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:
Oct. 16, 1979
Filed:
Jun. 20, 1977
Henkel Kommanditgesellschaft auf Aktien, Dusseldorf-Holthausen, DE;
Abstract
Dyestuffs of the oxidizable developer-coupler type wherein the coupler is a 3,5-diamino-2-substituted-alkylbenzene of the formula ##STR1## wherein R.sub.1 is straight- or branched-chain alkyl of 1-8 carbon atoms, R.sub.2 is a straight- or branched-chain alkyl of 1-8 carbon atoms, phenyl, or phenyl substituted by alkyl of 1-4 carbon atoms or halogen atoms and the inorganic and organic salts thereof are very satisfactory for coloring hair. They are readily oxidized by atmospheric oxygen at room temperature without a catalyst, and they provide intense, bright and fast dyeings in a short tie. They are applied in conventional manner from an aqueous medium.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile