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US 5,209,922 AGranted
Water soluble polymers having antifungal properties
AssigneeISP Investments Inc.
InventorsJohn J. Merianos, Herbert A. Lieberman, Paul Garelick
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AssigneeISP Investments Inc.
InventorsJohn J. Merianos, Herbert A. Lieberman, Paul Garelick
Estimating the term…
This invention relates to an antifungal block copolymer of poly(vinyl lactam) having the formula ##STR1## where m has a value of from 1 to 3 and from about 15 to about 25 wt. % of a quaternized amino alkyl acrylamide comonomer wherein the quaternizing anion is in part halide --O--CO(CH.sub.2).sub.s CH.dbd.CHZ wherein s has a value of from 4 to 14 and Z is hydrogen or a C.sub.1 to C.sub.4 alkyl radical, which copolymer is comprised of the following units ##STR2## wherein m has a value of from 1 to 3; p has a value of from 1 to 5; r has a value of from 2 to 6; each of X and Y is hydrogen or a C.sub.1 to C.sub.4 alkyl and each of R.sub.1, R.sub.2 and R.sub.3 is C.sub.1 to C.sub.4 alkyl. The invention also relates to the use of the above polymers as antifungal agents.
The antifungal quaternized block polymer consisting essentially of between about 75 and about 85 wt. % poly (vinyl lactam) units of the formula ##STR9## and between about 15 and about 25 wt. % of quaternized amino alkyl acrylamide lactam units defined as ##STR10## wherein said anion is between about 10 and about 90 wt. % halide and the balance of between about 90 and about 10 wt. % is OCO(CH.sub.2).sub.s CH.dbd.CHZ and wherein m has a value of from 1 to 3;
Dependencies are inferred from the claim text.