Isocyanate derivatives containing carbodiimide groups, a...

Details Isocyanate derivatives containing carbodiimide groups, a... Isocyanate derivatives containing carbodiimide groups, a...

C - Chemistry, Metallurgy

08

K

400/7401, 260/45

C08K 5/29 (2006.01) C08G 18/08 (2006.01) C08G 18/79 (2006.01) C08G 18/83 (2006.01) C08K 5/42 (2006.01)

Patent

CA 1271775

ISOCYANATE DERIVATIVES CONTAINING CARBODIIMIDE GROUPS, A PROCESS FOR THEIR PRODUCTION AND THEIR USE AS ADDITIVES FOR AQUEOUS SOLUTIONS OR DISPERSIONS OF PLASTICS ABSTRACT OF THE DISCLOSURE The present invention is directed to isocyanate derivatives containing about 2 to 30% by weight of carbodiimide groups, -N=C=N-, on a statistical average at least about 0.8 carbodiimide groups per molecule, about 5 to 200 milliequivalents per 100 g of solids of chemically incorporated sulfonate groups and, option- ally, 0 to about 25%, based on solids, of chemically incorporated ethylene oxide units, -CH2-CH2-O-, in polyether chains. The present invention is also directed to a process for the preparation of these isocyanate derivatives and to their use as additives for aqueous dispersions or solutions of plastics containing carboxyl groups or groups convertible into carboxyl groups.

505820

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