Liquid prepolymer compositions

Details Liquid prepolymer compositions Liquid prepolymer compositions

C - Chemistry, Metallurgy

08

G

400/111, 403/44

C08G 18/10 (2006.01) C08G 18/42 (2006.01) C08G 18/76 (2006.01) C08K 5/01 (2006.01)

Patent

CA 2026014

ABSTRACT E 35551 "Liquid Prepolymer Compositions" A bitumen-free liquid prepolymer composition comprising : a) from 50 to 99% by weight of an isocyanate-containing prepolymer obtained by the reaction of a stoichiometric excess of diphenylmethane diisocyanate with an organic compound containing a plurality of isocyanate-reactive groups, and b) from 50 to 1% by weight of a substituted diphenylmethane compound which is free from ester groups, isocyanate groups and isocyanate-reactive groups and has a melting point below 25°C, a boiling point above 150°C and a fire point above 100°C. The composition has a good stability and is useful for preparing elastomers and foams.

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