Sulfonated isocyanate compositions

Details Sulfonated isocyanate compositions Sulfonated isocyanate compositions

1972-08-14

1976-12-21

Mars, Howard T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

156 628, 156 77, 112123, 2521883R, 260 9, 260 37N, 260 47CB, 260 49, 260 75NR, 260 775AP, 260858, 260453AR, 260455R, 260 292TN, 429122, 428224, 428288, 428310, 428423, 427337, C07C14940

Patent

active

039988716

ABSTRACT:
Chain-extendible, sulfonated isocyanate-terminated polyurethane-type prepolymers are obtained by treating the prepolymers with a strong sulfonating agent selected from H.sub.2 SO.sub.4, SO.sub.3, CISO.sub.3 H, and mixtures thereof.

REFERENCES:
Bieber I J. Am. Chem., Soc. 75 1405 (1953).
Bieber II J. Am. Chem. Soc. 75 1409 (1953).

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