Patent ID: 7834102

Claim:
A composition comprising a) one or more isocyanate functional polyether based prepolymers comprising the reaction product of: i) one or more polyisocyanates; ii) a mixture of one or more polyether diols and one or more polyether triols; and iii) a dispersion triol, wherein the triol is a polyoxyalkylene triol having a molecular weight of about 4,000 to about 8,000 and having a hydroxyl number of from about 30 to about 75, containing from about 10 to about 60 percent by weight based on the dispersion of organic polymer particles having a particle size of from about 10 to about 50 microns; b) one or more isocyanate functional polyester prepolymers wherein the one or more polyesters used to prepare the prepolymers having melting points of from about 40 to about 59° C.; c) one or more polyisocyanates having a nominal functionality of about 3 or greater; d) one or more nonconductive carbon blacks; and e) one or more catalysts for the reaction of isocyanate moieties with hydroxyl groups.