Process for the production of modified polyisocyanates

Details Process for the production of modified polyisocyanates Process for the production of modified polyisocyanates

1976-11-23

1978-03-07

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 775AT, 260453A, 260453AB, 260453AL, 260453AR, 560158, 560115, 560 26, C07C12504

Patent

active

040779890

ABSTRACT:
The instant invention relates to a process for the production of novel modified polyisocyanates containing acylated urea groups and to the products obtained from this process. The process of the instant invention comprises reacting a compound containing isocyanate groups and carbodiimide groups with carboxylic acids in such quantities that from about 0.2 to about 1.2 gram equivalents of carboxyl groups are reacted per gram equivalent of carbodiimide groups.

REFERENCES:
patent: 3383400 (1968-05-01), Meisert et al.
patent: 3517039 (1970-06-01), Wagner et al.
patent: 3914269 (1975-10-01), Nersasian

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