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. 18, 2006
Filed:
Dec. 19, 2001
Applicants:
Adolf Käser, Bottmingen, CH;
Holger Lautenbach, Grenzach-Wyhlen, DE;
Inventors:
Adolf Käser, Bottmingen, CH;
Holger Lautenbach, Grenzach-Wyhlen, DE;
Assignee:
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B 35/29 (2006.01); C09B 35/35 (2006.01); D21H 21/28 (2006.01); C09B 45/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
The dyes of formula (1) according to claimand the copper complexes of dyes of formula (2) according to claimor the mixtures of mono-copper complex with the bis-copper complex are excellently suitable for dyeing paper with good light-fastness properties.