GB924247A - Improvements in or relating to the manufacture of unsaturated polyester resins - Google Patents
Improvements in or relating to the manufacture of unsaturated polyester resinsInfo
- Publication number
- GB924247A GB924247A GB4376459A GB4376459A GB924247A GB 924247 A GB924247 A GB 924247A GB 4376459 A GB4376459 A GB 4376459A GB 4376459 A GB4376459 A GB 4376459A GB 924247 A GB924247 A GB 924247A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glycol
- acid
- relating
- manufacture
- ester
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Unsaturated polyesters are made by effecting ester-interchange between dimethyl itaconate and a glycol and polycondensing the resulting glycol ester. The glycol may be ethylene-, propylene- or diethylene-glycol and the reaction mixture may also contain a saturated dicarboxylic acid or anhydride (e.g. adipic acid, isophthalic acid or phthalic anhydride). Catalysts for the reaction are the oxides or borates of zinc, lead or magnesium, boric acid and aromatic sulphonic acids. The polyesters may be copolymerized with vinyl monomers (e.g. styrene) in the presence of a vinyl polymerization catalyst (e.g. benzoyl peroxide or hydroperoxide or methyl ethyl ketone peroxide) and an accelerator (e.g. a manganese or cobalt salt). Specification 924,248 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT48659 | 1959-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB924247A true GB924247A (en) | 1963-04-24 |
Family
ID=11098803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4376459A Expired GB924247A (en) | 1959-01-12 | 1959-12-23 | Improvements in or relating to the manufacture of unsaturated polyester resins |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB924247A (en) |
-
1959
- 1959-12-23 GB GB4376459A patent/GB924247A/en not_active Expired
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