Patent ID: 6617394
Filing Date: 2003-09-09
Classification: C08L

Abstract:
A resin composition comprisingA. an unsaturated polyester resin, B. a thermoplastic low profile additive selected from the group consisting of polyurethanes, polyvinylacetates, polyacrylates, polymethacrylates, saturated polyesters, styrene polymers and mixtures thereof, C. an olefinically unsaturated monomer capable of copolymerizing with the unsaturated polyester resin, and D. a polycapped oligomer having a number average molecular weight of less than 2000 which is incompatible with the curing unsaturated polyester resin and the olefinically unsaturated monomer, where the polycapped oligomer is prepared by capping a dimer acid with a glycol, a polyether polyol or mixture thereof.