Photoconductor with light fatigue additives

Details Photoconductor with light fatigue additives Photoconductor with light fatigue additives

2007-03-27

2007-03-27

Goodrow, John L (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

C430S058400, C430S072000

Reexamination Certificate

active

10802967

ABSTRACT:
A photoconductor having a charge generation layer and a charge transport layer, the charge transport layer having hydrazone or aryl amine charge transport molecules and also having as room light protective additives acetosol yellow 5GLS and tetraphenylcyclopentadienone or 9-fluorenone. Preferably the amount of the acetosol yellow is 2 to 4 percent by weight of the weight of the charge transfer layer and the ratio of weight between the acetosol yellow and the dienone or fluorenone is in the range of 1:1 to 1:3.

REFERENCES:
patent: 4106934 (1978-08-01), Turnblom
patent: 4362798 (1982-12-01), Anderson et al.
patent: 5545499 (1996-08-01), Balthis et al.
patent: 5700614 (1997-12-01), Kawahara et al.
patent: 5994014 (1999-11-01), Hinch et al.
patent: 6544702 (2003-04-01), Haggquist et al.
patent: 64-040835 (1989-02-01), None
patent: 06-161123 (1994-06-01), None
Colour Index, (3rd revision) vol. 7 The Society of Dyers & Colourists (1982) pp. 7234-7235.
ACS File Registry No. 92091-43-5 Copywrite 2001.

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