Patent ID: 7276288
Filing Date: 2007-10-02
Classification: C08G,C09D,Y10T

Abstract:
1. A coating composition comprising a binder consisting essentially of: a. polyisocyanate crosslinking agent; b. 1 to 50% by weight, based on the weight of the binder, of a urethane oligomer consisting essentially of the reaction product of the isocyanurate of hexane diisocyanate with cyclohexanol and dimethylol propionic acid; and c. optionally, a polymeric component having a number average molecular weight of 5,000 to 50,000 and having reactive groups that crosslink with an isocyanate, where the reactive groups are selected from the group consisting of hydroxyl, carboxyl, glycidyl, amine and any mixtures thereof; and d. optionally, an oligomeric component having a number average molecular weight of 300 to 3,000 having reactive groups that crosslink with an isocyanate, where the reactive groups are hydroxyl, carboxyl, glycidyl, amine, aldimines, phosphoric acid, ketimine and any mixtures thereof; and e. additives consisting of: (1) a hydroperoxide decomposer, (2) an ultraviolet light absorber, and (3) a hindered amine light stabilizer.