KR970006267A - Aromatic dicarboxylic acid powder excellent in slurry stability and reactivity and method for producing polyester using the same - Google Patents

Aromatic dicarboxylic acid powder excellent in slurry stability and reactivity and method for producing polyester using the same Download PDF

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Publication number
KR970006267A
KR970006267A KR1019960030660A KR19960030660A KR970006267A KR 970006267 A KR970006267 A KR 970006267A KR 1019960030660 A KR1019960030660 A KR 1019960030660A KR 19960030660 A KR19960030660 A KR 19960030660A KR 970006267 A KR970006267 A KR 970006267A
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KR
South Korea
Prior art keywords
aromatic dicarboxylic
dicarboxylic acid
acid powder
particle size
slurry
Prior art date
Application number
KR1019960030660A
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Korean (ko)
Inventor
요시나오 이토
요시타까 노무라
Original Assignee
고다 시게노리
미쓰이 세키유 가가쿠고교 가부시끼가이샤
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Application filed by 고다 시게노리, 미쓰이 세키유 가가쿠고교 가부시끼가이샤 filed Critical 고다 시게노리
Publication of KR970006267A publication Critical patent/KR970006267A/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
    • C07C63/14—Monocyclic dicarboxylic acids

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

본 발명은 슬러리안정성 및 반응성이 우수하고, 슬러리화효율 및 에스테르화효율 양쪽이 양호하고, 소량의 디올(diol)을 사용하여 저점도의 안정한 슬러리를 형성할 수 있고, 또한 부반응을 억제하여 단시간에 효율 좋게 에스테르화반응을 행할 수 있고, 이것에 의해 소형의 장치를 사용하여 간단한 조작으로 효율 좋게 폴리에스테르를 제조할 수 있는 방향족 디카르본산분말 및 이를 사용하는 폴리에스테르 제조방법을 제공한다.Disclosure of the Invention The present invention provides a slurry composition which is excellent in both slurry stability and reactivity, has both a slurrying efficiency and an esterification efficiency, can form a stable slurry having a low viscosity using a small amount of a diol, The present invention provides an aromatic dicarboxylic acid powder and a method of producing a polyester using the aromatic dicarboxylic acid powder, in which an esterification reaction can be carried out with good efficiency, whereby a polyester can be efficiently produced by a simple operation using a small apparatus.

입도분포의 폭(W)과 평균입경(D)의 비 W/D가 1.2~1.8의 방향족디카르본산분말을 디올중에 현탁분산시켜 슬러리를 형성하고, 에스테르화 및 중축합반응에 의해 폴리에스테르를 제조한다.An aromatic dicarboxylic acid powder having a ratio W / D of a particle size distribution W to an average particle size D of from 1.2 to 1.8 is suspended and dispersed in a diol to form a slurry, and the polyester is subjected to esterification and polycondensation .

Description

슬러리 안정성과 반응성이 우수한 방향족디카르본산 분말 및 이를 사용하는 폴리에스테르 제조방법Aromatic dicarboxylic acid powder excellent in slurry stability and reactivity and method for producing polyester using the same

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

Claims (6)

입도분포의 폭(W)과 평균입경(D)의 W/D가 1.2~1.8인 것을 특징으로 하는 방향족디카르본산 분말.Wherein the W / D of the particle size distribution (W) and the average particle size (D) is 1.2 to 1.8. 제1항에 있어서, 평균입경이 30~500㎛인 것을 특징으로 하는 방향족디카르본산분말.The aromatic dicarboxylic acid powder according to claim 1, which has an average particle size of 30 to 500 μm. 제1항 또는 제2항에 있어서, 방향족디카르본산이 테레프탈산,이소프탈산 또는 나프탈렌디카르본산인 것을 특징으로 하는 방향족디카르본산분말.The aromatic dicarboxylic acid powder according to claim 1 or 2, wherein the aromatic dicarboxylic acid is terephthalic acid, isophthalic acid or naphthalenedicarboxylic acid. 입도분포의 폭(W)과 평균입경(D)의 비 W/D가 1.2~1.8인 방향족디카르본산분말을 디올중에 현탁분산시켜 슬러리를 형성하는 슬러리화공정과, 슬러리중의 방향족디카르본산과 디올을 반응시켜 에스테르를 형성하는 에스테르화공정과, 형성된 에스테르를 중축합하여 폴리에스테르를 형성하는 중축합공정을 포함하는 것을 특징으로 하는 폴리에스테르 제조방법.A slurry forming step of slurry-dispersing an aromatic dicarboxylic acid powder having a width W of a particle size distribution and a ratio W / D of an average particle size D of 1.2 to 1.8 in a diol to form a slurry; And a diol to form an ester; and a polycondensation step of polycondensing the formed ester to form a polyester. 제4항에 있어서, 방향족디카르본산분말의 평균입경이 30~500㎛인 것을 특징으로 하는 폴리에스테르 제조방법.The polyester producing method according to claim 4, wherein the aromatic dicarboxylic acid powder has an average particle size of 30 to 500 μm. 제4항 또는 제5항에 있어서, 방향족디카르본산이 테레프탈산, 이소프탈산 또는 나프탈렌디카르본산이고, 디올이 에틸렌글리콜인 폴리에스테르 제조방법.The process for producing a polyester according to claim 4 or 5, wherein the aromatic dicarboxylic acid is terephthalic acid, isophthalic acid or naphthalenedicarboxylic acid, and the diol is ethylene glycol. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960030660A 1995-07-26 1996-07-26 Aromatic dicarboxylic acid powder excellent in slurry stability and reactivity and method for producing polyester using the same KR970006267A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP19061795 1995-07-26
JP95-190617 1995-07-26

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KR970006267A true KR970006267A (en) 1997-02-19

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KR1019960030660A KR970006267A (en) 1995-07-26 1996-07-26 Aromatic dicarboxylic acid powder excellent in slurry stability and reactivity and method for producing polyester using the same

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CN (1) CN1147502A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101977963B (en) * 2008-03-28 2013-03-27 三菱化学株式会社 Production method of aliphatic polyester

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