Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
AssigneeCanon Kabushiki Kaisha
InventorsRyoichi Tokimitsu, Yuka Ishiduka, Wataru Kitamura, Kenichi Kaku, Mai Murakami
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Abstract
Provided is an electrophotographic photosensitive member in which an undercoat layer is a layer of which at least one selected from the group consisting of a compound represented by the formula (1), a compound represented by the formula (2), a compound represented by the formula (3) and a compound represented by the formula (4) can be detected by gas chromatography analysis when the undercoat layer is heated at 150° C. for 60 minutes by headspace method.
Claims16
An electrophotographic photosensitive member, comprising:
- a support;
- an undercoat layer comprising a resin and metal oxide particles, formed on the support;
- and
- a photosensitive layer formed on the undercoat layer;
- wherein the undercoat layer is a layer of which an azole compound is detected by gas chromatography analysis when the undercoat layer is heated at 150° C. for 60 minutes by headspace method, and
- the azole compound is at least one selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), a compound represented by the following formula (3) and a compound represented by the following formula (4),
- wherein, in the formulas (1) to (4),
- R1 to R4, R11 to R13, R21 to R23 and R31 to R34 each independently represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.
A method of producing an electrophotographic photosensitive member which comprises a support, an undercoat layer formed on the support and a photosensitive layer formed on the undercoat layer, comprising the steps of:
- forming a coat for the undercoat layer by using an undercoat-layer coating liquid comprising metal oxide particles, an isocyanate compound, a polyol resin and an azole compound;
- and
- heating the coat to form the undercoat layer;
- wherein the azole compound is at least one selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), a compound represented by the following formula (3) and a compound represented by the following formula (4),
- wherein, in the formulas (1) to (4),
- R1 to R4, R11 to R13, R21 to R23 and R31 to R34 each independently represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.
A method of producing an electrophotographic photosensitive member which comprises a support, an undercoat layer formed on the support and a photosensitive layer formed on the undercoat layer, comprising the steps of:
- forming a coat for the undercoat layer by using an undercoat-layer coating liquid comprising metal oxide particles, a blocked isocyanate compound whose an isocyanate group has been blocked with an azole compound, and a polyol resin;
- and
- heating the coat to form the undercoat layer;
- wherein the azole compound is at least one selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), a compound represented by the following formula (3) and a compound represented by the following formula (4),
- wherein, in the formulas (1) to (4),
- R1 to R4, R11 to R13, R21 to R23 and R31 to R34 each independently represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.
Dependencies are inferred from the claim text.