| 摘要 |
The invention relates to a resin composition comprising a mixture of resins, a first resin of which consists of the reaction product of an epoxidized fatty acid ester of a polyvalent alcohol with a carboxylic acid and a second resin consists of an ester of a polyvalent alcohol, modified with carboxylic acid. The resin mixture, moreover, contains an unsaturated polyester resin having a molecular weight of 1200-20,000 per double bond and an acid number of 5-50, between 50% and 90% of the unsaturation being formed by a semi-ester of an alpha , beta -unsaturated dicarboxylic acid.
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