The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 1976
Filed:
Jun. 18, 1975
Albert L Micchelli, Middletown, NJ (US);
Frank A Nowak, Jr, Bound Brook, NJ (US);
Gerard J Legato, Stirling, NJ (US);
National Starch and Chemical Corporation, Bridgewater, NJ (US);
Abstract
A process for coloring hair and the hair coloring compositions employed therefor are disclosed. Said process essentially comprises treating the hair with an acid dye in the presence of an aqueous solution of a water soluble cationic polymer selected from the group consisting of water-soluble acid salts of aminoalkyl esters of homo- and copolymers of unsaturated carboxylic acids having from 3 to 5 carbon atoms. Said hair coloring composition essentially comprises an aqueous solution of a water-soluble acid salt of an aminoalkyl ester of a homo- or copolymer of said unsaturated carboxylic acids in combination with a small amount of an acid dye.