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:
Jul. 11, 1978
Filed:
Dec. 09, 1974
Applicant:
Inventor:
Paul Muller, Basel, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; C09B / ; C09B / ;
U.S. Cl.
CPC ...
260174 ; 106 23 ; 1062 / ; 1061 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 4221 ; 260177 ; 260184 ; 260187 ; 260188 ;
Abstract
Disazo pigments of the formula ##STR1## wherein X represents hydrogen or chlorine and Y represents hydrogen or methyl, with X representing chlorine if Y represents hydrogen and X representing hydrogen if Y represents methyl are prepared. The compounds may be used for pigmenting organic materials such as ethyl cellulose, polyesters, and polyvinyl chloride. The compounds have outstanding fastness to light and migration, and good resistance to heat.