ALEXANDRIA, Va., May 12 -- United States Patent no. 12,622,853, issued on May 12, was assigned to L'OREAL (Paris).
"Composition comprising a particular oxidation dye precursor and a particular amino silicone" was invented by Julie Blanc (Saint-Ouen, France) and Laurence Cottard-Mei (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 dyeing base chosen from 2-methoxymethyl-para-phenylenediamine of formula (I), 2-Gamma-hydroxypropyl-para-phenylenediamine of formula (II), an addition salt thereof, solvates thereof and/or solvates of the salts thereof, and at least one (poly)oxyalkylenated amino silicone.The invention also re...