Patent ID: 6830804
Filing Date: 2004-12-14
Classification: C08G,C08L,Y10T

Abstract:
A curable thermoset resin composition, comprising:(A) at least 5 wt. % of at least one unsaturated polyetherester resin at least partially end-capped with an aromatic polyol comprising at least one non-primary hydroxy group, the aromatic polyol represented by the formula wherein Ar1, Ar2 and Ar3 each independently represents an aromatic group; R1, R2 and R3 each independently represents a non-aromatic predominantly hydrocarbyl group; each X and Xâ€² independently represents a hydrocarbylene group, a hydrocarbylidene group, a divalent heteroatom or group, an ester linkage, or a combination thereof; each Xâ€² can also represent a covalent bond; h and k each independently represent an integer equal to 0 or 1; j represents an integer in the range from 0 to 5; and m, n, and p each independently represent an integer in the range from 1 to 5, provided that at least one hydroxy group of formula (I) is a nonprimary hydroxy group; (B) at least one unsaturated polyester resin having a number average molecular weight to the average number of double bonds per polymer molecule in the range from about 200 to about 400, in an amount such that the weight ratio of polyester resin (B) to polyetherester resin (A) is in the range from about 10:90 to about 90:10; (C) about 10 to about 70 wt. % of at least one vinyl monomer; and (D) at least one curing agent.