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Skin and hair treatment composition and process for using same resulting in controllably-releasable fragrance and/or malodour counteractant evolution

  • US 20050226900A1
  • Filed: 04/13/2004
  • Published: 10/13/2005
  • Est. Priority Date: 04/13/2004
  • Status: Abandoned Application
First Claim
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1. A human epidermal and/or hair treatment composition comprising an admixture of (i) a plurality of microcapsules each of which (a) has an outside diameter in the range of from about 0.01 to about 1000 microns;

  • (b) has a wall having a thickness in the range of from about 0.001 to about 100 microns and has a core comprising a liquid selected from the group of fragrances, solvents, malodor counteractant compositions, beneficial agents and mixtures of fragrance, solvent, malodor counteractant compositions and beneficial agents, wherein greater than about 50 weight percent of the liquid has a C log10P of from about 1.5 to about 8.0; and

    wherein the solvent composition (A) is compatible with said fragrance composition and/or said malodour counteractant composition and (B) has a C log10P greater than about 2.0 wherein P represents the n-octanol/water partition coefficient for each of said fragrance composition components and/or said malodour counteractant composition components and P′

    represents the n-octanol/water partition coefficient for each of said solvent components and (ii) a human epidermal skin treatment and/or hair treatment base for maintaining in suspension said plurality of microcapsules, selected from the group consisting of a gel base, a suspension, a powder and an emulsion base, the concentration of fragrance composition components and/or malodour counteractant composition components in said human epidermal and/or hair treatment composition being in the range of from about 0.1 to about 50.0% by weight of said human epidermal and/or hair treatment composition.

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