상기 메타크릴계 단량체가 메틸메타트릴레이트 단독이거나 또는 메틸메타크릴레이트와 40중량% 이하의 공중합가능한 단량체와의 혼합물인 것을 특징으로 하는 방법.The method according to claim 1, wherein the methacrylic monomer is methyl methacrylate alone or a mixture of methyl methacrylate and up to 40% by weight of a copolymerizable monomer. 제1항에 있어서, 상기 현탁제인 공중합체가 (a) 아크릴아미드 또는 메타크릴아미드 45 내지 80중량%, (b) 나트륨 2-아클릴아미드-2-메틸프로판 설포네이트 20 내지 35중량% 및 (c) 아크릴산 에스테르 또는 메타크릴산 에스테르 0 내지 20중량%로 구성되는 것을 특징으로 하는 방법.The composition of claim 1, wherein the copolymer is a suspension comprising (a) from 45 to 80% by weight of acrylamide or methacrylamide, (b) from 20 to 35% by weight of sodium 2-acylamide- c) from 0 to 20% by weight of an acrylic acid ester or methacrylic acid ester. 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 현탁제인 공중합체의 첨가량이 현탁중합될 메타크릴계 단량체 혼합물 100중량부에 대해 0.005 내지 1.0중량부인 것을 특징으로 하는 방법.The method according to any one of claims 1 to 3, wherein the addition amount of the copolymer as the suspension is 0.005 to 1.0 part by weight based on 100 parts by weight of the methacrylic monomer mixture to be subjected to suspension polymerization. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960009761A 1996-04-01 1996-04-01 Process for producing methacrylic polymer by suspension polymerization KR970070032A (en)

Priority Applications (1)

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KR1019960009761A KR970070032A (en) 1996-04-01 1996-04-01 Process for producing methacrylic polymer by suspension polymerization

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Application Number Priority Date Filing Date Title
KR1019960009761A KR970070032A (en) 1996-04-01 1996-04-01 Process for producing methacrylic polymer by suspension polymerization

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KR970070032A true KR970070032A (en) 1997-11-07

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5461285A (en) * 1977-10-26 1979-05-17 Mitsui Toatsu Chem Inc Production of high-polymer coagulant
JPS6055011A (en) * 1983-09-06 1985-03-29 Arakawa Chem Ind Co Ltd Water-absorptive resin
JPS60238312A (en) * 1984-05-12 1985-11-27 Kanebo Ltd Production of sulfonic acid group-containing acrylamide polymer
JPS6136309A (en) * 1984-07-30 1986-02-21 Nippon Shokubai Kagaku Kogyo Co Ltd Water-absorbent resistant to salt and light
JPS62127309A (en) * 1985-11-27 1987-06-09 Mitsui Toatsu Chem Inc Production of stabilized 2-acrylamido-2-methylpropanesulfonate salt polymer
EP0457356A2 (en) * 1990-05-18 1991-11-21 ELF ATOCHEM ITALIA S.r.l. Process for preparing acrylic polymers in suspension
EP0683182A2 (en) * 1994-05-19 1995-11-22 ELF ATOCHEM ITALIA S.r.l. Process for preparing acrylic polymers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5461285A (en) * 1977-10-26 1979-05-17 Mitsui Toatsu Chem Inc Production of high-polymer coagulant
JPS6055011A (en) * 1983-09-06 1985-03-29 Arakawa Chem Ind Co Ltd Water-absorptive resin
JPS60238312A (en) * 1984-05-12 1985-11-27 Kanebo Ltd Production of sulfonic acid group-containing acrylamide polymer
JPS6136309A (en) * 1984-07-30 1986-02-21 Nippon Shokubai Kagaku Kogyo Co Ltd Water-absorbent resistant to salt and light
JPS62127309A (en) * 1985-11-27 1987-06-09 Mitsui Toatsu Chem Inc Production of stabilized 2-acrylamido-2-methylpropanesulfonate salt polymer
EP0457356A2 (en) * 1990-05-18 1991-11-21 ELF ATOCHEM ITALIA S.r.l. Process for preparing acrylic polymers in suspension
EP0683182A2 (en) * 1994-05-19 1995-11-22 ELF ATOCHEM ITALIA S.r.l. Process for preparing acrylic polymers

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