US 9,811,011 B2
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
Masashi Nishi, Susono (JP); Kunihiko Sekido, Suntou-gun (JP); Michiyo Sekiya, Atami (JP); Kei Tagami, Yokohama (JP); and Akihito Saitoh, Gotemba (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jun. 16, 2016, as Appl. No. 15/184,100.
Claims priority of application No. 2015-128104 (JP), filed on Jun. 25, 2015.
Prior Publication US 2016/0378001 A1, Dec. 29, 2016
Int. Cl. G03G 5/14 (2006.01)
CPC G03G 5/142 (2013.01) 3 Claims
 
1. An electrophotographic photosensitive member, comprising:
an electroconductive support;
an undercoat layer formed on the support; and
a photosensitive layer formed on the undercoat layer, wherein
the undercoat layer contains a compound represented by formula (1):

OG Complex Work Unit Drawing
where R1 represents a substituted or unsubstituted alkyl group having 7 to 20 carbon atoms in a main chain thereof, a group derived by substituting at least one CH2 in a main chain of a substituted or unsubstituted alkyl group having 7 to 20 carbon atoms in the main chain with an oxygen atom, a group derived by substituting at least one CH2 in a main chain of a substituted or unsubstituted alkyl group having 7 to 20 carbon atoms in the main chain with a sulfur atom, a group derived by substituting at least one CH2 in a main chain of a substituted or unsubstituted alkyl group having 7 to 20 carbon atoms in the main chain with NR17, a group derived by substituting at least one CH2 in a main chain of a substituted or unsubstituted alkyl group having 7 to 20 carbon atoms in the main chain with SiR18R19, a group derived by substituting at least one carbon-carbon single bond in a main chain of a substituted or unsubstituted alkyl group having 7 to 20 carbon atoms in the main chain with a carbon-carbon double bond, a substituted or unsubstituted cycloalkyl group having 7 to 20 carbon atoms in a main chain thereof, or a substituted or unsubstituted aryl group, and R17, R18, and R19 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms in a main chain thereof, or a substituted or unsubstituted aryl group;
R2 represents a substituted or unsubstituted alkyl group having 7 to 20 carbon atoms in a main chain thereof, a group derived by substituting at least one CH2 in a main chain of a substituted or unsubstituted alkyl group having 7 to 20 carbon atoms in the main chain with an oxygen atom, a group derived by substituting at least one CH2 in a main chain of a substituted or unsubstituted alkyl group having 7 to 20 carbon atoms in the main chain with a sulfur atom, a group derived by substituting at least one CH2 in a main chain of a substituted or unsubstituted alkyl group having 7 to 20 carbon atoms in the main chain with NR20, a group derived by substituting at least one CH2 in a main chain of a substituted or unsubstituted alkyl group having 7 to 20 carbon atoms in the main chain with SiR21R22, a group derived by substituting at least one carbon-carbon single bond in a main chain of a substituted or unsubstituted alkyl group having 7 to 20 carbon atoms in the main chain with a carbon-carbon double bond, or a substituted or unsubstituted cycloalkyl group having 7 to 20 carbon atoms in a main chain thereof, and R20,R21, and R22 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms in a main chain thereof, or a substituted or unsubstituted aryl group;
a substituent of the alkyl group comprises an alkyl group having 1 to 6 carbon atoms, a benzyl group, or a phenyl group;
a substituent of each of the group derived by substituting at least one CH2 in the main chain of the alkyl group with an oxygen atom, the group derived by substituting at least one CH2 in the main chain of the alkyl group with a sulfur atom, the group derived by substituting at least one CH2 in the main chain of the alkyl group with NR17 or NR20, the group derived by substituting at least one CH2 in the main chain of the alkyl group with SiR18R19 or SiR21R22, the group derived by substituting at least one carbon-carbon single bond in the main chain of the alkyl group with a carbon-carbon double bond, and the cycloalkyl group includes an alkyl group having 1 to 6 carbon atoms, a benzyl group, or a phenyl group;
a substituent of the aryl group comprises a halogen atom, a cyano group, a nitro group, an alkyl group having 1 to 4 carbon atoms, an acyl group, or an alkoxy group; and
X represents one structure selected from the group consisting of formula (X1), formula (X2), and formula (X3):

OG Complex Work Unit Drawing
where R3 to R16 each independently represent a hydrogen atom, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms in a main chain thereof, or a substituted or unsubstituted aryl group.