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:
Mar. 10, 1998
Filed:
Apr. 22, 1996
Guido Jordine, Freiburg, DE;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
Dye mixtures comprising at least one dye of formula ##STR1## together with at least one dye of formula ##STR2## wherein R.sub.1 and R.sub.2 are each independently of the other hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 -alkanoylamino, halogen or sulfo, R.sub.3 is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkanoylamino, halogen or sulfo, and Y is C.sub.1 -C.sub.4 alkyl or phenyl or naphthyl, each of which is unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkanoylamino, halogen or sulfo, which dye mixtures contain at least 10% by weight of one or more than one dye of formula (1), based on the total amount of the dyes of formulae (1) and (2), dye nitrogen-containing or hydroxyl group-containing fiber materials with good properties.