Isp Investments Inc.

Gaf Chemicals Corporation

Herbert A Lieberman

John J Merianos

Paul Garelick

Robert B Login

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.

Water soluble polymers having antifungal properties

A toothpaste composition is provided which includes the strontium salt of maleic anhydride-methyl vinyl ether copolymer. This ingredient is capable of desensitizing the nerve endings of a tooth in saliva or water because of an extension of the contact time of the strontium on the tooth surface.

Toothpaste composition containing strontium salt of maleic

What is provided herein is a method for reducing the microbial content of surfaces which comprises contacting said surface with a microbiocidal amount of a substantially anhydrous complex of PVP and H.sub.2 O.sub.2.

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Livingston, NJ, United States of America

Herbert A Lieberman