GB1121936A - Improvements in or relating to polyester resins - Google Patents
Improvements in or relating to polyester resinsInfo
- Publication number
- GB1121936A GB1121936A GB2193366A GB2193366A GB1121936A GB 1121936 A GB1121936 A GB 1121936A GB 2193366 A GB2193366 A GB 2193366A GB 2193366 A GB2193366 A GB 2193366A GB 1121936 A GB1121936 A GB 1121936A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- prepared
- polyester resins
- resin
- anhydride
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/52—Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
- C08G63/54—Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation the acids or hydroxy compounds containing carbocyclic rings
Abstract
Orthophthalic anhydride or derivatives thereof are stripped from an unsaturated polyester resin (e.g. one prepared using phthalic and maleic anhydride) which has been prepared by a polycondensation reaction carried out at atmospheric pressure or above; the resin is subjected, prior to admixture with styrene or another monomer, to a vacuum of 0-50 mm. Hg absolute, at 160-240 DEG C., for 1 second to 30 minutes. The resultant product has less tendency to crazing when immersed in water.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2193366A GB1121936A (en) | 1966-05-17 | 1966-05-17 | Improvements in or relating to polyester resins |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2193366A GB1121936A (en) | 1966-05-17 | 1966-05-17 | Improvements in or relating to polyester resins |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1121936A true GB1121936A (en) | 1968-07-31 |
Family
ID=10171243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2193366A Expired GB1121936A (en) | 1966-05-17 | 1966-05-17 | Improvements in or relating to polyester resins |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1121936A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6444782B1 (en) | 1999-04-26 | 2002-09-03 | Eastman Chemical Company | Process for making pre-gels for a cross-linked branched polyester |
US6469129B1 (en) | 1999-04-26 | 2002-10-22 | Eastman Chemical Company | Process for crosslinked branched polyesters |
-
1966
- 1966-05-17 GB GB2193366A patent/GB1121936A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6444782B1 (en) | 1999-04-26 | 2002-09-03 | Eastman Chemical Company | Process for making pre-gels for a cross-linked branched polyester |
US6469129B1 (en) | 1999-04-26 | 2002-10-22 | Eastman Chemical Company | Process for crosslinked branched polyesters |
US6592913B2 (en) | 1999-04-26 | 2003-07-15 | Eastman Chemical Company | Crosslinked branched polyesters |
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