US 12,306,577 B2
Electrophotographic member and electrophotographic image forming apparatus
Masahiro Takenaga, Kanagawa (JP); and Yusuke Baba, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Apr. 4, 2022, as Appl. No. 17/657,810.
Claims priority of application No. 2021-067255 (JP), filed on Apr. 12, 2021; and application No. 2022-039155 (JP), filed on Mar. 14, 2022.
Prior Publication US 2022/0334506 A1, Oct. 20, 2022
Int. Cl. G03G 5/10 (2006.01)
CPC G03G 5/105 (2013.01) [G03G 5/104 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An electrophotographic member comprising a base layer and an elastic layer on the base layer, wherein
the elastic layer comprises a rubber mixture comprising rubber as a matrix, an anion, a cation, and an inorganic layered double hydroxide compound, wherein
the anion is at least one selected from the group consisting of structural formulae (1) to (3),
the cation is at least one selected from the group consisting of structural formulae (4) to (7), and
the inorganic layered double hydroxide compound has an average value of interlayer distances of 4 Å or larger and 8 Å or smaller, which are measured by XRD:

OG Complex Work Unit Chemistry
(wherein in structural formula (3), X represents a halogen element;)

OG Complex Work Unit Chemistry
(wherein in structural formulae (4) and (5), R1 to R4 each independently represent an alkyl group having 6 to 16 carbon atoms, an alkoxy group having 6 to 16 carbon atoms, a hydroxyl group, a phenyl group, a benzyl group or a carboxyl group;)

OG Complex Work Unit Chemistry
(wherein in structural formulae (6) and (7), R5 to R7 each independently represent an alkyl group having 4 to 16 carbon atoms, an alkoxy group having 4 to 16 carbon atoms, a hydroxyl group, a phenyl group, a benzyl group or a carboxyl group; R8 to R10 each independently represent an alkyl group having 1 to 16 carbon atoms;
R11 represents an alkylene group having 1 to 16 carbon atoms, which optionally has a substituent; the alkylene group optionally has a structure through a group selected from the group consisting of -Ph-, —O—, —C(═O)—, —C(═O)—O—, and —C(═O)—NR— (where R represents an alkyl group having 1 to 6 carbon atoms); and
m represents an integer of 1 or more and 16 or less.).