Phthalocyanine, process for producing the same and electrophotographic photoreceptor using the same
AssigneeMitsubishi Paper Mills Limited
InventorsTamotsu Horiuchi, Hideki Nagamura, Makoto Okaji
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Abstract
Disclosed are a phthalocyanine composition having main diffraction peaks at 7.0°, 9.0°, 14.1°, 18.0°, 23.7° and 27.3° of Bragg angles (2θ±0.2°) in an X-ray diffraction spectrum with Cu Kα, a process for producing the same and an electrophotographic photoreceptor using the same.
Claims5
A phthalocyanine composition comprising an oxytitanium phthalocyanine and a metal-free phthalocyanine, wherein said composition has diffraction peaks at 7.0°, 9.0°, 14.1°, 18.0°, 23.7° and 27.3° of Bragg angles (2θ±0.2°) in an X-ray diffraction spectrum with a 1.541 Å X-ray of Cu Kα.
A process for producing a phthalocyanine composition, which comprises:
- subjecting an amorphous phthalocyanine composition which comprises an oxytitanium phthalocyanine and a metal-free phthalocyanine to a treatment in a solvent containing water and an aromatic compound, to thereby effect the transformation to a crystal structure having diffraction peaks at 7.0°, 9.0°, 14.1°, 18.0°, 23.7° and 27.3° of Bragg angles (2θ±0.2°) in an X-ray diffraction spectrum with a 1.541 Å X-ray of Cu Kα.
A process for producing a phthalocyanine composition, which comprises:
- subjecting a mixture of an amorphous oxytitanium phthalocyanine and an amorphous metal-free phthalocyanine to a treatment in a solvent containing water and an aromatic compound, to thereby effect the transformation to a crystal structure having diffraction peaks at 7.0°, 9.0°, 14.1°, 18.0°, 23.7° and 27.3° of Bragg angles (2θ±0.2°) in an X-ray diffraction spectrum with a 1.541 Å X-ray of Cu Kα.
Dependencies are inferred from the claim text.