Patent ID: 11927904
Assignee: CANON KABUSHIKI KAISHA
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC G  C | IPC C  G

Claim 10:
11. A fixing device comprising:
a fixing belt having an endless shape; and
a rotating body for pressurization arranged to face the fixing belt,
wherein the fixing belt is an electrophotographic belt of an endless shape including a substrate of an endless shape,
wherein the substrate contains a polyimide resin and carbon nanotubes,
wherein a content of the carbon nanotubes in the substrate is 15 vol % or less with respect to a total volume of the polyimide resin,
wherein the substrate has a tensile strength of 200 MPa or more in each of a peripheral direction thereof and a direction perpendicular to the peripheral direction, and
wherein the substrate has a thermal conductivity of 0.9 W/(m·K) or more in a thickness direction thereof, and
wherein when measuring a surface of the substrate by a reflection X-ray diffraction method, and an intensity of a diffraction peak derived from a (100) crystal plane of each of the carbon nanotubes is represented by I(100) and an intensity of a diffraction peak derived from a (002) crystal plane of each of the carbon nanotubes is represented by I(002), a ratio I(002)/I(100) is 35 or less.