KR940011521A - Process for producing copolyester - Google Patents

Process for producing copolyester Download PDF

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Publication number
KR940011521A
KR940011521A KR1019920021009A KR920021009A KR940011521A KR 940011521 A KR940011521 A KR 940011521A KR 1019920021009 A KR1019920021009 A KR 1019920021009A KR 920021009 A KR920021009 A KR 920021009A KR 940011521 A KR940011521 A KR 940011521A
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KR
South Korea
Prior art keywords
glycol
carboxylic acid
stabilizer
reaction
producing
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KR1019920021009A
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Korean (ko)
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KR960011008B1 (en
Inventor
이정수
박상진
Original Assignee
최근선
주식회사 럭 키
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Priority to KR1019920021009A priority Critical patent/KR960011008B1/en
Publication of KR940011521A publication Critical patent/KR940011521A/en
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Publication of KR960011008B1 publication Critical patent/KR960011008B1/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/66—Polyesters containing oxygen in the form of ether groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes

Abstract

본 발명은 글리콜과 이작용성 카르복실산을 에스테르화 반응 또는 에스테르 교환 반응시켜 폴리에스테르를 제조함에 있어서, (1)글리콜과 이작용성 카르복실산에 이소프탈산 또는 디메틸 이소프탈레이트와 폴리알킬렌 글리콜, 촉매 및 안정제를 첨가하여 반응시키고, (7) 반응이 95%이상 진행되면 안정제를 추가로 첨가하여 반응을 완료시킨 후, (3) 생성물을 중축합 반응기로 이송하고 촉매를 재첨가하여 고진공 상태에서 중축합 반응시킴을 특징으로 하는 공중합 폴리에스테르의 제조방법에 관한 것이다.The present invention is to prepare a polyester by esterification or transesterification of glycol and difunctional carboxylic acid. (1) Isophthalic acid or dimethyl isophthalate, polyalkylene glycol, catalyst on glycol and difunctional carboxylic acid And a stabilizer is added and reacted. (7) When the reaction proceeds to 95% or more, the stabilizer is further added to complete the reaction. It relates to a method for producing a copolyester characterized in that the polymerization reaction.

Description

공중합 폴리에스테르의 제조방법Process for producing copolyester

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (10)

글리콜과 이작용성 카르복실산을 에스테르화 반응 또는 에스테르교환 반응시켜 폴리에스테르를 제조함에 있어서, (1) 글리콜과 이작용성 카르복실산에 이소프탈산 또는 디메틸 이소프탈레이트와 폴리알킬렌 글리콜, 촉매 및 안정제를 첨가하여 반응시키고, (2) 반응이 95% 이상 진행되면 안정제를 추가로 첨가하여 반응을 완료시킨 후, (3) 생성물을 중축합 반응기로 이송하고 촉매를 재첨가하여 고진공 상태에서 중축합 반응시킴을 특징으로 하는 공중합 폴리에스테르의 제조방법.In preparing a polyester by esterification or transesterification of glycol and difunctional carboxylic acid, (1) glycol and difunctional carboxylic acid isophthalic acid or dimethyl isophthalate and polyalkylene glycol, catalyst and stabilizer (2) When the reaction proceeds to 95% or more, the stabilizer is added to complete the reaction. (3) The product is transferred to the polycondensation reactor, and the catalyst is added again to carry out the polycondensation reaction in a high vacuum state. Method for producing a copolyester characterized in that. 제1항에 있어서, 상기 이작용성 카르복실산이 테레프탈산 또는 디메틸 테레프탈레이트임을 특징으로 하는 공중합 폴리에스테르의 제조방법.The method of claim 1, wherein the bifunctional carboxylic acid is terephthalic acid or dimethyl terephthalate. 제1항에 있어서, 상기 글리콜이 1,4-부탄디올이거나 20몰% 이하의 에틸렌글리콜을 포함하는 1,4-부탄디올 임을 특징으로 하는 공중합 폴리에스테르의 제조방법.The method of claim 1, wherein the glycol is 1,4-butanediol or 1,4-butanediol containing 20 mol% or less of ethylene glycol. 제1항에 있어서, 상기 이소프탈산 또는 디메틸이소프탈레이트의 사용량이 이작용성 카르복실산에 대해 2-8중량%임을 특징으로 하는 공중합 폴리에스테르의 제조방법.The method of claim 1, wherein the amount of isophthalic acid or dimethylisophthalate is 2-8% by weight based on the difunctional carboxylic acid. 제1항에 있어서, 상기 폴리알킬렌 글리콜이 폴리에틸렌글리콜, 폴리프로필렌글리콜 또는 폴리테트라 메틸렌 글리콜 또는 그의 혼합물임을 특징으로 하는 공중합 폴리에스테르의 제조방법.The method of claim 1, wherein the polyalkylene glycol is polyethylene glycol, polypropylene glycol or polytetramethylene glycol or a mixture thereof. 제1항 또는 제5항에 있어서, 상기 폴리알킬렌 글리콜의 평균 분자량이 500-4000이고, 사용량은 이작용성 카르복실산에 대해 0.5-5중량%임을 특징으로 하는 공중합 폴리에스테르의 제조방법.6. The method of claim 1 or 5, wherein the average molecular weight of the polyalkylene glycol is 500-4000, and the amount of the polyalkylene glycol is 0.5-5% by weight based on the difunctional carboxylic acid. 제1항에 있어서, 상기 안정제로서 아마이드계 화합물, 차단된 페놀계 화합물 및 티오에테르 화합물을 병용함을 특징으로 하는 공중합 폴리에스테르의 제조방법.The method for producing copolyester according to claim 1, wherein an amide compound, a blocked phenol compound and a thioether compound are used in combination as the stabilizer. 제1항 또는 제7항에 있어서, 상기 안정제의 사용량이 이작용성 카르복실산에 대해 0.05-2중량%임을 특징으로 하는 공중합 폴리에스테르의 제조방법.The method for producing copolyester according to claim 1 or 7, wherein the amount of the stabilizer is 0.05-2% by weight relative to the bifunctional carboxylic acid. 제1항에 있어서, 에스테르화 반응 또는 에스테르 교환 반응 초기에 안정제로서 아마이드계 화합물을 첨가하고, 에스테르화 반응 또는 에스테르 교환 반응이 95%이상 진행되면 안정제로서 차단된 페놀계 화합물과 티오에테르 화합물을 첨가함을 특징으로 하는 공중합 폴리에스테르의 제조방법.The method of claim 1, wherein an amide compound is added as a stabilizer at the beginning of the esterification reaction or transesterification reaction, and when the esterification reaction or transesterification reaction is 95% or more, a blocked phenolic compound and a thioether compound are added. Method for producing a copolyester characterized in that. 제1항에 있어서, 상기 촉매가 테트라이소프로필티타네이트, 테트라부틸티타네이트, 테트라에틸티타네이트 또는 테트라메틸티타네이트이고, 사용량은 이작용성 카르복실산에 대해 0.01-0.3중량%임을 특징으로 하는 공중합 폴리에스테르의 제조방법.The copolymer according to claim 1, wherein the catalyst is tetraisopropyl titanate, tetrabutyl titanate, tetraethyl titanate or tetramethyl titanate, and the amount used is 0.01-0.3 wt% based on the bifunctional carboxylic acid. Method for producing polyester. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920021009A 1992-11-10 1992-11-10 Method for manufacturing polyester copolymer KR960011008B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920021009A KR960011008B1 (en) 1992-11-10 1992-11-10 Method for manufacturing polyester copolymer

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Application Number Priority Date Filing Date Title
KR1019920021009A KR960011008B1 (en) 1992-11-10 1992-11-10 Method for manufacturing polyester copolymer

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KR940011521A true KR940011521A (en) 1994-06-21
KR960011008B1 KR960011008B1 (en) 1996-08-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030024191A (en) * 2001-09-17 2003-03-26 주식회사 효성 Alkali soluble copolyester for composite fibre and its manufacturing method
KR100557604B1 (en) * 1998-12-23 2006-06-07 주식회사 휴비스 Method for producing flame retardant polyester resin with excellent alkali resistance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100557604B1 (en) * 1998-12-23 2006-06-07 주식회사 휴비스 Method for producing flame retardant polyester resin with excellent alkali resistance
KR20030024191A (en) * 2001-09-17 2003-03-26 주식회사 효성 Alkali soluble copolyester for composite fibre and its manufacturing method

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Publication number Publication date
KR960011008B1 (en) 1996-08-16

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