US Patent No. 8,491,875 B2; Kao Corporation, Tokyo, has patented a volumizing shampoo that contains surfactant selected from anionic surfactants, amphoteric surfactants, zwitterionic surfactants, and mixtures thereof; a waxy material having a melting point of from about 55°C to about 75°C selected from natural waxes of animal or plant origin; alkyl-modified dimethicones, copolymers of vinyl pyrrolidone and long chain alpha-olefins, synthetic wax/highly branched polyalpha-olefin polymers, and mixtures thereof; and water. The shampoo contains no greater than about 2% of hair treatment materials which form an oily coating on the hair selected from the group consisting of dimethicone gums, oils, triglycerides, petrolatums, unsaturated fatty acids, C18-C28 mono-long chain quaternary ammonium materials, and mixtures thereof.
Kao has patented (No. 8,491,873 B2) a dentifrice that contains a thickening silica having an oil absorption of 150 to 500 mL/100 g and an average particle size of 1 to 8μm, heavy calcium carbonate and water.
Volumizing Shampoo, Dentifrice Patented by Kao
Published September 4, 2013
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