Cosmetic preparations

Abstract

A pearlescent composition containing: (a) a dialkyl ether corresponding to formula (I): R 1 —O—R 2   (I) wherein R 1 and R 2 independently of one another represent linear or branched alkyl and/or alkenyl groups having from 12 to 22 carbon atoms; (b) a cationic polymer; and (c) a fatty acid-N-alkyl polyhydroxyalkyl amide.

1 - 10  (cancelled).  
     
     
         11 . A pearlescent composition comprising: 
 (a) a dialkyl ether corresponding to formula (I):      R 1 —O—R 2   (I)    wherein R 1  and R 2  independently of one another represent linear or branched alkyl and/or alkenyl groups having from 12 to 22 carbon atoms;    (b) a cationic polymer; and    (c) a fatty acid-N-alkyl polyhydroxyalkyl amide.    
     
     
         12 . The composition of  claim 11  wherein the dialkyl ether is dialkyl stearate.  
     
     
         13 . The composition of  claim 11  wherein the cationic polymer is selected from the group consisting of cationic cellulose derivatives, cationic starches, copolymers of diallyl ammonium salts and acrylamides, quaternized vinyl pyrrolidone/vinyl imidazole polymers, condensation products of polyglycols and amines, quaternized collagen polypeptides, quaternized wheat polypeptides, polyethyleneimines, cationic silicone polymers, copolymers of adipic acid and dimethylaminohydroxypropyl diethylenetriamine, copolymers of acrylic acid with dimethyl diallyl ammonium chloride, polyaminopolyamides, cationic chitin derivatives, condensation products of dihaloalkyls with bis-dialkylamines, quaternized ammonium salt polymers, and mixtures thereof.  
     
     
         14 . The composition of  claim 11  wherein the fatty acid-N-alkyl polyhydroxyalkyl amide corresponds to formula (III):  
       
         
           
           
               
               
           
         
       
       wherein R 4 CO is an aliphatic acyl group containing from 6 to 22 carbon atoms, R 5  is an alkyl or hydroxyalkyl group containing from 1 to 4 carbon atoms and [Z] is a linear or branched polyhydroxyalkyl group containing from 3 to 12 carbon atoms and from 3 to 10 hydroxyl groups.  
     
     
         15 . The composition of  claim 11  containing from 1 to 15% by weight of the dialkyl ether, from 1 to 15% by weight of the cationic polymer, and from 70 to 98% by weight of the fatty acid-N-alkyl polyhydroxyalkyl amide, all weights being based on the total weight of the composition.  
     
     
         16 . The composition of  claim 11  wherein the dialkyl ether has an average particle size of from 0.1 to 20 Fm.  
     
     
         17 . A cosmetic composition comprising: 
 (a) from 0.1 to 5% by weight of a dialkyl ether corresponding to formula (I):      R 1 —O—R 2   (I)    wherein R 1  and R 2  independently of one another represent linear or branched alkyl and/or alkenyl groups having from 12 to 22 carbon atoms;    (b) from 0.1 to 5% by weight of a cationic polymer;    (c) from 1 to 50% by weight of a fatty acid-N-alkyl polyhydroxyalkyl amide; and    (d) remainder, water, all weights being based on the total weight of the cosmetic composition.    
     
     
         18 . A process for imparting pearlescent properties to a cosmetic composition comprising adding a pearlescent-effective amount of the pearlescent composition of  claim 11  to the cosmetic composition.  
     
     
         19 . The process of  claim 18  wherein the cosmetic composition is selected from the group consisting of a hair shampoo, a hair lotion, a foam bath, and a skin creme.