PREPARATION OF COPPER PHTHALOCYANINE - DAINICHISEIKA COLOR CHEM

Title:

PREPARATION OF COPPER PHTHALOCYANINE

Document Type and Number:

Japanese Patent JPS60123489

Kind Code:

A

Abstract:

PURPOSE: In preparation of copper phthalocyanine by urea method, to make a reaction product have high purity and high yield with suppressing formation of impurities in the reaction, by using a solid catalyst having ≤ specific particle diameters.

CONSTITUTION: In preparing copper phthalocyanine by using phthalic anhydride or its derivative (e.g., phthalimide, etc.), urea, and copper in a molar ratio of preferably 4:(8W20):1, 0.0005W0.005mol solid catalyst (e.g., ammonium molybdate, etc.) having ≤0.5μ, preferably 0.001W0.5μ particle diameters is used as the catalyst based on 1mol phthalic acid.

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Inventors:

KOORI YOSHITAKE
HORIGUCHI SHIYOUJIROU
SAITOU YASUYUKI

Application Number:

JP23050483A

Publication Date:

July 02, 1985

Filing Date:

December 08, 1983

Export Citation:

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Assignee:

DAINICHISEIKA COLOR CHEM

International Classes:

C07D487/22; C07D209/00; C07D257/00; (IPC1-7): C07D209/00; C07D257/00; C07D487/22

Domestic Patent References:

JPS57135866A

1982-08-21

Attorney, Agent or Firm:

Yoshida Katsuhiro

Previous Patent: JPS60123488

Next Patent: MALONYLOXACEPHEM CARBOXYLIC ACID DERIVATIVE