Lanolin fatty acids, polysiloxane and water-soluble polymer containing skin conditioning emulsion

Abstract

A synergistic skin conditioning emulsion composition comprising .[.a fatty acid or a mixture of fatty acids,.]. .Iadd.lanolin fatty acids, .Iaddend.a polysiloxane fluid, a water-soluble polymer and water. The fatty acids, the polysiloxane and the water-soluble polymer combine to form a water-resistant barrier which allows skin to stay in a smooth and supple condition for an extended period of time.

What is claimed is: 
     
       1. A skin conditioning emulsion composition comprising: A. .[.a fatty acid or a mixture of fatty acids having an average carbon chain length of 10 to 31 carbon atoms wherein from about 20% to about 80% of the acid groups are neutralized;.]. .Iadd.lanolin fatty acids having from about 20% to about 80% of the acid groups neutralized; .Iaddend.   B. a polysiloxane fluid having the formula -- [R 2  SiO] -- wherein R is C 1  -C 4  alkyl or phenyl and wherein said polysiloxane has a viscosity at 25° C of from about 5 to about 2,000 centistokes;   C. a water-soluble polymer having a molecular weight of about 500 to about 5,000,000 selected from the group consisting of quaternary ammonium substituted cellulose ether derivatives, hydroxyethyl cellulose, hydroxypropyl cellulose, a polymer of acrylic acid crosslinked with from 0.75% to 2.00% of a crosslinking agent selected from the group consisting of polyallyl sucrose and polyallyl pentaerythritol, methyl cellulose, sodium carboxymethyl cellulose, polyvinyl pyrrolidone, polyvinyl alcohol and polyvinyl methyl ether maleic anhydride; and   D. water.[...]..Iadd.; wherein (A) and (B) are present in a weight ratio of from about 12:1 to about 1:20 and comprise from about 0.35% to about 5.0% by weight of the total skin conditioning composition, and (C) comprises from about 0.015% to about 0.5% and (D) comprises from about 50% to about 94.5% by weight of the total skin conditioning composition. .Iaddend.     
     
     
       2. A skin conditioning emulsion composition as recited in claim 1 wherein the pH of the composition is from about 4.5 to about 8. 
     
     
       3. A skin conditioning emulsion composition as recited in claim 2 wherein .[.the fatty acid or mixture of fatty acids is.]. .Iadd.a fatty acid .Iaddend.selected from the group consisting of capric, undecylic, lauric, myristic, palmitic, stearic and .[.lanolin fatty acids.]. .Iadd.mixtures thereof is present in addition to the lanolin fatty acids.Iaddend.. 
     
     
       4. A skin conditioning emulsion composition as recited in claim 2 wherein (A) and (B) are present in a weight ratio of about 1.5:1 and comprise from about 1.0% to about 3.0% by weight of the total skin conditioning composition, while (C) comprises from about 0.03% to about 0.10% and (D) comprises from about 65% to about 88% by weight of the total skin conditioning composition. 
     
     
       5. A skin conditioning emulsion composition comprising: A. .[.a fatty acid or mixtures of fatty acids selected from the group consisting of capric, undecylic, lauric, myristic, palmitic, stearic, and lanolin fatty acids, or mixtues of these acids, wherein 20% to about 80% of the acid groups are neutralized,.]. .Iadd.lanolin fatty acids having from 20% to about 80% of the acid groups neutralized,.Iaddend.   B. a polysiloxane fluid having the formula -- [R 2  SiO] -- wherein R is C 1  -C 4  alkyl or phenyl and wherein said polysiloxane has a viscosity at 25° C. of from about 5 to about 2,000 centistokes;   C. a water-soluble polymer of acrylic acid crosslinked with from 0.75% to 2.00% of a crosslinking agent selected from the group consisting of polyallyl sucrose and polyallyl pentaerythritol; and   D. water, wherein (A) and (B) are present in a weight ratio of about 12:1 to about 1:20 and comprise from about 0.35% to about 5.0% by weight of the total skin conditioning composition, while (C) comprises from about 0.015% to about 0.5% and (D) comprises from about 50% to about 94.5% by weight of the total skin conditioning composition.     
     
     
       6. A skin conditioning emulsion composition as recited in claim 5 wherein (A) and (B) are present in a weight ratio of about 1.5:1 and comprise from about 1.0% to about 3.0% by weight of the total skin conditioning composition, while (C) comprises from about 0.03% to .[.aout.]. .Iadd.about .Iaddend.0.10% and (D) comprises from about 65% to about 88% by weight of the total skin conditioning composition. 
     
     
       7. A skin conditioning emulsion composition as recited in claim 6 wherein an additional ingredient (E), an emollient/humectant material, is present in an amount from about 0% to about 20% by weight of the total skin conditioning composition. 
     
     
       8. A skin conditioning emulsion composition as recited in claim 7 wherein (E) is selected from the group consisting of fatty alcohols containing from about 12 to about 18 carbon atoms, fatty acid esters of aliphatic alcohols where said esters contain from about 10 to about 31 carbon atoms, and mixtures of these ingredients, and is present in an amount of from about 1% to about 10%. 
     
     
       9. A skin conditioning emulsion composition as recited in claim 6 wherein (C) is an acrylic acid polymer crosslinked with about 1% of a polyallyl ether of sucrose having an average of about 5.8 allyl groups for each sucrose molecule.