Patent EP0095910A2 successfully refreshed from Google Patents.
EP0095910A2
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EP
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A process for preparing overcoated electrophotographic imaging members
Assignee: Xerox Corp
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Filing: 1983-05-27
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Granted: —
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Expires: 2003-05-27
Abstract
Abstract A process for forming an overcoated electrophotographic imaging member by applying a coating of a cross-linkable siloxanol-colloidal silica hybrid material on an electrophotographic imaging member and thereafter contacting the coating with a fugitive ammonia gas condensation catalyst until the siloxanol-colloidal silica hybrid material forms a cross-linked solid layer. The cross-linkable siloxanol-collaidal silica hybrid material may be prepared by hydrolyzing trifunctional organosilanes and stabilizing the hydrolyzed silanes with collidal silica. The electrophotographic imaging member may comprise inorganic or organic photoconductive components in one or more layers.
Inventors
- 👤 Richard L. Schank
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 07:34
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/14; G03G5/147; G03G5/14708; G03G5/14713; G03G5/14791; G03G5/14704; G03G5/14747; G03G5/14773
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
57 words
A process for forming an overcoated electrophotographic imaging member comprising the steps of providing an electrophotographic imaging member, applying a coating of a cross-linkable siloxanol-colloidal silica hybrid material on an electrophotographic imaging member, and contacting said coating with an ammonia gas condensation catalyst until the siloxanol-colloidal silica hybrid material forms a cross-linked solid organosiloxane-silica hybrid polymer layer.
Claim 2
Dependent Claim
57 words
A process for forming an overcoated electrophotographic imaging member comprising the steps of providing an electrophotographic imaging member, applying a coating of a cross-linkable siloxanol-colloidal silica hybrid material on an electrophotographic imaging member, and contacting said coating with an ammonia gas condensation catalyst until the siloxanol-colloidal silica hybrid material forms a cross-linked solid organosiloxane-silica hybrid polymer layer.
Claim 3
Dependent Claim
26 words
A process according to claim 1 wherein said cross-linked organosiloxane-silica hybrid polymer solid layer has a thickness of between about .5 micron and about 2 microns.
Claim 4
Dependent Claim
32 words
A process according to claim 2 wherein said coating is contacted with said ammonia gas condensation catalyst at about room temperature until said coating forms a cross-linked organosiloxane-silica hybrid polymer solid layer.
Claim 5
Dependent Claim
40 words
A process according to any preceding claim, including removing said ammonia gas condensation catalyst from said coating after said coating forms a cross-linked organosiloxane-silica hybrid polymer solid layer whereby said layer is substantially free of any ambient temperature curing catalyst.
Claim 6
Dependent Claim
21 words
A process according to any preceding claim, wherein said cross-linked organosiloxane-silica hybrid polymer layer is substantially free of difunctional silicone materials.
Claim 7
Dependent Claim
28 words
A process according to any preceding claim, wherein said ammonia gas condensation catalyst contacts the coating until said cross-linked organosiloxane polymer solid layer is substantially insoluble in acetone.
Claim 8
Dependent Claim
22 words
A process according to any preceding claim, wherein said coating is applied to an amorphous selenium layer of an electrophotographic imaging member.
Claim 9
Dependent Claim
23 words
A process according to any of claim 1-6, wherein said coating is applied to an selenium alloy layer of an electrophotographic imaging member.
Claim 10
Dependent Claim
23 words
A process according to any of claims 1-6, wherein said coating is applied to a charge generating layer of an electrophotographic imaging member.
Claim 11
Dependent Claim
23 words
A process according to any of claims 1-6, wherein said coating is applied to a charge transport layer of an electrophotographic imaging member.
Claim 12
Dependent Claim
32 words
A process according to claim 10, wherein said charge transport layer comprises a diamine dispersed in a polycarbonate resin, said diamine having the following formula: wherein X is CH 3 or C1.
References Cited (Backward Citations)
No citation records indexed.
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