ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,220,478, issued on Feb. 11, was assigned to KAO Corp. (Tokyo).
"Hair cosmetic composition" was invented by Ryosuke Suzuki (Kawagoe, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hair cosmetic composition including components (A) to (C), wherein the content of component (A) is 0.01 to 5.00% by mass and the content of component (B) is 5.00 to 96.77% by mass: (A) an epoxyaminosilane copolymer, which is a reaction product of compounds (a) to (d): (a) a polysiloxane having two or more oxiranyl groups or oxetanyl groups; (b) a polyether having two or more oxiranyl groups or oxetanyl groups; (c) aminopropyltrialkoxysilane; (d) a specific amine; (B) a ...