DE1060259B - Verfahren zur Herstellung von photoleitfaehigen Schichten fuer elektrophotographische Verfahren - Google Patents
Verfahren zur Herstellung von photoleitfaehigen Schichten fuer elektrophotographische VerfahrenInfo
- Publication number
- DE1060259B DE1060259B DEA26007A DEA0026007A DE1060259B DE 1060259 B DE1060259 B DE 1060259B DE A26007 A DEA26007 A DE A26007A DE A0026007 A DEA0026007 A DE A0026007A DE 1060259 B DE1060259 B DE 1060259B
- Authority
- DE
- Germany
- Prior art keywords
- layer
- photoconductive
- electrophotographic processes
- layers
- photoconductive layers
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000000126 substance Substances 0.000 claims description 11
- 239000011230 binding agent Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims 2
- 238000009833 condensation Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- XJKSTNDFUHDPQJ-UHFFFAOYSA-N 1,4-diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=C(C=2C=CC=CC=2)C=C1 XJKSTNDFUHDPQJ-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 125000002252 acyl group Chemical group 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- CJNMHWJZCGSVQG-UHFFFAOYSA-N 1,2-bis(4-bromophenyl)benzene Chemical group C1=CC(Br)=CC=C1C1=CC=CC=C1C1=CC=C(Br)C=C1 CJNMHWJZCGSVQG-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229930184652 p-Terphenyl Natural products 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- -1 polysiloxanes Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
- G03G5/0624—Heterocyclic compounds containing one hetero ring
- G03G5/0635—Heterocyclic compounds containing one hetero ring being six-membered
- G03G5/0637—Heterocyclic compounds containing one hetero ring being six-membered containing one hetero atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D221/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
- C07D221/02—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 condensed with carbocyclic rings or ring systems
- C07D221/04—Ortho- or peri-condensed ring systems
- C07D221/06—Ring systems of three rings
- C07D221/10—Aza-phenanthrenes
-
- 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
- G03G5/0601—Acyclic or carbocyclic compounds
- G03G5/0605—Carbocyclic compounds
-
- 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
- G03G5/0601—Acyclic or carbocyclic compounds
- G03G5/0609—Acyclic or carbocyclic compounds containing oxygen
-
- 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
- G03G5/0601—Acyclic or carbocyclic compounds
- G03G5/0612—Acyclic or carbocyclic compounds containing nitrogen
-
- 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
- G03G5/0601—Acyclic or carbocyclic compounds
- G03G5/0618—Acyclic or carbocyclic compounds containing oxygen and nitrogen
-
- 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
- G03G5/0624—Heterocyclic compounds containing one hetero ring
- G03G5/0635—Heterocyclic compounds containing one hetero ring being six-membered
- G03G5/0638—Heterocyclic compounds containing one hetero ring being six-membered containing two hetero atoms
-
- 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
- G03G5/0664—Dyes
- G03G5/0666—Dyes containing a methine or polymethine group
- G03G5/0668—Dyes containing a methine or polymethine group containing only one methine or polymethine group
- G03G5/067—Dyes containing a methine or polymethine group containing only one methine or polymethine group containing hetero 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
- G03G5/0664—Dyes
- G03G5/0666—Dyes containing a methine or polymethine group
- G03G5/0672—Dyes containing a methine or polymethine group containing two or more methine or polymethine groups
- G03G5/0674—Dyes containing a methine or polymethine group containing two or more methine or polymethine groups containing hetero rings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Photoreceptors In Electrophotography (AREA)
Description
- Verfahren zur Herstellung von photoleitfähigen Schichten für elektrophotographische Verfahren Zur Herstellung von photoleitfähigen Schichten für elektrophotographische Verfahren ist es bekannt, gewisse anorganische oder organische lichtleitfähige Verbindungen zu verwenden. Solche Verbindungen sind beispielsweise Schwefel und. Selen, ferner die Oxyde, Sulfide und Selenide von. Zink, Cadmium, Quecksilber, Antimon, Wismut, Blei, weiterhin Anthracen und Anthrachinon. Diese Substanzen werden auf einer elektrophotographischen Platte, insbesondere aus Metallen oder einem anderen schichtbildenden Stoff, beispielsweise Papier, oder einem filmbildenden Kunststoff aufgetragen. Gegebenenfalls kann der photoleitfähige Stoff in einem schichtbildenden Bindemittel untergebracht werden, wobei der Trägerstoff in Wasser dispergiert werden kann-Es wurde nun gefunden, daß man sehr geeignete photoleitfähige Schichten erhält, wenn man als photoleitfähige Verbindungen mehrkernige cyclische Kohlenwasserstoffe verwendet, deren Kerne in einfacher Bindung miteinander verknüpft sind, insbesondere p-Terphenyl bzw. p-Diphenylbenzol, Quaterphenyl, Sexiphenyl, sowie deren Substitutionsprodukte mit Halogenatomen, Cyan-, Nitro-, Acyl-, substituierten Acyl-, Alkyl-, Oxalkyl- und Oxarylgruppen in 4-, 4,4"- bzw. 4,2',4"-Stelllung, beispielsweise
Damit die organischen Verbindungen für das elektrophotographische Verfahren geeignet sind, müssen diese außer der Photoleitfähigkeit die Eigenschaft besitzen, in den Schichten in kristalliner Form dispergierbar zu sein. - Zur Herstellung der photoleitfähigen Schicht kann man wie folgt vorgehen: Man verwendet ein organisches Lösungsmittel, das sowohl den photoleitfähigen Stoff als auch den Schichtbildner löst. Dieser Lösung setzt man ein anderes organisches Lösungsmittel zu, in dem sich zwar der Schichtbildner, aber nicht die photoleitfähige Substanz löst. Dadurch wird die photoleitfähige Verbindung in besonders feiner Verteilung ausgeschieden, so daß man Schlichten mit besonders glatter Oberfläche erhält.
- Besonders zweckmäßig ist es, ungefärbte Verbindungen zu verwenden, da in der Praxis besonders weiße Schichten bevorzugt werden.
- Als Bindemittel für die photoleitfähigen Substanzen können die verschiedensten filmbildenden Kunststoffe, beispielsweise Cellulose, Cellutoseester, Celluloseäther, Polyvinylchlorid, Polyurethane, Polyester, Polyamide, Polycarbonate auf der Grundlage von Di-(monooxyaryl)-alkanen, insbesondere von 4,4'-Di-(monooxyaryl) - alkanen nach Patentanmeldungen F 13040 IV c / 39c und F 17166 IV c / 39c verwendet werden.
- Die genannten Stoffe können auch zur Herstellung des Schichtträgers verwendet werden.
- Die lichtleitfähigen Schichten können auch nach dem Verfahren der Patentanmeldung A25565 IVa/ 57b aus wäßrigen Dispersionen hergestellt worden.
- Als besonders geeignete Bindemittel seien ferner Silicornharze, insbesondere solche auf Basis von Phenyl- und Methylpolysiloxanen angeführt, wie sie z. B. aus den deutschen Patentschriften 853 351 und 868 975 bekannt sind.
- Beispiel 1 64g Siliconharz Bayer P 150, 60%ig in Toluol, 97 ccm Toluol, 20g p-Diphenylbenzol werden gemischt und in einer Kugelmühle einige Stunden vermahlen. Diese Mischung wird dann auf eine Unterlage, z. B. Papier, vergossen und getrocknet. Die Schichten sind vornehmlich für UV-Licht empfindlich. Beispiel 2 100 ccm Celluloseacetat, 2,5%ig in Aceton, 20g 4,4'-Dicyandiphenyl, 50 ccm Aceton werden unter starkem Rühren auf etwa 50° C erhitzt. Das 4,4'-Dicyandiphenyl geht dabei weitgehend in Lösung. Ohne abzukühlen, wird diese Harzlösung auf eine geeignete Unterlage vergossen und langsam getrocknet. Das 4,4'-Dicyandiphenyl kristallisiert bei der Trocknung in feinen Kristallen aus der Harzlösung aus. Die so hergestellten Schichten sind glänzend und fast durchsichtig.
- Die Verarbeitung erfolgt in der üblichen Weise. Die Empfindlichkeit dieser Schicht liegt im sichtbaren Bereich.
- Beispiel 3 In 120 ccm einer 2%igen Lösung von Polyacrylnitril in Dimethylformamid rührt man 30g 4,4"-Dibromterphenyl und schüttelt einige Stunden auf der Kugelmühle. Ein Teil des 4,4"-Dibromterphenyls geht bei diesem Vorgang in Lösung, der Resit liegt in sehr feiner Kristallform in der Harzlösung vor. Die Mischung wird auf eine geeignete Unterlage vergossen und getrocknet. Die Verarbeitung der Schicht erfolgt in der für das sogenannte »Elektrofax«-Verfahren üblichen Weise.
Claims (4)
- PATENTANSPRÜCHE: 1. Verfahren zur Herstellung von photoleitfähigen Schichten für elektrophotographische Verfahren, dadurch gekennzeichnet, daß man als photoleitfähige Substanzen (gegebenenfalls substituierte) mehrkernige cyclische Kohlenwasserstoffe verwendet, deren Kerne in einfacher Bindung. miteinander verknüpft-sind.
- 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die organische Substanz in einem Lösungsmittel gelöst wird, in. dem auch der schichtbildende Stoff löslich ist und dann durch ein anderes organisches Lösungsmittel ausgefällt wird, in welchem der schichtbildende Stoff gelöst bleibt.
- 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Bindemittel für lichtleitfähige Substanzen schichtbildende Kunststoffe verwendet werden, die in organischen Lösungsmitteln löslich sind und diese aus wäßrigen Dispersionen oder Emulsionen auf geeignete Unterlagen vergossen werden.
- 4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß nach Trocknung der vergossenen Dispersionen oder Emulsionen durch Hitzebehandlung eine Nachkondensation oder Nachpalymerisation der Kunststoffe erfolgt.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE562336D BE562336A (de) | 1956-11-14 | ||
| DEA26007A DE1060259B (de) | 1956-11-14 | 1956-11-14 | Verfahren zur Herstellung von photoleitfaehigen Schichten fuer elektrophotographische Verfahren |
| CH5256757A CH368379A (de) | 1956-11-14 | 1957-11-12 | Verfahren zur Herstellung von flächenförmigen Materialien mit photoleitfähigen Schichten für elektrophotographische Verfahren |
| US234926A US3215528A (en) | 1956-11-14 | 1962-11-02 | Photoconductive layers for electrophotography |
| US234928A US3253914A (en) | 1956-11-14 | 1962-11-02 | Photoconductive layers and process for electrophotography |
| US234927A US3252794A (en) | 1956-11-14 | 1962-11-02 | Photoconductive layers and process for electrophotography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA26007A DE1060259B (de) | 1956-11-14 | 1956-11-14 | Verfahren zur Herstellung von photoleitfaehigen Schichten fuer elektrophotographische Verfahren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1060259B true DE1060259B (de) | 1959-06-25 |
Family
ID=6926039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA26007A Pending DE1060259B (de) | 1956-11-14 | 1956-11-14 | Verfahren zur Herstellung von photoleitfaehigen Schichten fuer elektrophotographische Verfahren |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US3252794A (de) |
| BE (1) | BE562336A (de) |
| CH (1) | CH368379A (de) |
| DE (1) | DE1060259B (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3265497A (en) * | 1961-04-29 | 1966-08-09 | Renker Belipa G M B H Fa | Electrophotographic material |
| DE1497182B1 (de) * | 1964-05-30 | 1970-08-20 | Matsushita Electric Ind Co Ltd | Elektrophotographisches Aufzeichnungsmaterial |
| DE2822762A1 (de) * | 1977-05-25 | 1978-12-07 | Eastman Kodak Co | Photoleitfaehiges aufzeichnungsmaterial |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE589373A (de) * | 1959-04-08 | |||
| NL250331A (de) * | 1959-04-09 | |||
| NL250330A (de) * | 1959-04-09 | |||
| NL131027C (de) * | 1959-06-11 | |||
| NL254115A (de) * | 1959-07-22 | |||
| NL266999A (de) * | 1959-08-04 | |||
| NL258384A (de) * | 1959-11-26 | |||
| BE585450A (de) * | 1959-12-09 | |||
| BE625683A (de) * | 1960-02-19 | |||
| BE585507A (de) * | 1960-03-31 | |||
| US3148982A (en) * | 1960-04-11 | 1964-09-15 | Gevaert Photo Prod Nv | Electrophotographic process utilizing organic photoconductors |
| NL269304A (de) * | 1960-09-17 | |||
| DE1216690B (de) * | 1960-10-03 | 1966-05-12 | Renker Belipa G M B H | Photoleitfaehige Schicht fuer ein elektrophotographisches Aufzeichnungsmaterial |
| US3287114A (en) * | 1961-07-24 | 1966-11-22 | Azoplate Corp | Process for the sensitization of photoconductors |
| US3240597A (en) * | 1961-08-21 | 1966-03-15 | Eastman Kodak Co | Photoconducting polymers for preparing electrophotographic materials |
| BE626528A (de) * | 1961-10-23 | |||
| BE626527A (de) * | 1961-12-29 | |||
| US3153591A (en) * | 1962-06-25 | 1964-10-20 | Minnesota Mining & Mfg | Copysheets and their preparation |
| US3331687A (en) * | 1962-09-24 | 1967-07-18 | Render Belipa G M B H Fa | Electrophotographic material |
| US3485621A (en) * | 1966-04-04 | 1969-12-23 | Xerox Corp | Recording by particle orientation |
| US3546085A (en) * | 1967-01-30 | 1970-12-08 | Xerox Corp | Photoelectrophoretic imaging process and suspension |
| US3909261A (en) * | 1970-09-25 | 1975-09-30 | Xerox Corp | Xerographic imaging member having photoconductive material in interlocking continuous paths |
| US3787208A (en) * | 1970-09-25 | 1974-01-22 | Xerox Corp | Xerographic imaging member having photoconductive material in inter-locking continuous paths |
| JPS4949506B2 (de) * | 1972-01-24 | 1974-12-27 | ||
| US3989520A (en) * | 1972-09-21 | 1976-11-02 | Hoechst Aktiengesellschaft | Electrophotographic dual layer recording material |
| US3871883A (en) * | 1972-12-28 | 1975-03-18 | Ricoh Kk | Electrophotographic photoconductive layer comprising an organic photoconductor and a dicyanomethylene-indenothiophene sensitizer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2759939A (en) * | 1956-08-21 | Seriesand the preparation | ||
| US2138381A (en) * | 1935-10-12 | 1938-11-29 | Gen Aniline Works Inc | Compounds of the anthrapyridine and anthrapyrimidine series |
| US2123245A (en) * | 1936-02-13 | 1938-07-12 | Gen Aniline Works Inc | Naphthene-hydrocarbon-aminoanthrapyrimidines |
| US2434019A (en) * | 1942-03-10 | 1948-01-06 | Joseph L Switzer | Color separation with fluorescent materials |
| FR1008598A (fr) * | 1948-04-30 | 1952-05-19 | Onera (Off Nat Aerospatiale) | Procédé pour l'enregistrement graphique ou l'inscription dirccte en matériaux pour la mise en oeuvre de ce procédé |
| US2663636A (en) * | 1949-05-25 | 1953-12-22 | Haloid Co | Electrophotographic plate and method of producing same |
| US3000735A (en) * | 1956-06-11 | 1961-09-19 | Keller Daniel Franklin | Method and apparatus for the reproduction of images |
-
0
- BE BE562336D patent/BE562336A/xx unknown
-
1956
- 1956-11-14 DE DEA26007A patent/DE1060259B/de active Pending
-
1957
- 1957-11-12 CH CH5256757A patent/CH368379A/de unknown
-
1962
- 1962-11-02 US US234927A patent/US3252794A/en not_active Expired - Lifetime
- 1962-11-02 US US234926A patent/US3215528A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3265497A (en) * | 1961-04-29 | 1966-08-09 | Renker Belipa G M B H Fa | Electrophotographic material |
| DE1497182B1 (de) * | 1964-05-30 | 1970-08-20 | Matsushita Electric Ind Co Ltd | Elektrophotographisches Aufzeichnungsmaterial |
| DE2822762A1 (de) * | 1977-05-25 | 1978-12-07 | Eastman Kodak Co | Photoleitfaehiges aufzeichnungsmaterial |
Also Published As
| Publication number | Publication date |
|---|---|
| US3215528A (en) | 1965-11-02 |
| CH368379A (de) | 1963-03-31 |
| US3252794A (en) | 1966-05-24 |
| BE562336A (de) |
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