Electrophotographic photoreceptor using titanyl phthalocyanine

Details Electrophotographic photoreceptor using titanyl phthalocyanine Electrophotographic photoreceptor using titanyl phthalocyanine

1990-01-05

1991-02-19

Welsh, David

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

540141, 430 60, G03G 506, G03G 514

Patent

active

049943391

ABSTRACT:
The present invention relates to an electrophotographic photoreceptor containing titanyl phthalocyanine in a crystalline state that has a maximum intensity peak of the Bragg angle 2.theta. at 27.2.degree..+-.0.2.degree. crystal planes corresponding to diffraction lines at 9.6.degree..+-.0.2.degree., 11.7.degree..+-.0.2.degree. and 24.2.degree..+-.0.2.degree. in a diffraction spectrum obtained with characteristic X-rays of Cu K.alpha. at a wavelength of 1.541 .ANG., and that also has an aggregated state such that a visible and near infrared absorption spectrum has a maximum absorption in the range of 780-860 nm, said photoreceptor further containing an ethylene copolymer resin and/or a polyamide resin in an intermediate layer provided between a light-sensitive layer and an electroconductive layer or an electroconductive substrate.

REFERENCES:
patent: 4728592 (1988-03-01), Ohaku

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