Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Toyo Ink Mfg Co Ltd
Original Assignee
Toyo Ink Mfg Co Ltd
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Filing date
Publication date
Application filed by Toyo Ink Mfg Co LtdfiledCriticalToyo Ink Mfg Co Ltd
Priority to JP6103877ApriorityCriticalpatent/JPS53146729A/en
Publication of JPS53146729ApublicationCriticalpatent/JPS53146729A/en
PURPOSE: In the production of copper phthalocyanine through the phthalonitrile or phthalic anhydride process, the content of the copper salt is made less than the stoichiometric amount during the reaction to improve the purity and shade of the product.
COPYRIGHT: (C)1978,JPO&Japio
JP6103877A1977-05-271977-05-27Production of copper phthalocyanine
PendingJPS53146729A
(en)