Heterogeneous systems of polyol/diphenyl methane uret dione...

Details Heterogeneous systems of polyol/diphenyl methane uret dione... Heterogeneous systems of polyol/diphenyl methane uret dione...

C - Chemistry, Metallurgy

08

G

402/160

C08G 18/79 (2006.01) C08G 18/70 (2006.01) C08G 18/80 (2006.01)

Patent

CA 1191995

HETEROGENEOUS SYSTEMS OF POLYOL/DIPHENYL METHANE URET DIONE DIISOCYANATES AND A PROCESS FOR THEIR PRODUCTION ABSTRACT OF THE DISCLOSURE Storage stable heterogeneous systems which may be processed at low temperatures to form polyurethanes are made by mixing a specific quantity of a high molecular weight polyhydroxyl compound with a specified quantity of a 4,4'-diphenyl methane uret dione diisocyanate corresponding to a specified formula or a corresponding modified diisocyanate. A lead and/or tin catalyst is also included.

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