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. 10, 1998
Filed:
May. 30, 1996
Applicant:
Inventor:
Kazuhiro Maruyama, Kawasaki, JP;
Assignee:
Kawasaki Kasei Chemicals Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C09B / ; C09B / ;
U.S. Cl.
CPC ...
540144 ; 540122 ; 540139 ; 540142 ;
Abstract
Copper phthalocyanine is prepared by heating and reacting phthalic acid or a derivative thereof, urea or a derivative thereof and copper or a copper compound in the presence of molybdenum or a molybdenum compound as a catalyst and sulfur.