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. 27, 2009
Filed:
Mar. 23, 2005
Victor Paul Eliu, Lörrach, DE;
Thomas Sauder, Basel, CH;
Dominique Kauffmann, Illzach, FR;
Beate Fröhling, Steinen, DE;
Victor Paul Eliu, Lörrach, DE;
Thomas Sauder, Basel, CH;
Dominique Kauffmann, Illzach, FR;
Beate Fröhling, Steinen, DE;
Ciba Specialty Chemicals Corp., Tarrytown, NY (US);
Abstract
Disclosed are azo dyes of formula (1), wherein Ris hydrogen; C-Calkyl; hydroxy-C-Calkyl; C-Calkenyl; a radical of formula (1a) —(CH)—O—(CH)—CH; a radical of formula (1b) Caryl; or C-Caryl-C-Calkyl; R3 is hydrogen; C-Calkyl; C-Calkenyl; C-Caryl; C-Caryl-C-Calkyl; or CO—R; Ris CO—R; Ris C-Calkyl; C-Calkenyl; C-Caryl; or C-Caryl-C-Calkyl; Ris hydrogen; C-Calkyl; C-Calkenyl; or C-Caryl; R, R, Rand R, independently from each other are hydrogen; or C-Calkyl; m is 1; or 2; Anis an anion; If m=1, Ris hydrogen; C-Calkyl; C-Calkenyl; a radical of formula (1a); a radical of formula (1b); C-Caryl; or C-Caryl-C-Calkyl; If m=2, Ris the direct bond; or C-Calkylene, which is optionally substituted by one or more C-Calkyl, or which is optionally interrupted by C-Carylene, —O— or —NRR—; Rand R, independently from each other are hydrogen; or C-Calkyl; and n1, n2, n3 and n4, independently from each other are a number from 0 to 5. The compounds are useful for the dyeing of organic material, preferably human hair.