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:
Nov. 30, 1976
Filed:
Feb. 10, 1975
Applicant:
Inventor:
Werner Kuster, Basel, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; C09B / ;
U.S. Cl.
CPC ...
260147 ; 106 22 ; 260 42 ; 260 4221 ; 2601 / ; 2601 / ; 2601 / ; 260149 ; 260151 ; 260186 ; 260190 ; 2602 / ; 2602 / ; 2603145 ; 260371 ; 427411 ; 8 42 / ;
Abstract
New dyestuff salts of the formula ##EQU1## WHEREIN A denotes the radical of an anionic dyestuff, R, R.sub.1 and R.sub. 2 denote alkyl radicals with a total of 10 - 24 carbon atoms and n denotes the number 1 - 4. The dyestuff salts show excellent solubility in organic solvents such as alcohols, ketones and esters. Due to the excellent solubility in organic solvents, the dyestuffs of the instant invention are especially suitable for dyeing solutions of polymers such as polystyrene or polyamides.