Patent ID: 7214757
Filing Date: 2007-05-08
Classification: C08G,G03G,Y10T

Abstract:
1. A polyurethane elastomer comprising the reaction product of: a polyisocyanate prepolymer formed by reacting an isocyanate with a polyol, said polyisocyanate prepolymer being present in an amount of from 45 to 70 weight percent based on total weight of the elastomer composition; a polyether polyol prepolymer present in an amount of from 25 to 50 weight percent based on total weight of the elastomer composition; and a hardener mixture comprising at least one additional polyol and at least one charge-control agent, the at least one charge control agent being a polyol capable of being copolymerized with the polyisocyanate prepolymer, the polyether polyol, and the hardener mixture, the hardener