Personal care composition preservatives level optimization

Abstract

The present invention is direct to a hair care composition comprising from about 8 to about 17% of one or more surfactants; from about 0.1-0.25% of salicylate salts or acids; from about 0.1-0.25% of benzoate salts or acids wherein there is a weight ratio of about 1:1 to 2.5:1 for the salicylate salts or acids to sodium benzoate salts or acids.

What is claimed: 
     
         1 . A hair care composition comprising:
 a. from about 10 to about 17% of one or more surfactants, wherein at least one of the surfactants has a branched alkyl chain or a linear alkyl chain of less than C12;   b. from about 0.1-0.25% of salicylate salts or acids;   c. from about 0.1-0.25% of benzoate salts or acids
 wherein there is a weight ratio of about 1:1 to 2.5:1 for the salicylate salts or acids to sodium benzoate salts or acids. 
   
     
     
         2 . A hair care composition according to  claim 1  where the salicylate salts or acids is from about 0.1 to 0.2%. 
     
     
         3 . A hair care composition according to  claim 1  wherein the salicylate salts or acids is from about 0.1 to 0.18%. 
     
     
         4 . A hair care composition according to  claim 1  wherein the salicylate salts or acids is sodium salicylate. 
     
     
         5 . A hair care composition according to  claim 1  wherein the benzoate salts or acids is sodium benzoate. 
     
     
         6 . A hair care composition according to  claim 1  wherein the benzoate salts or acids is from about 0.1 to 0.2%. 
     
     
         7 . A hair care composition according to  claim 1  wherein the benzoate salts or acids is from about 0.1 to 0.18%. 
     
     
         8 . A hair care composition according to  claim 1  wherein there is a weight ratio of about 1:1 to 2:1 of the salicylate salts or acids to the benzoate salts or acids. 
     
     
         9 . A hair car composition according to  claim 1  wherein there is a weight ratio of about 1:1 to 1.5:1 of the salicylate salts or acids to the benzoate salts or acids. 
     
     
         10 . A hair care composition according to  claim 1  wherein there is a weight ratio of about 1:0.9 to 2:1 of the salicylate salts or acids to the benzoate salts or acids. 
     
     
         11 . A hair care composition according to  claim 1  wherein there is a weight ratio of about 1:0.8 to 2:1 of the salicylate salts or acids to the benzoate salts or acids. 
     
     
         12 . A hair care composition according to  claim 1  wherein there is a weight ratio of about 1:0.75 to 2:1 of the salicylate salts or acids to the benzoate salts or acids. 
     
     
         13 . A hair care composition according to  claim 1  wherein there is a weight ratio of about 1:0.8 to 1.5:1 of the salicylate salts or acids to the benzoate salts or acids. 
     
     
         14 . A hair care composition according to  claim 1  wherein the composition has a pH less than or equal to about 6. 
     
     
         15 . A hair care composition according to  claim 14  wherein the pH of the composition is greater than 4.5 and less than about 6. 
     
     
         16 . A hair care composition according to  claim 1  wherein the composition provides a net change in bacteria log reduction of 0.5 or greater in comparison to an unpreserved control. 
     
     
         17 . A hair care composition according to  claim 1  wherein the composition provides a net change in yeast and/or mold log reduction of 0.5 or greater in comparison to an unpreserved control. 
     
     
         18 . A hair care composition according to  claim 1  wherein the composition provides a net change in bacteria log reduction of 0.5 or greater and yeast and/or mold log reduction of 0.5 or greater in comparison to an unpreserved control. 
     
     
         19 . A hair care composition according to  claim 1  wherein the composition provides a net change in bacteria log reduction of 0.5 or greater in comparison to an unpreserved control at the 2-day timepoint. 
     
     
         20 . A hair care composition according to  claim 1  wherein the composition provides a net change in yeast and/or mold log reduction of 0.5 or greater in comparison to an unpreserved control at the 7-day timepoint. 
     
     
         21 . A hair care composition according to  claim 1  wherein the composition provides a net change in bacteria log reduction of 0.5 or greater in comparison to an unpreserved control at the 2-day timepoint and yeast and/or mold log reduction of 0.5 or greater in comparison to an unpreserved control at the 7-day timepoint. 
     
     
         22 . A hair care composition according to  claim 1  wherein the composition further comprising one or more soluble antidandruff agents. 
     
     
         23 . A hair care composition according to  claim 22  wherein the one or more soluble antidandruff agents is hydroxyl pyridone. 
     
     
         24 . A hair care composition according to  claim 23  wherein the hydroxyl pyridone is piroctone olamine. 
     
     
         25 . A hair care composition according to  claim 22  wherein the one or more soluble antidandruff agents is an azole. 
     
     
         26 . A hair care composition according to  claim 25  wherein the azole is climbazole. 
     
     
         27 . A hair care composition according to  claim 22  wherein the one or more soluble antidandruff agents is from about 0.01% to about 10%. 
     
     
         28 . A hair care composition according to  claim 22  wherein the one or more soluble antidandruff agents is from about 0.02% to about 8%. 
     
     
         29 . A hair care composition according to  claim 22  wherein the one or more soluble antidandruff agent is from about 0.05% to 5%. 
     
     
         30 . A hair care composition according to  claim 1  wherein the surfactant is an anionic surfactant or combinations of anionic surfactants. 
     
     
         31 . A hair care composition according to  claim 1  wherein at least one of the surfactants is an anionic surfactant or combinations of surfactants selected from the group consisting of anionic alkyl sulfates and alkyl ether sulfates and mixtures thereof. 
     
     
         32 . A hair care composition according to  claim 1  wherein the surfactant is a surfactant or combination of surfactants selected from the group consisting of, sodium decyl sulfate, sodium deceth-n sulfate where n is between about 0.5 to about 3.5, ammonium decyl sulfate, ammonium deceth sulfate, sodium undecyl sulfate, sodium undeceth-n sulfate where n is between 0.5 to about 3.5, ammonium undecyl sulfate, ammonium undeceth sulfate, sodium tridecyl sulfate, sodium trideceth-n sulfate where n is between about 0.5 to about 3.5, anionic alkyl sulfates or alkyl ether sulfates having branched alkyl chains synthesized from C8 to C18 branched alcohols derived from butylene or propylene, anionic alkyl sulfates or alkyl ether sulfates having branched alkyl chains synthesized from Guerbet alcohols, aldol condensation derived alcohols, or oxo alcohols, an anionic surfactant selected from the group consisting of:
 a. R 1  O(CH 2 CHR 3 O) y  SO 3 M; 
 b. CH 3  (CH 2 ) z  CHR 2  CH 2  O (CH 2  CHR 3 O) y  SO 3 M; and 
 c. mixtures thereof,
 where R 1  represents CH 3  (CH 2 ) 10 , R 2  represents H or a hydrocarbon radical comprising 1 to 4 carbon atoms such that the sum of the carbon atoms in z and R 2  is 8, R 3  is H or CH 3 , y is 0 to 7, the average value of y is about 1 when y is not zero (0), and M is a monovalent or divalent, positively-charged cation. 
 
 
     
     
         33 . A hair care composition according to  claim 1  wherein the surfactant or combinations of surfactants are substantially free of sulfate-based surfactants. 
     
     
         34 . A hair care composition according to  claim 1  wherein the surfactant is a surfactant or combinations of surfactants that is selected from the group consisting of amino acid based anionic surfactants, sulfosuccinates, isethionates, sulfonates, sulfoacetates, sulfolaurates, glucose carboxylates, alkyl ether carboxylates, acyl taurates, lactates, lactylates and mixture thereof. 
     
     
         35 . A hair care composition according to  claim 1  wherein one or more surfactants is present from about 10% to about 16%. 
     
     
         36 . A hair care composition according to  claim 1  wherein one or more surfactants is present from about 10% to about 15%. 
     
     
         37 . A hair care composition according to  claim 1  wherein one or more surfactants is present from about 10% to about 14%. 
     
     
         38 . A hair care composition according to  claim 1  wherein one or more surfactants is present from about 10% to about 13%. 
     
     
         39 . A hair care composition according to  claim 1  further comprising from about 0.25% to about 15% of one or more amphoteric, nonionic or zwitterionic co-surfactants. 
     
     
         40 . A hair care composition according to  claim 1  further comprising one or more cationic polymers selected from the group consisting of a cationic guar polymer, a cationic non-guar galactomannan polymer, a cationic tapioca polymer, a cationic copolymer of acrylamide monomers and cationic monomers, a synthetic, non-crosslinked, cationic polymer, which may or may not form lyotropic liquid crystals upon combination with the detersive surfactant, a cationic cellulose polymer and mixtures thereof. 
     
     
         41 . A hair care composition according to  claim 40  wherein the one or more cationic polymer is selected from the group consisting of guar hydroxypropyltrimonium chloride, salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide, a cationic copolymer of acrylamide monomers and cationic monomers, a synthetic, non-crosslinked, cationic polymer, which may or may not form lyotropic liquid crystals upon combination with the detersive surfactant. 
     
     
         42 . A hair care composition according to  claim 40  wherein the one or more cationic polymers is from about 0.08% to about 3%. 
     
     
         43 . A hair care composition according to  claim 40  wherein the one of more cationic polymers is from about 0.1% to about 2%. 
     
     
         44 . A hair care composition according to  claim 40  wherein the one of more cationic polymers is from about 0.2% to about 1%. 
     
     
         45 . A hair care composition according to  claim 1  further comprising from about 0.01% to about 10% of one or more thickening polymers; 
     
     
         46 . A hair care composition according to  claim 45  wherein the one or more thickening polymer is selected from the group consisting of homopolymers based on acrylic acid, methacrylic acid or other related derivatives, alkali swellable and hydrophobically-modified alkali swellable acrylic copolymers or methacrylate copolymers, soluble crosslinked acrylic polymers, associative polymeric thickeners and mixtures thereof. 
     
     
         47 . A hair care composition according to  claim 1  further comprising one or more scalp health agents. 
     
     
         48 . A hair care composition according to  claim 47  wherein one or more scalp health agents is selected from the group consisting of sulfur, menthol, menthyl lactate and mixtures thereof. 
     
     
         49 . A hair care composition according to  claim 47  wherein the one or more scalp health agents is polyvalent metal salts of pyrithione. 
     
     
         50 . A hair care composition according to  claim 49  wherein the one or more scalp health agents is zinc pyrithione. 
     
     
         51 . A hair care composition according to  claim 47  wherein the one or more scalp health agents is from about 0.01% to 10%. 
     
     
         52 . A hair care composition according to  claim 47  wherein the one or more scalp health agents is from about 0.05% to 9%. 
     
     
         53 . A hair care composition according to  claim 47  wherein the one or more scalp health agents is from about 0.1% to 8%.