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:
Jan. 06, 2009
Filed:
Mar. 11, 2005
Kouichi Hirota, Kobe, JP;
Yukihide Hashimoto, Kobe, JP;
Kiyoshi Masuda, Ushiku, JP;
Masunori Kitao, Ushiku, JP;
Kouichi Hirota, Kobe, JP;
Yukihide Hashimoto, Kobe, JP;
Kiyoshi Masuda, Ushiku, JP;
Masunori Kitao, Ushiku, JP;
Nippon Shokubai Co., Ltd., Osaka, JP;
Abstract
This invention relates to a method for the production of a halogen-containing phthalocyaline compound by the cyclization of phthalonitrile compounds either singly or in combination with a metal compound, characterized in effecting the cyclization in an organic compound having a hydroxyl group and/or a carboxylic acid in an amount in the range of 0.01-10 mass parts per one mass part of the phthalonitrile compounds while continuing the introduction of an inert gas. This method, by using a solvent capable of serving as a specific oxygen source destined to participate in the reaction of complexing a metal compound introduced into a phthalocyanine dye, permits the production of a phthalocyanine compound inexpensively in a high yield.