JPS56106922A - Production of modified polyester - Google Patents

Production of modified polyester

Info

Publication number
JPS56106922A
JPS56106922A JP191281A JP191281A JPS56106922A JP S56106922 A JPS56106922 A JP S56106922A JP 191281 A JP191281 A JP 191281A JP 191281 A JP191281 A JP 191281A JP S56106922 A JPS56106922 A JP S56106922A
Authority
JP
Japan
Prior art keywords
modifier
added
modified polyester
polycondensation
ester
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
JP191281A
Other languages
Japanese (ja)
Other versions
JPS6025047B2 (en
Inventor
Yasuhiro Tokiyama
Minoru Nishinohara
Nobuhiro Matsunaga
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.)
Nippon Ester Co Ltd
Original Assignee
Nippon Ester 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 Nippon Ester Co Ltd filed Critical Nippon Ester Co Ltd
Priority to JP191281A priority Critical patent/JPS6025047B2/en
Publication of JPS56106922A publication Critical patent/JPS56106922A/en
Publication of JPS6025047B2 publication Critical patent/JPS6025047B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: After a specified hydroxyethyl isophthalate is added as a modifier to oligomers prepared by the direct polycondensation method to form a uniformly melted liquid, a pigment of titanium oxide is added, then the polycondensation reaction is effected to produce a modified polyester dyeable with basic dyes.
CONSTITUTION: A modifier such as sodium 3,5-di(carbo-2-hydroxyethyl ester) benzene-sulfonate, which is prepared from a dialkyl ester of isophthalic acid bearing a sulfonate salt group and has 40W74% ester interchange rate, as a modifier in an amount of 0.5W10mol% is combined with more than 90mol% of direct-polycondensation oligomers of ethylene terephthalate of 2W9 average polymerization degree, which is determined by the measurement of saponification and acid values. They are kept at 270W260°C for 1W60min to give a uniform melted liquid and titanium oxide is added, preferably by 0.01W5wt%, then the polymerization is completed to produce the objective modified polyester.
COPYRIGHT: (C)1981,JPO&Japio
JP191281A 1981-01-09 1981-01-09 Manufacturing method of modified polyester Expired JPS6025047B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP191281A JPS6025047B2 (en) 1981-01-09 1981-01-09 Manufacturing method of modified polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP191281A JPS6025047B2 (en) 1981-01-09 1981-01-09 Manufacturing method of modified polyester

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP14966377A Division JPS5485298A (en) 1977-12-13 1977-12-13 Preparation of modified polyester

Publications (2)

Publication Number Publication Date
JPS56106922A true JPS56106922A (en) 1981-08-25
JPS6025047B2 JPS6025047B2 (en) 1985-06-15

Family

ID=11514787

Family Applications (1)

Application Number Title Priority Date Filing Date
JP191281A Expired JPS6025047B2 (en) 1981-01-09 1981-01-09 Manufacturing method of modified polyester

Country Status (1)

Country Link
JP (1) JPS6025047B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002220445A (en) * 2001-01-25 2002-08-09 Toray Ind Inc Method for producing modified polyester
JP2003525969A (en) * 1999-12-01 2003-09-02 ローディア インコーポレーテッド Method for producing sulfonated polyester compound
JP2008115244A (en) * 2006-11-02 2008-05-22 Toyobo Co Ltd Method for producing copolyester
CN111499853A (en) * 2020-04-27 2020-08-07 张家港美景荣化学工业有限公司 Cationic dyeable PET and composite elastic fiber prepared from same
JP2020164557A (en) * 2019-03-28 2020-10-08 東レ株式会社 Cation-dyeable polyester and method for producing the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003525969A (en) * 1999-12-01 2003-09-02 ローディア インコーポレーテッド Method for producing sulfonated polyester compound
JP2002220445A (en) * 2001-01-25 2002-08-09 Toray Ind Inc Method for producing modified polyester
JP4639478B2 (en) * 2001-01-25 2011-02-23 東レ株式会社 Method for producing modified polyester
JP2008115244A (en) * 2006-11-02 2008-05-22 Toyobo Co Ltd Method for producing copolyester
JP2020164557A (en) * 2019-03-28 2020-10-08 東レ株式会社 Cation-dyeable polyester and method for producing the same
CN111499853A (en) * 2020-04-27 2020-08-07 张家港美景荣化学工业有限公司 Cationic dyeable PET and composite elastic fiber prepared from same
CN111499853B (en) * 2020-04-27 2022-05-31 张家港美景荣化学工业有限公司 Cationic dyeable PET and composite elastic fiber prepared from same

Also Published As

Publication number Publication date
JPS6025047B2 (en) 1985-06-15

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