# US 12,498,655 B2 · Film, member, transfer device, and image forming apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,498,655 B2 - Document ID: US12498655B2 - Status: Granted - Kind: B2 - Application number: 18/808,364 - Filed: 2024-08-19 - Published: 2025-09-11 - Granted: 2025-12-16 - Earliest claimed: 2024-08-19 - Assignees: FUJIFILM Business Innovation Corp. - Applicants: FUJIFILM Business Innovation Corp. - Inventors: Yosuke Kubo; Masato Furukawa; Ryosuke Kubota; Daisuke Tanemura; Masayuki Seko; Yoshiro Yamashita; Shigeru Fukuda; Hiroaki Tanaka - Web page: https://patentgrep.com/patent/US12498655B2 ## CPC - G03G 15/162: {details of the the intermediate support, e.g. chemical composition} - C08G 73/10: Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors - C08G 73/14: Polyamide-imides - C08G 77/14: containing silicon bound to oxygen-containing groups - C08L 79/08: Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors - C08L 83/04: Polysiloxanes - C09D 183/04: Polysiloxanes - C09D 183/06: containing silicon bound to oxygen-containing groups (C09D183/12 takes precedence) - C09J 179/08: Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors - G03G 15/1685: {Structure, details of the transfer member, e.g. chemical composition} - C08K 3/04: Carbon - C08L 2203/16: used for films - G03G 2215/1623: Transfer belt - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H) - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) ## Abstract A film includes: a binder resin; and an ester-modified silicone resin, in which the film has a first surface having a static friction coefficient denoted as A and a second surface having a static friction coefficient denoted as B, and A/B is 0.85 or less. ## Claims ### Claim 1 A film comprising: a binder resin; and an ester-modified silicone resin, wherein the film has a first surface having a static friction coefficient denoted as A and a second surface having a static friction coefficient denoted as B, and A/B is 0.85 or less. ### Claim 2 (depends on 1) The film according to claim 1, wherein the binder resin is a polyimide-based resin. ### Claim 3 (depends on 1) The film according to claim 1, wherein, when polyester resin particles having a volume average particle diameter of 4.7 μm are caused to adhere to the first surface under a load of 0 N and then air is blown onto the first surface from above while blowing pressure is increased, all the polyester resin particles adhering to the first surface are separated from the first surface before or when the blowing pressure reaches 16 kPa. ### Claim 4 (depends on 1) The film according to claim 1, wherein the content of the ester-modified silicone resin with respect to the mass of the binder resin is 0.1% by mass or more and 6.0% by mass or less. ### Claim 5 (depends on 1) The film according to claim 1, wherein the ester-modified silicone resin has a silanol group at at least one of terminal ends of main and side chains. ### Claim 6 (depends on 1) A member comprising the film according to claim 1. ### Claim 7 (depends on 2) A member comprising the film according to claim 2. ### Claim 8 (depends on 3) A member comprising the film according to claim 3. ### Claim 9 (depends on 4) A member comprising the film according to claim 4. ### Claim 10 (depends on 5) A member comprising the film according to claim 5. ### Claim 11 (depends on 6) A transfer device comprising: an intermediate transfer body including the member according to claim 6 and having an outer circumferential surface onto which a toner image is to be transferred; a first transfer unit that first-transfers a toner image formed on a surface of an image holding member onto the outer circumferential surface of the intermediate transfer body; and a second transfer unit that second-transfers the toner image transferred onto the outer circumferential surface of the intermediate transfer body onto a surface of a recording medium. ### Claim 12 (depends on 7) A transfer device comprising: an intermediate transfer body including the member according to claim 7 and having an outer circumferential surface onto which a toner image is to be transferred; a first transfer unit that first-transfers a toner image formed on a surface of an image holding member onto the outer circumferential surface of the intermediate transfer body; and a second transfer unit that second-transfers the toner image transferred onto the outer circumferential surface of the intermediate transfer body onto a surface of a recording medium. ### Claim 13 (depends on 8) A transfer device comprising: an intermediate transfer body including the member according to claim 8 and having an outer circumferential surface onto which a toner image is to be transferred; a first transfer unit that first-transfers a toner image formed on a surface of an image holding member onto the outer circumferential surface of the intermediate transfer body; and a second transfer unit that second-transfers the toner image transferred onto the outer circumferential surface of the intermediate transfer body onto a surface of a recording medium. ### Claim 14 (depends on 9) A transfer device comprising: an intermediate transfer body including the member according to claim 9 and having an outer circumferential surface onto which a toner image is to be transferred; a first transfer unit that first-transfers a toner image formed on a surface of an image holding member onto the outer circumferential surface of the intermediate transfer body; and a second transfer unit that second-transfers the toner image transferred onto the outer circumferential surface of the intermediate transfer body onto a surface of a recording medium. ### Claim 15 (depends on 10) A transfer device comprising: an intermediate transfer body including the member according to claim 10 and having an outer circumferential surface onto which a toner image is to be transferred; a first transfer unit that first-transfers a toner image formed on a surface of an image holding member onto the outer circumferential surface of the intermediate transfer body; and a second transfer unit that second-transfers the toner image transferred onto the outer circumferential surface of the intermediate transfer body onto a surface of a recording medium. ### Claim 16 (depends on 11) An image forming apparatus comprising: an image holding member; a charging device that charges a surface of the image holding member; an electrostatic latent image forming device that forms an electrostatic latent image on the charged surface of the image holding member; a developing device that houses a developer containing a toner and develops the electrostatic latent image formed on the surface of the image holding member with the developer to thereby form a toner image; the transfer device according to claim 11 that transfers the toner image onto a surface of a recording medium; and a fixing device that fixes the toner image to the recording medium. ### Claim 17 (depends on 12) An image forming apparatus comprising: an image holding member; a charging device that charges a surface of the image holding member; an electrostatic latent image forming device that forms an electrostatic latent image on the charged surface of the image holding member; a developing device that houses a developer containing a toner and develops the electrostatic latent image formed on the surface of the image holding member with the developer to thereby form a toner image; the transfer device according to claim 12 that transfers the toner image onto a surface of a recording medium; and a fixing device that fixes the toner image to the recording medium. ### Claim 18 (depends on 13) An image forming apparatus comprising: an image holding member; a charging device that charges a surface of the image holding member; an electrostatic latent image forming device that forms an electrostatic latent image on the charged surface of the image holding member; a developing device that houses a developer containing a toner and develops the electrostatic latent image formed on the surface of the image holding member with the developer to thereby form a toner image; the transfer device according to claim 13 that transfers the toner image onto a surface of a recording medium; and a fixing device that fixes the toner image to the recording medium. ### Claim 19 (depends on 14) An image forming apparatus comprising: an image holding member; a charging device that charges a surface of the image holding member; an electrostatic latent image forming device that forms an electrostatic latent image on the charged surface of the image holding member; a developing device that houses a developer containing a toner and develops the electrostatic latent image formed on the surface of the image holding member with the developer to thereby form a toner image; the transfer device according to claim 14 that transfers the toner image onto a surface of a recording medium; and a fixing device that fixes the toner image to the recording medium. ### Claim 20 (depends on 15) An image forming apparatus comprising: an image holding member; a charging device that charges a surface of the image holding member; an electrostatic latent image forming device that forms an electrostatic latent image on the charged surface of the image holding member; a developing device that houses a developer containing a toner and develops the electrostatic latent image formed on the surface of the image holding member with the developer to thereby form a toner image; the transfer device according to claim 15 that transfers the toner image onto a surface of a recording medium; and a fixing device that fixes the toner image to the recording medium.