US4046564A
Expired / Lapsed
US
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Electrophotographic imaging members with photoconductive layer containing electron acceptor monomers or polymers
Assignee: Xerox Corp
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Filing: 1975-07-16
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Granted: 1977-09-06
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Expires: 1995-07-16
Abstract
Abstract Process for preparation of monomers of the formula ##STR1## WHEREIN R is hydrogen or methyl; X and Y are independently selected from the group consisting of NO 2 , halogen, --CN and --CF 3 ; and m and n can range from 0 to 3. Typical monomers embraced by the above formula can be prepared by Lewis Acid catalyzed esterification of methacrylic acid with a diazo derivative of an electron acceptor such as 9-diazo-2,4,7-trinitrofluorenone. These monomers can be used with other binders or polymerized by standard, free-radical techniques to polymers capable of forming self-supporting films which are useful in electrophotographic imaging members and methods.
Inventors
- 👤 Sam R. Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:43
CPC Classifications
C; C07; C07C; C07C205/00; C07C205/39; C07C205/42; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/06; C07C2603/10; C07C2603/12; C07C2603/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
55 words
An electrophotographic imaging member having a conductive substrate and a photoconductive insulating layer comprising monomers of the formula ##STR4## wherein R is hydrogen or methyl; X and Y are independently selected from the group consisting of NO 2 , halogen, --CN and --CF 3 ; and m and n can range from 0 to 3.
Claim 2
Dependent Claim
55 words
An electrophotographic imaging member having a conductive substrate and a photoconductive insulating layer comprising monomers of the formula ##STR4## wherein R is hydrogen or methyl; X and Y are independently selected from the group consisting of NO 2 , halogen, --CN and --CF 3 ; and m and n can range from 0 to 3.
Claim 3
Dependent Claim
27 words
The imaging member of claim 1 wherein the monomer is dissolved in a polymer having carbocyclic and/or heterocyclic constituents capable of charge transfer interaction with said monomer.
Claim 4
Dependent Claim
29 words
The electrophotographic imaging member of claim 1 wherein the monomer is dissolved in a polymer devoid of carbocyclic and/or heterocyclic substituents capable of charge transfer interaction with the monomer.
Claim 5
Dependent Claim
68 words
An electrophotographic imaging member comprising a conductive substrate and a photoconductive insulating layer containing a polymer comprising the product of the addition polymerization of at least one monomer of the formula ##STR5## wherein R is hydrogen or methyl; X and Y are independently selected from the group consisting of NO 2 , halogen, --CN and --CF 3 ; and m and n can range from 0 to 3.
Claim 6
Dependent Claim
68 words
An electrophotographic imaging member comprising a conductive substrate and a photoconductive insulating layer containing a polymer comprising the product of the addition polymerization of at least one monomer of the formula ##STR5## wherein R is hydrogen or methyl; X and Y are independently selected from the group consisting of NO 2 , halogen, --CN and --CF 3 ; and m and n can range from 0 to 3.
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) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |