Process for the preparation of stable dispersions

Details Process for the preparation of stable dispersions Process for the preparation of stable dispersions

C - Chemistry, Metallurgy

08

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400/100, 400/734

C08L 75/00 (2006.01) C08G 18/08 (2006.01) C08G 18/30 (2006.01) C08G 18/40 (2006.01) C08G 18/84 (2006.01) C08J 3/00 (2006.01)

Patent

CA 1081385

Abstract of the Disclosure This invention relates to a process for the in situ preparation of stable dispersions of polyisocyanate-polyaddi- tion products in hydroxyl containing compounds as dispersing agent by a process which comprises reacting (1) organic polyisocyanates with (2) compounds having primary and/or secondary amino groups and/or primary hydroxyl groups and/or ammonia, in (3) compounds having at least on hydroxyl group, wherein compounds (3) have secondary hydroxyl groups in cases when compounds (20 have primary hydroxyl groups and wherein the components are reacted in the presence of more than 4% by weight of water, based on the quantity of reaction mixture including water.

265541

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