Glycidyl ester by reacting COOH polyester with epihalohydrin
US6451929B1 · kind B1 · utility
4Cited by
1References
13Claims
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Key dates
| Filing date | Aug 24, 2000 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Aug 24, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/914
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A glycidyl ester is produced by reacting a carboxyl-functional polyester having an acid value of less than 280 mg KOH/gram with excess epihalohydrin in the presence of a base and, optionally, a catalyst, wherein the carboxyl-functional polyester is produced by reacting(a) at least one cyclohexyl anhydride A;(b) at least one compound B containing two (cyclo)aliphatic hydroxyl groups which is a di-secondary or di-primary hydroxyl compound, and if C is present, monoepoxide D which is a monoglycidyl ester of an &agr;,&agr;-branched, C5-C19 carboxylic acid; and, optionally,(c) at least one di-secondary carboxylic acid or anhydride C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.