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:
Feb. 22, 2000
Filed:
Jul. 26, 1999
Applicant:
Inventors:
Hans Joachim Metz, Darmstadt, DE;
Rudiger Baur, Eppstein, DE;
Hans-Tobias Macholdt, Darmstadt-Eberstadt, DE;
Assignee:
Clariant GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ;
U.S. Cl.
CPC ...
534581 ; 534575 ; 534582 ; 534742 ;
Abstract
Azo pigment of the formula (1) ##STR1## which has a specific surface area of the pigment powder of more than 45 m.sup.2 /g. The azo pigment is particularly suitable as colorant in electrophotographic toners and developers, and in powder coatings and electret materials.