Patents

Bleach Composition Patented by Kao

Researchers patent a kit-of-parts for bleaching keratin fibers.

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By: TOM BRANNA

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US 12,274,772 B2. Peter Bauer, Steven Breakspear, Bernd Nöcker, and Ines Rabelo De Moraes, all of Darmstadt, Germany. Assignee: Kao Corporation, Tokyo, Japan. Kao researchers patented a kit-of-parts for bleaching keratin fibers. The bleaching composition includes one or more persalt(s) and/or peroxy salt(s) at a total concentration in the range of 20% to 80% by weight, calculated to the total weight of the bleaching composition A, and one or more alkalizing agent(s) selected from metasilicate...

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