Personal care compostions containing inverse emulsion polymers

A personal care emulsion composition for topical application to the skin comprising:

• a) a continuous aqueous liquid phase;
• b) a non-aqueous liquid phase;
• c) an electrolyte tolerant inverse emulsion polymer composition comprising:
• i) from about 0.01 wt. % to about 10 wt. % of the total weight of the personal care composition of a polymer polymerized from a monomer composition comprising (1) from about 25 wt. % to about 99.9998 wt. % at least one pH sensitive monomer having ethylenic unsaturation and containing at least one carboxylic acid moiety, wherein at least 65 wt. % of said monomers containing said carboxylic acid moiety are neutralized;
• (2) from about 0.0001 wt. % to about 0.9 wt. % of a complex associative monomer having terminal end group ethylenic unsaturation, a hydrophilic midsection and a hydrophobic end portion;
• and (3) from about 0.0001 wt. % to about 2 wt. % based on the total weight of monomers present in the composition of a crosslinking monomer;
• wherein said wt. % ranges are based on the total weight of monomers present in said monomer composition;
• and wherein said complex associative monomer is selected from a monomer represented by the following structure:
• 5
• wherein A is selected from a divalent radical represented by —C(O)O—, —CH2C(O)O—, —O—, —CH2O—, —NHC(O)O—, —(CH2)m NHC(O)—, —NHC(O)NH—, —C(O)NH—, —C(O)NH(CH2)m—,
• 6
• B is selected from a divalent radical represented by —CH2CH2O—, —CH2CH(CH3)O—, —CH2CH2CH2O—, —C(O)—, —(CH2)mNHC(O)—, and —(CH2)mNHC(O)NH—, wherein m represents an integer from 0 to 18;
• R1 is selected from H, —CH3 and —COOH;
• R2 is selected from H, —CH3 and —COOH;
• R3 is selected from —CH2CH2O—, —CH2CH(CH3)O—, —CH2CH2CH2O—, and mixtures thereof wherein n is an integer from 1 to about 250;
• and R4 is selected from substituted and unsubstituted linear and branched C8-C30 alkyl, substituted and unsubstituted C8-C40 alicyclic, C9-C30 alkylaryl wherein the aryl moiety contains 6 to 17 carbon atoms, C6-C17 arylalkyl wherein the alkyl moiety contains 8 to 30 carbon atoms, substituted and unsubstituted C5-C40 carbocylic groups;
• and
• ii) at least one surfactant having an HLB value less than 7;
• wherein said polymer maintains at least about 50% of its original Brookfield Viscosity value when 0.1 wt. % of sodium chloride is added to 1 wt. % polymer solids in deionized water (w/w);
• d) at least one adjuvant selected from humectants, emollients, biologically active materials, botanical extracts, conditioners, sunscreens, pharmaceutical actives, conditioning polymers, vitamins, cleansing surfactants, and mixtures thereof;
• e) a formulation aid selected from chelating agents, pH adjusters, opacifiers, preservatives, spreading agents, viscosity adjusters, rheology modifiers, film forming polymers, antioxidants, fragrances, colorants, pigments, glitter, pearlizing agents, and mixtures thereof;
• and
• f) a high HLB emulsifier having an HLB value of 7.5 or greater in an amount sufficient to allow said polymer in component to associate with said aqueous phase.

A personal care emulsion composition for topical application to the skin comprising:

• a) a continuous aqueous liquid phase;
• b) an oil phase;
• c) an electrolyte tolerant inverse emulsion polymer composition comprising:
• i) from about 0.01 wt. % to about 10 wt. % of the total weight of the personal care composition of a polymer polymerized from a monomer composition comprising (1) from about 25 wt. % to about 99.9998 wt. % at least one pH sensitive monomer selected from acrylic acid and salts thereof, methacrylic acid and salts thereof, itaconic acid and salts thereof, citraconic acid and salts thereof, maleic acid and salts thereof, fumaric acid and salts thereof, crotonic acid and salts thereof, C1-C4 alkyl half esters of maleic, fumaric, itaconic acid, aconitic acid, and salts thereof;
• and mixtures thereof, wherein at least 65 wt. % of said monomers are neutralized;
• (2) from about 0.001 wt. % to about 0.75 wt. % of a complex associative monomer selected from lauryl polyethoxylated methacrylate, palmityl polyethoxylated methacrylate, cetyl polyethoxylated methacrylate, cetylstearyl polyethoxylated methacrylate, stearyl polyethoxylated methacrylate, tristearylphenol polyethoxylated methacrylate, arachidyl polyethoxylated methacrylate, behenyl polyethoxylated methacrylate, cerotyl polyethoxylated methacrylate, montanyl polyethoxylated methacrylate, melissyl polyethoxylated methacrylate, lacceryl polyethoxylated methacrylate, and mixtures thereof, wherein said polyethoxylated moiety contains from about 10 to about 30 ethylene oxide repeating units;
• (3) from about 1 wt. % to about 74.9998 wt. % of a non-ionic monomer selected from C2-C6 hydroxy alkyl acrylates and methacrylates, glycerol monomethacrylate, tris(hydroxymethyl) ethane monoacrylate, pentaerythritol monomethacrylate, N-hydroxymethyl methacrylamide, hydroxyethyl methacrylamide, acrylamide, hydroxypropyl methacrylamide, vinyl caprolactam, N-vinyl pyrrolidone, C1-C4 alkoxy substituted methacrylates and methacrylamides, polyethylene glycol mono methacrylate and polypropylene glycol mono methacrylate, and mixtures thereof;
• and (4) from about 0.0001 wt. % to about 2 wt. % based on the total weight of monomers present in the monomer composition of a crosslinking monomer;
• wherein said wt. % ranges are based on the total weight of monomers present in said monomer composition;
• ii) at least one surfactant having an HLB value of less than 7;
• wherein said polymer maintains at least about at least about 25% of its original Brookfield Viscosity value when 0.25 wt. % of sodium chloride is added to 1 wt. % polymer solids in deionized water (w/w);
• d) at least one adjuvant selected from humectants, emollients, biologically active materials, botanical extracts, conditioners, sunscreens, pharmaceutical actives, conditioning polymers, vitamins, cleansing surfactants, and mixtures thereof;
• e) a formulation aid selected from chelating agents, pH adjusters, opacifiers, preservatives, spreading agents, viscosity adjusters, rheology modifiers, film forming polymers, antioxidants, fragrances, colorants, pigments, glitter, pearlizing agents, and mixtures thereof;
• and
• f) from about 0.2 wt. % to about 10 wt. % based on the total wt. of monomers in said monomer composition of a high HLB emulsifier having an HLB value of 7.5 or greater.