Patent US4407920A successfully refreshed from Google Patents.
US4407920A
Expired / Lapsed
US
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Silicone ammonium salts and photoresponsive devices containing same
Assignee: Xerox Corp
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Filing: 1982-03-19
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Granted: 1983-10-04
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Expires: 2002-03-19
Abstract
Abstract This invention is directed to a photoresponsive device comprised of a substrate, a photoconductive composition comprised of an inorganic photoconductive composition, or a layered organic photoresponsive device comprised of a photogenerating layer and a charge transport layer, followed by an overcoating top layer of a silicone resin containing therein a silicone containing ammonium salt of the formula ##STR1## wherein, R 1 , R 2 , R 3 , are independently selected from the group consisting of aliphatic and substituted aliphatic radicals, wherein the substituents include for example alkyl radicals, R 4 is selected from the group consisting of aliphatic radicals, substituted aliphatic radicals, and the group ##STR2## wherein Y is a number of from about 2 to about 4, and R 5 is hydrogen or an alkyl radical, X is an anion, and Z is a number of from 1 to about 5.
Inventors
- 👤 Lieng-Huang Lee
- 👤 Deborah N. Landry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:32
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/14; G03G5/147; G03G5/14708; G03G5/14713; G03G5/14747; G03G5/14773
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
135 words
An improved photoresponsive device consisting essentially of a substrate, a photoconductive composition comprised of an inorganic photoconductive composition, or a layered organic photoresponsive device comprised of a photogenerating layer and a charge transport layer, followed by an overcoating top layer of a silicone resin containing therein as an adhesive layer a silicone containing ammonium salt of the formula ##STR12## wherein, R 1 , R 2 , R 3 , are independently selected from the group consisting of aliphatic and substituted aliphatic radicals, R 4 is selected from the group consisting of aliphatic radicals, substituted aliphatic radicals, and the group ##STR13## wherein Y is anumber of from about 2 to about 4, and R 5 is hydrogen or an alkyl radical, X is an anion, and Z is a number of from 1 to about 5.
Claim 2
Dependent Claim
135 words
An improved photoresponsive device consisting essentially of a substrate, a photoconductive composition comprised of an inorganic photoconductive composition, or a layered organic photoresponsive device comprised of a photogenerating layer and a charge transport layer, followed by an overcoating top layer of a silicone resin containing therein as an adhesive layer a silicone containing ammonium salt of the formula ##STR12## wherein, R 1 , R 2 , R 3 , are independently selected from the group consisting of aliphatic and substituted aliphatic radicals, R 4 is selected from the group consisting of aliphatic radicals, substituted aliphatic radicals, and the group ##STR13## wherein Y is anumber of from about 2 to about 4, and R 5 is hydrogen or an alkyl radical, X is an anion, and Z is a number of from 1 to about 5.
Claim 3
Dependent Claim
32 words
A photoresponsive device in accordance with claim 1 wherein the silicone containing ammonium salt is present as a separate layer situated between the silicone resin top coating and the inorganic photoconductive composition.
Claim 4
Dependent Claim
39 words
A photoresponsive device in accordance with claim 1 wherein R 1 , R 2 , R 3 and R 4 are alkyl radicals containing from about 1 to about 6 carbon atoms, X is halogen, and y is 3.
Claim 5
Dependent Claim
29 words
A photoresponsive device in accordance with claim 1 wherein R 1 , R 2 , R 3 and R 4 are methyl, X is chloride, and y is 3.
Claim 6
Dependent Claim
23 words
A photoresponsive device in accordance with claim 1 wherein the silicone containing ammonium salt is methacryloxy ethyl dimethyl [3-trimethoxy silyl propyl] ammonium chloride.
Claim 7
Dependent Claim
22 words
A photoresponsive device in accordance with claim 1 wherein the silicone containing ammonium salt is methacryloxy ethyl dimethyl [3-trimethoxy silyl propyl] acetate.
Claim 8
Dependent Claim
22 words
A photoresponsive device in accordance with claim 1 wherein the silicone containing ammonium salt is methacryloxy ethyl dimethyl [3-trimethoxy silyl propyl] formate.
Claim 9
Dependent Claim
22 words
A photoresponsive device in accordance with claim 1 wherein the silicone containing ammonium salt is methacryloxy ethyl dimethyl [3-trimethoxy silyl propyl] bromide.
Claim 10
Dependent Claim
22 words
A photoresponsive device in accordance with claim 1 wherein the silicone containing ammonium salt is methacryloxy ethyl dimethyl [3-trimethoxy silyl propyl] chloride.
Claim 11
Dependent Claim
23 words
A photoresponsive device in accordance with claim 1 wherein the silicone containing ammonium salt is acryloxy ethyl dimethyl [3-trimethoxy silyl propyl] ammonium chloride.
Claim 12
Dependent Claim
22 words
A photoresponsive device in accordance with claim 1 wherein the silicone containing ammonium salt is acryloxy ethyl dimethyl [3-trimethoxy silyl propyl] acetate.
Claim 13
Dependent Claim
22 words
A photoresponsive device in accordance with claim 1 wherein the silicone containing ammonium salt is acryloxy ethyl dimethyl [3-trimethoxy silyl propyl] formate.
Claim 14
Dependent Claim
22 words
A photoresponsive device in accordance with claim 1 wherein the silicone containing ammonium salt is acryloxy ethyl dimethyl [3-trimethoxy silyl propyl] bromide.
Claim 15
Dependent Claim
22 words
A photoresponsive device in accordance with claim 1 wherein the silicone containing ammonium salt is acryloxy ethyl dimethyl [3-trimethoxy silyl propyl] chloride.
Claim 16
Dependent Claim
22 words
A photoresponsive device in accordance with claim 1 wherein the silicone containing ammonium salt is acryloxy ethyl dimethyl [3-trimethoxy silyl propyl] acetate.
Claim 17
Dependent Claim
32 words
A photoresponsive device in accordance with claim 1 wherein R 1 , R 2 , R 3 , and R 4 are ethyl, X is chloride, and Y is the number 3.
Claim 18
Dependent Claim
18 words
A photoresponsive device in accordance with claim 1 wherein the inorganic photoconductive composition is comprised of amorphous selenium.
Claim 19
Dependent Claim
20 words
A photoresponsive device in accordance with claim 1 wherein the inorganic photoconductive composition is comprised of an amorphous selenium alloy.
Claim 20
Dependent Claim
32 words
A photoresponsive device in accordance with claim 1 wherein the selenium alloy is an arsenic selenium alloy, a selenium tellurium alloy, a halogen doped selenium substance, or a halogen doped selenium alloy.
Claim 21
Dependent Claim
13 words
A photoresponsive device in accordance with claim 19 wherein the halogen is chlorine.
Claim 22
Dependent Claim
38 words
A photoresponsive device in accordance with claim 1 wherein the organic photoconductive composition is comprised of a generating layer containing vanadyl phthalocyanine or triganal selenium, and the transport layer is comprised of N,N'-diphenyl-N,N'-bis(3-methylphenyl)1,1'-biphenyl-4,4'-diamine dispersed in a polycarbonate resin.
Claim 23
Dependent Claim
34 words
A photoresponsive device in accordance with claim 21 wherein the charge transport layer is in contact with an aluminum substrate and the photogenerating layer is the top layer in contact with the transport layer.
Claim 24
Dependent Claim
36 words
A photoresponsive device in accordance with claim 1 wherein the layered organic photoresponsive device is comprised of a transport layer, a photogenerating layer in contact therewith, and as a top layer a halogen doped selenium alloy.
Claim 25
Dependent Claim
20 words
An improved photoresponsive device in accordance with claim 1 wherein the resulting device has a residual potential of substantially zero.
Claim 26
Dependent Claim
31 words
An improved photoresponsive device in accordance with claim 22 wherein the silicone containing ammonium salt is present as a separate layer situated between the silicone top coating and the transport layer.
Claim 27
Dependent Claim
26 words
An improved photoresponsive device in accordance with claim 1 wherein the residual potential of the resulting device ranges from about 13 volts to about 30 volts.
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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) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |