# US 9,436,137 B2 · Intermediate transfer members > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,436,137 B2 - Document ID: US9436137B2 - Status: Granted - Kind: B2 - Application number: 14/529,381 - Filed: 2014-10-31 - Published: 2016-05-05 - Granted: 2016-09-06 - Earliest claimed: 2014-10-31 - Assignees: Xerox Corporation - Applicants: Xerox Corporation - Inventors: Jin Wu - Web page: https://patentgrep.com/patent/US9436137B2 ## CPC - G03G 15/162: {details of the the intermediate support, e.g. chemical composition} - C08G 73/105: {with oxygen only in the diamino moiety} - C08G 73/1067: {Wholly aromatic polyimides, i.e. having both tetracarboxylic and diamino moieties aromatically bound} - C08G 73/1071: {Wholly aromatic polyimides containing oxygen in the form of ether bonds in the main chain} - C08K 3/04: Carbon - C08K 5/521: Esters of phosphoric acids, e.g. of H3PO4 - C08L 27/12: containing fluorine atoms - C08L 79/08: Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors - C08L 83/04: Polysiloxanes - C09D 179/08: Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors - C08K 2201/001: Conductive additives - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - 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) ## Abstract An intermediate transfer member that contains a mixture of a polyimide, an optional conductive component, and a fluoroaliphatic phosphate. ## Claims ### Claim 1 An intermediate transfer member comprised of a polyimide, a fluoroaliphatic phosphate, and an optional conductive component, and wherein said fluoroaliphatic phosphate is of the following alternative formulas/structures wherein Rf is a perfluoroalkyl of CnF2n+1 wherein n is a number of from about 1 to about 18. ### Claim 2 (depends on 1) The intermediate transfer member in accordance with claim 1 wherein said fluoroaliphatic phosphate is represented by the following formula/structure ### Claim 3 (depends on 1) The intermediate transfer member in accordance with claim 1 wherein said fluoroaliphatic phosphate is present in an amount of from about 0.1 to about 1 weight percent of total solids and wherein n is a number of from about 2 to about 16. ### Claim 4 (depends on 1) The intermediate transfer member in accordance with claim 1 wherein said polyimide is represented by at least one of the following formulas/structures wherein n represents the number of repeating segments of from about 20 to about 100. ### Claim 5 (depends on 1) The intermediate transfer member in accordance with claim 1 that further comprises a polysiloxane polymer selected from the group consisting of a polyester modified polydimethylsiloxane, a polyether modified polydimethylsiloxane, a polyacrylate modified polydimethylsiloxane, and a polyester polyether modified polydimethylsiloxane. ### Claim 6 (depends on 1) The intermediate transfer member in accordance with claim 1 wherein the polyimide and the fluoroaliphatic phosphate are present in a weight ratio of from about 99.99/0.01 to about 95/5, and optionally wherein said polyimide is represented by the following formula/structure wherein n represents the number of repeating segments of from about 20 to about 100. ### Claim 7 (depends on 1) The intermediate transfer member in accordance with claim 1 with a Young's modulus of from about 4,000 to about 8,000 MPa. ### Claim 8 (depends on 1) The intermediate transfer member in accordance with claim 1 wherein said conductive component is present, and is selected from the group consisting of carbon blacks, metal oxides, polyanilines, and mixtures thereof. ### Claim 9 (depends on 1) The intermediate transfer member in accordance with claim 1 wherein said conductive component is present and is carbon black, and said fluoroaliphatic phosphate functions as a dispersing agent for said carbon black. ### Claim 10 (depends on 1) The intermediate transfer member in accordance with claim 1 wherein said fluoroaliphatic phosphate is selected from the group consisting of perfluorohexylethyl phosphate, perfluorooctylethyl phosphate, di(perfluorohexylethyl) phosphate, di(perfluorooctylethyl) phosphate, and mixtures thereof. ### Claim 11 (depends on 1) The intermediate transfer member in accordance with claim 1 further including a release layer comprising at least one component selected from the group consisting of a fluorinated ethylene propylene copolymer, a polytetrafluoroethylene, a polyfluoroalkoxy polytetrafluoroethylene, a fluorosilicone, a terpolymer of vinylidene fluoride, hexafluoropropylene, and tetrafluoroethylene, and mixtures thereof. ### Claim 12 (depends on 1) The intermediate transfer member in accordance with claim 1 wherein said member self-releases from a supporting substrate of a metal subsequent to being deposited on said metal, and is capable of self-releasing from the supporting substrate in from about 1 to about 10 seconds. ### Claim 13 (depends on 1) The intermediate transfer member in accordance with claim 1 where said conductive component is present, and wherein the polyimide/conductive component/fluoroaliphatic phosphate weight ratio is from about 50/49.99/0.01 to about 94.9/5/0.1. ### Claim 14 (depends on 1) The intermediate transfer member in accordance with claim 1 wherein said fluoroaliphatic phosphate simultaneously functions as an internal release additive, a leveling agent, and a dispersing agent. ### Claim 15 (depends on 1) The intermediate transfer member in accordance with claim 1 further including a supporting substrate. ### Claim 16 (depends on 1) The intermediate transfer member in accordance with claim 1 wherein said fluoroaliphatic phosphate is a perfluorohexylethyl phosphate. ### Claim 17 An intermediate transfer member comprising a layer comprised of a polyimide, carbon black, and a fluoroaliphatic phosphate of the following alternative formulas/structures wherein Rf is a perfluoroalkyl of CnF2n+1 and wherein n is a number of from about 1 to about 18. ### Claim 18 (depends on 17) The intermediate transfer member in accordance with claim 17 wherein n is a number of from about 1 to about 10. ### Claim 19 (depends on 17) The intermediate transfer member in accordance with claim 17 wherein said fluoroaliphatic phosphate is represented by the following formula/structure wherein n is a number of from about 3 to about 12. ### Claim 20 (depends on 17) The intermediate transfer member in accordance with claim 17 wherein said fluoroaliphatic phosphate is represented by the following formula/structure wherein n is a number of from about 2 to about 16. ### Claim 21 An intermediate transfer member comprising a supporting substrate, and a layer thereover comprised of a mixture of a polyimide generated from a polyamic acid or mixtures thereof, carbon black, and a fluoroaliphatic phosphate selected from a group consisting of perfluorohexylethyl phosphate, perfluorooctylethyl phosphate, di(perfluorohexylethyl) phosphate, di(perfluorooctylethyl) phosphate, and mixtures thereof, and wherein said member optionally possesses a Young's modulus of from about 5,000 to about 8,000 MPa.