Process for producing a metal phthalocyanine and/or its derivative
AssigneeKawasaki Kasei Chemicals Ltd.
InventorsTomio Segawa, Kazuhiro Maruyama, Tadashi Ninomiya, Motokazu Suyama
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Abstract
In a process for producing a metal phthalocyanine and/or its derivative by heating phthalic anhydride and/or its derivative, urea and a metal compound in an organic solvent in the presence of a catalyst, or by heating phthalodinitrile and a metal or a metal compound in an organic solvent, the improvement wherein the reaction for the production of the metal phthalocyanine and/or its derivative is conducted by an addition of cyanuric acid and/or its derivative.
Claims3
In a process for producing a metal phthalocyanine compound by heating phthalic acid and/or its derivative selected from the group consisting of the anhydride, the ammonium salt, the imide, the ester, the amide thereof and orthocyanobenzoic acid, urea and a metal compound wherein the metal is selected from the group consisting of copper, cobalt, nickel, manganese, indium, potassium, calcium or magnesium, in an organic solvent in the presence of a catalyst, or by heating phthalodinitrile and said metal in an organic solvent, the improvement wherein the fluidity of the reaction process is improved by the addition of from 2 to 30% by weight, relative to phthalic acid or its derivative or relative to phthalodinitrile, of cyanuric acid and/or the alkali metal salts thereof.
Dependencies are inferred from the claim text.