JPS57198745A - Crystallization accelerator for polyester - Google Patents
Crystallization accelerator for polyesterInfo
- Publication number
- JPS57198745A JPS57198745A JP8395581A JP8395581A JPS57198745A JP S57198745 A JPS57198745 A JP S57198745A JP 8395581 A JP8395581 A JP 8395581A JP 8395581 A JP8395581 A JP 8395581A JP S57198745 A JPS57198745 A JP S57198745A
- Authority
- JP
- Japan
- Prior art keywords
- accelerator
- polyester
- crystallization
- injection molding
- sulfonic acid
- 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: The titled accelerator, consisting of an alkaline earth metallic salt of an aromatic sulfonic acid, capable of remarkably increasing the crystallization rate, advancing the crystallization uniformly even in injection molding at a low mold temperature without coloring and reducing the injection molding cycle.
CONSTITUTION: A crystallization accelerator for a polyester consisting of an alkali metallic or alkaline earth metallic salt of an aromatic sulfonic acid expressed by the formula{H-(OCHR1-CHR2)lO}mAr-(SO3H)n (Ar is aromatic ring; R1 and R2 are H or 1W4C alkyl; l is an integre 1W10; m and n are 1 or 2), preferably sodium 4-(2-hydroxyethoxy)benzenesulfonate. 0.05W5.0pts.wt. accelerator is powerfully melt keaded with 100pts.wt. polyester. The accelerator may be added to the material before the polymerization of the polyester is completed. In this case, the accelerator may be used in an amount of 0.1W5mol% based on the total acidic component.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8395581A JPS57198745A (en) | 1981-06-01 | 1981-06-01 | Crystallization accelerator for polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8395581A JPS57198745A (en) | 1981-06-01 | 1981-06-01 | Crystallization accelerator for polyester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57198745A true JPS57198745A (en) | 1982-12-06 |
JPS62761B2 JPS62761B2 (en) | 1987-01-09 |
Family
ID=13816997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8395581A Granted JPS57198745A (en) | 1981-06-01 | 1981-06-01 | Crystallization accelerator for polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57198745A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59124949A (en) * | 1983-01-05 | 1984-07-19 | Mitsubishi Rayon Co Ltd | Master pellet composition containing nucleating agent for polyester resin and production thereof |
US4533690A (en) * | 1984-04-26 | 1985-08-06 | General Electric Company | Flame retardant polycarbonate compositions |
US8236904B2 (en) | 2005-12-28 | 2012-08-07 | Ethicon, Inc. | Bioabsorbable polymer compositions exhibiting enhanced crystallization and hydrolysis rates |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4841715A (en) * | 1971-09-27 | 1973-06-18 | ||
JPS4934191A (en) * | 1972-07-31 | 1974-03-29 |
-
1981
- 1981-06-01 JP JP8395581A patent/JPS57198745A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4841715A (en) * | 1971-09-27 | 1973-06-18 | ||
JPS4934191A (en) * | 1972-07-31 | 1974-03-29 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59124949A (en) * | 1983-01-05 | 1984-07-19 | Mitsubishi Rayon Co Ltd | Master pellet composition containing nucleating agent for polyester resin and production thereof |
US4533690A (en) * | 1984-04-26 | 1985-08-06 | General Electric Company | Flame retardant polycarbonate compositions |
US8236904B2 (en) | 2005-12-28 | 2012-08-07 | Ethicon, Inc. | Bioabsorbable polymer compositions exhibiting enhanced crystallization and hydrolysis rates |
US8450431B2 (en) | 2005-12-28 | 2013-05-28 | Ethicon, Inc. | Bioabsorbable polymer compositions exhibiting enhanced crystallization and hydrolysis rates |
US9173980B2 (en) | 2005-12-28 | 2015-11-03 | Ethicon, Inc. | Bioabsorbable polymer compositions exhibiting enhanced crystallization and hydrolysis rates |
US9238094B2 (en) | 2005-12-28 | 2016-01-19 | Ethicon, Inc. | Bioabsorbable polymer compositions exhibiting enhanced crystallization and hydrolysis rates |
Also Published As
Publication number | Publication date |
---|---|
JPS62761B2 (en) | 1987-01-09 |
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