US4806444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arylamine polymers and systems utilizing arylamine polymers
Assignee: Xerox Corp
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Filing: 1987-06-10
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Granted: 1989-02-21
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Expires: 2007-06-10
Abstract
Abstract An electrostatographic imaging member and an electrophotographic imaging process for using the imaging member are disclosed in which the imaging member comprises a substrate and an electrophotoconductive layer, the imaging member comprising a polymeric arylamine compound represented by the formula: ##STR1## wherein: n is between about 5 and about 5,000, Z is selected from certain specified aromatic and fused ring groups, m is 0 or 1, Ar is selected from certain specified aromatic groups, and Ar' is selected from certain specified aromatic groups. The imaging member may comprise a substrate, charge generation layer and a charge transport layer.
Inventors
- 👤 John F. Yanus
- 👤 John W. Spiewak
- 👤 Dale S. Renfer
- 👤 William W. Limburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:02
CPC Classifications
C; C08; C08G; C08G64/00; C08G64/04; C08G64/06; C08G64/08; C08G64/12; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/07; G03G5/071; G03G5/072; G03G5/073
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
119 words
An electrostatographic imaging member comprising a support layer and at least one electrophotoconductive layer, said imaging member comprising an arylamine compound represented by the formula: ##STR12## wherein: n is between 5 and about 5,000, Z is selected from the group consisting of: ##STR13## and --Ar--(X) s --Ar-- m is 0 or 1, s is 0, 1, 2 or 3 Ar is selected from the group consisting of: ##STR14## R is selected from the group consisting of --CH 3 , --C 2 H 5 , --C 3 H 7 , and --C 4 H 9 , Ar' is selected from the group consisting of: ##STR15## X is selected from the group consisting of: ##STR16## s' is 0, 1 or 2.
Claim 2
Dependent Claim
119 words
An electrostatographic imaging member comprising a support layer and at least one electrophotoconductive layer, said imaging member comprising an arylamine compound represented by the formula: ##STR12## wherein: n is between 5 and about 5,000, Z is selected from the group consisting of: ##STR13## and --Ar--(X) s --Ar-- m is 0 or 1, s is 0, 1, 2 or 3 Ar is selected from the group consisting of: ##STR14## R is selected from the group consisting of --CH 3 , --C 2 H 5 , --C 3 H 7 , and --C 4 H 9 , Ar' is selected from the group consisting of: ##STR15## X is selected from the group consisting of: ##STR16## s' is 0, 1 or 2.
Claim 3
Dependent Claim
22 words
An electrostatographic imaging member according to claim 1 wherein said imaging member comprises a charge generating layer and a charge transport layer.
Claim 4
Dependent Claim
68 words
An electrostatographic imaging member according to claim 2 wherein said charge transport layer comprises said arylamine compound, said charge transport layer being substantially transparent to radiation in the region in which said imaging member is exposed during electrostatographic imaging and capable of supporting the injection of photo-generated holes from said charge generating layer and transporting these holes through said charge transport layer to selectively discharge a surface charge.
Claim 5
Dependent Claim
24 words
An electrostatographic imaging member according to claim 1 wherein said charge generating layer comprises a photogenerating compound and a binder comprising said arylamine compound.
Claim 6
Dependent Claim
20 words
An electrostatographic imaging member according to claim 1 wherein said imaging member comprises a protective overcoating comprising said arylamine compound.
Claim 7
Dependent Claim
172 words
An electrophotographic imaging process comprising forming an electrostatic latent image on the imaging surface of an electrostatographic imaging member comprising a support layer and at least one electrophotoconductive layer, said imaging member comprising an arylamine compound represented by the formula: ##STR17## wherein: n is between about 5 and about 5,000, Z is selected from the group consisting of: ##STR18## and --Ar--(X) s --Ar-- m is 0 or 1, s is 0, 1, 2 or 3 Ar is selected from the group consisting of: ##STR19## R is selected from the group consisting of --CH 3 , --C 2 H 5 , --C 3 H 7 , and --C 4 H 9 , Ar' is selected from the group consisting of: ##STR20## X is selected from the group consisting of: ##STR21## s' is 0, 1 or 2, and contacting said imaging surface with a developer comprising electrostatically attractable marking particles whereby said electrostatically attractable marking particles deposit on said imaging surface in conformance with said electrostatic latent image to form a marking particle image.
Claim 8
Dependent Claim
172 words
An electrophotographic imaging process comprising forming an electrostatic latent image on the imaging surface of an electrostatographic imaging member comprising a support layer and at least one electrophotoconductive layer, said imaging member comprising an arylamine compound represented by the formula: ##STR17## wherein: n is between about 5 and about 5,000, Z is selected from the group consisting of: ##STR18## and --Ar--(X) s --Ar-- m is 0 or 1, s is 0, 1, 2 or 3 Ar is selected from the group consisting of: ##STR19## R is selected from the group consisting of --CH 3 , --C 2 H 5 , --C 3 H 7 , and --C 4 H 9 , Ar' is selected from the group consisting of: ##STR20## X is selected from the group consisting of: ##STR21## s' is 0, 1 or 2, and contacting said imaging surface with a developer comprising electrostatically attractable marking particles whereby said electrostatically attractable marking particles deposit on said imaging surface in conformance with said electrostatic latent image to form a marking particle image.
Claim 9
Dependent Claim
15 words
An electrophotographic imaging process according to claim 6 wherein said developer is a liquid developer.
Claim 10
Dependent Claim
17 words
An electrophotographic imaging process according to claim 6 wherein said liquid developer comprises an organic carrier fluid.
Claim 11
Dependent Claim
18 words
An electrophotographic imaging process according to claim 8 including transfering said marking particle image to a receiving member.
Claim 12
Dependent Claim
19 words
An electrophotographic imaging process according to claim 9 including repeating said forming, contacting and transferring steps at least once.
Claim 13
Dependent Claim
87 words
An electrophotographic imaging process according to claim 10 wherein said imaging member comprises a charge generating layer and a charge transport layer comprising said arylamine compound, said charge transport layer being substantially transparent to radiation in the region in which said imaging member is exposed during electrophotographic imaging and capable of supporting the injection of photo-generating holes from said charge generating layer and transporting said holes through said charge transport layer to selectively discharge an electrostatic charge on said imaging surface to form said electrostatic latent image.
Claim 14
Dependent Claim
15 words
An electrophotographic imaging process according to claim 6 wherein said developer is a dry developer.
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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) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |