JP2000241999A5 - - Google Patents

Description

（式（１）中、Ｒ^１は水素原子、ハロゲン原子、置換もしくは無置換のアルキル基、置換もしくは無置換のアリール基及び置換もしくは無置換のアルケニル基から選ばれるいずれかを示し、Ｒ^２は水酸基を有するアルキル基を示し、Ｒ^３ 〜Ｒ^１０は水素原子、ハロゲン原子、置換もしくは無置換のアルキル基、置換もしくは無置換のアリール基、置換もしくは無置換のアルケニル基、置換もしくは無置換のアルコキシ基及び置換もしくは無置換のアラルキル基から選ばれるいずれかを示す。）
【請求項２】 前記式（１）で示される構成単位が２，２−ビス（４−ヒドロキシフェニル）プロパノールから誘導されたものである請求項１に記載の電子写真感光体。
【請求項３】 前記ポリカーボネート樹脂が更に下記式（３）で示される構成単位を有する共重合ポリカーボネート樹脂である請求項１または２に記載の電子写真感光体。
式（３）
【化２】

（式（３）中、Ｒ^１１〜^１８は水素原子、ハロゲン原子、置換もしくは無置換のアルキル基、置換もしくは無置換のアリール基、置換もしくは無置換のアルケニル基、置換もしくは無置換のアルコキシ基及び置換もしくは無置換のアラルキル基から選ばれるいずれかを示す。）
【請求項４】 前記式（３）で示される構成単位が９，９−ビス（４−ヒドロキシ−３−メチルフェニル）フルオレンから誘導されたものである請求項３に記載の電子写真感光体。
【請求項５】 前記表面層が更に下記式（３）で示される構成単位を有するポリカーボネート樹脂を含有する請求項１〜４のいずれかに記載の電子写真感光体。
式（３）
【化３】

（式（３）中、Ｒ^１１〜^１８は水素原子、ハロゲン原子、置換もしくは無置換のアルキル基、置換もしくは無置換のアリール基、置換もしくは無置換のアルケニル基、置換もしくは無置換のアルコキシ基及び置換もしくは無置換のアラルキル基から選ばれるいずれかを示す。）
【請求項６】 前記式（３）で示される構成単位が９，９−ビス（４−ヒドロキシ−３−メチルフェニル）フルオレノンから誘導されたものである請求項５記載の電子写真感光体。
【請求項７】 請求項１〜６のいずれかに記載の電子写真感光体と、帯電手段、現像手段、クリーニング手段からなる群から選ばれる少なくとも一つの手段とを一体に支持し、電子写真装置本体に着脱自在であることを特徴とするプロセスカートリッジ。
【請求項８】 請求項１〜６のいずれかに記載の電子写真感光体、帯電手段、露光手段、現像手段及び転写手段を有することを特徴とする電子写真装置。 [Claims]
    (1) The support and theOn the supportProvidedAn electrophotographic photoconductor having a photosensitive layer, wherein the surface layer of the electrophotographic photoconductor contains a polycarbonate resin having a structural unit represented by the following formula (1).
Equation (1)
Embedded image

(formula(1)Medium, R¹Is a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted alkenyl groupAny selected fromAnd R²Represents an alkyl group having a hydroxyl group;³ ~R¹⁰Is a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkoxy group, and a substituted or unsubstituted aralkyl groupAny selected fromIs shown. )
    (2) SaidThe structural unit represented by the formula (1) is derived from 2,2-bis (4-hydroxyphenyl) propanol.ToThe electrophotographic photosensitive member according to the above.
    (3) Said3. A polycarbonate resin having a structural unit represented by the following formula (3):ToThe electrophotographic photosensitive member according to the above.
Equation (3)
Embedded image

(formula(3)Medium, R¹¹~¹⁸Is a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkoxy group, and a substituted or unsubstituted aralkyl groupAny selected fromIs shown. )
    (4) SaidThe structural unit represented by the formula (3) is derived from 9,9-bis (4-hydroxy-3-methylphenyl) fluorene.ToThe electrophotographic photosensitive member according to the above.
    Claim 5. SaidThe surface layer further contains a polycarbonate resin having a structural unit represented by the following formula (3):~5. The electrophotographic photosensitive member according to any one of 4.
Equation (3)
Embedded image

(formula(3)Medium, R¹¹~¹⁸Is a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkoxy group, and a substituted or unsubstituted aralkyl groupAny selected fromIs shown. )
    6. SaidThe electrophotographic photosensitive member according to claim 5, wherein the structural unit represented by the formula (3) is derived from 9,9-bis (4-hydroxy-3-methylphenyl) fluorenone.
    7. The method according to claim 1,~6. The electrophotographic photosensitive member according to any one of 6.When,At least one unit selected from the group consisting of a charging unit, a developing unit, and a cleaning unitWhenCharacterized by being integrally supported and detachable from the electrophotographic apparatus main body.
    8. The method according to claim 1,~An electrophotographic apparatus, comprising: the electrophotographic photoreceptor according to any one of the preceding items 6, a charging unit, an exposing unit, a developing unit, and a transferring unit.

（式（１）中、Ｒ^１は水素原子、ハロゲン原子、置換もしくは無置換のアルキル基、置換もしくは無置換のアリール基及び置換もしくは無置換のアルケニル基から選ばれるいずれかを示し、Ｒ２は水酸基を有するアルキル基を示し、Ｒ^３ 〜Ｒ^１０は水素原子、ハロゲン原子、置換もしくは無置換のアルキル基、置換もしくは無置換のアリール基、置換もしくは無置換のアルケニル基、置換もしくは無置換のアルコキシ基及び置換もしくは無置換のアラルキル基から選ばれるいずれかを示す。） [0013]
[Means for Solving the Problems]
The present invention relates to an electrophotographic photosensitive member having a support and a photosensitive layer provided on the support, wherein the surface layer of the electrophotographic photosensitive member contains a polycarbonate resin having a structural unit represented by the following formula (1). And an electrophotographic photoreceptor.
Equation (1)
Embedded image

(In Formula (1) , R ¹ represents any one selected from a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted alkenyl group, and R 2 represents a hydroxyl group. Wherein R ³ to R ¹⁰ are a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkoxy group And any one selected from substituted or unsubstituted aralkyl groups.)

Further, the present invention, the electrophotographic photosensitive member of the present invention, charging means, developing means, and the support and at least one means selected from the group consisting of cleaning means integrally, is detachably attached to an electrophotographic apparatus main body And a process cartridge.

（式（２）中、Ｒ^１〜Ｒ^１０はそれぞれ、前記式（１）におけると同義。）
をホスゲン、炭酸エステルあるいはクロロホーメートと反応して得られる。この際、上記ビスフェノールは単独で用いてもよく、また、他のビスフェノールと混合して用いてもよい。 The polycarbonate resin having the structural unit represented by the above formula (1) is a bisphenol compound represented by the following formula (2):

(In the formula (2) , R ^{1 to} R ¹⁰ each have the same meaning as in the formula (1).)
Is reacted with phosgene, carbonate or chloroformate. In this case, the above bisphenol may be used alone, or may be used as a mixture with another bisphenol.

（式（３）中、Ｒ^１１〜^１８は水素原子、ハロゲン原子、置換もしくは無置換のアルキル基、置換もしくは無置換のアリール基、置換もしくは無置換のアルケニル基、置換もしくは無置換のアルコキシ基及び置換もしくは無置換のアラルキル基から選ばれるいずれかを示す。）
式（４）

（式（４）中、Ｒ^１９〜Ｒ^２６は水素原子、ハロゲン原子、置換もしくは無置換のアルキル基、置換もしくは無置換のアリール基、置換もしくは無置換のアルケニル基、置換もしくは無置換のアルコキシ基及び置換もしくは無置換のアラルキル基から選ばれるいずれかを示し、Ｘは

であり、Ｒ^２７及びＲ^２８は、水素原子、ハロゲン原子、置換もしくは無置換のアルキル基、置換もしくは無置換のアリール基、置換もしくは無置換のアルケニル基並びにＲ^２７及びＲ^２８が結合して炭素環または複素環を形成するのに必要な基から選ばれるいずれかを示し、Ｒ^２９〜Ｒ^３２は、水素原子、置換もしくは無置換のアルキル基及び置換もしくは無置換のアリ−ル基から選ばれるいずれかを示し、ａ、ｂ及びｄは０〜２０の整数、ｃは１〜５００の整数を示す。） In the present invention, a copolymer of a structural unit represented by the formula (1) and a structural unit represented by the following formula (3) or / and the following formula (4), particularly from the viewpoint of mechanical durability, Alternatively, a mixture of a polycarbonate having a structural unit represented by the formula (1) and a polycarbonate resin having a structural unit represented by the following formula (3) and / or a polycarbonate resin having a structural unit represented by the following formula (4) is used. Is preferred. Among them, it is particularly preferable to use a copolymer having a structural unit represented by the formula (1) and the following formula (3) in terms of mechanical durability and solubility.
Equation (3)

(In the formula (3) , R ¹¹ to R ¹⁸ represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkoxy group, It represents any one selected from a substituted or unsubstituted aralkyl group.)
Equation (4)

(In the formula (4) , R ^{19 to} R ²⁶ represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkoxy group. And X represents any one selected from a substituted or unsubstituted aralkyl group.

In and, R ²⁷ and R ²⁸ are a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group and carbon bonded is R ²⁷ and R ²⁸ indicates any one selected from the group necessary for forming a heterocyclic or heterocyclic ring, R ²⁹ to R ³² is a hydrogen atom, a substituted or unsubstituted alkyl group and a substituted or unsubstituted ants - selected from Le group A , b, and d are integers of 0 to 20, and c is an integer of 1 to 500. )

（式（５）中、Ｒ^１１〜Ｒ^１８はそれぞれ、前記式（３）におけると同義。）
をホスゲン、炭酸エステルあるいはクロロホーメートと反応して得られる。この際、上記ビスフェノールは単独で用いてもよく、また、他のビスフェノールと混合して用いてもよい。 The polycarbonate resin having the structural unit represented by the above formula (3) is a bisphenol compound represented by the following formula (5):

(In the formula (5) , each of R ^{11 to} R ¹⁸ has the same meaning as in the formula (3).)
Is reacted with phosgene, carbonate or chloroformate. In this case, the above bisphenol may be used alone, or may be used as a mixture with another bisphenol.

（式（６）中、Ｒ^１９〜Ｒ^２６はそれぞれ、前記式（４）におけると同義。）
をホスゲン、炭酸エステルあるいはクロロホーメートと反応して得られる。この際、上記ビスフェノールは単独で用いてもよく、また、他のビスフェノールと混合して用いてもよい。 The polycarbonate resin having the structural unit represented by the above formula (4) is a bisphenol compound represented by the following formula (6):

(In the formula (6) , R ^{19 to} R ²⁶ have the same meanings as in the formula (4), respectively.)
Is reacted with phosgene, carbonate or chloroformate. In this case, the above bisphenol may be used alone, or may be used as a mixture with another bisphenol.