Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1997-06-13
1998-03-17
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 66, 430 58, G03G 5147
Patent
active
057284997
ABSTRACT:
An electrophotographic photoreceptors having a protective layer which contains a specially cross-linked phenolic resin. The cross-linked phenolic resin contains both methylene ether linkages and methylene linkages that are provided such that the oxygen element content of the cross-linked phenolic resin contains no greater than 23.5 wt %, or more preferably between about 21 wt % and 23.5 wt %, of oxygen atoms. In a preferred embodiment, the specially cross-linked phenolic resin is formed by (a) raising the cross-linking temperature from 80.degree..+-.10.degree. C. to about 130.degree. C., in a cascading manner involving at least one intermediate treatment temperature; then (b) lowering the cross-linking temperature from about 130.degree. C. to 80.degree..+-.10.degree. C. The protective layer improves the chemical stability and mechanical strength of the electrophotographic photoreceptor while retaining the desired photoelectric properties thereof.
REFERENCES:
patent: 4390609 (1983-06-01), Wiedemann
patent: 4489148 (1984-12-01), Horgan
patent: 4888262 (1989-12-01), Tamaki et al.
patent: 5215844 (1993-06-01), Badesha et al.
patent: 5292603 (1994-03-01), Sakai et al.
Hung Tzea-Ching
Yang Chen-Jen
Yeh Kuo-Chu
Liauh W. Wayne
Martin Roland
Sinonar Corp.
LandOfFree
Protective layer composition of electrophotographic photorecepto does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Protective layer composition of electrophotographic photorecepto, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protective layer composition of electrophotographic photorecepto will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-956203