JPS54132696A - Preparation of polyester - Google Patents
Preparation of polyesterInfo
- Publication number
- JPS54132696A JPS54132696A JP3913578A JP3913578A JPS54132696A JP S54132696 A JPS54132696 A JP S54132696A JP 3913578 A JP3913578 A JP 3913578A JP 3913578 A JP3913578 A JP 3913578A JP S54132696 A JPS54132696 A JP S54132696A
- Authority
- JP
- Japan
- Prior art keywords
- polyester
- ester
- basis
- phosphoric acid
- earth metal
- 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 colorless polyester resin having a reduced carboxyl group number, efficiently in a short time, by reacting a polyester with a monofunctional epoxy compound in the presence of an alkaline earth metal compound and phosphoric acid or its ester.
CONSTITUTION: A mixture comprising (A) a polyester consisting of ≥80 mole % of ethylene terephthalate unit in the recurring unit, (B) a monofunctional epoxy compound (0.1W10 wt% on the basis of (A)), e.g. phenyl glycidyl ether, etc., (C) an alkali earth metal compound, e.g. calcium acetate, etc., and (D) phosphoric acid or its ester (0.05W3.0 equivalent on the basis of (C)), is reacted to give the desired polyester.
EFFECT: Hydrolysis resistance is remarkably improved; and the polyester is particularly useful for industrial products, e.g. tire cord, fishing net, etc.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3913578A JPS54132696A (en) | 1978-04-05 | 1978-04-05 | Preparation of polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3913578A JPS54132696A (en) | 1978-04-05 | 1978-04-05 | Preparation of polyester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54132696A true JPS54132696A (en) | 1979-10-15 |
JPS6142728B2 JPS6142728B2 (en) | 1986-09-24 |
Family
ID=12544653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3913578A Granted JPS54132696A (en) | 1978-04-05 | 1978-04-05 | Preparation of polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54132696A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5742728A (en) * | 1980-08-28 | 1982-03-10 | Toyobo Co Ltd | Production of high-viscosity modified polyester elastomer |
JPS59204618A (en) * | 1983-05-06 | 1984-11-20 | Toyobo Co Ltd | Method for modifying polyester elastomer |
JPS60221451A (en) * | 1984-04-18 | 1985-11-06 | Toyobo Co Ltd | Elastic composition of polyester having improved heat resistance |
US5472781A (en) * | 1991-12-13 | 1995-12-05 | Kolon Industries, Inc. | High strength polyester filamentary yarn |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0291109U (en) * | 1988-12-29 | 1990-07-19 |
-
1978
- 1978-04-05 JP JP3913578A patent/JPS54132696A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5742728A (en) * | 1980-08-28 | 1982-03-10 | Toyobo Co Ltd | Production of high-viscosity modified polyester elastomer |
JPS6238367B2 (en) * | 1980-08-28 | 1987-08-18 | Toyo Boseki | |
JPS59204618A (en) * | 1983-05-06 | 1984-11-20 | Toyobo Co Ltd | Method for modifying polyester elastomer |
JPS60221451A (en) * | 1984-04-18 | 1985-11-06 | Toyobo Co Ltd | Elastic composition of polyester having improved heat resistance |
US5472781A (en) * | 1991-12-13 | 1995-12-05 | Kolon Industries, Inc. | High strength polyester filamentary yarn |
USRE36698E (en) * | 1991-12-13 | 2000-05-16 | Kolon Industries, Inc. | High strength polyester filamentary yarn |
Also Published As
Publication number | Publication date |
---|---|
JPS6142728B2 (en) | 1986-09-24 |
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