US5614341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayered photoreceptor with adhesive and intermediate layers
Assignee: Xerox Corp
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Filing: 1996-06-24
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Granted: 1997-03-25
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Expires: 2016-06-24
Abstract
Abstract An electrophotographic imaging member is disclosed including a support substrate having a two layered electrically conductive ground plane layer comprising a layer comprising zirconium over a layer comprising titanium, a hole blocking layer, an adhesive layer comprising a copolyester film forming resin, a charge generation layer comprising a perylene or a phthalocyanine, an intermediate layer over and in contact with the charge generation layer, the intermediate layer comprising a carbazole polymer and an optional charge transporting molecule, and a hole transport layer, the hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from the charge generation layer and transporting the holes through the charge transport layer.
Inventors
- 👤 Satchidanand Mishra
- 👤 Kathleen M. Carmichael
- 👤 Donald P. Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:38
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/14; G03G5/142; G03G5/10; G03G5/102; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0696
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
125 words
An electrophotographic imaging member comprising a support substrate having a two electrically conductive ground plane layer comprising a layer comprising zirconium over a layer comprising titanium, a hole blocking layer, an adhesive layer comprising a copolyester film forming resin, a charge generation layer comprising a perylene or a phthalocyanine, an intermediate layer in contact with said charge generation layer, said intermediate layer comprising a film forming carbazole polymer, and a hole transport layer in contact with said intermediate layer, said hole transport layer being substantially nonabsorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from said charge generation layer and transporting said holes through said charge transport layer.
Claim 2
Dependent Claim
125 words
An electrophotographic imaging member comprising a support substrate having a two electrically conductive ground plane layer comprising a layer comprising zirconium over a layer comprising titanium, a hole blocking layer, an adhesive layer comprising a copolyester film forming resin, a charge generation layer comprising a perylene or a phthalocyanine, an intermediate layer in contact with said charge generation layer, said intermediate layer comprising a film forming carbazole polymer, and a hole transport layer in contact with said intermediate layer, said hole transport layer being substantially nonabsorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from said charge generation layer and transporting said holes through said charge transport layer.
Claim 3
Dependent Claim
32 words
An electrophotographic imaging member according to claim 1 wherein said carbazole polymer has the following structural formula: ##STR5## wherein n, degree of polymerization is number of between about 800 and about 6,000.
Claim 4
Dependent Claim
32 words
An electrophotographic imaging member according to claim 1 wherein said carbazole polymer has the following structural formula: ##STR6## wherein n, degree of polymerization is number of between about 800 and about 5,500.
Claim 5
Dependent Claim
32 words
An electrophotographic imaging member according to claim 1 wherein said carbazole polymer has the following structural formula: ##STR7## wherein n, degree of polymerization is number of between about 1,000 and about 5,000.
Claim 6
Dependent Claim
32 words
An electrophotographic imaging member according to claim 1 wherein said carbazole polymer has the following structural formula: ##STR8## wherein n, degree of polymerization is number of between about 1,000 and about 5,000.
Claim 7
Dependent Claim
22 words
An electrophotographic imaging member according to claim 1 wherein said intermediate layer comprises said carbazole polymer and an arylamine charge transport molecule.
Claim 8
Dependent Claim
37 words
An electrophotographic imaging member according to claim 6 wherein said intermediate layer comprises between about 5 percent and about 40 by weight of said arylamine charge transport molecule, based on the total weight of said intermediate layer.
Claim 9
Dependent Claim
24 words
An electrophotographic imaging member according to claim 1 wherein said intermediate layer has a thickness of between about 0.03 micrometer and about 2 micrometers.
Claim 10
Dependent Claim
23 words
An electrophotographic imaging member according to claim 1 wherein said charge generation layer comprises a homogeneous vacuum sublimation deposited film of said perylene.
Claim 11
Dependent Claim
23 words
An electrophotographic imaging member according to claim 1 wherein said charge generation layer comprises a homogeneous vacuum sublimation deposited film of said phthalocyanine.
Claim 12
Dependent Claim
24 words
An electrophotographic imaging member according to claim 1 wherein said charge generation layer comprises said perylene dispersed as particles in a film forming binder.
Claim 13
Dependent Claim
16 words
An electrophotographic imaging member according to claim 11 wherein said film forming binder is poly(4,4'-diphenyl-1,1'-cyclohexane carbonate).
Claim 14
Dependent Claim
25 words
An electrophotographic imaging member according to claim 1 wherein said charge generation layer comprises said phthalocyanine is dispersed as particles in a film forming binder.
Claim 15
Dependent Claim
15 words
An electrophotographic imaging member according to claim 13 wherein said film forming binder is polycarbonate.
Claim 16
Dependent Claim
27 words
An electrophotographic imaging member according to claim 1 wherein said two layered conductive ground plane layer has a thickness of between about 120 and about 300 angstroms.
Claim 17
Dependent Claim
29 words
An electrophotographic imaging member according to claim 1 wherein said zirconium layer in said two layered conductive ground plane layer has a thickness of at least about 60 angstroms.
Claim 18
Dependent Claim
16 words
An electrophotographic imaging member according to claim 1 wherein said hole blocking layer comprises a siloxane.
Claim 19
Dependent Claim
15 words
An electrophotographic imaging member according to claim 17 wherein said siloxane is an amino siloxane.
Claim 20
Dependent Claim
16 words
An electrophotographic imaging member according to claim 1 wherein said charge generation layer also comprises polyvinylcarbazole.
Claim 21
Dependent Claim
14 words
An electrophotographic imaging member according to claim 1 wherein said perylene is benzimidazole perylene.
Claim 22
Dependent Claim
39 words
An electrophotographic imaging member according to claim 1 wherein said charge generation layer also comprises between about 20 percent about 90 percent by volume of said benzimidazole perylene particles, based on the total volume of said charge generation layer.
Claim 23
Dependent Claim
38 words
An electrophotographic imaging member according to claim 1 wherein said copolyester film forming resin in said adhesive layer is a linear saturated copolyester reaction product of ethylene glycol with terephthalic acid, isophthalic acid, adipic acid and azelaic acid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-03-24 | 2000-09-23 | 2001-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-24 | 2004-09-23 | 2005-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-24 | 2008-09-23 | 2009-03-25 | $7700.00 | Window Closed / Lapsed |