11.25.22
US Patent No. 11,504,314 B2; Hana Holecko of South San Francisco, CA has patented a multi-chrome cosmetic hair composition. It is comprised of a propellant (hydrofluorocarbon 152A); neutralized octylacrylamide/acrylates/butylaminoethyl methacrylate copolymer 4; an interference pigment comprising a plurality of particles including an aluminum opaque inorganic core surrounded by a metal oxide semi-transparent inorganic layer; denatured alcohol; and a neutralizing agent. The neutralizing agent is in an amount sufficient to generate a pH in the composition ranging from 8.0 to 9.0.
