Patent ID: 8962142
Filing Date: 2015-02-24
Classification: C08G,C09D,C23F,Y10T

Abstract:
1. A polyisocyante based non-syntactic primer coating composition comprising the reaction product of (i) an organic polyisocyanate and (ii) a compound containing isocyanate-reactive hydrogen atoms wherein components (i) and (ii) are reacted at an isocyanate index from about 2400 to 10000% in the presence of a trimerisation catalyst; wherein the organic polyisocyanate is a semi-prepolymer or a prepolymer that is obtained by reacting (a) a polyisocyanate compound with (b) a compound containing isocyanate-reactive hydrogen atoms; and wherein component (ii) and component (b) may be the same or different and are selected from the group consisting of alcohols, glycols, polyether polyols, polyester polyols, mercaptans, amines, urea, and amides.