Low viscosity hair care composition

Abstract

This invention relates to a foamable concentrated hair care composition comprising an anionic surfactant and a co-surfactant. The hair care composition may further comprise a silicone, wherein the silicone particle size is less than about 10 microns. The hair care composition has a viscosity of from about 1 to about 3,000 cps.

What is claimed is: 
     
         1 . A hair care composition comprising:
 a. a surfactant system comprising:
 i) from about 10% to about 40% of one or more anionic surfactants; 
 ii) from about 1% to about 15% of one or more zwitterionic co-surfactants; wherein about 1% or more of the zwitterionic co-surfactants comprises a zwitterionic surfactant having a hydroxyl group in its molecular structure selected from the group consisting of: 
   a. alkyl amphoacetates   
       
         
           
           
               
               
           
         
         where R is C 6 -C 24  alkyl (saturated or unsaturated) or mixtures thereof and M +  is monovalent cation; 
         b. alkyl amphopropionates 
       
       
         
           
           
               
               
           
         
         where RCO=C 6 -C 24  acyl (saturated or unsaturated) or mixtures thereof and M + ═monovalent cation; 
         and mixtures thereof; 
         wherein the hair care composition has a viscosity of from about 1 centipoise to about 3,000 centipoise. 
       
     
     
         2 . The hair care composition of  claim 1 , wherein the anionic surfactant is selected from the group consisting of sodium lauryl sulfate, sodium laureth sulfate, and combinations thereof. 
     
     
         3 . The hair care composition of  claim 1 , wherein the anionic surfactant is selected from the group consisting of sodium laureth sulfate (where R is C 12  alkyl and M +  is Nat n=1-3), ammonium laureth sulfate (where R is C 12  alkyl, M +  is NH 3   + , n=1-3), sodium trideceth sulfate (where R is C 13  alkyl, M +  is Na + , and n=1-4); and mixtures thereof. 
     
     
         4 . The composition of  claim 1 , wherein the anionic surfactants are selected from the group consisting of:
 a. alkyl sulfates   
       
         
           
           
               
               
           
         
         where R is C 8 -C 24  alkyl (linear or branched, saturated or unsaturated) or mixtures thereof and M +  is monovalent cation, wherein the alkyl sulfate is selected from the group consisting of Sodium lauryl sulfate (where R is C 12  alkyl and M +  is Na + ), ammonium lauryl sulfate (where R is C 12  alkyl and M +  is NH 3   + ), sodium coco-sulfate (where R is coconut alkyl and M +  is Na + ) and mixtures thereof; 
         b. alkyl ether sulfates 
       
       
         
           
           
               
               
           
         
         where R is C 8 -C 24  alkyl (linear or branched, saturated or unsaturated) or mixtures thereof, n=1-12, and M +  is monovalent cation; 
         and mixture thereof. 
       
     
     
         5 . The hair care composition of  claim 1 , wherein the composition is a foam having a density of from about 0.025 g/cm 3  to about 0.30 g/cm 3 . 
     
     
         6 . The hair care composition of  claim 1 , further comprising a second zwitterionic co-surfactant selected from the group consisting of cocamidopropyl betaine, lauramidopropyl betaine, cocamide monoethanolamine, lauryl hydroxysultaine, sodium lauroamphoacetate, and mixtures thereof. 
     
     
         7 . The hair care composition of  claim 1 , wherein the anionic surfactant is sodium laureth sulfate with an average of one mole ethoxylate. 
     
     
         8 . The hair care composition of  claim 1 , wherein the concentration of the zwitterionic surfactant having a hydroxyl group in their molecular structure is from about 2% to 14% by weight. 
     
     
         9 . The hair care composition of  claim 1 , further comprising from 0.01% to about 4% of one or more silicone emulsion, wherein said silicone has a particle size less than about 10 micrometers. 
     
     
         10 . The hair care composition of  claim 1 , further comprising from about 0.05% to about 1% by weight of one or more cationic polymers has a weight average molecular weight of less than about 1.0 million g/mol. 
     
     
         11 . The hair care composition of  claim 10 , wherein the cationic polymer is selected from the group consisting of guar hydroxypropyl trimonium chloride, Polyquaternium-10, Polyquaterinum-6, and combinations thereof. 
     
     
         12 . The hair care composition of  claim 11 , having from about 0.1% to about 0.8% by weight of a cationic polymer. 
     
     
         13 . The hair care composition of  claim 1 , comprising from about 15% to about 36% by weight of an anionic surfactant. 
     
     
         14 . The hair care composition of  claim 1 , comprising from about 2% to about 14% by weight of a co-surfactant. 
     
     
         15 . The hair care composition of  claim 1 , further comprising from about 0.5% to about 30% by weight of a viscosity reducing agent. 
     
     
         16 . The hair care composition of  claim 1 , wherein the viscosity is from about 1 to about 2,500 cps. 
     
     
         17 . The hair care composition of  claim 1 , further comprising an anti-dandruff active. 
     
     
         18 . The hair care composition of  claim 1 , further comprising from about 1% to about 10% by weight of a propellant. 
     
     
         19 . A hair care composition comprising a surfactant system comprising:
 a. from about 10% to about 40% of one or more anionic surfactants wherein the anionic surfactants are selected from the group consisting of:
 i. alkyl sulfates 
   
       
         
           
           
               
               
           
         
         where R is C 8 -C 24  alkyl (linear or branched, saturated or unsaturated) or mixtures thereof and M +  is monovalent cation, wherein the alkyl sulfate is selected from the group consisting of sodium lauryl sulfate (where R is C 12  alkyl and M +  is Na + ), ammonium lauryl sulfate (where R is C 12  alkyl and M +  is NH 3   + ), sodium coco-sulfate (where R is coconut alkyl and M +  is Na + ) and mixtures thereof;
 ii. alkyl ether sulfates 
 
       
       
         
           
           
               
               
           
         
         where R is C 8 -C 24  alkyl (linear or branched, saturated or unsaturated) or mixtures thereof, n=1-12, and M +  is monovalent cation; 
         and mixture thereof; 
         b. from about 1% to about 15% of one or more zwitterionic co-surfactants; 
         wherein about 1% or more are zwitterionic surfactants selected from the group consisting of:
 i. alkyl amphoacetates 
 
       
       
         
           
           
               
               
           
         
         where R is C 6 -C 24  alkyl (saturated or unsaturated) or mixtures thereof and M +  is monovalent cation;
 ii. alkyl amphopropionates 
 
       
       
         
           
           
               
               
           
         
         where RCO=C 6 -C 24  acyl (saturated or unsaturated) or mixtures thereof and M + =monovalent cation; 
         and mixtures thereof; 
         wherein the hair care composition has a viscosity of from about 1 centipoise to about 3,000 centipoise. 
       
     
     
         20 . The hair care composition of  claim 19 , further comprising from about 2% to about 8% by weight of a propellant.