Method for producing metal phthalocyanine type pigment
Abstract
Abstract METHOD FOR PRODUCING A METAL PHTHALOCYANINE TYPE PIGMENT WHICH COMPRISES SUBJECTING AN O-DINITRILE TYPE COMPOUND AND A METALLIC SUBSTANCE CAPABLE OF FORMING A CENTRAL NUCLEUS OF THE PHTHALOCYANINE TYPE PIGMENT TO CONDENSATION REACTION AT A LOW TEMPERATURE IN THE PRESENCE OF AN ALKALINE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF HYDROXIDE, OXIDE, PEROXIDE AND CARBONATE OF ALKALI METAL AND OF ALKALINE EARTH METAL, A COMPOUND CAPABLE OF FORMING A COMPLEX COMPOUND WITH THE METAL OF THE METALLIC SUBSTANCE CAPABLE OF FORMING A CENTRAL NUCLEUS OF THE PHTHALOCYANINE TYPE PIGMENT AND A HYDROPHILIC ORGANIC SOLVENT HAVING HYDROXYL RADICAL. BY THIS METHOD, PRODUCTS HAVING CLEAR COLOR TONE, FINE CRYSTAL STATE, LARGE COLORING POWER, SOF TEXTURE AND SUPERIOR RESISTANCE TO HEAT CAN BE OBTAINED EASILY WITH A HIGH YIELD WITHOUT THE NECESSITY OF AFTER TREATMENT OF PIGMENTATION.
Inventors
- 👤 S Horiguchi
- 👤 T Hosoda
- 👤 S Ohira
- 👤 Y Abe
Bibliographic Details
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