JPS55127431A - Production of polyester - Google Patents

Production of polyester

Info

Publication number
JPS55127431A
JPS55127431A JP3604779A JP3604779A JPS55127431A JP S55127431 A JPS55127431 A JP S55127431A JP 3604779 A JP3604779 A JP 3604779A JP 3604779 A JP3604779 A JP 3604779A JP S55127431 A JPS55127431 A JP S55127431A
Authority
JP
Japan
Prior art keywords
added
terephthalic acid
cpd
inorg
ppm
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.)
Granted
Application number
JP3604779A
Other languages
Japanese (ja)
Other versions
JPS6139971B2 (en
Inventor
Joshin Kuwata
Akio Odajima
Shunei Inoue
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 JP3604779A priority Critical patent/JPS55127431A/en
Publication of JPS55127431A publication Critical patent/JPS55127431A/en
Publication of JPS6139971B2 publication Critical patent/JPS6139971B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain polyester which has good brihtness and transparency and forms fiber easily, by a method wherein terephthalic acid contg. p-formylbenzoic acid is esterified with ethylene glycol, then a phosphorus cpd., a cobalt cpd. and inorg. particles are added to the reaction mixt. and the resulting mixt. is subjected to polycondensation.
CONSTITUTION: (A) Dicarboxylic acids consisting mainly of terephthalic acid contg. 100W1000ppm of p-formylbenzoic acid are esterified with (B) glycols consisting mainly of ethylene glycol until an esterification rate of not less than 95% is obtained. To the reaction mixt. are added (C) a phosphorus cpd, a cobalt cpd and inorg. particles having an average particle diameter of not more than 5μ and a refractive index of 1.40W1.70 in an amount determined by the formula I,II and III [wherein (P), (Co) are amounts added (based on each R atom) (ppm vs polymer), (FBA) is p-formylbenzoic acid content in terephthalic acid (ppm vs terephthalic acid), (Par) is amount of inorg, particles added (ppm vs polymer)]. The resulting mixt. is subjected to polycondensation to produce polyester.
COPYRIGHT: (C)1980,JPO&Japio
JP3604779A 1979-03-27 1979-03-27 Production of polyester Granted JPS55127431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3604779A JPS55127431A (en) 1979-03-27 1979-03-27 Production of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3604779A JPS55127431A (en) 1979-03-27 1979-03-27 Production of polyester

Publications (2)

Publication Number Publication Date
JPS55127431A true JPS55127431A (en) 1980-10-02
JPS6139971B2 JPS6139971B2 (en) 1986-09-06

Family

ID=12458789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3604779A Granted JPS55127431A (en) 1979-03-27 1979-03-27 Production of polyester

Country Status (1)

Country Link
JP (1) JPS55127431A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56104927A (en) * 1980-01-24 1981-08-21 Toray Ind Inc Addition of pigment to polyester
JPS6088121A (en) * 1983-09-14 1985-05-17 ヘキスト　セラニーズ　コーポレーシヨン High speed production of sufficiently stretched polyester yarn
JPWO2009088008A1 (en) * 2008-01-08 2011-05-26 帝人ファイバー株式会社 Normal pressure cationic dyeable polyester and fiber

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01143174U (en) * 1988-03-25 1989-10-02

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56104927A (en) * 1980-01-24 1981-08-21 Toray Ind Inc Addition of pigment to polyester
JPS6088121A (en) * 1983-09-14 1985-05-17 ヘキスト　セラニーズ　コーポレーシヨン High speed production of sufficiently stretched polyester yarn
JPWO2009088008A1 (en) * 2008-01-08 2011-05-26 帝人ファイバー株式会社 Normal pressure cationic dyeable polyester and fiber

Also Published As

Publication number Publication date
JPS6139971B2 (en) 1986-09-06

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