ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE, IMAGE FORMATION DEVICE, COATING LIQUID FOR FORMING ELECTROPHOTOGRAPHIC PHOTORECEPTOR PROTECTIVE LAYER, AND COMPOUND

WIPO Patent Application WO/2023/127783

A1

The present invention provides a novel compound which has electron transport properties and sufficient solubility with respect to organic solvents. The present invention also provides a novel electrophotographic photoreceptor which makes it possible to achieve good electric properties, particularly residual potential properties and potential holding rate, even when a compound having an electron transport structure is contained in a protective layer.　Provided is a compound represented by formula (1). Also provided is an electrophotographic photoreceptor comprising at least a photosensitive layer and a protective layer, in this order, on a conductive support, wherein the protective layer contains an electron transport compound represented by formula (1). (In formula (1), X represents an electron transport skeleton. R1 and R2 each independently represent a hydrogen atom, an alkyl group which may have a substituent, an alkoxy group which may have a substituent, an aryloxy group which may have a substituent, a heteroaryloxy group which may have a substituent, an alkoxy carbonyl group which may have a substituent, a dialkylamino group which may have a substituent, a diarylamino group which may have a substituent, an arylalkylamino group which may have a substituent, an acyl group which may have a substituent, a haloalkyl group which may have a substituent, an alkylthio group which may have a substituent, an arylthio group which may have a substituent, a silyl group which may have a substituent, a siloxy group which may have a substituent, an aromatic hydrocarbon group which may have a substituent, or an aromatic heterocyclic group which may have a substituent. L1 represents a divalent group. Z1 represents amide group (-NHCO-R'), an acrylamide group, a methacrylamide group, an acryloyl group, or a methacryloyl group; Z1 represents an amide group, an acrylamide group, or a methacrylamide group when a is 1; and at least one thereof represents an amide group, an acrylamide group, or a methacrylamide group when a is an integer of 2 or greater. R' represents a hydrogen atom, an alkyl group which may have a substituent, an aralkyl group which may have a substituent, or an aromatic group which may have a substituent. a represents an integer of 1 or greater. When a is an integer or 2 or greater, R1, R2, L1, and Z1 in each repeating structure may be identical or different.

HASEGAWA TSUKASA (JP)
OTERO RAMIREZ MANUEL EMILIO (JP)
ANDO AKIRA (JP)
GOROUMARU HIDEKI (JP)

PCT/JP2022/047851

July 06, 2023

December 26, 2022

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MITSUBISHI CHEM CORP (JP)

G03G5/147; C07D209/48; C07D471/06; C07D487/04; G03G5/06; G03G5/07

JP2017202987A	2017-11-16
JP2006511478A	2006-04-06
JP2014507949A	2014-04-03

ICHIZAWA, KAWADA & ASSOCIATES (JP)

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