Patent ID: 6491796
Filing Date: 2002-12-10
Classification: C09B

Abstract:
A method for preparing a phthalocyanine composition by microwave irradiation in the absence of an organic solvent, comprising the steps of:a. establishing an initial composition from the group consisting of a metal phthalocyanine or a metal-free phthalocyanine, wherein said metal-free phthalocyanine includes a central H atom; b. establishing a second composition from the group consisting of metal chlorides or acetates; c. mixing said initial and second compositions to form a third composition; d. grinding said third composition to form a homogeneous powder composition; e. placing said homogeneous powder composition into a vessel; f. irradiating said homogeneous powder composition in said vessel in a microwave oven until a reaction is completed to form said phthalocyanine composition; and g. cleansing said phthalocyanine composition.