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:
Dec. 27, 1977
Filed:
Dec. 10, 1975
Applicant:
Inventor:
Willy Muller, Riehen, CH;
Assignee:
Ciba-Geigy AG, Basel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
260176 ; 1062 / ; 260571 ;
Abstract
Disazo pigments of the formula ##STR1## in which A denotes a radical of the formulae ##STR2## wherein X.sub.1, Y.sub.1 and Y.sub.2 each denote hydrogen or chlorine, lower alkyl or lower alkoxy, X stands for branched alkyl having 3 to 9 carbon atoms, Y denotes hydrogen, halogen or lower alkyl, Y.sub.3 denotes hydrogen or lower alkyl, Z is hydrogen, halogen, lower alkyl, lower alkoxy or lower carbalkoxy and n or 2 are useful for coloring plastics and lacquers in yellow shades having excellent fastness properties, especially fastness to weathering.