Unsatd polyester composns

摘要

Composns. comprises (1) a mixture of unsatd. polyesters and (2) olefinically unsatd. copolymerisable cpd(s). (1) consists of (a) 20-60 wt.% unsatd. polyester obtd. by condensation of polyhydric alcohols with alpha-olefinically unsatd. dibasic acids or anhydrides, and (b) 80-20 wt.% of an unsatd. polyester contg. in condensed form alpha-unsatd. dibasic acid residues and beta-unsatd. ether residues. Used for coatings impregnating and moulding cpds.