Allophanate modified diphenylmethane diisaocyanates,...

Details Allophanate modified diphenylmethane diisaocyanates,... Allophanate modified diphenylmethane diisaocyanates,...

C - Chemistry, Metallurgy

07

C

C07C 275/60 (2006.01) C07C 273/18 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01) C08G 18/78 (2006.01) C08G 18/80 (2006.01) C09D 175/04 (2006.01)

Patent

CA 2637505

This invention relates to novel allophanate-modifed diphenylmethane diisocyanates, prepolymers of these allophanate--modified diphenyimethane diisocyanates, and two-component polyureas and one-component polyureaurethanes prepared from these prepolymers. In addition, the invention also relates to processes for the preparation of these various compositions, and to the preparation of sealants from the two-component polyureas and caulking agents from the one-component polyureaurethanes.

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