US4072519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductive composition, and element
Assignee: Xerox Corp
•
Filing: 1976-08-11
•
Granted: 1978-02-07
•
Expires: 1996-08-11
Abstract
Abstract Photoconductive composition comprising an insulating polymeric matrix and a compound of the formula ##STR1## WHEREIN Ar is anthryl; naphthyl; pyrenyl; indolyl; N-alkyl 2-CARBAZYL; JULOLIDINYL; AND THE SUBSTITUTED ANALOGUES THEREOF, WHEREIN SAID SUBSTITUENTS ARE CAPABLE OF RELEASING ELECTRONS TO THE RELATIVELY ELECTRON DEFICIENT CENTERS WITHIN THE COMPOUND; X is --NO 2 or halogen; and N can range from 1 to 5. 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
- 👤 James M. Pearson
- 👤 David J. Williams
- 👤 William W. Limburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:11
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/08; C07D209/10; C07D209/12; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; C07C; C07C2603/00; C07C2603/02; C07C2603/40; C07C2603/42; C07C2603/50
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
83 words
A photoconductive composition comprising a solid solution of at least one photogenerator compound represented by the formula ##STR3## wherein Ar is indolyl, N-alkyl 2-carbazyl, julolidinyl and the substituted analogues thereof, wherein said substituents are capable of releasing electrons to the relatively electron deficient centers within the compound; X is --NO 2 or halogen; and n is from 1 to 5 and an insulating polymeric matrix, said polymeric matrix being capable of rapid and efficient transport of charge carriers of at least one polarity.
Claim 2
Dependent Claim
83 words
A photoconductive composition comprising a solid solution of at least one photogenerator compound represented by the formula ##STR3## wherein Ar is indolyl, N-alkyl 2-carbazyl, julolidinyl and the substituted analogues thereof, wherein said substituents are capable of releasing electrons to the relatively electron deficient centers within the compound; X is --NO 2 or halogen; and n is from 1 to 5 and an insulating polymeric matrix, said polymeric matrix being capable of rapid and efficient transport of charge carriers of at least one polarity.
Claim 3
Dependent Claim
14 words
The composition as defined in claim 1 wherein the photogenerator compound is N-ethyl-3-methyl-5-(2,4,6-trinitrostyryl) indole.
Claim 4
Dependent Claim
14 words
The composition as defined in claim 1 wherein the photogenerator compound is 9-(2,4,6-trinitrostyryl) julolidine.
Claim 5
Dependent Claim
86 words
A composition comprising from about 0.1 to about 99.9 weight percent of at least one photogenerator compound represented by the formula ##STR4## wherein Ar is indolyl, N-alkyl 2-carbazyl, julolidinyl and the substituted analogues thereof, wherein said substituents are capable of releasing electrons to the relatively electron deficient centers within the compound; X is --NO 2 or halogen; and n is from 1 to 5 in an insulating polymeric matrix, the minimum concentration of photogenerator compound relative to polymeric matrix being sufficient to render the composition photoconductive.
Claim 6
Dependent Claim
86 words
A composition comprising from about 0.1 to about 99.9 weight percent of at least one photogenerator compound represented by the formula ##STR4## wherein Ar is indolyl, N-alkyl 2-carbazyl, julolidinyl and the substituted analogues thereof, wherein said substituents are capable of releasing electrons to the relatively electron deficient centers within the compound; X is --NO 2 or halogen; and n is from 1 to 5 in an insulating polymeric matrix, the minimum concentration of photogenerator compound relative to polymeric matrix being sufficient to render the composition photoconductive.
Claim 7
Dependent Claim
14 words
The composition as defined in claim 4 wherein the photogenerator compound is N-ethyl-3-methyl-5-(2,4,6-trinitrostyryl) indole.
Claim 8
Dependent Claim
14 words
The composition as defined in claim 4 wherein the photogenerator compound is 9-(2,4,6-trinitrostyryl) julolidine.
Claim 9
Dependent Claim
108 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 ##STR5## wherein Ar is indolyl, N-alkyl 2-carbazyl, julolidinyl and the substituted analogues thereof, wherein said substituents are capable of releasing electrons to the relatively electron deficient centers within the compound; X is --NO 2 or halogen; and n is from 1 to 5 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
108 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 ##STR5## wherein Ar is indolyl, N-alkyl 2-carbazyl, julolidinyl and the substituted analogues thereof, wherein said substituents are capable of releasing electrons to the relatively electron deficient centers within the compound; X is --NO 2 or halogen; and n is from 1 to 5 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
14 words
The imaging member as defined in claim 7 wherein the photogenerator compound is N-ethyl-3-methyl-5-(2,4,6-trinitrostyryl)indole.
Claim 12
Dependent Claim
15 words
The imaging member as defined in claim 7 wherein the photogenerator compound is 9-(2,4,6-trinitrostyryl) julolidine.
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) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |