Patent ID: 7750058

Claim:
A rigid polyurethane foam composite comprising (1) a rigid polyurethane foam having at least an 80% closed-cell content and comprising the reaction product of: (a) at least one polyol mixture comprising: (i) at least one polymer polyol, (ii) at least one polyol having a hydroxyl value within the range of from about 200 to about 800, and (iii) optionally, at least one polyol having a hydroxyl value within the range of from about 25 to about 115; with (b) at least one polymeric isocyanate and/or a prepolymer thereof, in the presence of (c) optionally, at least one catalyst, (d) water, and (e) optionally, at least one additive or auxiliary agent, wherein the foam has a perpendicular compressive strength within the range of from about 35 to about 150 lbs/in 2 and a tensile adhesion greater than about 105 lbs/in 2 , and (2) one or more facer substrates, in which said rigid polyurethane foam is adhered to said one or more facer substrates.