Class / Patent application number | Description | Number of patent applications / Date published |
430580200 | Organosilicon or organogermanium in charge transport layer | 10 |
20080220349 | Photoconductors containing halogenated binders and aminosilanes - A photoconductor containing a supporting substrate; an undercoat layer comprised of a mixture of an aminosilane and a halogenated polymer; a photogenerating layer; and at least one charge transport layer. | 09-11-2008 |
20090053635 | Imaging member - The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an improved electrostatographic imaging member having a charge transport layer that is dual-dopant, wherein operating life improvement is achieved by incorporating a small amount of compatible thermalsetting resin and polyhedral oligomeric silsesquioxane into the layer. Incorporation of these resins have been shown to increase charge transport life. | 02-26-2009 |
20090087761 | Resin composition for electrophotographic photoconductor and electrophotographic photoconductor using the same - The present invention provides a resin composition for an electrophotographic photoconductor having excellent image stability and abrasion resistance which comprises a polycarbonate resin and a polysiloxane group-containing A-B type block copolymer consisting of a polysiloxane group-containing copolymer segment-A formed by a vinyl monomer represented by the general formula (1) and a polysiloxane group-containing monomer and a polymer segment-B formed by a vinyl monomer represented by the general formula (1), wherein the content of said polysiloxane group-containing monomer is 10 to 85% by weight based upon said polysiloxane group-containing A-B type block copolymer, and the content of said polysiloxane group-containing A-B type block copolymer is 0.03 to 3 parts by weight based upon 100 parts by weight of said polycarbonate resin. | 04-02-2009 |
20090162763 | Photoreceptor, image formation method, image forming apparatus and process cartridge - A photoreceptor including an electroconductive substrate and a photosensitive layer located overlying the electroconductive substrate, the photosensitive layer including a cross-linking surface layer including a cross-linked copolymer of a radical polymerizable monomer (I) having at least three functional groups without a charge transport structure and a radical polymerizable monomer (II) having a charge transport structure, and a polysiloxane-acryl block copolymer having a charge transport property. | 06-25-2009 |
20090325089 | POLYMER CONTAINING CHARGE TRANSPORT PHOTOCONDUCTORS - A photoconductor that includes a supporting substrate, a photogenerating layer, and at least one charge transport layer that contains at least one charge transport component, and a polysiloxane/polyetherimide polymer. | 12-31-2009 |
20100119964 | Electrophotographic photoreceptor, image forming method, image forming apparatus, and process cartridge - An electrophotographic photoreceptor including a conductive substrate and a photosensitive layer located overlying the conductive substrate. The photosensitive layer comprises a specific diamine compound. | 05-13-2010 |
20100330476 | POLYFLUORINATED CORE SHELL PHOTOCONDUCTORS - A photoconductor that includes a photogenerating layer and a charge transport layer containing a charge transport component, a fluorinated polymer, and a core shell component, and wherein the core is comprised of a metal oxide and the shell is comprised of silica. | 12-30-2010 |
20110177438 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - A charge transport layer, which is the surface layer of an electrophotographic photosensitive member, contains a charge transporting material, and a polyester resin A having a repeating structural unit including a specific siloxane moiety and at least one of a polyester resin C having a specific structure and a polycarbonate resin D having a specific structure as a binder resin. The content of the siloxane moiety in the polyester resin A is from 5% by mass or more to 30% by mass or less based on the total mass of the polyester resin A. The charge transport layer includes a domain made of the polyester resin A in a matrix made of the charge transporting material and at least one of the polyester resin C and the polycarbonate resin D. | 07-21-2011 |
20150079510 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PRODUCTION METHOD THEREFOR, ELECTROPHOTOGRAPHIC DEVICE, AND PRODUCTION METHOD FOR COPOLYMER POLYARYLATE RESIN - An electrophotographic photoreceptor having a photosensitive layer which includes, as a resin binder, a copolymeric polyarylate resin having structural units of a Chemical Structural Formula 1, a method of producing the photoreceptor, an electrophotographic device including the electrophotographic photoreceptor, and a method of preparing the copolymeric polyarylate resin are provided. The electrophotographic photoreceptor reduces the amount of abrasion at the surface of a photoreceptor drum and lowers frictional resistance from the beginning until the end of printing, and moreover provides good images. | 03-19-2015 |
20180024449 | PHOTORECEPTOR FOR ELECTROPHOTOGRAPHY, METHOD FOR MANUFACTURING THE SAME, AND ELECTROPHOTOGRAPHIC DEVICE | 01-25-2018 |