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:
Sep. 28, 2010
Filed:
Aug. 08, 2007
Victor Paul Eliu, Lörrach, DE;
Beate Fröhling, Grenzach-Wyhlen, DE;
Dominique Kauffmann, Illzach, FR;
Victor Paul Eliu, Lörrach, DE;
Beate Fröhling, Grenzach-Wyhlen, DE;
Dominique Kauffmann, Illzach, FR;
Ciba Corporation, Tarrytown, NY (US);
Abstract
Disclosed are thiol dyes of formula (1) wherein L1 is hydrogen; C-Calkyl; or phenyl-C-Calkyl; X is C-Calkylene, C-Calkenylene, C-Ccycloalkylene, C-Carylene, or C-Carylene-C-Calkylene, which may by interrupted by —O—, —NH—, —S—, —CO—, o-SO—; Y is the residue of an organic dye Z is a group of formula (1b) or —C≡N; wherein A is O; S; or N-L; B is L; —OL; —NLL; or —SL; and L, Land L, independently from other are hydrogen; C-Calkyl; C-Caryl-C-Calkyl. The compounds are useful for the dyeing of organic materials, such as keratin fibers, preferably human hair.