Polysiloxane-grafted copolymer non-pressure sensitive topical binder composition and method of coating therewith

Abstract

This invention relates to non-pressure sensitive topical binder compositions comprising a copolymer having a vinyl polymerica backbone with grafted pendant siloxane polymeric moieties and to a method of topically coating animals therewith.

We claim: 
     
       1. A hair composition .Iadd.for topical application of medicaments to the hair of animals .Iaddend.comprising the following ingredients: (a) a copolymer having a Tg of at least 20.0° C. which comprises repeating A, B, and C monomers wherein: A is at least one free radically polymerizable methacrylic monomer present as at least 30% by weight of all monomer present;   B is at least one polar monomer copolymerizable with and different from A, the amount by weight of B monomer being from 3 to 30% of the total weight of all monomers in said copolymer; and   C is a monomer present as from 3 to 30% by weight of all monomer present and having the general formula:   X(Y).sub.n Si(R).sub.3--m Z.sub.m          wherein X is a vinyl group copolymerizable with the A and B monomers;   Y is a divalent linking group;   R is hydrogen, lower alkyl, aryl, or alkoxy;   Z is a monovalent siloxane polymeric moiety having a number average molecular weight of at least about 500 and is essentially unreactive under copolymerization conditions;   n is zero or 1;   m is an integer of from 1 to 3; and     (b) a medicinally effective amount of a medicament .[.or a cosmetically effective amount of a conditioner or cosmetically active ingredient.]., wherein (a) and (b) are present as a solution, dispersion, or emulsion in liquid carrying medium.     
     
     
       2. A composition of matter according to claim 1 wherein said monomer A is a methacrylic acid ester of an alcohol having from 1 to 18 carbon atoms with the average number of carbon atoms being about 4 to 12. 
     
     
       3. A composition of matter according to claim 1 wherein said monomer B is selected from a group consisting of acrylic acid, acrylamide, methacrylic acid, N-vinyl pyrrolidone, acrylonitrile, and poly(styrene) macromonomer. 
     
     
       4. A composition of matter according to claim 1 wherein said B monomer comprises about 2% to about 15% by weight of all monomers in said copolymer. 
     
     
       5. A composition of matter according to claim 1 wherein said X group of said C monomer has the general formula ##STR6## wherein R 1  is hydrogen or a COOH group of and R 2  is hydrogen, a methyl group, or a CH 2  COOH group. 
     
     
       6. A composition of matter according to claim 1 wherein said C monomer has a general formula selected from the group consisting of: ##STR7## wherein: R" is alkyl or hydrogen; m is 1, 2 or 3;   p is zero or 1;   q is an integer from 2 to 6;   s is an integer from 0 to 2.