Personal Care Compositions Containing Cationic Synthetic Copolymer and a Detersive Surfactant

Abstract

A personal care composition comprising: a) a synthetic random copolymer having a net positive charge comprising; i.) a nonionic monomer unit of the following formula: where R is H or C 1-4 alkyl; and R 1 and R 2 are independently selected from the group consisting of H, C 1-4 alkyl, CH 2 OCH 3 , CH 2 OCH 2 CH(CH 3 ) 2 , and phenyl, or together are C 3-6 cycloalkyl; and ii.) a cationic monomer unit with 2 or more positive charges of the following formula: where k=1, each of v, v′, and v″ is independently an integer of from 1 to 6, w is zero or an integer of from 1 to 10, and X − is an anion. and; b) a detersive surfactant; and c) an aqueous carrier.

What is claimed is: 
     
         1 . A personal care composition comprising:
 a) a synthetic random copolymer having a net positive charge comprising;
 i) a nonionic monomer unit of the following formula: 
   
       
         
           
           
               
               
           
         
         
           where R is H or C 1-4  alkyl; and R 1  and R 2  are independently selected from the group consisting of H, C 1-4  alkyl, CH 2 OCH 3 , CH 2 OCH 2 CH(CH 3 ) 2 , and phenyl, or together are C 3-6 cycloalkyl; and 
           ii) a cationic monomer unit with 2 or more positive charges of the following formula: 
         
       
       
         
           
           
               
               
           
         
         
           where k=1, each of v, v′, and v″ is independently an integer of from 1 to 6, w is zero or an integer of from 1 to 10, and X −  is an anion; and 
           iii) wherein the synthetic random copolymer comprises from about 0.5 to about 50%, by weight, of the cationic monomer; 
         
         b) a detersive surfactant wherein said detersive surfactant comprises at least one anionic surfactant having an ethoxylate level and an anion level; wherein said ethoxylate level is from about 1 to about 4.12, and wherein said anion level is from about 1 to about 4.17; and 
         c) an aqueous carrier. 
       
     
     
         2 . A personal care composition according to  claim 1  wherein R, R 1  and R 2  of said nonionic monomer unit are H and further wherein v=3 and w=1 in said cationic monomer unit. 
     
     
         3 . A personal care composition according to  claim 1  wherein said synthetic random copolymer is present in an amount from about 0.01% to about 0.05%, by weight of said personal care composition. 
     
     
         5 . A personal care composition according to  claim 1 , wherein said detersive surfactant is selected from the group consisting of sulfates, sulfonates, sulfosuccinates, isethionates, carboxylates, phosphates, phosphonates and mixtures thereof. 
     
     
         6 . A personal care composition according to  claim 1 , wherein said detersive surfactant is selected from the group consisting of amphoteric surfactants, zwitterionic surfactants, cationic surfactants, nonionic surfactants and mixtures thereof. 
     
     
         7 . A personal care composition according to  claim 6  wherein said amphoteric or zwitterionic surfactant is selected from the group consisting of cocoamidopropyl betaine, coco betaine, cocoamphoacetate, cocoamphodiacetate, lauroamphoacetate, lauroamphodiacetate, lauramine oxide and mixtures thereof. 
     
     
         8 . A personal care composition according to  claim 1  wherein lather volume is from about 50 ml to about 500 ml at the 40 second measurement. 
     
     
         9 . A personal care composition according to  claim 1  wherein said synthetic random copolymer has a linear charge density from at least about 2 meq/A to about 500 meq/A. 
     
     
         10 . A personal care composition according to  claim 1  wherein said synthetic random copolymer has a mass charge density from about 0.1 meq/gm to about 6.0 meq/gm. 
     
     
         11 . A personal care composition according to  claim 1  wherein said synthetic random copolymer has a molecular weight from about 10,000 to about 2,000,000. 
     
     
         12 . A personal care composition according to  claim 1 , further comprising a cationic guar, cationic cellulose polymer, or a cationic modified starch polymer. 
     
     
         13 . A personal care composition according to  claim 1 , comprising at least one conditioning agent selected from the group consisting of silicone conditioning agents, hydrocarbon oils, polyolefins, fatty alcohols, fatty esters, and mixtures thereof. 
     
     
         14 . A personal care composition according to  claim 13 , wherein said silicone conditioning agent has a particle size of less than or equal to about 50 μm. 
     
     
         15 . A personal care composition according to  claim 14 , wherein said silicone conditioning agent is selected from the group consisting of organo-modified silicones and fluoro-modified silicones. 
     
     
         16 . A personal care composition according to  claim 1 , further comprising one or more additional components selected from the group consisting of anti-dandruff actives, particles, opacifying agents, suspending agents, paraffinic hydrocarbons, propellants, and a mono- or divalent salt. 
     
     
         17 . A personal care composition comprising:
 a) from about 0.01% to about 0.05%, by weight of said personal care composition, of a synthetic random copolymer having a net positive charge comprising;
 i) a nonionic monomer unit of the following formula: 
   
       
         
           
           
               
               
           
         
         
           where R is H or C 1-4  alkyl; and R 1  and R 2  are independently selected from the group consisting of H, C 1-4  alkyl, CH 2 OCH 3 , CH 2 OCH 2 CH(CH 3 ) 2 , and phenyl, or together are C 3-6 cycloalkyl; and 
           ii) a cationic monomer unit with 2 or more positive charges of the following formula: 
         
       
       
         
           
           
               
               
           
         
         
           where k=1, each of v, v′, and v″ is independently an integer of from 1 to 6, w is zero or an integer of from 1 to 10, and X −  is an anion; and 
           iii) wherein the synthetic random copolymer comprises from about 0.5 to about 50%, by weight, of the cationic monomer; 
         
         b) a detersive surfactant wherein said detersive surfactant comprises at least one anionic surfactant having an ethoxylate level and an anion level; wherein said ethoxylate level is from about 1 to about 10, and wherein said anion level is from about 1 to about 10; and 
         d) an aqueous carrier. 
       
     
     
         18 . The personal care composition of  claim 17  wherein said anionic surfactant has ethoxylate level of from about 1 to about 4.12, and an anion level of from about 1 to about 4.17. 
     
     
         19 . The personal care composition of  claim 17  comprising at least one conditioning agent selected from the group consisting of silicone conditioning agents, hydrocarbon oils, polyolefins, fatty alcohols, fatty esters, and mixtures thereof; and wherein said synthetic random copolymer has a molecular weight from about 10,000 to about 2,000,000. 
     
     
         20 . A personal care composition comprising:
 a) from about 0.01% to about 0.05%, by weight of said personal care composition, of a synthetic random copolymer having a net positive charge, a molecular weight of from about 400,000 to about 1,000,000 and a mass charge density of from about 0.5 meq/gm to about 3.0 meq/gm, said copolymer comprising:
 i) a nonionic monomer unit of the following formula: 
   
       
         
           
           
               
               
           
         
         
           where R, R 1  and R 2  are H; and 
           ii) a cationic monomer unit with 3 positive charges of the following formula: 
         
       
       
         
           
           
               
               
           
         
         
           where k=1, v and v″ are both 3, v′=1, w=1, and X −  is an anion; and 
           iii) wherein the synthetic random copolymer comprises from about 1 to about 30%, by weight, of the cationic monomer; 
         
         b) a detersive surfactant wherein said detersive surfactant comprises at least one anionic surfactant; 
         c) at least one conditioning agent selected from the group consisting of silicone conditioning agents, hydrocarbon oils, polyolefins, fatty alcohols, fatty esters, and mixtures thereof; and 
         d) an aqueous carrier.