Urea polymer containing a sulfonate radical and method of prepar

Details Urea polymer containing a sulfonate radical and method of prepar Urea polymer containing a sulfonate radical and method of prepar

1978-02-17

1979-05-29

Welsh, Maurice J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

528 68, C08G 1838

Patent

active

041566750

ABSTRACT:
A urea compound having a sulfonate radical is obtained by reaction of aminoaminosulfonate represented by the formula: ##STR1## (where R.sub.1 is a hydrocarbon-based radical, and R.sub.3 is propylene radical, a substituted propylene radical, butylene radical or a substituted butylene radical) with diisocyanate, optionally in the presence of diamine and/or water. The reaction may be achieved by interfacial polymerization, solution polymerization, or solvent-free polymerization.

REFERENCES:
patent: 3687902 (1972-08-01), Perrino et al.
patent: 3870684 (1975-03-01), Witt et al.
patent: 3970599 (1976-07-01), Schwarcz et al.

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