Air-driable alkyd resins and process for their preparation
US4335027A · kind A · utility
10Cited by
12References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1981 |
| Grant date | Jun 15, 1982 |
| Priority date | — |
| Expiry date | Apr 27, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D167/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Air-driable alkyd resins are prepared by reacting substantially equimolar a dicarboxylic acid anhydride and a glycidyl ester of a primary fatty acid, at least part of the ester having a--CH.dbd.CH--linkage not .alpha..beta. to the carboxyl group residue of the fatty acid residue. The glycidyl ester may be used alone or in admixture with a glycidyl ether or ephichlorohydrin. Polymerization is effected at relatively low temperatures (100.degree. C. or less) using a catalyst, which is preferably a stannous or zinc carboxylate. The resins produced are substantially color-free and have a narrow range of molecular weights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.