Liquid personal cleansing composition
AssigneeConopco, Inc.
InventorsNicolas E. Restrepo, Alexander Kingston Shutak, Joseph James Regan, Bruce Casbarro, Liang Sheng Tsaur, Vivek Subramanian
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Abstract
A stable, multiphase liquid isotropic cleansing composition is described that contains high levels of Petrolatum and shows a substantial decrease in reflectance compared with isotropic cleansing compositions containing other oils and liquid crystalline compositions with similar levels of oils. The inventive composition has a total of less than 2% by wt. of other oils such as glyceride, mineral and silicone oils, or blends thereof.
Claims6
A stable, multiphase isotropic cleansing composition, comprising:
- a. about 99 to 84% by wt. of an aqueous phase based on the total composition;
- b. about 1 to 16% by wt. of petrolatum having a melting point between 35 and 80 C and a minimum viscosity of 10 kPa-s at 32 C, wherein the concentration is based on the total composition;
- c. wherein the aqueous phase includes about 1 to 25% by wt. of a non-soap anionic surfactant and about 1 to 20% by wt. of an amphoteric surfactant based on the total composition;
- d. wherein the aqueous phase contains about 0.5 to 10% by wt. of total polymeric dispersion stabilizing agent(s) based on the total composition;
- e. less than about 2% by wt. of total hydrophobic glyceride(s), hydrocarbon(s) excluding petrolatum, or silicone oils or blends and derivatives thereof based on the total composition;
- f. less than about 1.5% by wt. of total liquid crystalline structurant(s), crystalline hydroxyl-containing stabilizer(s), C10-C22 ethylene glycol fatty acid ester(s), silica(s), clay(s) or blends thereof based on the total composition;
- and
- g. wherein the cleansing composition has a maximum reflectance of 80% as measured by the standard reflectance method and wherein greater than 50% by volume of the petrolatum particles have a diameter greater than 100 microns as measured by the standard particle size method.
A process of preparing a stable, multiphase isotropic cleansing composition, comprising the steps of in no particular order:
- a. blending water, surfactant(s), and polymeric dispersion stabilizing agent(s) until uniform to make an oil-free, transparent, isotropic aqueous preblend;
- b. feeding the aqueous preblend into a blending tube, the aqueous preblend moving through the blending tube at a rate from about 22.7 to about 113.7 kg (50-250 lbs.) per minute;
- c. feeding petrolatum with a melting point between 35 and 80 C and a minimum viscosity of 10 kPa-s at 32 C into the blending tube via a multiport injector at a rate sufficient to form a blend with a wt. % ratio range of about 1% petrolatum to 99% aqueous preblend to about 16% petrolatum to 84% aqueous preblend forming petrolatum particles;
- and
- d. wherein the cleansing composition has a maximum reflectance of 80% as measured by the standard reflectance method and wherein greater than 50% by volume of the petrolatum particles have a diameter greater than 100 microns as measured by the standard particle size method.
Dependencies are inferred from the claim text.