Electrophotographic member having a surface layer with a cross-linked urethane resin-containing matrix, process cartridge, and apparatus

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United States of America Patent

PATENT NO 10942471
APP PUB NO 20200310283A1
SERIAL NO

16821131

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Abstract

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The electrophotographic member includes: an electroconductive substrate; and a surface layer having a mono-layer structure, wherein the surface layer has a matrix containing a cross-linked urethane resin as a binder, and when an elastic modulus of the matrix in a first region in a thickness direction from an outer surface of the surface layer to a depth of 0.1 μm from the outer surface of the surface layer is defined as E1, and an elastic modulus of the matrix in a second region in a thickness direction from a depth of 1.0 μm from the outer surface of the surface layer to 1.1 μm from the outer surface of the surface layer is defined as E2, E1 and E2 satisfy the following Expressions (1) and (2), respectively:

description='In-line Formulae' end='lead'E1≥200 MPa  (1); anddescription='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'10 MPa≤E2≤100 MPa  (2).description='In-line Formulae' end='tail'

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHA3-30-2 TOKYO JAPAN TOKYO TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arimura, Hideya Shizuoka, JP 21 497
Ishii, Toru Mishima, JP 178 1823
Matsunaga, Kenta Susono, JP 11 100
Moriai, Wataru Suntou-gun, JP 5 18
Nagaoka, Kazuaki Susono, JP 24 211
Ogawa, Yoshinobu Numazu, JP 13 60
Sugiyama, Ryo Mishima, JP 31 223
Uesugi, Tomoya Susono, JP 15 213
Uno, Masashi Mishima, JP 12 101
Utsuno, Fumihiko Suntou-gun, JP 5 46

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