OIL DISPERSION OF POWDER BEING SURFACE-TREATED WITH SPECIFIC HALF ESTER OIL, AND COSMETIC COMPOSITION CONTAINING THE SAME
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United States of America Patent
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app pub date -
Oct 11, 2007
filing date -
Apr 11, 2005
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Abstract
Provided are a dispersion excellent in the dispersibility of powder particles, dispersion stability, storage stability, and versatility; and a cosmetic blended with such dispersion. An oil dispersion of a surface-treated powder, comprising a surface-treated powder coated with a half ester oil, and a lipophilic solvent as a dispersion medium, wherein the half ester oil comprises an ester compound having 16 or more carbon atoms in total as can be obtained by reacting at least one kind of alcohols having 1 to 36 carbon atoms with at least one kind of carboxylic acids having 1 to 36 carbon atoms, and wherein the half ester oil has an acid value of 15 or more.
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