WO2006132996A3 - Photoconductor with ceramer overcoat - Google Patents
Photoconductor with ceramer overcoat Download PDFInfo
- Publication number
- WO2006132996A3 WO2006132996A3 PCT/US2006/021526 US2006021526W WO2006132996A3 WO 2006132996 A3 WO2006132996 A3 WO 2006132996A3 US 2006021526 W US2006021526 W US 2006021526W WO 2006132996 A3 WO2006132996 A3 WO 2006132996A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drum
- overcoat
- polyurethane
- silsesquioxane
- silica
- Prior art date
Links
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
- G03G5/14—Inert intermediate or cover layers for charge-receiving layers
- G03G5/147—Cover layers
- G03G5/14708—Cover layers comprising organic material
- G03G5/14713—Macromolecular material
- G03G5/14747—Macromolecular material obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- G03G5/14773—Polycondensates comprising silicon atoms in the main chain
-
- 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
- G03G5/147—Cover layers
- G03G5/14708—Cover layers comprising organic material
- G03G5/14713—Macromolecular material
- G03G5/14747—Macromolecular material obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- G03G5/14769—Other polycondensates comprising nitrogen atoms with or without oxygen atoms in the main chain
Abstract
A polyurethane-silica hybrid, or polyurethane-silica/silsesquioxane hybrid overcoat improves the life of the photoconductor drum without significantly altering the electrophotographic properties of the PC drum. Wear can be caused by a variety of factors, which include contact with the cleaner blade, paper, or intermediate transfer member or by erosion or scratching from toner components. The combination of hard and soft segments allows for a tough, wear resistant material with the added flexibility to prevent erosion from toner particles that are swept along the surface of the drum by the cleaner blade. A benzophenone ultraviolet absorber chemically linked to the silsesquioxane appears to inhibit room light fatigue and improve the electrostatic cycling of the PC drum. The overcoat also inhibits crazing.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/144,925 US7358017B2 (en) | 2005-06-03 | 2005-06-03 | Photoconductor with ceramer overcoat |
US11/144,925 | 2005-06-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006132996A2 WO2006132996A2 (en) | 2006-12-14 |
WO2006132996A3 true WO2006132996A3 (en) | 2007-03-22 |
Family
ID=37494513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2006/021526 WO2006132996A2 (en) | 2005-06-03 | 2006-06-02 | Photoconductor with ceramer overcoat |
Country Status (2)
Country | Link |
---|---|
US (1) | US7358017B2 (en) |
WO (1) | WO2006132996A2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8940466B2 (en) | 2012-12-31 | 2015-01-27 | Lexmark International, Inc. | Photo conductor overcoat comprising radical polymerizable charge transport molecules and hexa-functional urethane acrylates |
US8802339B2 (en) | 2012-12-31 | 2014-08-12 | Lexmark International, Inc. | Crosslinkable urethane acrylate charge transport molecules for overcoat |
US8951703B2 (en) | 2012-12-31 | 2015-02-10 | Lexmark International, Inc. | Wear resistant urethane hexaacrylate materials for photoconductor overcoats |
US20150185640A1 (en) * | 2013-03-15 | 2015-07-02 | Lexmark International, Inc. | Overcoat Formulation for Long-Life Electrophotographic Photoconductors and Method for Making the Same |
US9360822B2 (en) | 2013-12-13 | 2016-06-07 | Lexmark International, Inc. | Photoconductor overcoat having radical polymerizable charge transport molecules containing two ethyl acrylate functional groups and urethane acrylate resins containing six radical polymerizable functional groups |
US9256143B2 (en) | 2013-12-31 | 2016-02-09 | Lexmark International, Inc. | Photoconductor overcoat having tetrafunctional radical polymerizable charge transport molecule |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4278804A (en) * | 1980-05-30 | 1981-07-14 | General Electric Company | Ultraviolet light absorbing agents and compositions and articles containing same |
US4917980A (en) * | 1988-12-22 | 1990-04-17 | Xerox Corporation | Photoresponsive imaging members with hole transporting polysilylene ceramers |
US5968656A (en) * | 1997-04-25 | 1999-10-19 | Eastman Kodak Company | Electrostatographic intermediate transfer member having a ceramer-containing surface layer |
US6299799B1 (en) * | 1999-05-27 | 2001-10-09 | 3M Innovative Properties Company | Ceramer compositions and antistatic abrasion resistant ceramers made therefrom |
US20030044407A1 (en) * | 1999-02-22 | 2003-03-06 | Chang Esther H. | Simplified and improved method for preparing an antibody or an antibody fragment targeted immunoliposome or polyplex for systemic administration of a therapeutic or diagnostic agent |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3944520A (en) | 1974-04-18 | 1976-03-16 | Andrianov Kuzma A | Cyclolinear polyorganosiloxanes and method for preparing same |
US4027073A (en) * | 1974-06-25 | 1977-05-31 | Dow Corning Corporation | Pigment-free coating compositions |
US4443579A (en) | 1981-12-08 | 1984-04-17 | General Electric Company | Silicone resin coating composition adapted for primerless adhesion to plastic and process for making same |
US4439509A (en) * | 1982-06-01 | 1984-03-27 | Xerox Corporation | Process for preparing overcoated electrophotographic imaging members |
US4477499A (en) * | 1982-09-07 | 1984-10-16 | General Electric Company | Thermoformable silicone resin coating composition and dual component coating system for polycarbonate |
US4559271A (en) * | 1982-09-07 | 1985-12-17 | General Electric Company | Thermoformable silicone resin coating composition and dual component coating system for polycarbonate |
US4606934A (en) * | 1984-09-04 | 1986-08-19 | Xerox Corporation | Process for preparing overcoated electrophotographic imaging members |
US4595602A (en) * | 1984-09-04 | 1986-06-17 | Xerox Corporation | Process for preparing overcoated electrophotographic imaging members |
US4565760A (en) * | 1984-11-13 | 1986-01-21 | Xerox Corporation | Protective overcoatings for photoresponsive imaging members |
JP2599743B2 (en) | 1988-02-05 | 1997-04-16 | 日本原子力研究所 | Electrophotographic photoreceptor |
US4923775A (en) * | 1988-12-23 | 1990-05-08 | Xerox Corporation | Photoreceptor overcoated with a polysiloxane |
JP2762092B2 (en) | 1989-01-17 | 1998-06-04 | 旭電化工業株式会社 | Polymer material composition with improved light fastness |
DE19539290A1 (en) | 1995-10-23 | 1997-04-24 | Bayer Ag | Process for the preparation of poly (diorganosiloxane) -polycarbonate block copolymers |
US5731117A (en) * | 1995-11-06 | 1998-03-24 | Eastman Kodak Company | Overcoated charge transporting elements and glassy solid electrolytes |
US5874018A (en) * | 1996-06-20 | 1999-02-23 | Eastman Kodak Company | Overcoated charge transporting elements and glassy solid electrolytes |
US5910272A (en) | 1997-03-19 | 1999-06-08 | Dow Corning Asia, Ltd. | Process for the preparation of an electrically conductive coating material |
US6074756A (en) | 1997-04-25 | 2000-06-13 | Eastman Kodak Company | Transfer member for electrostatography |
US5882830A (en) | 1998-04-30 | 1999-03-16 | Eastman Kodak Company | Photoconductive elements having multilayer protective overcoats |
US6489069B1 (en) * | 1999-02-15 | 2002-12-03 | Konica Corporation | Electrophotographic image carrier and image forming apparatus, image forming method and processing cartridge using it |
US6194106B1 (en) * | 1999-11-30 | 2001-02-27 | Minnesota Mining And Manufacturing Company | Temporary image receptor and means for chemical modification of release surfaces on a temporary image receptor |
KR100453046B1 (en) | 2002-04-16 | 2004-10-15 | 삼성전자주식회사 | Composition for overcoat layer of organic electrophotographic photoreceptor and organic photoreceptor employing the overcoat layer formed thereform |
KR100490402B1 (en) | 2002-04-16 | 2005-05-17 | 삼성전자주식회사 | Composition for overcoat layer of organic electrophotographic photoreceptor and organic photoreceptor employing the overcoat layer formed thereform |
DE60317856T2 (en) * | 2002-07-08 | 2008-11-27 | Eastman Kodak Co. | Organic charge transport polymers with charge transport residues and silane groups and silsesquioxane compositions prepared therefrom |
KR100532845B1 (en) * | 2002-10-02 | 2005-12-05 | 삼성전자주식회사 | Multi-layered electro photographic positive charged organic photoconductor and manufacturing method thereof |
US7238456B2 (en) * | 2004-11-30 | 2007-07-03 | Xerox Corporation | Silicon-containing layers for electrophotographic photoreceptors and methods for making the same |
-
2005
- 2005-06-03 US US11/144,925 patent/US7358017B2/en active Active
-
2006
- 2006-06-02 WO PCT/US2006/021526 patent/WO2006132996A2/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4278804A (en) * | 1980-05-30 | 1981-07-14 | General Electric Company | Ultraviolet light absorbing agents and compositions and articles containing same |
US4917980A (en) * | 1988-12-22 | 1990-04-17 | Xerox Corporation | Photoresponsive imaging members with hole transporting polysilylene ceramers |
US5968656A (en) * | 1997-04-25 | 1999-10-19 | Eastman Kodak Company | Electrostatographic intermediate transfer member having a ceramer-containing surface layer |
US20030044407A1 (en) * | 1999-02-22 | 2003-03-06 | Chang Esther H. | Simplified and improved method for preparing an antibody or an antibody fragment targeted immunoliposome or polyplex for systemic administration of a therapeutic or diagnostic agent |
US6299799B1 (en) * | 1999-05-27 | 2001-10-09 | 3M Innovative Properties Company | Ceramer compositions and antistatic abrasion resistant ceramers made therefrom |
Also Published As
Publication number | Publication date |
---|---|
US20060275684A1 (en) | 2006-12-07 |
WO2006132996A2 (en) | 2006-12-14 |
US7358017B2 (en) | 2008-04-15 |
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