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:
Jun. 08, 1993
Filed:
Feb. 15, 1991
Applicant:
Inventor:
Martin Trottmann, Therwil, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
534789 ; 534596 ; 534597 ; 534775 ; 534887 ; 8532 ; 8533 ; 8539 ; 8639 ; 8467 ;
Abstract
The novel dispersion dyes of the formula ##STR1## in which R.sub.1 is a C.sub.2 -C.sub.8 alkyl radical which is substituted by hydroxyl, halogen, a radical --X--C.sub.1 -C.sub.8 alkyl or --X--phenyl, in which X is a bridging member of the formula --O--, ##STR2## and R.sub.2 and R.sub.3, independently of one another, are each an unsubstituted C.sub.1 -C.sub.8 alkyl radical or a C.sub.2 -C.sub.8 alkyl radical which is substituted as mentioned for R.sub.1, or in which R.sub.1 and R.sub.2 together with the nitrogen atom linking them are a heterocyclic radical, are suitable in particular for the dyeing of polyester textile material.