# US 8,787,810 B2 · Fixing rotating member and fixing device equipped with the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,787,810 B2 - Document ID: US8787810B2 - Status: Granted - Kind: B2 - Application number: 13/357,415 - Filed: 2012-01-24 - Published: 2012-08-02 - Granted: 2014-07-22 - Earliest claimed: 2011-01-27 - Assignees: Canon Kabushiki Kaisha - Applicants: Hiroyuki Sakakibara; Noriaki Sato; Shuji Saito - Inventors: Hiroyuki Sakakibara; Noriaki Sato; Shuji Saito - Web page: https://patentgrep.com/patent/US8787810B2 ## CPC - G03G 15/20: for fixing, e.g. by using heat - G03G 15/2039: {with means for controlling the fixing temperature} - G03G 15/2042: {specially for the axial heat partition} - G03G 15/2057: {relating to the chemical composition of the heat element and layers thereof} - G03G 15/2003: {using heat} - G03G 15/2064: {combined with pressure} - G03G 2215/2016: Heating belt - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY ## Abstract A fixing rotating member configured to, together with a pressure member, pinch and transport a recording material carrying an image includes a base material and a releasing layer, wherein the releasing layer is made of at least one fluorine resin selected from among tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, ethylene-tetrafluoroethylene copolymer, and tetrafluoroethylene-hexafluoropropylene copolymer, the fluorine resin containing at least one type of polymer selected from among polyvinylidene fluoride, polyacrylonitrile, and polymethyl methacrylate, and monomer electrolyte. ## Claims ### Claim 1 A fixing rotating member configured to, together with a pressure member, pinch and transport a recording material carrying an image, the fixing rotating member comprising: a base material; and a releasing layer, wherein the releasing layer is made of at least one fluorine resin selected from among tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, ethylene-tetrafluoroethylene copolymer, and tetrafluoroethylene-hexafluoropropylene copolymer, the fluorine resin containing: at least one polymer selected from among polyvinylidene fluoride, polyacrylonitrile, and polymethyl methacrylate; and monomer electrolyte, and wherein an amount of addition of the polymer to the fluorine resin is in the range of 0.01 parts to 5 parts relative to 100 parts of the fluorine resin. ### Claim 2 (depends on 1) The fixing rotating member according to claim 1, wherein the monomer electrolyte is a fluorinated surfactant. ### Claim 3 (depends on 2) The fixing rotating member according to claim 2, wherein the fluorinated surfactant is a fluoroalkylsulfonic acid derivative. ### Claim 4 (depends on 3) The fixing rotating member according to claim 3, wherein the fluoroalkylsulfonic acid derivative includes one of sulfonic acid, disulphonic acid, sulfonyl imide, and sulfonamide. ### Claim 5 (depends on 3) The fixing rotating member according to claim 3, wherein an amount of addition of the fluoroalkylsulfonic acid derivative to the fluorine resin is in the range of 0.01 parts to 5 parts relative to 100 parts of the fluorine resin. ### Claim 6 (depends on 5) The fixing rotating member according to claim 5, wherein an amount of addition of the fluoroalkylsulfonic acid derivative to the fluorine resin is in the range of 0.05 parts to 5 parts relative to 100 parts of the fluorine resin. ### Claim 7 (depends on 1) The fixing rotating member according to claim 1, further comprising an adhesive layer between the base material and the releasing layer, the adhesive layer containing a conductive particle. ### Claim 8 (depends on 1) The fixing rotating member according to claim 1, further comprising an adhesive layer between the base material and the releasing layer, the adhesive layer containing monomer electrolyte. ### Claim 9 (depends on 1) The fixing rotating member according to claim 1, further comprising an adhesive layer between the base material and the releasing layer, the adhesive layer including a conductive particle and monomer electrolyte. ### Claim 10 (depends on 1) The fixing rotating member according to claim 1, further comprising an elastic layer between the base material and the releasing layer. ### Claim 11 (depends on 10) The fixing rotating member according to claim 10, further comprising an adhesive layer between the elastic layer and the releasing layer, the adhesive layer containing a conductive particle. ### Claim 12 (depends on 10) The fixing rotating member according to claim 10, further comprising an adhesive layer between the elastic layer and the releasing layer, the adhesive layer containing monomer electrolyte. ### Claim 13 (depends on 10) The fixing rotating member according to claim 10, further comprising an adhesive layer between elastic layer and the releasing layer, the adhesive layer containing a conductive particle and monomer electrolyte. ### Claim 14 (depends on 1) The fixing rotating member according to claim 1, wherein the releasing layer is a tube. ### Claim 15 (depends on 1) The fixing rotating member according to claim 1, wherein an amount of addition of the polymer to the fluorine resin is in the range of 0.05 parts to 5 parts relative to 100 parts of the fluorine resin. ### Claim 16 (depends on 1) The fixing rotating member according to claim 1, wherein the fixing rotating member is an endless belt. ### Claim 17 (depends on 1) The fixing rotating member according to claim 1, wherein the fixing rotating member is a heat roller. ### Claim 18 A fixing device comprising: a fixing rotating member including a base material and a releasing layer; and a pressure member forming, together with the fixing rotating member, a nip portion configured to heat, while pinching and transporting, a recording material carrying an image, wherein the releasing layer is made of at least one fluorine resin selected from among tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, ethylene-tetrafluoroethylene copolymer, and tetrafluoroethylene-hexafluoropropylene copolymer, the fluorine resin containing: at least one polymer selected from among polyvinylidene fluoride, polyacrylonitrile, and polymethyl methacrylate; and monomer electrolyte, and wherein an amount of addition of the polymer to the fluorine resin is in the range of 0.01 parts to 5 parts relative to 100 parts of the fluorine resin. ### Claim 19 (depends on 18) The fixing device according to claim 18, further comprising a voltage applying member provided for at least one of the fixing rotating member and the pressure member to apply a voltage to an image on the recording material in a direction to press the image against the recording material. ### Claim 20 (depends on 18) The fixing device according to claim 18, wherein an amount of addition of the polymer to the fluorine resin is in the range of 0.05 parts to 5 parts relative to 100 parts of the fluorine resin. ### Claim 21 (depends on 18) The fixing device according to claim 18, wherein the monomer electrolyte is a fluorinated surfactant. ### Claim 22 (depends on 21) The fixing device according to claim 21, wherein the fluorinated surfactant is a fluoroalkylsulfonic acid derivative. ### Claim 23 (depends on 22) The fixing device according to claim 22, wherein the fluoroalkylsulfonic acid derivative includes one of sulfonic acid, disulphonic acid, sulfonyl imide, and sulfonamide. ### Claim 24 (depends on 22) The fixing device according to claim 22, wherein an amount of addition of the fluoroalkylsulfonic acid derivative to the fluorine resin is in the range of 0.01 parts to 5 parts relative to 100 parts of the fluorine resin. ### Claim 25 (depends on 24) The fixing device according to claim 24, wherein an amount of addition of the fluoroalkylsulfonic acid derivative to the fluorine resin is in the range of 0.05 parts to 5 parts relative to 100 parts of the fluorine resin. ### Claim 26 (depends on 18) The fixing device according to claim 18, further comprising an adhesive layer between the base material and the releasing layer, the adhesive layer containing at least one of a conductive particle and monomer electrolyte. ### Claim 27 (depends on 18) The fixing device according to claim 18, further comprising an elastic layer between the base material and the releasing layer. ### Claim 28 (depends on 27) The fixing device according to claim 27, further comprising an adhesive layer between the elastic layer and the releasing layer, the adhesive layer containing at least one of a conductive particle and monomer electrolyte. ### Claim 29 (depends on 18) The fixing device according to claim 18, wherein the releasing layer is a tube. ### Claim 30 (depends on 18) The fixing device according to claim 18, wherein the fixing rotating member is an endless belt. ### Claim 31 (depends on 30) The fixing device according to claim 30, further comprising a heater, wherein the heater being in contact with an inner surface of the endless belt. ### Claim 32 (depends on 18) The fixing device according to claim 18, wherein the fixing rotating member is a heat roller. ### Claim 33 A fixing rotating member configured to, together with a pressure member, pinch and transport a recording material carrying an image, the fixing rotating member comprising: a base material; a releasing layer, and an adhesive layer arranged between the base material and the releasing layer, wherein the releasing layer is made of at least one fluorine resin selected from among tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, ethylene-tetrafluoroethylene copolymer, and tetrafluoroethylene-hexafluoropropylene copolymer, the fluorine resin containing: at least one polymer selected from among polyvinylidene fluoride, polyacrylonitrile, and polymethyl methacrylate; and monomer electrolyte, and wherein the adhesive layer containing monomer electrolyte. ### Claim 34 (depends on 33) The fixing rotating member according to claim 33, wherein the adhesive layer further containing a conductive particle. ### Claim 35 (depends on 33) The fixing rotating member according to claim 33, wherein the fixing rotating member is an endless belt. ### Claim 36 A fixing rotating member configured to, together with a pressure member, pinch and transport a recording material carrying an image, the fixing rotating member comprising: a base material; a releasing layer, and an elastic layer arranged between the base material and the releasing layer, wherein the releasing layer is made of at least one fluorine resin selected from among tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, ethylene-tetrafluoroethylene copolymer, and tetrafluoroethylene-hexafluoropropylene copolymer, the fluorine resin containing: at least one polymer selected from among polyvinylidene fluoride, polyacrylonitrile, and polymethyl methacrylate; and monomer electrolyte. ### Claim 37 (depends on 36) The fixing rotating member according to claim 36, further comprising an adhesive layer between the elastic layer and the releasing layer, the adhesive layer containing at least one of a conductive particle and monomer electrolyte. ### Claim 38 (depends on 36) The fixing rotating member according to claim 36, wherein the fixing rotating member is an endless belt.