Liquid diphenylmethane diisocyanate

Details Liquid diphenylmethane diisocyanate Liquid diphenylmethane diisocyanate

C - Chemistry, Metallurgy

07

C

C07C 275/60 (2006.01) C08G 18/10 (2006.01) C08G 18/12 (2006.01) C08G 18/78 (2006.01)

Patent

CA 2128345

The present invention relates to a stable, liquid MDI prepolymer containing an allophanate-modified MDI, having an NCO content of 12 to 32.5% comprising a reaction product of an aliphatic alcohol and diphenylmethane diisocyanate comprising about 2 to 60% by weight 2,4'-diphenylmethane diisocyanate and less than 6% by weight of the 2,2'-diphenylmethane diiso- cyanate, and the rest being 4,4'-diphenylmethane diisocyanate.

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