US4049449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forming an electrophotographic member
Assignee: Xerox Corp
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Filing: 1976-12-22
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Granted: 1977-09-20
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Expires: 1996-12-22
Abstract
Abstract There is described a method for forming an electrophotographic imaging member wherein a selenium compound dispersed in an electrically insulating polymer matrix is photochemically or thermally decomposed and elemental selenium and a charge carrier transport compound are deposited within the binder matrix.
Inventors
- 👤 Dana G. Marsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:51
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0622; G03G5/0624; G03G5/0635; G03G5/0638
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
160 words
A method for preparing an electrophotographic imaging member comprising the steps of: a. providing a layer of a solid phase dispersion on a conductive substrate, said dispersion comprising an organoselenium compound which is represented by the structural formula ##STR2## wherein R has from 1 to about 20 carbon atoms and may be alkyl, aryl substituted alkyl, amino derivatives of alkyl and aryl substituted alkyl; aryl, alkyl substituted aryl, amino substituted aryl, alkylamino substituted aryl, arylamino substituted aryl, alkylcarbonyl, arylcarbonyl, and aminosubstituted derivatives of alkylcarbonyl and arylcarbonyl; and X and Y are independently selected from the group consisting of H and alkyl and perfluoroalkyl having from 1 to about 4 carbon atoms in an electrically insulating polymeric binder matrix; and b. subjecting said layer to sufficient thermal energy or electromagnetic radiation to which said organoselenium compound is responsive to decompose at least a substantial amount of said organoselenium compound whereby elemental selenium and a carbazole derivative are deposited within said layer.
Claim 2
Independent Claim
160 words
A method for preparing an electrophotographic imaging member comprising the steps of: a. providing a layer of a solid phase dispersion on a conductive substrate, said dispersion comprising an organoselenium compound which is represented by the structural formula ##STR2## wherein R has from 1 to about 20 carbon atoms and may be alkyl, aryl substituted alkyl, amino derivatives of alkyl and aryl substituted alkyl; aryl, alkyl substituted aryl, amino substituted aryl, alkylamino substituted aryl, arylamino substituted aryl, alkylcarbonyl, arylcarbonyl, and aminosubstituted derivatives of alkylcarbonyl and arylcarbonyl; and X and Y are independently selected from the group consisting of H and alkyl and perfluoroalkyl having from 1 to about 4 carbon atoms in an electrically insulating polymeric binder matrix; and b. subjecting said layer to sufficient thermal energy or electromagnetic radiation to which said organoselenium compound is responsive to decompose at least a substantial amount of said organoselenium compound whereby elemental selenium and a carbazole derivative are deposited within said layer.
Claim 3
Dependent Claim
24 words
The method as defined in claim 1 wherein said solid phase dispersion layer has a thickness of from about 2 to about 25 microns.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |