JPS5692915A - Production of polyester with high particle dispersibility - Google Patents

Production of polyester with high particle dispersibility

Info

Publication number
JPS5692915A
JPS5692915A JP16930879A JP16930879A JPS5692915A JP S5692915 A JPS5692915 A JP S5692915A JP 16930879 A JP16930879 A JP 16930879A JP 16930879 A JP16930879 A JP 16930879A JP S5692915 A JPS5692915 A JP S5692915A
Authority
JP
Japan
Prior art keywords
polyester
polymerization
added
less
completion
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP16930879A
Other languages
Japanese (ja)
Inventor
Hideo Ishibashi
Isao Terasawa
Yoshimitsu Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP16930879A priority Critical patent/JPS5692915A/en
Publication of JPS5692915A publication Critical patent/JPS5692915A/en
Pending legal-status Critical Current

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  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: A polyalkylene glycol containing dispersed inactive inorganic fine particles with primary particle sizes of less than a specified value is added to a polyester at a stage before the completion of polymerization to produce the titled polyester with improved dyeability, transparency and slidability.
CONSTITUTION: 0.05W4, preferably 0.3W2wt% of an inactive and inorganic fine particles with primary particle sizes of less than 5μ, preferably less than 100mμ, such as silica, is added to 1W10, preferably 3W7wt% of a polyalkylene glycol based on the resultant polyester. The dispersion is added to a polyester obtained from terephthalic acid or its derivative and a glycol selected from ethylene glycol and 1,4- butanediol or its derivative before the completion of the polymerization, preferably after the intrinsic viscosity of the polyester reaches 0.2 and the polymerization is completed.
COPYRIGHT: (C)1981,JPO&Japio
JP16930879A 1979-12-27 1979-12-27 Production of polyester with high particle dispersibility Pending JPS5692915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16930879A JPS5692915A (en) 1979-12-27 1979-12-27 Production of polyester with high particle dispersibility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16930879A JPS5692915A (en) 1979-12-27 1979-12-27 Production of polyester with high particle dispersibility

Publications (1)

Publication Number Publication Date
JPS5692915A true JPS5692915A (en) 1981-07-28

Family

ID=15884117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16930879A Pending JPS5692915A (en) 1979-12-27 1979-12-27 Production of polyester with high particle dispersibility

Country Status (1)

Country Link
JP (1) JPS5692915A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845227A (en) * 1981-09-14 1983-03-16 Toray Ind Inc Preparation of polyester having excellent particle dispersibility
JPS6058431A (en) * 1983-09-08 1985-04-04 Toyobo Co Ltd Production of easily slippery polyester

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845227A (en) * 1981-09-14 1983-03-16 Toray Ind Inc Preparation of polyester having excellent particle dispersibility
JPH0142288B2 (en) * 1981-09-14 1989-09-12 Toray Industries
JPS6058431A (en) * 1983-09-08 1985-04-04 Toyobo Co Ltd Production of easily slippery polyester

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