Acidic emollient liquid detergent composition
AssigneeThe Procter & Gamble Company
InventorCharles L. Roggenkamp
Life of this patent
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Abstract
Liquid compositions containing an amine oxide, an occlusive emollient, and a pH controlling agent exhibit enhanced adsorption of the emollient material on keratinous substrates such as skin when employed as a detergent composition at an acid pH.
Claims7
A liquid dishwashing detergent composition which provides skin emolliency benefits consisting essentially of
- i. from about 1% to about 10% by weight of an amine oxide of formula RR'R"N.fwdarw.O wherein R is an alkyl group containing from about 8 to about 18 carbon atoms and wherein R' and R" are each C.sub.1 -C.sub.4 alkyl groups;
- ii. from about 1% to about 5% by weight of a C.sub.12 -C.sub.22 monohydric alcohol serving as an emollient;
- iii. from about 1 to about 5% by weight of an organic acidic pH controlling agent;
- iv. from about 5% to about 50% by weight of a noninterfering auxiliary surfactant selected from the group consisting of water-soluble C.sub.10 -C.sub.14 olefin sulfonates, C.sub.10 -C.sub.22 alkyl sulfates and alkyl ether sulfates containing up to 30 ethylene oxide groups and mixtures thereof;
- v. the balance of said composition comprising a liquid carrier selected from the group consisting of water and mixtures thereof with C.sub.2 -C.sub.4 alcohols;
- the pH of a 0.2% by weight aqueous solution of said composition lying within the range 4-6.9.
A process for adsorbing emollient materials on skin comprising contacting said skin with an aqueous mixture comprising from about .001% to about 1% by weight of an amine oxide of the formula RR'R"N.fwdarw.O wherein R is an alkyl group containing from about 8 to about 18 carbon atoms and wherein R' and R" are each C.sub.1 -C.sub.4 alkyl groups, from about .005% to about 5% by weight of a non-interfering auxiliary surfactant selected from the group consisting of water-soluble C.sub.10 -C.sub.14 olefin sulfonates, C.sub.10 -C.sub.22 alkyl sulfates and alkyl ether sulfates containing up to 30 ethylene oxide groups and mixtures thereof, and from about 0.00l% to about 1% by weight of a C.sub.16 monohydric alcohol serving as an emollient, at a pH of from about 4 to about 6.9.
Dependencies are inferred from the claim text.