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:
Sep. 17, 1996
Filed:
Jul. 19, 1994
Shuuichi Kimura, Tokyo, JP;
Michichika Hikosaka, Tokyo, JP;
Masami Shirao, Tokyo, JP;
Akimitsu Mochizuki, Tokyo, JP;
Junichi Tsuchida, Tokyo, JP;
Toyo Ink Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A process for the production of an aluminum phthalocyanine composition or a halogenated aluminum phthalocyanine composition in high yield and purity is provided which entails bringing a molten salt of aluminum chloride and/or aluminum bromide and a phthalocyanine compound having a central element other than aluminum into contact with each other in a predetermined temperature range thereby to substitute aluminum for the central element. Alternatively, the process involves conducting the aforementioned step, and introducing a halogen into the resultant reaction mixture.