Preparation of polymeric urethanes from dicarbamates

Details Preparation of polymeric urethanes from dicarbamates Preparation of polymeric urethanes from dicarbamates

1974-04-04

1976-04-13

Cockeram, H. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 75NH, 260 75NK, 260 775AB, 260 775TB, 260 775R, 260482B, 260859R, 427 13, C08G 1824, C08G 1880

Patent

active

039502856

ABSTRACT:
Polyurethanes or polyester polyurethanes are prepared by reacting a polycarbamic acid ester or a mixture of a polycarbamic acid ester and a polycarboxylic acid ester with an organic polyol in the presence of an organotin and/or organotin alkoxide catalyst at a temperature of about 60.degree. to 180.degree. C. Storage stable thermally curable compositions of these compounds are also presented.

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patent: 3676402 (1972-07-01), Matsui et al.
Schulz et al. Thermal Decomposition of Poly-(t-Butyl N-Vinyl Carbamate), ACS Polymer Reprint, Phoenix, Arizona (1966).

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