JPS51138795A - Process for preparing a high molecular weight polytetra methylene terephthalate - Google Patents
Process for preparing a high molecular weight polytetra methylene terephthalateInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4835495A (en) * | 1971-09-11 | 1973-05-24 | ||
JPS4847594A (en) * | 1971-10-19 | 1973-07-06 |
-
1975
- 1975-05-27 JP JP6253875A patent/JPS51138795A/en active Granted
Patent Citations (2)
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)
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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