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. 10, 1978
Filed:
Nov. 25, 1975
Applicant:
Inventors:
Assignee:
Ciba-Geigy AG, Basel, CH;
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; C09B / ; D06P / ;
U.S. Cl.
CPC ...
260153 ; 2601 / ; 2601 / ; 2601 / ; 260154 ; 260156 ; 260196 ; 2603145 ; 2602422 ;
Abstract
Azo dyestuffs which contain an acid substituent which confers solubility in water of the formula ##STR1## wherein D is the radical of a sulfo substituted benzene or naphthalene diazo component; R' is alkyl of 1 to 4 carbon atoms; Z is a fiber reactive group; and N is an integer of 1 to 4 are disclosed and are useful in dyeing nitrogen containing fibers such as polyamides, polyurethanes, silk, leather and wool as well as cellulose materials, in particular cotton.