Patent ID: 8217133

Claim:
A storage-stable flowable, one component polyurethane composition comprising (a) one or more isocyanate-terminated polyurethane prepolymers derived from one or more hydrocarbon ring-containing diisocyanates or triisocyanates and one or more polyols; (b) one or more metal salt complexes of methylenedianiline; and (c) one or more organic acid halide compounds having one or more acid halide groups, wherein the acid halide groups are present in a concentration of from about 100 parts per million to about 20,000 parts per million by weight of the polyurethane prepolymer, prepared by a process comprising adding one or more organic acid halide compounds having one or more acid halide groups, to one or more isocyanate-terminated polyurethane prepolymers, said prepolymer prepared from a polyol and a hydrocarbon ring-containing diisocyanate or triisocyanate, to form a prepolymer/acid halide mixture, mixing said mixture, and then adding to the mixture, under agitation, one or more metal salt complexes of methylenedianiline and mixing to obtain the storage-stable flowable, one component polyurethane composition, which composition has a viscosity below 100,000 centipoise at 50° C., and remains flowable and non-elastomeric, as determined at about 50° C., for at least ninety days at a temperature of about 35° C., and at least about fourteen days at a temperature of about 50° C. to about 70° C. which composition forms a polyurethane elastomer product upon heating to a temperature in a range of about 100° C. to 150° C.