Patents

Cold Manufactured Oxidative Hair Lightening/Coloring for Level 2 Colors

Henkel is awarded US Patent No. 11,458,078 B2.

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By: Christine Esposito

Editor-in-Chief

US Patent No. 11,458,078 B2 (Christa Rohland, Juergen Schoepgens, Gabriele Weser); Henkel AG & Co., Duesseldorf, has patented an agent for oxidative hair lightening or hair coloring comprising water, at least one alkalizing agent, at least one crosslinked copolymer of acrylic acid and non-ethoxylated esters of acrylic acid with linear C10-C30 monoalcohols as monomers;
at least one linear, saturated 1-alkanol with one hydroxy group and from about 8 to about 22 carbon atoms; at least one anionic surfactant; and optionally at least one coloring substance selected from oxidation dye precursors, direct-acting hair dyes and mixtures thereof and sodium polyacrylate. The agent is free from oxidizing agents and has a pH value in the range from about 7.5 to about 9.5, measured at 20°C.

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