| http://www.w3.org/ns/prov#value | - It has now been found that the foregoing advantages are provided, in accordance with the present invention, by concentrated, fluid, aqueous solutions of the trimethyl ammonium salts of polymethylene copper phthalocyanine characterized by the formula: where n is 2 to 8, Fe is phthalocyanine, and X is an anion selected from the group consisting of chloride, bromide, methylsulfate.
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