Electrophotographic photoconductor and a method for forming the

Details Electrophotographic photoconductor and a method for forming the Electrophotographic photoconductor and a method for forming the

1994-07-19

1996-02-06

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 60, 430 65, 430131, 430 58, G03G 514

Patent

active

054894964

ABSTRACT:
An electrophotographic photoconductor comprising a conductive support, an undercoating layer provided on the conductive support and a photosensitive layer provided on the undercoating layer, in which the undercoating layer comprises a needle-like titanium oxide particles and a binder resin. The needle-like titanium oxide particles in the undercoating layer show a volume resistance in the range from 10.sup.5 .OMEGA..multidot.cm to 10.sup.10 .OMEGA..multidot.cm when a loading pressure of 100 Kg/cm.sup.2 is applied and have a short axis S having a length of 0.5 .mu.m or less and a long axis L having a length of 10 .mu.m or less and the aspect ratio of L/S ranging from 2 to 10. Further, the needle-like titanium oxide particles are contained in the undercoating layer in the range from 50 wt % to 95 wt % and the surface thereof remains untreated.

REFERENCES:
patent: 4377629 (1983-03-01), Tarumi et al.
patent: 4518669 (1985-05-01), Yashiki
patent: 4775605 (1988-10-01), Seki et al.

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