Process for the production of finely divided polyisocyanates...

Details Process for the production of finely divided polyisocyanates... Process for the production of finely divided polyisocyanates...

C - Chemistry, Metallurgy

07

C

402/182

C07C 275/00 (2006.01) C07C 273/18 (2006.01) C07C 275/40 (2006.01) C08G 18/70 (2006.01) C08G 18/78 (2006.01)

Patent

CA 1297227

PROCESS FOR THE PRODUCTION OF FINELY DIVIDED POLYISOCYANATES CONTAINING UREA GROUPS ABSTRACT OF DISCLOSURE The present invention is directed to a process for the preparation of finely divided solid polyiso- cyanates containing urea groups by reacting organic polyisocyanates which are free from urea groups with water in an aqueous emulsion, characterized in that the reaction is carried out in the presence of an emulsion- and dispersion-stabilizing compound. Le A 24 814

550868

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