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:
Oct. 11, 1988
Filed:
May. 28, 1987
Applicant:
Inventors:
Hans-Tobias Macholdt, Darmstadt, DE;
Alexander Sieber, Frankfurt am Main, DE;
Adolf Kroh, Selters, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
430109 ; 430110 ;
Abstract
An improved magenta colorant for electrophotographic multicolor recording processes, comprising mix-crystals from 95 to 60 parts of a compound of the formula I below and 5 to 40 parts of a compound of the following formula II ##STR1## and use thereof for preparing toners or developers which are used for electrophotographic copying of subject copies and for printing electronically, optically and magnetically stored data.