Polyisocyanate compositions and their use in the preparation...

C - Chemistry – Metallurgy – 08 – G

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400/111, 403/44

C08G 18/10 (2006.01) C08G 18/48 (2006.01) C08G 18/76 (2006.01)

Patent

CA 2027354

Polyisocyanate compositions comprising: (a) from 90 to 50% by weight of the reaction product between an organic diisocyanate and a polyether-polyol of functionality of at least 2, and wherein said reaction product has a content of free NCO radicals within the range of from 26.5 to 33% by weight; and (b) from 10 to 50% by weight of polymethylene-polyphenyl- polyisocyanates.

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