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Kao Patents Hair Cleanser

Kao Patents Hair Cleanser

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By: TOM BRANNA

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Kao Patents Hair Cleanser U.S. Patent No. 7,776,806 B2; Kao Corporation, Tokyo, Japan, has patented a hair cleansing composition that is comprised of sulfate surfactant; p-toluenesulfonic acid, naphthalenesulfonic acid or a salt thereof of either acid; an organic acid selected from the group consisting of malic acid, glycolic acid and lactic acid; and an organic solvent comprising polypropylene glycol having a molecular weight of 200-5000; and optionally, at least one selected from the group ...

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