Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Reexamination Certificate
2006-02-28
2006-02-28
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, C430S058650, C430S058750, C430S058800, C430S059600
Reexamination Certificate
active
07005222
ABSTRACT:
An imaging member having a charge transport layer with multiple regions is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein at least the top or uppermost transport layer comprises a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be of the same or different compounds from that included in the top or additional charge transport layer(s). The charge transport compound present in each layer may be dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.
REFERENCES:
patent: 4025341 (1977-05-01), Rule
patent: 4233384 (1980-11-01), Turner et al.
patent: 4265990 (1981-05-01), Stolka et al.
patent: 4286033 (1981-08-01), Neyhart et al.
patent: 4291110 (1981-09-01), Lee
patent: 4299897 (1981-11-01), Stolka et al.
patent: 4306008 (1981-12-01), Pai et al.
patent: 4338387 (1982-07-01), Hewitt
patent: 4439507 (1984-03-01), Pan et al.
patent: 4587189 (1986-05-01), Hor et al.
patent: 4664995 (1987-05-01), Horgan et al.
patent: 4786570 (1988-11-01), Yu et al.
patent: 4806443 (1989-02-01), Yanus et al.
patent: 4988597 (1991-01-01), Spiewak et al.
patent: 5244762 (1993-09-01), Spiewak et al.
patent: 5401615 (1995-03-01), Pai et al.
patent: 5830614 (1998-11-01), Pai et al.
patent: 6338927 (2002-01-01), Inagaki et al.
patent: 6780554 (2004-08-01), DeFeo et al.
patent: 2002/0076632 (2002-06-01), Yanus et al.
patent: 2002/0106570 (2002-08-01), Kami et al.
Carmichael Kathleen M.
Grabowski Edward F.
Horgan Anthony M.
Lambie John R.
Mishra Satchidanand
Fay Sharpe Fagan Minnich & McKee LLP
Palazzo Eugene O.
LandOfFree
Imaging members does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Imaging members, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Imaging members will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3684250