Patent ID: 9085716
Filing Date: 2015-07-21
Classification: C08G,C08K,C09J

Abstract:
1. A composition comprising: (A) one or more isocyanate functional prepolymers having alkoxysilane moieties wherein the isocyanate content of the prepolymers is about 0.1 to about 10 percent by weight of the prepolymers and the alkoxy silane content of the prepolymers is from about 0.2 to about 3.0 percent by weight of the prepolymers and greater than 85 percent by weight of the isocyanate functional prepolymers present contain alkoxysilane moieties; (B) a catalytic amount of one or more compounds that catalyze the reaction of isocyanate moieties with moieties containing active hydrogen atoms; (C) carbon black in an amount of from about 15 to about 35 percent by weight of carbon black based on the total weight of the composition; (D) untreated calcium carbonate in an amount of about 5 to about 15 percent by weight based on the total weight of the composition having an average particle size of about 15 microns or less; and (E) one or more polyfunctional isocyanates.