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:
Apr. 25, 2006
Filed:
Jan. 08, 2003
Applicants:
Gisela Umbricht, Marly, CH;
Franco Jose Rosato, Liebefeld, CH;
Hans-juergen Braun, Ueberstorf, CH;
Inventors:
Assignee:
Wella AG, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 7/13 (2006.01); C07D 213/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The 3-aminophenol derivatives of formula (I), or the physiologically compatible, water-soluble salts thereof:wherein R1 represents a group of formula (II) or a group of formula (III):are useful as couplers in hair colorants. Agents for dyeing keratin fibers, especially hair, based on a developer-coupler combination containing these compounds and methods of dyeing using these agents are described.