ES357985A1 - Photoconductive element exhibiting photoconductive dichroism and process of using same - Google Patents
Photoconductive element exhibiting photoconductive dichroism and process of using sameInfo
- Publication number
- ES357985A1 ES357985A1 ES357985A ES357985A ES357985A1 ES 357985 A1 ES357985 A1 ES 357985A1 ES 357985 A ES357985 A ES 357985A ES 357985 A ES357985 A ES 357985A ES 357985 A1 ES357985 A1 ES 357985A1
- Authority
- ES
- Spain
- Prior art keywords
- dichroic
- layer
- photoconductive
- carbazole
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/225—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 using contact-printing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/043—Photoconductive layers characterised by having two or more layers or characterised by their composite structure
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/043—Photoconductive layers characterised by having two or more layers or characterised by their composite structure
- G03G5/047—Photoconductive layers characterised by having two or more layers or characterised by their composite structure characterised by the charge-generation layers or charge transport layers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
- G03G5/0622—Heterocyclic compounds
- G03G5/0644—Heterocyclic compounds containing two or more hetero rings
- G03G5/0646—Heterocyclic compounds containing two or more hetero rings in the same ring system
- G03G5/065—Heterocyclic compounds containing two or more hetero rings in the same ring system containing three relevant rings
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
- G03G5/07—Polymeric photoconductive materials
- G03G5/071—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
- G03G5/072—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising pending monoamine groups
- G03G5/073—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising pending monoamine groups comprising pending carbazole groups
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/09—Sensitisors or activators, e.g. dyestuffs
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/14—Inert intermediate or cover layers for charge-receiving layers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Photoreceptors In Electrophotography (AREA)
- Light Receiving Elements (AREA)
- Laminated Bodies (AREA)
Abstract
A photoconductive element, suitable for use in electrophotographic reflex copying comprises a dichroic material having its axes of maximum absorption and transmission oriented in a unidirection, the element exhibiting dichroic photoconductivity and becoming conductive in those areas exposed to light having an electric vector parallel to the absorption axis. The photoconductive element has the advantage that it transmits all light polarized normal to its absorption axis and therefore does not become conductive and efficiently illuminates the document to be copied. The element may be composed of a dichroic photoconductor alone or in association with another material, or a photoconductor together with an oriented dichroic activator. In either case the dichroic material must be oriented so that it acts as a single dichroic unit.. This may be accomplished by (a) dispersing the dichroic material in a sheet of polyvinyl alcohol or polyvinyl formal and stretching it (b) attaching the dichroic molecules chemically to a material that has a high degree of orientation (c) coating the material on a sheet having a preferred orientation or (d) coating them on a surface by unidirectional rubbing followed by stretching and extruding. Transparencies or translucencies which have been backed with depolarizing and reflecting elements can also be copied using this reflex technique. In the embodiments bis (dialkylaminoarylideneamino)benzo bisthiazoles are exemplified as dichroic photoconductors. In one embodiment, an aluminized cellulose triacetate sheet has a layer of bisthiazole formed thereon by rubbing on a dry powder in a unidirection and is overcoated with a layer of poly N-vinyl carbazole. In another embodiment, the layer of poly N-vinyl carbazole is adjacent the aluminized cellulose triacetate sheet and the bisthiazole is covered with cellulose acetate. In the embodiment exemplifying a dichroic activator, a polymer layer is stained with iodine to cause the polymer to exhibit dichroism and activate a photoconductive layer when applied thereto. In another embodiment a layer of an oriented polymeric photoconductor e.g. a terpolymer of N-pentenyl carbazole, N-hexenyl carbazole and pentene-1 is stained with 2,4,7- tinitrofluorenone. Polycarbonate or glass coated with tin oxide. A1 or Cu may be used as a support. The support may serve to polarize the light incident on the photoconductive layer so that its electric vector is in the proper direction for it to pass through the layer. A semi-transparent mirror which may be the metal layer on the support, may be used to reflect the depolarized light back into the layer. In one embodiment, an electrophotographic plate is built up by rubbing a bisthiazole in a unidirection on a film of poly-N-vinylcarbazole activated with tetrachlorophthalic anhydride and carried on a temporary polyethylene terephthalate support, coating the carbazole film with an aqueous solution of copoly(methylvinyl ether-maleic anhydride) and a quaternary ammonium salt, and then laminating the product with glass coated with polyvinylidene chloride. The terephthalate support is removed after lamination.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66869767A | 1967-09-18 | 1967-09-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES357985A1 true ES357985A1 (en) | 1970-04-01 |
Family
ID=24683382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES357985A Expired ES357985A1 (en) | 1967-09-18 | 1968-09-10 | Photoconductive element exhibiting photoconductive dichroism and process of using same |
Country Status (9)
Country | Link |
---|---|
US (1) | US3598582A (en) |
JP (1) | JPS4926907B1 (en) |
BE (1) | BE720358A (en) |
CH (1) | CH496264A (en) |
ES (1) | ES357985A1 (en) |
FR (1) | FR1577855A (en) |
GB (1) | GB1244765A (en) |
NL (1) | NL158624B (en) |
SE (1) | SE339911B (en) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3881923A (en) * | 1970-06-15 | 1975-05-06 | Minolta Camera Kk | Electrophotographic sensitive plate |
US3870516A (en) * | 1970-12-01 | 1975-03-11 | Xerox Corp | Method of imaging photoconductor in change transport binder |
US3928034A (en) * | 1970-12-01 | 1975-12-23 | Xerox Corp | Electron transport layer over an inorganic photoconductive layer |
US3904407A (en) * | 1970-12-01 | 1975-09-09 | Xerox Corp | Xerographic plate containing photoinjecting perylene pigments |
US3877935A (en) * | 1970-12-01 | 1975-04-15 | Xerox Corp | Novel xerographic plate containing photoinjecting polynuclear quinone pigments |
US3899329A (en) * | 1970-12-01 | 1975-08-12 | Xerox Corp | Mixture of photoconductors in an active matrix |
US4282298A (en) * | 1970-12-01 | 1981-08-04 | Xerox Corporation | Layered imaging member and method |
US3879200A (en) * | 1970-12-01 | 1975-04-22 | Xerox Corp | Novel xerographic plate containing photoinjecting bis-benzimidazole pigments |
US3879199A (en) * | 1971-12-03 | 1975-04-22 | Xerox Corp | Surface treatment of arsenic-selenium photoconductors |
US4026704A (en) * | 1971-12-08 | 1977-05-31 | Hoechst Aktiengesellschaft | Electrophotographic recording material |
US3791826A (en) * | 1972-01-24 | 1974-02-12 | Ibm | Electrophotographic plate |
DE2237539C3 (en) * | 1972-07-31 | 1981-05-21 | Hoechst Ag, 6000 Frankfurt | Electrophotographic recording material |
DE2242627C2 (en) * | 1972-08-30 | 1982-06-09 | Hoechst Ag, 6000 Frankfurt | Electrophotographic recording material |
DE2246254C2 (en) * | 1972-09-21 | 1982-07-01 | Hoechst Ag, 6000 Frankfurt | Electrophotographic recording material |
DE2242595C2 (en) * | 1972-08-30 | 1982-06-09 | Hoechst Ag, 6000 Frankfurt | Electrophotographic recording material |
US4315981A (en) * | 1972-07-31 | 1982-02-16 | Hoechst Aktiengesellschaft | Organic double layer electrophotographic recording material |
US3996049A (en) * | 1972-08-30 | 1976-12-07 | Hoechst Aktiengesellschaft | Dual layer electrophotographic recording material |
US3977870A (en) * | 1972-09-21 | 1976-08-31 | Hoechst Aktiengesellschaft | Dual layer electrophotographic recording material |
US3989520A (en) * | 1972-09-21 | 1976-11-02 | Hoechst Aktiengesellschaft | Electrophotographic dual layer recording material |
US3837851A (en) * | 1973-01-15 | 1974-09-24 | Ibm | Photoconductor overcoated with triarylpyrazoline charge transport layer |
US4097277A (en) * | 1973-01-31 | 1978-06-27 | Canon Kabushiki Kaisha | Photosensitive member having layer of vinyl carbazole polymer containing antimony chalcogen compound of antimony and sulfur |
FR2223731B2 (en) * | 1973-03-30 | 1977-10-21 | Xerox Corp | |
US3912506A (en) * | 1973-05-21 | 1975-10-14 | Eastman Kodak Co | Photoconductive elements containing polymeric binders |
US3884690A (en) * | 1973-09-27 | 1975-05-20 | Xerox Corp | Polyester photoconductors and matrix materials |
DE2356370C2 (en) * | 1973-11-12 | 1983-05-11 | Hoechst Ag, 6230 Frankfurt | Electrophotographic recording material |
US4233384A (en) * | 1979-04-30 | 1980-11-11 | Xerox Corporation | Imaging system using novel charge transport layer |
EP0056313A3 (en) * | 1981-01-10 | 1982-11-03 | PAYNE, John, Michael | Improvements in and relating to electrophotographic copying |
EP1275988A3 (en) * | 1993-09-10 | 2006-03-22 | Nippon Kayaku Kabushiki Kaisha | Polarizing element, and polarizing plate |
JP7140469B2 (en) * | 2016-07-15 | 2022-09-21 | キヤノン株式会社 | Photoelectric conversion device and imaging system |
US10367113B2 (en) * | 2016-07-15 | 2019-07-30 | Canon Kabushiki Kaisha | Photoelectric conversion device, imaging element, and imaging device |
WO2022098917A1 (en) * | 2020-11-04 | 2022-05-12 | Ubiquitous Energy, Inc. | Photoactive compounds for vapor deposited organic photovoltaic devices |
-
1967
- 1967-09-18 US US668697A patent/US3598582A/en not_active Expired - Lifetime
-
1968
- 1968-08-28 FR FR1577855D patent/FR1577855A/fr not_active Expired
- 1968-08-30 GB GB41417/68A patent/GB1244765A/en not_active Expired
- 1968-09-03 BE BE720358D patent/BE720358A/xx unknown
- 1968-09-05 CH CH1335668A patent/CH496264A/en not_active IP Right Cessation
- 1968-09-10 ES ES357985A patent/ES357985A1/en not_active Expired
- 1968-09-11 NL NL6812934.A patent/NL158624B/en unknown
- 1968-09-17 SE SE12539/68A patent/SE339911B/xx unknown
-
1971
- 1971-07-05 JP JP46048897A patent/JPS4926907B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS4926907B1 (en) | 1974-07-12 |
NL158624B (en) | 1978-11-15 |
FR1577855A (en) | 1969-08-08 |
GB1244765A (en) | 1971-09-02 |
DE1797306A1 (en) | 1970-12-17 |
US3598582A (en) | 1971-08-10 |
SE339911B (en) | 1971-10-25 |
CH496264A (en) | 1970-09-15 |
BE720358A (en) | 1969-02-17 |
NL6812934A (en) | 1969-03-20 |
DE1797306B2 (en) | 1975-07-17 |
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