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KR890010030A - How to prepare polyester - Google Patents

How to prepare polyester Download PDF

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Publication number
KR890010030A
KR890010030A KR1019870015601A KR870015601A KR890010030A KR 890010030 A KR890010030 A KR 890010030A KR 1019870015601 A KR1019870015601 A KR 1019870015601A KR 870015601 A KR870015601 A KR 870015601A KR 890010030 A KR890010030 A KR 890010030A
Authority
KR
South Korea
Prior art keywords
acid
polyester
phosphorus compound
glycol
prepolymer
Prior art date
Application number
KR1019870015601A
Other languages
Korean (ko)
Inventor
박찬수
홍일표
Original Assignee
김인환
동양 폴리에스터 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.)
Filing date
Publication date
Application filed by 김인환, 동양 폴리에스터 주식회사 filed Critical 김인환
Priority to KR1019870015601A priority Critical patent/KR890010030A/en
Publication of KR890010030A publication Critical patent/KR890010030A/en

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Abstract

내용 없음No content

Description

폴리에스터의 제조방법How to prepare polyester

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

Claims (3)

디카르복실산을 글리콜로 직접 에스테르화하여 얻어진 생성물을 고온 감합하에서 다단계로 중축합하여 폴리에스터를 제조함에 있어, 제1단의 중축반 반응기에서 폴리에스터의 중합도가 35 내지 60이 될때까지 예비 중축합을 실시하여 프리폴리머를 생성시키고, 이 프리폴리머를 제2단의 중축합 반응기로 이송하는 과정에서 인화합물을 첨가하는 것을 특징으로 하는 폴리에스터의 제조방법.In the production of polyester by polycondensation of the product obtained by directly esterifying dicarboxylic acid with glycol in a multistage under high temperature fitting, the precondensation is carried out until the degree of polymerization of the polyester is 35 to 60 in the first stage polycondensation reactor. To produce a prepolymer, and to add the phosphorus compound in the process of transferring the prepolymer to the second stage polycondensation reactor. 제1항에 있어서, 적어도 디카르복실산의 85몰% 이상이 테레프탈산이고, 글리콜의 85몰% 이상이 에틸렌 글리콜인 것을 특징으로 하는 폴리에스터의 제조방법.The method for producing a polyester according to claim 1, wherein at least 85 mol% of the dicarboxylic acid is terephthalic acid, and at least 85 mol% of the glycol is ethylene glycol. 제1항에 있어서, 인화합물이 인산, 아인산, 포스폰산, 포스핀산으로 이루어진 군에서 선택된 적어도 1종의 저급 알킬에스테르(탄소수 1-5)이고, 인 함유량이 30 내지 200ppm이 되도록 첨가하는 것을 특징으로 하는 폴리에스터의 제조방법.The phosphorus compound is at least one lower alkyl ester (1-5 carbon atoms) selected from the group consisting of phosphoric acid, phosphorous acid, phosphonic acid and phosphinic acid, and the phosphorus compound is added so as to have a phosphorus content of 30 to 200 ppm. The manufacturing method of polyester. ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the initial application.
KR1019870015601A 1987-12-31 1987-12-31 How to prepare polyester KR890010030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019870015601A KR890010030A (en) 1987-12-31 1987-12-31 How to prepare polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019870015601A KR890010030A (en) 1987-12-31 1987-12-31 How to prepare polyester

Publications (1)

Publication Number Publication Date
KR890010030A true KR890010030A (en) 1989-08-05

Family

ID=68806463

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870015601A KR890010030A (en) 1987-12-31 1987-12-31 How to prepare polyester

Country Status (1)

Country Link
KR (1) KR890010030A (en)

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Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19871231

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid