JPS52117396A - Preparation of polyesters with improved whiteness - Google Patents

Preparation of polyesters with improved whiteness

Info

Publication number
JPS52117396A
JPS52117396A JP3632776A JP3632776A JPS52117396A JP S52117396 A JPS52117396 A JP S52117396A JP 3632776 A JP3632776 A JP 3632776A JP 3632776 A JP3632776 A JP 3632776A JP S52117396 A JPS52117396 A JP S52117396A
Authority
JP
Japan
Prior art keywords
polyesters
preparation
improved whiteness
specific
whiteness
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
JP3632776A
Other languages
Japanese (ja)
Inventor
Takaaki Tsuji
Yoshinuki Maeda
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.)
Kuraray Co Ltd
Original Assignee
Kuraray Co Ltd
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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP3632776A priority Critical patent/JPS52117396A/en
Publication of JPS52117396A publication Critical patent/JPS52117396A/en
Pending legal-status Critical Current

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  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To prepare polyesters with improved whiteness, by the polycondensation in the presence of specific silicon compounds and specific catalysts by the use of crude terephthalic acid having specific optical properties as a starting material.
COPYRIGHT: (C)1977,JPO&Japio
JP3632776A 1976-03-29 1976-03-29 Preparation of polyesters with improved whiteness Pending JPS52117396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3632776A JPS52117396A (en) 1976-03-29 1976-03-29 Preparation of polyesters with improved whiteness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3632776A JPS52117396A (en) 1976-03-29 1976-03-29 Preparation of polyesters with improved whiteness

Publications (1)

Publication Number Publication Date
JPS52117396A true JPS52117396A (en) 1977-10-01

Family

ID=12466733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3632776A Pending JPS52117396A (en) 1976-03-29 1976-03-29 Preparation of polyesters with improved whiteness

Country Status (1)

Country Link
JP (1) JPS52117396A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10506732B2 (en) 2015-09-15 2019-12-10 Vitesco Technologies Germany Gmbh Media-tight control device for a motor vehicle and method for producing the control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10506732B2 (en) 2015-09-15 2019-12-10 Vitesco Technologies Germany Gmbh Media-tight control device for a motor vehicle and method for producing the control device

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