JPS51138795A - Process for preparing a high molecular weight polytetra methylene terephthalate - Google Patents

Process for preparing a high molecular weight polytetra methylene terephthalate

Info

Publication number
JPS51138795A
JPS51138795A JP6253875A JP6253875A JPS51138795A JP S51138795 A JPS51138795 A JP S51138795A JP 6253875 A JP6253875 A JP 6253875A JP 6253875 A JP6253875 A JP 6253875A JP S51138795 A JPS51138795 A JP S51138795A
Authority
JP
Japan
Prior art keywords
preparing
molecular weight
high molecular
methylene terephthalate
polytetra methylene
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
JP6253875A
Other languages
Japanese (ja)
Other versions
JPS5519253B2 (en
Inventor
Kunihiro Azuma
Masahiko Hayashi
Shunji Nakazawa
Michihiko Tanaka
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 JP6253875A priority Critical patent/JPS51138795A/en
Publication of JPS51138795A publication Critical patent/JPS51138795A/en
Publication of JPS5519253B2 publication Critical patent/JPS5519253B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prepare a polytetramethylene terephthalate having an intrinsic viscosity of higher than 1. 2 by direct polymerization in solution without using any other process for increasing the degree of polymerization, by specifying the character of bis-(4-hydroxybutyl) terephthalate and its oligomers.
COPYRIGHT: (C)1976,JPO&Japio
JP6253875A 1975-05-27 1975-05-27 Process for preparing a high molecular weight polytetra methylene terephthalate Granted JPS51138795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6253875A JPS51138795A (en) 1975-05-27 1975-05-27 Process for preparing a high molecular weight polytetra methylene terephthalate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6253875A JPS51138795A (en) 1975-05-27 1975-05-27 Process for preparing a high molecular weight polytetra methylene terephthalate

Publications (2)

Publication Number Publication Date
JPS51138795A true JPS51138795A (en) 1976-11-30
JPS5519253B2 JPS5519253B2 (en) 1980-05-24

Family

ID=13203080

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6253875A Granted JPS51138795A (en) 1975-05-27 1975-05-27 Process for preparing a high molecular weight polytetra methylene terephthalate

Country Status (1)

Country Link
JP (1) JPS51138795A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773020A (en) * 1980-08-25 1982-05-07 Celanese Corp Manufacture of polybutylene terephthalate
JP2008150625A (en) * 1997-03-31 2008-07-03 Toray Ind Inc Method for manufacturing polybutylene terephthalate

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4835495A (en) * 1971-09-11 1973-05-24
JPS4847594A (en) * 1971-10-19 1973-07-06

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4835495A (en) * 1971-09-11 1973-05-24
JPS4847594A (en) * 1971-10-19 1973-07-06

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773020A (en) * 1980-08-25 1982-05-07 Celanese Corp Manufacture of polybutylene terephthalate
JPH0360849B2 (en) * 1980-08-25 1991-09-18 Hoechst Celanese Corp
JP2008150625A (en) * 1997-03-31 2008-07-03 Toray Ind Inc Method for manufacturing polybutylene terephthalate

Also Published As

Publication number Publication date
JPS5519253B2 (en) 1980-05-24

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