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:
Aug. 14, 1990
Filed:
May. 16, 1989
Applicant:
Inventors:
Yoshiyuki Nonaka, Tokyo, JP;
Junichi Tsuchida, Tokyo, JP;
Masami Shirao, Tokyo, JP;
Toshiro Notoji, Tokyo, JP;
Michichika Hikosaka, Tokyo, JP;
Assignee:
Toyo Ink Manufacturing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C09B / ;
U.S. Cl.
CPC ...
540138 ; 540136 ; 540137 ;
Abstract
Provided according to this invention is a process for the halogenation of copper phthalocyanine in titanium tetrachloride in the presence of aluminum chloride, which comprises preliminarily stirring both a part or all of the aluminum chloride and the copper phthalocyanine in titanium tetrachloride at not less than 50.degree. C. and carrying out the halogenation reaction, provided that when the part of the aluminum chloride is added for the preliminary stirring, the remaining portion of the aluminum chloride is added during the halogenation reaction.