KR960037718A - Method for producing polyester copolymer for synthetic fibers - Google Patents

Method for producing polyester copolymer for synthetic fibers Download PDF

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Publication number
KR960037718A
KR960037718A KR1019950008404A KR19950008404A KR960037718A KR 960037718 A KR960037718 A KR 960037718A KR 1019950008404 A KR1019950008404 A KR 1019950008404A KR 19950008404 A KR19950008404 A KR 19950008404A KR 960037718 A KR960037718 A KR 960037718A
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KR
South Korea
Prior art keywords
synthetic fibers
polyester copolymer
producing
ethylene glycol
general formula
Prior art date
Application number
KR1019950008404A
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Korean (ko)
Inventor
최오곤
최병길
임대우
Original Assignee
박홍기
제일합섬 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 박홍기, 제일합섬 주식회사 filed Critical 박홍기
Priority to KR1019950008404A priority Critical patent/KR960037718A/en
Publication of KR960037718A publication Critical patent/KR960037718A/en

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Abstract

본 발명은 합성섬유용으로 사용되는 폴리에스테르 공중합체의 제조방법에 관한 것으로, 종래의 제조방법에 비해 항필링성, 가공성과 같은 물성의 개량과 함께 제조원가를 낮추도록 한 것이다.The present invention relates to a method for producing a polyester copolymer used for synthetic fibers, and to lower the production cost with the improvement of physical properties such as anti-pilling, processability compared to the conventional manufacturing method.

즉, 본 발명은 테레프탈산과 이소프탈산을 주성분으로 하는 디카르본산과 에틸렌 글리콜 및 하기 일반식(Ⅰ)로 표시되는 2가 알코올을 중축합 반응촉매, 산화 방지제 및 탈색방지제 등의 첨가제의 존재하에 반응시켜 극한점도〔η〕가 0.45∼0.78인 폴리에틸렌 테레프탈레이트-이소프탈레이트-디(또는 트리) 에틸렌글리콜 공중합체를 제조함에 있어 하기 일반식(Ⅰ)로 표시되는 화합물을 에스테르화 반응 초기에 투입해 0.5∼8.0wt% 공중합하는 것을 특징으로 한 것이다.That is, the present invention reacts dicarboxylic acid and ethylene glycol mainly composed of terephthalic acid and isophthalic acid and dihydric alcohols represented by the following general formula (I) in the presence of additives such as polycondensation reaction catalysts, antioxidants and anti-bleaching agents. In preparing a polyethylene terephthalate-isophthalate-di (or tri) ethylene glycol copolymer having an intrinsic viscosity [?] Of 0.45 to 0.78, the compound represented by the following formula (I) It is characterized by copolymerizing -8.0 wt%.

RO-(CH2CH2O)n-H (Ⅰ)RO- (CH 2 CH 2 O) n -H (Ⅰ)

(여기에서, n은 2∼22이며, R은 수소, 메틸, 에틸 또는 페닐기 중에서 선택된 것임)Wherein n is 2 to 22 and R is selected from hydrogen, methyl, ethyl or phenyl group

Description

합성섬유용 폴리에스테르 공중합체 제조방법Method for producing polyester copolymer for synthetic fibers

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

Claims (4)

테레프탈산과 이소프탈산을 주성분으로 하는 디카르본산과 에틸렌 글리콜 및 하기 일반식(Ⅰ)로 표시되는 2가 알코올을 중축합 반응촉매, 하기 일반식(Ⅱ)로 표시되는 산화방지제 및 탈색방지제와 같은 첨가제의 존재하에 반응시켜 극한점도〔η〕가 0.45∼0.78인 폴리에틸렌 테레프탈레이트-이소프탈레이트디(또는 트리) 에틸렌글리콜 공중합체를 제조함에 있어서, 하기 일반식(Ⅰ)로 표시되는 화합물을 에스테르화 반응 초기에 투입하여 0.5∼8.0wt% 공중합되도록 하는 것을 특징으로 하는 합성섬유용 폴리에스테르 공중합체 제조방법.Additives such as polycondensation reaction catalysts of dicarboxylic acid and ethylene glycol mainly composed of terephthalic acid and isophthalic acid and dihydric alcohols represented by the following general formula (I), antioxidants represented by the general formula (II) In the production of polyethylene terephthalate-isophthalate di (or tri) ethylene glycol copolymers having an intrinsic viscosity [?] Of 0.45 to 0.78 by reacting in the presence of, the compounds represented by the following general formula (I) Method for producing a polyester copolymer for synthetic fibers, characterized in that to be added in 0.5 to 8.0wt% copolymerization. RO-(CH2CH2O)n-H (Ⅰ)RO- (CH 2 CH 2 O) n -H (Ⅰ) (여기에서, n은 2∼22이며, R은 수소, 메틸, 에틸 또는 페닐기 중에서 선택된 것임)Wherein n is 2 to 22 and R is selected from hydrogen, methyl, ethyl or phenyl group 제1항에 있어서, 산화방지제는 중축합반응의 초기 단계에서 폴리머에 대하여 0.01∼0.5wt% 첨가함을 특징으로 하는 합성섬유용 폴리에스테르 공중합체 제조방법.The method according to claim 1, wherein the antioxidant is added to the polymer in the initial stage of the polycondensation reaction, the polyester copolymer for synthetic fibers, characterized in that the addition. 제1항에 있어서, 중축합 반응 촉매로 삼산화 안티몬이 사용됨을 특징으로 하는 합성섬유용 폴리에스테르 공중합체 제조방법.The method for producing a polyester copolymer for synthetic fibers according to claim 1, wherein antimony trioxide is used as the polycondensation reaction catalyst. 제1항에 있어서, 탈색방지제로 인산을 사용함을 특징으로 하는 합성섬유용 폴리에스테르 공중합체 제조방법.The method for producing a polyester copolymer for synthetic fibers according to claim 1, wherein phosphoric acid is used as an anti-bleaching agent. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019950008404A 1995-04-11 1995-04-11 Method for producing polyester copolymer for synthetic fibers KR960037718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950008404A KR960037718A (en) 1995-04-11 1995-04-11 Method for producing polyester copolymer for synthetic fibers

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Application Number Priority Date Filing Date Title
KR1019950008404A KR960037718A (en) 1995-04-11 1995-04-11 Method for producing polyester copolymer for synthetic fibers

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KR960037718A true KR960037718A (en) 1996-11-19

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KR1019950008404A KR960037718A (en) 1995-04-11 1995-04-11 Method for producing polyester copolymer for synthetic fibers

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100659022B1 (en) * 2000-04-26 2006-12-21 주식회사 새 한 Copolyester resin with high clarity and process for producing them

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100659022B1 (en) * 2000-04-26 2006-12-21 주식회사 새 한 Copolyester resin with high clarity and process for producing them

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