Patent US2315244A successfully refreshed from Google Patents.
Patent US4006017A successfully refreshed from Google Patents.
US4006017A
Expired / Lapsed
US
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Photoconductive composition, article and process
Assignee: Xerox Corp
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Filing: 1975-02-10
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Granted: 1977-02-01
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Expires: 1995-02-10
Abstract
Abstract Photoconductive composition comprising an insulating polymeric matrix and a compound of the formula ##STR1## wherein R is hydrogen or nitrile; and R', R" and R'" are independently selected from an aliphatic hydrocarbon radical having from about 1 to about 10 carbon atoms; phenyl; or substituted phenyl, said phenyl substituents being capable of releasing electrons to relatively electron deficient centers within the compound; amino; diarylamino; dialkylamino or alkoxy; and n can range from 0 up to the potential number of positions of substitution on the aromatic ring system. These compositions have good spectral response in the visible region of the electromagnetic spectrum and are suitable for use in electrostatographic imaging members and methods.
Inventors
- 👤 David J. Williams
- 👤 William W. Limburg
- 👤 James M. Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:05
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/56; C07D209/80; C07D209/82; C07D209/86; C09; C09B; C09B23/00; C09B23/0008; C09B23/005; C09B23/0058
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
78 words
Compounds of the formula ##STR3## wherein R is hydrogen or nitrile; and R'; R" and R'" are independently selected from an aliphatic hydrocarbon radical having from about 1 to about 10 carbon atoms; phenyl; or substituted phenyl, said phenyl substituents being capable of releasing electrons to relatively electron deficient centers within the compound; amino; diarylamino; dialkylamino or alkoxy; and n can range from 0 up to the potential number of positions of substitution on the aromatic ring system.
Claim 2
Dependent Claim
78 words
Compounds of the formula ##STR3## wherein R is hydrogen or nitrile; and R'; R" and R'" are independently selected from an aliphatic hydrocarbon radical having from about 1 to about 10 carbon atoms; phenyl; or substituted phenyl, said phenyl substituents being capable of releasing electrons to relatively electron deficient centers within the compound; amino; diarylamino; dialkylamino or alkoxy; and n can range from 0 up to the potential number of positions of substitution on the aromatic ring system.
Claim 3
Dependent Claim
6 words
The compounds of claim 1, 3-dicyanovinyl-N-alkylcarbazole.
Claim 4
Dependent Claim
6 words
The compounds of claim 1, 3-tricyanovinyl-N-alkylcarbazole.
Claim 5
Dependent Claim
112 words
A photoconductive composition comprising a solid solution of at least one photogenerator compound of the formula ##STR4## wherein R is hydrogen or nitrile; and R', R" and R'" are independently selected from an aliphatic hydrocarbon radical having from about 1 to about 10 carbon atoms; phenyl or substituted phenyl, said phenyl substituents being capable of releasing electrons to relatively electron deficient centers within the compound amino; diarylamino; dialkylamino or alkoxy; n can range from 0 up to the potential number of positions of substitution on the aromatic ring system and an insulating polymeric matrix, said polymeric matrix being capable of rapid and efficient transport of charge carriers of at least one polarity.
Claim 6
Dependent Claim
112 words
A photoconductive composition comprising a solid solution of at least one photogenerator compound of the formula ##STR4## wherein R is hydrogen or nitrile; and R', R" and R'" are independently selected from an aliphatic hydrocarbon radical having from about 1 to about 10 carbon atoms; phenyl or substituted phenyl, said phenyl substituents being capable of releasing electrons to relatively electron deficient centers within the compound amino; diarylamino; dialkylamino or alkoxy; n can range from 0 up to the potential number of positions of substitution on the aromatic ring system and an insulating polymeric matrix, said polymeric matrix being capable of rapid and efficient transport of charge carriers of at least one polarity.
Claim 7
Dependent Claim
13 words
The photoconductive composition of claim 4, wherein the photogenerator compounds is a 3-dicyanovinyl-N-alkyl-carbazole.
Claim 8
Dependent Claim
14 words
The photoconductive composition of claim 4, wherein the photogenerator compound is a 3-tricyanovinyl-N-alkyl carbazole.
Claim 9
Dependent Claim
115 words
A composition comprising from about 0.1 to about 99.9 weight percent of at least one photogenerator compound of the formula ##STR5## wherein R is hydrogen or nitrile; and R', R" and R'" are independently selected from an aliphatic hydrocarbon radical having from about 1 to about 10 carbon atoms; phenyl; or substituted phenyl, said phenyl substituents being capable of releasing electrons to relatively electron deficient centers within the compound amino; diarylamino; dialkylamino or alkoxy; n can range from 0 up to the potential number of positions of substitution on the aromatic ring system in an insulating polymeric matrix the minimum concentration of photogenerator compound relative to polymeric matrix being sufficient to render the composition photoconductive.
Claim 10
Dependent Claim
115 words
A composition comprising from about 0.1 to about 99.9 weight percent of at least one photogenerator compound of the formula ##STR5## wherein R is hydrogen or nitrile; and R', R" and R'" are independently selected from an aliphatic hydrocarbon radical having from about 1 to about 10 carbon atoms; phenyl; or substituted phenyl, said phenyl substituents being capable of releasing electrons to relatively electron deficient centers within the compound amino; diarylamino; dialkylamino or alkoxy; n can range from 0 up to the potential number of positions of substitution on the aromatic ring system in an insulating polymeric matrix the minimum concentration of photogenerator compound relative to polymeric matrix being sufficient to render the composition photoconductive.
Claim 11
Dependent Claim
13 words
The composition of claim 7, wherein the photogenerator compounds is a 3-dicyanovinyl-N-alkyl carbazole.
Claim 12
Dependent Claim
13 words
The composition of claim 7, wherein the photogenerator compound is a 3-tricyanovinyl-N-alkyl carbazole.
Claim 13
Dependent Claim
138 words
An electrophotographic imaging member comprising a conductive substrate and a photoconductive insulating layer operatively disposed in relation thereto, said photoconductive insulating layer comprising a composition containing from about 0.1 to about 99.9 weight percent of at least one photogenerator compound of the formula ##STR6## wherein R is hydrogen or nitrile; and R', R" and R'" are independently selected from an aliphatic hydrocarbon radical having from about 1 to about 10 carbon atoms; phenyl; or substituted phenyl, said phenyl substituents being capable of releasing electrons to relatively electron deficient centers within the compound amino; diarylamino; dialkylamino or alkoxy; n can range from 0 up to the potential number of positions of substitution on the aromatic ring system in an insulating polymeric matrix, the minimum concentration of photogenerator compound relative to polymeric matrix being sufficient to render the composition photoconductive.
Claim 14
Dependent Claim
138 words
An electrophotographic imaging member comprising a conductive substrate and a photoconductive insulating layer operatively disposed in relation thereto, said photoconductive insulating layer comprising a composition containing from about 0.1 to about 99.9 weight percent of at least one photogenerator compound of the formula ##STR6## wherein R is hydrogen or nitrile; and R', R" and R'" are independently selected from an aliphatic hydrocarbon radical having from about 1 to about 10 carbon atoms; phenyl; or substituted phenyl, said phenyl substituents being capable of releasing electrons to relatively electron deficient centers within the compound amino; diarylamino; dialkylamino or alkoxy; n can range from 0 up to the potential number of positions of substitution on the aromatic ring system in an insulating polymeric matrix, the minimum concentration of photogenerator compound relative to polymeric matrix being sufficient to render the composition photoconductive.
Claim 15
Dependent Claim
13 words
The imaging member of claim 10, wherein the photogenerator compound is a 3-dicyanovinyl-N-alkylcarbazole.
Claim 16
Dependent Claim
13 words
The imaging member of claim 10, wherein the photogenerator compound is a 3-tricyanovinyl-N-alkylcarbazole.
Claim 17
Dependent Claim
155 words
An electrostatographic imaging process comprising a. providing an electrophotographic imaging member having a conductive substrate and a photoconductive insulating layer operatively disposed in relation thereto, said photoconductive insulating layer comprising a composition containing from about 0.1 to about 99.9 weight percent of at least one photogenerator compound of the formula ##STR7## wherein R is hydrogen or nitrile; and R', R", and R'" are independently selected from an aliphatic hydrocarbon radical having from about 1 to about 10 carbon atoms; phenyl; or substituted phenyl, said phenyl substituents being capable of releasing electrons to relatively electron deficient centers within the compound amino; diarylamino; dialkylamino or alkoxy; n can range from 0 up to the potential number of positions of substitution on the aromatic ring system in an insulating polymeric matrix, the minimum concentration of photogenerator compound relative to polymeric matrix being sufficient to render the composition photoconductive; and b. forming a latent electrostatic image on said member.
Claim 18
Dependent Claim
155 words
An electrostatographic imaging process comprising a. providing an electrophotographic imaging member having a conductive substrate and a photoconductive insulating layer operatively disposed in relation thereto, said photoconductive insulating layer comprising a composition containing from about 0.1 to about 99.9 weight percent of at least one photogenerator compound of the formula ##STR7## wherein R is hydrogen or nitrile; and R', R", and R'" are independently selected from an aliphatic hydrocarbon radical having from about 1 to about 10 carbon atoms; phenyl; or substituted phenyl, said phenyl substituents being capable of releasing electrons to relatively electron deficient centers within the compound amino; diarylamino; dialkylamino or alkoxy; n can range from 0 up to the potential number of positions of substitution on the aromatic ring system in an insulating polymeric matrix, the minimum concentration of photogenerator compound relative to polymeric matrix being sufficient to render the composition photoconductive; and b. forming a latent electrostatic image on said member.
Claim 19
Dependent Claim
13 words
The imaging process of claim 13, wherein the photogenerator compound is a 3-dicyanovinyl-N-alkyl-carbazole.
Claim 20
Dependent Claim
14 words
The imaging process of claim 13, wherein the photogenerator compound is a 3-tricyanovinyl-N-alkyl carbazole.
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) | 1980-02-01 | 1980-08-02 | 1981-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-01 | 1984-08-02 | 1985-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-01 | 1988-08-02 | 1989-02-01 | $7700.00 | Window Closed / Lapsed |