ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,301, issued on Feb. 24, was assigned to L'Oreal (Paris).
"Composition comprising a particular oxidation dye precursor and a particular amino silicone" was invented by Valerie Nicou (Saint-Ouen, France) and Laurence Corn-Gourinel (Saint-Ouen, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a composition comprising at least one oxidation coupler chosen from hydroxyethyl-3,4-methylenedioxyaniline of formula (I), 2-amino-5-ethylphenol of formula (II), an addition salt thereof, solvates thereof and/or solvates of the salts thereof, at least one oxidation base and at least one (poly)oxyalkylenated amino silicone.The inventio...