Hydrolysis resistant vinyl lactam amino acrylamide polymers

Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions – Amphoteric or zwitterionic surfactant containing

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424 78, 424DIG2, 424 71, A61K 711

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active

049236946

ABSTRACT:
The invention relates to a hydrolysis resistant, high molecular weight polymer represented by the formula ##STR1## wherein R is alkylene having from 3 to 8 carbon atoms which is optionally substituted with lower alkyl; R.sub.1 and R.sub.2 are each hydrogen or methyl; wherein R.sub.7 and R.sub.8 are each alkylene having from 1 to 18 carbon atoms and are optionally substituted with alkyl; the sum of r and t is one or two; R.sub.4 and R.sub.5 are each independently lower alkyl; R.sub.6 is alkyl, aralkyl or alkaryl having from 1 to 8 carbon atoms or N-alkylene lactam having from 3 to 8 carbon atoms; X.sup.- is an anion derived from the group of halogen, SO.sub.3, SO.sub.4, HSO.sub.4 and R.sub.6 SO.sub.4 ; M is a copolymerizable vinyl monomer; n has a value of from 10 to 99 mole %; m has a value of from 1 to 90 mole %; p has a value of from 0 to 20 mole % and the sum of m+n+p is 100; q and q' have the same value which is 0 or 1; s is the reciprocal of the number of negative charges in X; and the total amount of monomer represented by subscript m can be from 1% to 100% quaternized. The invention also relates to a process for the preparation of the polymer containing low residual monomer and to uses of the polymer.

REFERENCES:
patent: 2344934 (1944-03-01), West
patent: 2980657 (1961-04-01), Melamed
patent: 3914403 (1975-10-01), Valan
patent: 3954960 (1976-05-01), Valan
patent: 4057533 (1977-11-01), Hort et al.
patent: 4521404 (1985-06-01), Lorenz et al.

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