Preparation of polyisocyanates of the trimer type

Details Preparation of polyisocyanates of the trimer type Preparation of polyisocyanates of the trimer type

C - Chemistry, Metallurgy

07

D

C07D 273/04 (2006.01) C07D 229/00 (2006.01) C07D 251/32 (2006.01) C08G 18/79 (2006.01)

Patent

CA 2658090

The invention relates to the use of heterocycles containing trivalent phosphorus as a ring member as catalysts for isocyanate modification and to a process for preparing polyisocyanates of the trimer type.

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