Patent ID: 8003205

Claim:
A composite article comprising: (I) at least one layer comprising a sprayable polyurethaneurea composition which comprising: (A) an isocyanate prepolymer having an NCO group content of about 15 to about 30% by weight, and which comprises the reaction product of (1) one or more diphenylmethane diisocyanate which is optionally modified with allophanate groups and/or carbodiimide groups, with (2) a polyether polyol having a functionality of about 1.8 to about 3.5 and a molecular weight of about 1500 to about 8000; and (B) an isocyanate-reactive component comprising: (1) no more than 5% by weight of one or more high molecular weight polyether polyols having a functionality of about 1.8 to about 3.5 and a molecular weight of about 1500 to about 8000; (2) from about 90 to about 98% by weight of one or more crosslinking agents having a molecular weight of 200 to less than 1500 and a functionality of about 2.5 to about 8; and (3) from about 0.5 to 10% by weight of at least one chain extender having a functionality of about 2 and a molecular weight of about 60 to about 250; with the sum of the %'s by weight of (B)(1), (B)(2) and (B)(3) totaling 100% by weight of component (B); wherein components (A) and (B) are present in amounts such that the isocyanate index is about 95 to about 120 and (II) at least one polyurethaneurea foam layer which is sprayable and comprises the reaction product of a polyisocyanate component, an isocyanate-reactive component and water.