Patent ID: 6617395
Filing Date: 2003-09-09
Classification: C09D

Abstract:
A low VOC, low tack gel coat composition comprising:(A) a unsaturated polyester resin derived from at least two reactants, one reactant of which is maleic anhydride, the resin characterized by: (a) a viscosity at 500 sâˆ’1 in styrene solution, at a concentration of 70% non-volatile matter, less than or equal to about 1750 cp; (b) a glass transition temperature greater than or equal to about 11Â° C.; and, (c) a weight average molecular weight, Mw, less than or equal to about 6,050; and, (B) up to about 34% by weight, based on the total weight of the composition, of an organic solvent capable of polymerization with the unsaturated polyester resin.