Crystals of hydroxygallium phthalocyanine, method of preparing t

Details Crystals of hydroxygallium phthalocyanine, method of preparing t Crystals of hydroxygallium phthalocyanine, method of preparing t

1992-04-24

1994-04-12

Kight, III, John

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

430 56, G03G 500, G03G 1500

Patent

active

053024796

ABSTRACT:
Crystals of hydroxygallium phthalocyanine, a method of preparing the crystals, a photoconductive material containing the crystals, and an electrophotographic photoreceptor having the material. The photoreceptor has excellent electrophotographic characteristics. The crystals of hydroxygallium phthalocyanine have distinct diffraction peaks at (i) 7.5.degree., 9.9.degree., 12.5.degree., 16.3.degree., 18.6.degree., 25.1.degree. and 28.3.degree., or (ii) 7.7.degree., 16.5.degree., 25.1.degree. and 26.6.degree., or (iii) 7.9.degree., 16.5.degree., 24.4.degree. and 27.6.degree., or (iv) 7.0.degree., 7.5.degree., 10.5.degree., 11.7.degree., 12.7.degree., 17.3.degree., 8.1.degree., 24.5.degree., 26.2.degree. and 27.1.degree., or (v) 6.8.degree., 12.8.degree., 15.8.degree. and 26.0.degree. or (vi) 7.4.degree., 9.9.degree., 25.0.degree., 26.0.degree., and 28.2.degree. of the Bragg angle (2.theta..+-.0.2) in the X-ray diffraction spectrum. The electrophotographic photoreceptor has a light-sensitive layer containing the photoconductive material of the crystals.

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Tanaka et al.; "Photoconduction of Metal Phthalocyanine (III)-Rectification Properties of Gallium Phthalocyanine"; Denshishashin Gakkaishi, vol. 26(3), (1987); pp. 240-244.
Arishima et al.; "Electrophotographic Photoreceptors with High Sensitivity in Near Infrared Region Using Phthalocyanine Compounds"; Shinkyo Gihoh CPM-81-69, (1981); pp. 39-45.

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