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:
Jul. 21, 2009
Filed:
Sep. 27, 2006
Victor Paul Eliu, Lörrach, DE;
Beate Fröhling, Grenzach-Wyhlen, DE;
Achim Bührer, Grenzach-Wyhlen, DE;
Victor Paul Eliu, Lörrach, DE;
Beate Fröhling, Grenzach-Wyhlen, DE;
Achim Bührer, Grenzach-Wyhlen, DE;
Ciba Corporation, Tarrytown, NY (US);
Abstract
Disclosed are thiol dyes of formula (1), wherein Ris hydrogen; C-Calkyl; or phenyl-C-Calkyl; X is C-Calkylene; C-Calkenylene; C-Ccycloalkylene; C-Carylene; or C-Carylene-C-Calkylene; Y is the residue of an organic dye which corresponds to the formula (1), wherein Ris hydrogen; or C-Calkyl; Ris a radical of formula (1): (1); or (1); or Rand Rtogether with the linking carbon atom C form a 6 to 10 membered carbocyclic ring which may optionally be a condensated aromatic system and may contain one or more than one hetero atom; and R, Rand Rindependently form each other are hydrogen, or C-Calkyl; Z is H; or a thio ester group of formula (1), wherein A is O; S; or N—R9; B is —OR7; —NR7R8, or —SR7; and A is O; S; or N—R; B is —OR; —NRR, or —SR; and R, Rand R, independently from each other are hydrogen; C-Calkyl C-Caryl; or C-Caryl-C-Calkyl. The compounds are useful for the dyeing of organic materials, such as keratin fibers, preferably human hair.