Ampholyte polymers for use in personal care products

Abstract

Novel conditioning polymers containing (meth) acrylamidopropyltrimethyl ammonium chloride, meth (acrylic acid) or 2-(meth)acrylamido-2-methylpropane sulfonic acid and, optionally, a C 1 -C 22 alkyl (meth) acrylate and the use thereof in a cosmetically acceptable medium for the treatment of a keratin-containing substrate are disclosed.

1. An ampholyte polymer comprising:
 a) about 25  35 to about 75  52.5 mol % APTAC or MAPTAC, alone or in combination  methacrylamidopropyltrimethyl ammonium chloride;  
 b) about 25  35 to about 75  52.5 mol % acrylic acid, methacrylic acid, AMPSA or MAMPSA, alone or in combination ; and  
 c) about 0.1  5 to about  20 mol % of a C 1 -C 22  straight or branched chain alkyl acrylate or methacrylate  methyl acrylate.  
 
     
     
       2. The polymer of  claim 1 , wherein said alkyl acrylate is methyl acrylate. 
     
     
       3. A cosmetically acceptable medium containing from about 0.1 to about 20%, based on the weight of said medium, of the polymer of  claim 1 . 
     
     
       4. The polymer of  claim 1 , wherein a) is MAPTAC and b) is acrylic acid. 
     
     
       5. The polymer of  claim 1 , wherein the molecular weight ranges from about 100,000 to about 10,000,000.