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:
Jan. 08, 2013
Filed:
Dec. 15, 2010
Jonathan Wood, Weinheim, DE;
Alexandra Hullmann, Egelsbach, DE;
Sandra Schmelz, Marktheidenfeld, DE;
Martin Uellner, Darmstadt, DE;
Jonathan Wood, Weinheim, DE;
Alexandra Hullmann, Egelsbach, DE;
Sandra Schmelz, Marktheidenfeld, DE;
Martin Uellner, Darmstadt, DE;
Kao Germany GmbH, Darmstadt, DE;
Abstract
The present invention relates to a process for oxidative coloring keratin fibers especially human hair wherein dyeing compositions are thickened with a selected thickener. The objective of the present invention is a process for oxidative coloring hair wherein compositions A and B are mixed wherein composition A comprises at least one oxidative dye precursor and optionally at least one coupling agent and optionally at least one direct dye in a cosmetically acceptable medium and composition B comprises at least one oxidizing agent in a cosmetically acceptable medium, and applied onto hair and processed for 5 to 45 min at a temperature range of 20 to 45° C. and rinsed off from hair, wherein at least one of the two compositions A and B comprises a thickening polyurethane polymer.