Reactive polyester resin based on a hydroxylated and/or epoxidized fatty acid triglyceride polyol for coatings with high solids content

Abstract

The invention relates to a hydroxylated and/or carboxylated polyester resin, which comprises, in its structure, ester units formed from a polyol component a) comprising at least one polyol a1) chosen from hydroxylated and/or epoxidized fatty acid triglycerides of general formula (I): R—CO2—(H)C—(CH2—CO2—R)2 (I), with R being the residue radical without a carboxyl group of a hydroxylated and/or epoxidized fatty acid RCO2H with R comprising from 13 to 21 carbon atoms and at least one hydroxyl and/or epoxy group. The invention also relates to a crosslinkable coating composition in an organic solvent medium comprising said resin, just like the coating which results from this use.

Dependencies are inferred from the claim text.