The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 2024
Filed:
Jun. 30, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An electrophotographic member comprising a base layer and a surface layer, the surface layer including at least one of an acrylic resin and a methacrylic resin, perfluoropolyether having a specified structure and a fluorine-containing copolymer, the fluorine-containing copolymer having a first polymerized unit of at least one of methyl acrylate and methyl methacrylate, and a second polymerized unit of at least one of methyl acrylate having a fluoroalkyl group and methyl methacrylate having a fluoroalkyl group, a molar ratio between the first polymerized unit and the second polymerized unit being 7 to 12, the fluorine-containing copolymer having Mw of 80000 or more and 150000 or less, and the ratio between Mn and Mw (Mw/Mn) being 3.0 or more and 6.5 or less.