Patent US4282298A successfully refreshed from Google Patents.
US4282298A
Expired / Lapsed
US
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Layered imaging member and method
Assignee: Xerox Corp
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Filing: 1973-06-20
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Granted: 1981-08-04
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Expires: 1993-06-20
Abstract
Abstract A photosensitive member having at least two electrically operative layers. The first layer comprises a photoconductive layer which is capable of photogenerating and injecting photo-excited holes into a contiguous active layer. The active layer comprises a transparent organic material which is substantially non-absorbing in the spectral region of intended use, but which is "active" in that it allows injection of photo-excited holes from the photoconductive layer, and allows these holes to be transported through the active layer. This structure may be imaged in the conventional xerographic mode which usually includes charging, exposure to light, and development.
Inventors
- 👤 Michael Smith
- 👤 Charles F. Hackett
- 👤 Richard W. Radler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:11
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/043; G03G5/0436
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
147 words
An imaging member comprising a layer of unoriented inorganic photoconductive material contained on a supporting substrate and a contacting layer of an electrically active organic material overlaying the photoconductive layer, with the ratio of the thickness of the active layer to the photoconductive layer being maintained from about 2:1 to 200:1, said photoconductive layer being at least about 0.05 micron thick and exhibiting the capability of photo-excited hole generation and injection, said active organic material being capable of supporting the injection of photo-excited holes from said photoconductive layer and transporting said holes through said active layer, wherein said active layer comprises at least one material selected from the group consisting of poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-debanzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, 2,3-benzochrysene, anthraquinone, dibenzothiophene, and naphthalene.
Claim 2
Dependent Claim
147 words
An imaging member comprising a layer of unoriented inorganic photoconductive material contained on a supporting substrate and a contacting layer of an electrically active organic material overlaying the photoconductive layer, with the ratio of the thickness of the active layer to the photoconductive layer being maintained from about 2:1 to 200:1, said photoconductive layer being at least about 0.05 micron thick and exhibiting the capability of photo-excited hole generation and injection, said active organic material being capable of supporting the injection of photo-excited holes from said photoconductive layer and transporting said holes through said active layer, wherein said active layer comprises at least one material selected from the group consisting of poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-debanzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, 2,3-benzochrysene, anthraquinone, dibenzothiophene, and naphthalene.
Claim 3
Dependent Claim
18 words
The member of claim 1 in which the photoconductive layer comprises inorganic photoconductive particles dispersed in a binder.
Claim 4
Dependent Claim
12 words
The member of claim 1 in which the substrate is electrically conductive.
Claim 5
Dependent Claim
18 words
The member of claim 3 in which the photoconductive layer is contained on a substantially transparent supporting substrate.
Claim 6
Dependent Claim
31 words
The member of claim 1 in which the photoconductive layer comprises at least one material selected from the group consisting of vitreous selenium, a selenium alloy, trigonal selenium and cadmium sulfoselenide.
Claim 7
Dependent Claim
182 words
An imaging member comprising a layer of unoriented inorganic photoconductive material contained on a supporting substrate and a contacting layer of an electrically active organic material overlaying the photoconductive layer, with the ratio of the thickness of the active layer to the photoconductive layer being maintained from about 2:1 to 200:1, said photoconductive layer being at least about 0.05 micron thick and exhibiting the capability of photo-excited hole generation and injection, said active organic material being capable of supporting the injection of photo-excited holes from said photoconductive layer and transporting said holes through said active layer, wherein said active layer comprises at least one material selected from the group consisting of poly-N-vinyl carbazole, poly-1-vinyl pyrene, poly-9-vinyl anthracene, polyacenaphthalene, poly-9-(4-pentenyl)-carbazole, poly-9-(5-hexyl)-carbazole, polymethylene pyrene, poly 1-(-αpyrenyl)butadiene, N-substituted polymeric acrylic acid amides of pyrene, poly-3-amino carbazole, 1,3-dibromo-poly-N-vinyl carbazole, 3,6-dibromo-poly-N-vinyl carbazole, poly-2-vinyl carbazole, poly-3-vinyl carbazole, N-vinyl carbazole/methyl acrylate copolymers, 1-vinyl pyrene/butadiene ABA, and AB block polymers, carbazole, N-ethylcarbazole, N-phenylcarbazole, pyrene, tetraphene, 1-acetylpyrene, N-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, 2,3-benzochrysene, anthraquinone, dibenzothiophene, naphthalene and 1-phenylnaphthalene.
Claim 8
Dependent Claim
182 words
An imaging member comprising a layer of unoriented inorganic photoconductive material contained on a supporting substrate and a contacting layer of an electrically active organic material overlaying the photoconductive layer, with the ratio of the thickness of the active layer to the photoconductive layer being maintained from about 2:1 to 200:1, said photoconductive layer being at least about 0.05 micron thick and exhibiting the capability of photo-excited hole generation and injection, said active organic material being capable of supporting the injection of photo-excited holes from said photoconductive layer and transporting said holes through said active layer, wherein said active layer comprises at least one material selected from the group consisting of poly-N-vinyl carbazole, poly-1-vinyl pyrene, poly-9-vinyl anthracene, polyacenaphthalene, poly-9-(4-pentenyl)-carbazole, poly-9-(5-hexyl)-carbazole, polymethylene pyrene, poly 1-(-αpyrenyl)butadiene, N-substituted polymeric acrylic acid amides of pyrene, poly-3-amino carbazole, 1,3-dibromo-poly-N-vinyl carbazole, 3,6-dibromo-poly-N-vinyl carbazole, poly-2-vinyl carbazole, poly-3-vinyl carbazole, N-vinyl carbazole/methyl acrylate copolymers, 1-vinyl pyrene/butadiene ABA, and AB block polymers, carbazole, N-ethylcarbazole, N-phenylcarbazole, pyrene, tetraphene, 1-acetylpyrene, N-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, 2,3-benzochrysene, anthraquinone, dibenzothiophene, naphthalene and 1-phenylnaphthalene.
Claim 9
Dependent Claim
21 words
The member of claim 1 in which the electrically active organic material is blended or mixed with a non-active polymeric material.
Claim 10
Dependent Claim
19 words
The member of claim 1 in which the electrically active organic material is blended or mixed with a plasticizer.
Claim 11
Independent Claim
252 words
A method of imaging which comprises: (a) providing an imaging member having at least two adjacent layers comprising a layer of unoriented inorganic photoconductive material contained on a supporting substrate and a contacting layer of an electrically active organic material overlaying the photoconductive layer, with the ratio of the thickness of the active layer to the photoconductive layer being maintained from about 2:1 to 200:1, said photoconductive layer being at least about 0.05 micron thick and exhibiting the capability of photo-excited hole generation and injection, said active organic material being capable of supporting the injection of photo-excited holes from said photoconductive layer and transporting the holes through said active layer, wherein said active layer comprises at least one material selected from the group consisting of poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene; (b) uniformly negatively electrostatically charging the free surface of the active layer, followed by; (c) exposing said charged layer to a source of activating radiation to which the photoconductive layer is absorbing and to which the active layer is substantially transparent and non-absorbing, the exposure being in the form of a pattern of light and shadow optically projected toward said layer, whereby photo-excited holes generated by said photoconductive layer are injected into and transported through said active layer to form a latent electrostatic image on the free surface of the active layer.
Claim 12
Independent Claim
252 words
A method of imaging which comprises: (a) providing an imaging member having at least two adjacent layers comprising a layer of unoriented inorganic photoconductive material contained on a supporting substrate and a contacting layer of an electrically active organic material overlaying the photoconductive layer, with the ratio of the thickness of the active layer to the photoconductive layer being maintained from about 2:1 to 200:1, said photoconductive layer being at least about 0.05 micron thick and exhibiting the capability of photo-excited hole generation and injection, said active organic material being capable of supporting the injection of photo-excited holes from said photoconductive layer and transporting the holes through said active layer, wherein said active layer comprises at least one material selected from the group consisting of poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene; (b) uniformly negatively electrostatically charging the free surface of the active layer, followed by; (c) exposing said charged layer to a source of activating radiation to which the photoconductive layer is absorbing and to which the active layer is substantially transparent and non-absorbing, the exposure being in the form of a pattern of light and shadow optically projected toward said layer, whereby photo-excited holes generated by said photoconductive layer are injected into and transported through said active layer to form a latent electrostatic image on the free surface of the active layer.
Claim 13
Dependent Claim
17 words
The method of claim 9 in which the latent image is developed to form a visible image.
Claim 14
Dependent Claim
15 words
The method of claim 9 in which the activating radiation is within the visible spectrum.
Claim 15
Dependent Claim
23 words
The method of claim 9 in which the source of activating radiation is in the range of about 4000 to 8000 Angstrom Units.
Claim 16
Dependent Claim
12 words
The method of claim 9 in which the substrate is electrically conductive.
Claim 17
Dependent Claim
94 words
The subject matter of claim 9 or 1 in which the active layer comprises at least one material selected from the group consisting of poly-N-vinyl carbazole, poly-1-vinyl pyrene, poly-9-anthracene, polyacenaphthalene, poly-9-(4-pentenyl)-carbazole, poly-9-(5-hexyl)-carbazole, polymethylene pyrene, poly 1-(-αpyrenyl)butadiene, N-substituted polymeric acrylic acid amides of pyrene, poly-3-amino carbazole, 1,3-dibromo-poly-N-vinyl carbazole, 3,6-dibromo-poly-N-vinyl carbazole, poly-2-vinyl carbazole, poly-3-vinyl carbazole, N-vinyl carbazole/methyl acrylate copolymers, 1-vinyl pyrene/butadiene ABA, and AB block polymers, carbazole, N-ethylcarbazole, N-phenylcarbazole, pyrene, tetraphene, 1-acetylpyrene, N-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, 2,3-benzochrysene, anthraquinone, dibenzothiophene, naphthalene and 1-phenylnaphthalene.
Claim 18
Independent Claim
289 words
A method of imaging which comprises: (a) providing an imaging member having at least two adjacent layers comprising a layer of unoriented inorganic photoconductive material contained on a supporting substrate and a contacting layer of an electrically active organic material overlaying the photoconductive layer, with the ratio of the thickness of the active layer to the photoconductive layer being maintained from about 2:1 to 200:1, said photoconductive layer being at least about 0.05 micron thick and exhibiting the capability of photo-excited hole generation and injection, said active organic material being capable of supporting the injection of photo-excited holes from said photoconductive layer and transporting the holes through said active layer wherein said active layer comprises at least one material selected from the group consisting of polyvinyl carbazole, poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, carbazole, N-ethyl-carbazole, N-phenylcarbazole, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylpyrene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene; (b) uniformly negatively electrostatically charging the free surface of the active layer followed by; (c) exposing said charged layer to a source of activating radiation to which the photoconductive layer is absorbing and to which the active layer is substantially transparent and non-absorbing, the exposure being in the form of a pattern of light and shadow optically projected toward said layer, whereby photo-excited holes generated by said photoconductive layer are injected into and transported through said active layer to form a latent electrostatic image on the free surface of the active layer; (d) developing the latent image to form a visible image; (e) transferring the visible image to a receiving sheet, and (f) repeating steps (b), (c), and (d) at least one additional time.
Claim 19
Independent Claim
289 words
A method of imaging which comprises: (a) providing an imaging member having at least two adjacent layers comprising a layer of unoriented inorganic photoconductive material contained on a supporting substrate and a contacting layer of an electrically active organic material overlaying the photoconductive layer, with the ratio of the thickness of the active layer to the photoconductive layer being maintained from about 2:1 to 200:1, said photoconductive layer being at least about 0.05 micron thick and exhibiting the capability of photo-excited hole generation and injection, said active organic material being capable of supporting the injection of photo-excited holes from said photoconductive layer and transporting the holes through said active layer wherein said active layer comprises at least one material selected from the group consisting of polyvinyl carbazole, poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, carbazole, N-ethyl-carbazole, N-phenylcarbazole, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylpyrene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene; (b) uniformly negatively electrostatically charging the free surface of the active layer followed by; (c) exposing said charged layer to a source of activating radiation to which the photoconductive layer is absorbing and to which the active layer is substantially transparent and non-absorbing, the exposure being in the form of a pattern of light and shadow optically projected toward said layer, whereby photo-excited holes generated by said photoconductive layer are injected into and transported through said active layer to form a latent electrostatic image on the free surface of the active layer; (d) developing the latent image to form a visible image; (e) transferring the visible image to a receiving sheet, and (f) repeating steps (b), (c), and (d) at least one additional time.
Claim 20
Independent Claim
208 words
A method of imaging which comprises: (a) providing an imaging member having at least two adjacent layers comprising a layer of unoriented inorganic photoconductive material contained on a supporting substrate and a contacting layer of an electrically active organic material overlaying the photoconductive layer, with the ratio of the thickness of the active layer to the photoconductive layer being maintained from about 2:1 to 200:1, said photoconductive layer being at least about 0.05 micron thick and exhibiting the capability of photo-excited hole generation and injection, said active organic material being capable of supporting the injection of photo-excited holes from said photoconductive layer and transporting the holes through said active layer, wherein said active layer comprises poly-N-vinylcarbazole; (b) uniformly negatively electrostatically charging the free surface of the active layer, followed by: (c) exposing said charged layer to a source of activating radiation to which the photoconductive layer is absorbing and to which the active layer is substantially transparent and non-absorbing, the exposure being in the form of a pattern of light and shadow optically projected toward said layer, whereby photo-excited holes generated by said photoconductive layer are injected into and transported through said active layer to form a latent electrostatic image on the free surface of the active layer.
Claim 21
Independent Claim
208 words
A method of imaging which comprises: (a) providing an imaging member having at least two adjacent layers comprising a layer of unoriented inorganic photoconductive material contained on a supporting substrate and a contacting layer of an electrically active organic material overlaying the photoconductive layer, with the ratio of the thickness of the active layer to the photoconductive layer being maintained from about 2:1 to 200:1, said photoconductive layer being at least about 0.05 micron thick and exhibiting the capability of photo-excited hole generation and injection, said active organic material being capable of supporting the injection of photo-excited holes from said photoconductive layer and transporting the holes through said active layer, wherein said active layer comprises poly-N-vinylcarbazole; (b) uniformly negatively electrostatically charging the free surface of the active layer, followed by: (c) exposing said charged layer to a source of activating radiation to which the photoconductive layer is absorbing and to which the active layer is substantially transparent and non-absorbing, the exposure being in the form of a pattern of light and shadow optically projected toward said layer, whereby photo-excited holes generated by said photoconductive layer are injected into and transported through said active layer to form a latent electrostatic image on the free surface of the active layer.
Claim 22
Dependent Claim
32 words
The imaging member of claim 1 in which the active layer comprises a material selected from the group consisting of a derivative of an alkyl, nitro, amino, halogen and hydroxy substituted polymers.
Claim 23
Dependent Claim
14 words
The member of claim 1 in which the photoconductive layer comprises a selenium-tellurium alloy.
Claim 24
Dependent Claim
14 words
The member of claim 6 in which the photoconductive layer comprises a selenium-tellurium alloy.
Claim 25
Dependent Claim
114 words
An imaging member comprising a layer of unoriented inorganic photoconductive selenium-tellurium contained on a supporting substrate and a contacting layer of electrically active organic material overlaying the photoconductive layer, with the ratio of the thickness of the active layer to the photoconductive layer being maintained from about 2:1 to 200:1, said photoconductive layer being at least about 0.05 micron thick and exhibiting a capability of photoexcited hole generation and injection, said active organic material being capable of supporting the injection of photoexcited holes from said photoconductive layer and transporting said holes through said active layer, wherein said active layer comprises at least one material selected from the group consisting of poly-1-vinylpyrene and poly-N-vinyl carbazole.
Claim 26
Dependent Claim
114 words
An imaging member comprising a layer of unoriented inorganic photoconductive selenium-tellurium contained on a supporting substrate and a contacting layer of electrically active organic material overlaying the photoconductive layer, with the ratio of the thickness of the active layer to the photoconductive layer being maintained from about 2:1 to 200:1, said photoconductive layer being at least about 0.05 micron thick and exhibiting a capability of photoexcited hole generation and injection, said active organic material being capable of supporting the injection of photoexcited holes from said photoconductive layer and transporting said holes through said active layer, wherein said active layer comprises at least one material selected from the group consisting of poly-1-vinylpyrene and poly-N-vinyl carbazole.
Claim 27
Dependent Claim
123 words
An electrophotographic plate for producing an electrostatic latent image on the top layer thereof which comprises from the bottom up: (a) a conductive substrate, (b) a layer of vitreous selenium having a thickness of from 0.05 to 20 microns, (c) a top layer comprising a member selected from the group consisting of poly-N-vinyl-carbazole, poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene, said top layer being substantially visible ray transmissive and substantially non-light sensitive in the visible range in the absence of a sensitizer, the sensitizer for said top layer consisting essentially of vitreous selenium layer b.
Claim 28
Dependent Claim
123 words
An electrophotographic plate for producing an electrostatic latent image on the top layer thereof which comprises from the bottom up: (a) a conductive substrate, (b) a layer of vitreous selenium having a thickness of from 0.05 to 20 microns, (c) a top layer comprising a member selected from the group consisting of poly-N-vinyl-carbazole, poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene, said top layer being substantially visible ray transmissive and substantially non-light sensitive in the visible range in the absence of a sensitizer, the sensitizer for said top layer consisting essentially of vitreous selenium layer b.
Claim 29
Dependent Claim
151 words
An electrophotographic plate for producing an electrostatic latent image on the top layer thereof which comprises from the bottom up: a. a conductive substrate; b. a layer of vitreous selenium, a vitreous selenium/tellurium alloy, a vitreous selenium/arsenic alloy or phthalocyanine having a thickness of from 0.05 to 20 microns; c. a top layer comprising a member selected from the group consisting of poly-N-vinyl-carbazole, polyacenaphthylene, poly-9(4-pentenyl) carbazole, poly-9-(5-hexyl)carbazole, poly-3-aminocarbazole, brominated poly-N-vinyl carbazole, copolymers of N-vinylcarbazole and methylacrylate, poly-9-vinylanthracene, poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene, said top layer being substantially visible ray transmissive and substantially non-light sensitive in the visible range in the absence of a sensitizer; the sensitizer for said top layer consisting essentially of vitreous selenium, selenium/tellurium, selenium/arsenic or phthalocyanine layer b.
Claim 30
Dependent Claim
151 words
An electrophotographic plate for producing an electrostatic latent image on the top layer thereof which comprises from the bottom up: a. a conductive substrate; b. a layer of vitreous selenium, a vitreous selenium/tellurium alloy, a vitreous selenium/arsenic alloy or phthalocyanine having a thickness of from 0.05 to 20 microns; c. a top layer comprising a member selected from the group consisting of poly-N-vinyl-carbazole, polyacenaphthylene, poly-9(4-pentenyl) carbazole, poly-9-(5-hexyl)carbazole, poly-3-aminocarbazole, brominated poly-N-vinyl carbazole, copolymers of N-vinylcarbazole and methylacrylate, poly-9-vinylanthracene, poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene, said top layer being substantially visible ray transmissive and substantially non-light sensitive in the visible range in the absence of a sensitizer; the sensitizer for said top layer consisting essentially of vitreous selenium, selenium/tellurium, selenium/arsenic or phthalocyanine layer b.
Claim 31
Dependent Claim
146 words
An electrophotographic plate for producing an electrostatic latent image on the top layer thereof which comprises from the bottom up: a. a conductive substrate; b. a layer of vitreous selenium, a vitreous selenium/tellurium alloy or phthalocyanine having a thickness of from 0.05 to 20 microns; c. a top layer comprising a member selected from the group consisting of poly-N-vinyl-carbazole, polyacenaphthylene, poly-9(4-pentenyl) carbazole, poly-9-(5-hexyl)carbazole, poly-3-aminocarbazole, brominated poly-N-vinyl carbazole, copolymers of N-vinylcarbazole and methylacrylate, poly-9-vinylanthracene, poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene, said top layer being substantially visible ray transmissive and substantially non-light sensitive in the visible range in the absence of a sensitizer; the sensitizer for said top layer consisting essentially of vitreous selenium, selenium/tellurium or phthalocyanine layer b.
Claim 32
Dependent Claim
146 words
An electrophotographic plate for producing an electrostatic latent image on the top layer thereof which comprises from the bottom up: a. a conductive substrate; b. a layer of vitreous selenium, a vitreous selenium/tellurium alloy or phthalocyanine having a thickness of from 0.05 to 20 microns; c. a top layer comprising a member selected from the group consisting of poly-N-vinyl-carbazole, polyacenaphthylene, poly-9(4-pentenyl) carbazole, poly-9-(5-hexyl)carbazole, poly-3-aminocarbazole, brominated poly-N-vinyl carbazole, copolymers of N-vinylcarbazole and methylacrylate, poly-9-vinylanthracene, poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene, said top layer being substantially visible ray transmissive and substantially non-light sensitive in the visible range in the absence of a sensitizer; the sensitizer for said top layer consisting essentially of vitreous selenium, selenium/tellurium or phthalocyanine layer b.
Claim 33
Dependent Claim
149 words
An electrophotographic plate for producing an electrostatic latent image on the top layer thereof which comprises from the bottom up: a. a conductive substrate; b. a layer of vitreous selenium, a vitreous selenium/tellurium alloy of a vitreous selenium/arsenic alloy having a thickness of from 0.05 to 20 microns; c. a top layer comprising a member selected from the group consisting of poly-N-vinyl-carbazole, polyacenaphthylene, poly-9(4-pentenyl) carbazole, poly-9-(5-hexyl)carbazole, poly-3-aminocarbazole, brominated poly-N-vinyl carbazole, copolymers of N-vinylcarbazole and methylacrylate, poly-9-vinylanthracene, poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene, said top layer being substantially visible ray transmissive and substantially non-light sensitive in the visible range in the absence of a sensitizer; the sensitizer for said top layer consisting essentially of vitreous selenium, selenium/tellurium or selenium/arsenic layer b.
Claim 34
Dependent Claim
149 words
An electrophotographic plate for producing an electrostatic latent image on the top layer thereof which comprises from the bottom up: a. a conductive substrate; b. a layer of vitreous selenium, a vitreous selenium/tellurium alloy of a vitreous selenium/arsenic alloy having a thickness of from 0.05 to 20 microns; c. a top layer comprising a member selected from the group consisting of poly-N-vinyl-carbazole, polyacenaphthylene, poly-9(4-pentenyl) carbazole, poly-9-(5-hexyl)carbazole, poly-3-aminocarbazole, brominated poly-N-vinyl carbazole, copolymers of N-vinylcarbazole and methylacrylate, poly-9-vinylanthracene, poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene, said top layer being substantially visible ray transmissive and substantially non-light sensitive in the visible range in the absence of a sensitizer; the sensitizer for said top layer consisting essentially of vitreous selenium, selenium/tellurium or selenium/arsenic layer b.
Claim 35
Dependent Claim
144 words
An electrophotographic plate for producing an electrostatic latent image on the top layer thereof which comprises from the bottom up: a. a conductive substrate; b. a layer of vitreous selenium or a vitreous selenium/tellurium alloy having a thickness of from 0.05 to 20 microns; c. a top layer comprising a member selected from the group consisting of poly-N-vinyl-carbazole, polyacenaphthylene, poly-9(4-pentenyl) carbazole, poly-9-(5-hexyl)carbazole, poly-3-aminocarbazole, brominated poly-N-vinyl carbazole, copolymers of N-vinylcarbazole and methylacrylate, poly-9-vinylanthracene, poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene, said top layer being substantially visible ray transmissive and substantially non-light sensitive in the visible range in the absence of a sensitizer; the sensitizer for said top layer consisting essentially of vitreous selenium or selenium/tellurium layer b.
Claim 36
Dependent Claim
144 words
An electrophotographic plate for producing an electrostatic latent image on the top layer thereof which comprises from the bottom up: a. a conductive substrate; b. a layer of vitreous selenium or a vitreous selenium/tellurium alloy having a thickness of from 0.05 to 20 microns; c. a top layer comprising a member selected from the group consisting of poly-N-vinyl-carbazole, polyacenaphthylene, poly-9(4-pentenyl) carbazole, poly-9-(5-hexyl)carbazole, poly-3-aminocarbazole, brominated poly-N-vinyl carbazole, copolymers of N-vinylcarbazole and methylacrylate, poly-9-vinylanthracene, poly-1-vinylpyrene, polymethylene pyrene, N-substituted polymeric acrylic acid amides of pyrene, pyrene, tetraphene, 1-acetylpyrene, 2,3-benzochrysene, 6,7-benzopyrene, 1-bromopyrene, 1-ethylpyrene, 1-methylpyrene, perylene, 2-phenylindole, tetracene, picene, 1,3,6,8-tetraphenylpyrene, chrysene, fluorene, fluorenone, phenanthrene, triphenylene, 1,2,5,6-dibenzanthracene, 1,2,3,4-dibenzanthracene, 2,3-benzopyrene, anthraquinone, dibenzothiophene, and naphthalene, said top layer being substantially visible ray transmissive and substantially non-light sensitive in the visible range in the absence of a sensitizer; the sensitizer for said top layer consisting essentially of vitreous selenium or selenium/tellurium layer b.
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) | 1984-08-03 | 1985-02-02 | 1985-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-03 | 1989-02-02 | 1989-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-03 | 1993-02-02 | 1993-08-04 | $7700.00 | Window Closed / Lapsed |