JP2014029479A5

JP2014029479A5 -

Info

Publication number: JP2014029479A5
Application number: JP2013112111A
Authority: JP
Filing date: 2013-05-28
Publication date: 2014-10-23
Anticipated expiration: 2033-05-28

Description

本発明は、支持体、該支持体上に形成された下引き層、および該下引き層上に形成された感光層を有する電子写真感光体において、
該下引き層は、
（ｉ）−ＮＣＯ基および−ＮＨＣＯＸ^１基（Ｘ^１は下記式（１）〜（７）のいずれかで示される基である。）からなる群より選択される基を３〜６個有する分子量（−ＮＨＣＯＸ^１基を有する場合は、Ｘ^１基を除いて算出した分子量である。）が２００〜１３００のイソシアネート化合物、
（ｉｉ）下記式（Ｂ）で示される構造単位を有する樹脂、および
（ｉｉｉ）下記式（Ａ１）で示される化合物、下記式（Ａ２）で示される化合物、下記式（Ａ３）で示される化合物、下記式（Ａ４）で示される化合物、下記式（Ａ５）で示される化合物、下記式（Ａ６）で示される化合物、下記式（Ａ７）で示される化合物および下記式（Ａ８）で示される化合物からなる群より選択される少なくとも１種の化合物、を含む組成物の重合物を含有することを特徴とする電子写真感光体に関する。 The present invention relates to an electrophotographic photosensitive member having a support, an undercoat layer formed on the support, and a photosensitive layer formed on the undercoat layer.
The undercoat layer is
(I) Molecular weight having 3 to 6 groups selected from the group consisting of —NCO group and —NHCOX ¹ group (X ¹ is a group represented by any one of the following formulas (1) to (7)) (In the case of having -NHCOX ¹ group, it is a molecular weight calculated by removing X ¹ group.) Is an isocyanate compound of 200-1300,
(Ii) the following formula (B) resin having a structural units in which the majorIncr indicated by, and (iii) a compound represented by the following formula (A1), the compound represented by the following formula (A2), represented by the following formula (A3) A compound represented by the following formula (A4), a compound represented by the following formula (A5), a compound represented by the following formula (A6), a compound represented by the following formula (A7), and a compound represented by the following formula (A8). And a polymer of a composition containing at least one compound selected from the group consisting of the above compounds.

Claims

In an electrophotographic photoreceptor having a support, an undercoat layer formed on the support, and a photosensitive layer formed on the undercoat layer,
The undercoat layer is
(I) Molecular weight having 3 to 6 groups selected from the group consisting of —NCO group and —NHCOX ¹ group (X ¹ is a group represented by any one of the following formulas (1) to (7)) (In the case of having -NHCOX ¹ group, it is a molecular weight calculated by removing X ¹ group.) Is an isocyanate compound of 200-1300,
(Ii) the following formula (B) resin having a structural units in which the majorIncr indicated by, and (iii) a compound represented by the following formula (A1), the compound represented by the following formula (A2), represented by the following formula (A3) A compound represented by the following formula (A4), a compound represented by the following formula (A5), a compound represented by the following formula (A6), a compound represented by the following formula (A7), and a compound represented by the following formula (A8). At least one electron transport material selected from the group consisting of:
An electrophotographic photosensitive member comprising a polymer of a composition comprising:

(In formula (B), R ¹¹ represents a hydrogen atom or an alkyl group. Y represents a single bond or a phenylene group. W ¹ represents a hydroxy group, a thiol group, an amino group, or a carboxyl group.)

(Formula (A1) ~ (A8) ^{^{^{^{in, R 101 ~R 106, R 201}}}} ~R 210, R 301 ~R 308, R 401 ~R 408, R 501 ~R 510, R 601 ~R 606, R 701 ~ R ⁷⁰⁸ and R ^{801 to} R ⁸¹⁰ are each independently a monovalent group represented by the following formula (A), a hydrogen atom, a cyano group, a nitro group, a halogen atom, an alkoxycarbonyl group, a substituted or unsubstituted alkyl Group, substituted or unsubstituted aryl group, substituted or unsubstituted heterocyclic group, provided that at least one of R ^{101 to} R ¹⁰⁶ , at least one of R ^{201 to} R ²¹⁰ , and at least one of R ^{301 to} R ³⁰⁸ 1, at least one of R ^{401 to} R ⁴⁰⁸ , at least one of R ^{501 to} R ⁵¹⁰ , at least one of R ^{601 to} R ⁶⁰⁶ , At least one of R ^{701 to} R ⁷⁰⁸ and at least one of R ^{801 to} R ⁸¹⁰ is a monovalent group represented by the following formula (A): one of the carbon atoms of the alkyl group is O, S, NH, NR ⁹⁰¹ (R ⁹⁰¹ is an alkyl group) may be replaced with a group selected from the group consisting of an alkyl group, an aryl group, an alkoxycarbonyl group and a halogen atom. The substituent of the substituted aryl group is a group selected from the group consisting of a halogen atom, a nitro group, a cyano group, an alkyl group, and a halogen group-substituted alkyl group: Z ²⁰¹ , Z ³⁰¹ , Z ⁴⁰¹ and Z ⁵⁰¹ are each independently if ^{.Z 201} showing a carbon atom, a nitrogen atom or oxygen atom, is an oxygen atom absent ^{R 209} and ^{R 210,} ²⁰¹ is not present is ^{R 307} and ^{R 308} when a ^{.Z 301} is oxygen ^{atom R 210} is absent when a nitrogen ^atom, ^.Z if ^{Z 301} is a nitrogen atom ^{R 308} is absent ⁴⁰¹ there absent ^{R 407} and ^{R 408} when an oxygen ^atom, if ^{Z 401} is a nitrogen atom if ^{.Z 501} not present ^{R 408} is an oxygen atom absent ^{R 509} and ^{R 510} In the case where Z ⁵⁰¹ is a nitrogen atom, R ⁵¹⁰ is not present.)

(In Formula (A), at least one of α, β, and γ is a group having a substituent, and the substituent is selected from the group consisting of a hydroxy group, a thiol group, an amino group, and a carboxyl group. At least one group, l and m are each independently 0 or 1, and the sum of l and m is 0 or more and 2 or less.
α is an alkylene group having 1-6 atoms in the main chain, an alkylene group having 1-6 atoms in the main chain substituted with an alkyl group having 1-6 carbon atoms, or a main chain substituted with a benzyl group. An alkylene group having 1 to 6 atoms, an alkylene group having 1 to 6 atoms in the main chain substituted with an alkoxycarbonyl group, or an alkylene group having 1 to 6 atoms in the main chain substituted with a phenyl group These groups may have at least one group selected from the group consisting of a hydroxy group, a thiol group, an amino group, and a carboxyl group as a substituent. One of the carbon atoms in the main chain of the alkylene group may be replaced by O or S or NH or NR ¹⁹ (R ¹⁹ is an alkyl group).
β represents a phenylene group, an alkyl group-substituted phenylene group having 1 to 6 carbon atoms, a nitro group-substituted phenylene group, a halogen group-substituted phenylene group, or an alkoxy group-substituted phenylene group, and these groups are hydroxy groups as substituents , At least one group selected from the group consisting of a thiol group, an amino group, and a carboxyl group.
γ represents a hydrogen atom, an alkyl group having 1 to 6 atoms in the main chain, or an alkyl group having 1 to 6 atoms in the main chain substituted with an alkyl group having 1 to 6 carbon atoms. May have at least one group selected from the group consisting of a hydroxy group, a thiol group, an amino group, and a carboxyl group as a substituent. )

Formula (B) a resin having a structural units in which the majorIncr indicated in the electrophotographic photosensitive member according to claim 1, any one of 4, which is a polyvinyl acetal resin.

A method for producing the electrophotographic photosensitive member according to any one of claims 1 to 7,
The manufacturing method comprises:
The isocyanate compound to form a coating film of the undercoat layer coating liquid containing the resin, and the electron-transporting material having a structure units in which the majorIncr shown by the formula (B), and thereby the coating film is heated and dried A process for forming the undercoat layer by the method.