Thermoformable polyurethanes

Details Thermoformable polyurethanes Thermoformable polyurethanes

C - Chemistry, Metallurgy

08

G

C08G 18/65 (2006.01) C08G 18/42 (2006.01) C08G 18/44 (2006.01) C08G 18/66 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2079168

Mo3691-CIP MD-90-32-PU-CIP THERMOFORMABLE POLYURETHANES ABSTRACT OF THE DISCLOSURE This invention relates to thermoformable polyurethanes prepared by the reaction of (a) aliphatic or cycloaliphatic polyisocyanates, (b) 50 to 95 equivalent percent, relative to component (a), of a polyester, polycarbonate, and/or polyester carbonate diol having a molecular weight of from 2000 to 5000, (c) 5 to 50 equivalent percent, relative to component (a), of one or more diols having an average molecular weight of from 90 to 530, (d) optionally, a catalyst, and (e) optionally, inorganic fillers, wherein the ratio of isocyanate groups to hydroxyl groups is from 0.8:1 to 1.5:1. Mo3691CIP

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