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    • 1. 发明授权
    • Electrophotographic photoreceptor with copolymer binder or interlayer
    • 具有共聚物粘合剂或中间层的电子照相感光体
    • US5154996A
    • 1992-10-13
    • US456623
    • 1989-12-29
    • Naonori MakinoKenji SanoSeiji Horie
    • Naonori MakinoKenji SanoSeiji Horie
    • G03G5/05G03G5/14
    • G03G5/0546G03G5/142
    • An electrophotographic photoreceptor comprising an electro-conductive support having thereon at least one charge-generating layer and at least one charge-transporting layer, wherein said charge-generating layer contains, as a resin binder, a copolymer derived from at least one monomer represented by formula (I) and at least one monomer represented by formula (II) and a charge-generating substance, and wherein said charge-transporting layer is formed on said charge-generating layer by a coating solution containing a charge-transporting substance and a solvent not dissolving said resin binder: ##STR1## wherein R.sup.1 and R.sup.3, which may be the same or different, each represents a hydrogen atom or a methyl group; and R.sup.2 represents an unsubtituted or substituted alkyl group or an unsubstituted or substituted aralkyl group. Because of incorporation of the particular copolymer, the photoreceptor has high sensitivity, little fluctuation of electrophotographic characteristic in repeated use, excellent capacity of forming uniform images, excellent charging property and small residual potential. Specifically, the charge-generating layer is not dissolved out in formation of the charge-transporting layer over the charge-generating layer.
    • 一种电子照相感光体,包括其上具有至少一个电荷产生层和至少一个电荷输送层的导电载体,其中所述电荷产生层含有作为树脂粘合剂的衍生自至少一种由 式(I)和至少一种由式(II)表示的单体和电荷产生物质,并且其中所述电荷输送层通过包含电荷输送物质和溶剂的涂布溶液在所述电荷产生层上形成 不溶解所述树脂粘合剂:其中R 1和R 3可以相同或不同,各自表示氢原子或甲基;(I) 并且R 2表示未取代或取代的烷基或未取代或取代的芳烷基。 由于结合了特定的共聚物,感光体具有高灵敏度,反复使用中的电子照相特性波动小,形成均匀图像的优异容量,优异的充电性能和较小的残留电位。 具体地说,在电荷产生层上形成电荷输送层时,电荷产生层不溶解。
    • 2. 发明授权
    • Light-sensitive composition having a tetrakisazo compound
    • 具有四偶氮化合物的感光性组合物
    • US4629672A
    • 1986-12-16
    • US797553
    • 1985-11-13
    • Naonori MakinoKenji SanoSeiji HorieHideo Sato
    • Naonori MakinoKenji SanoSeiji HorieHideo Sato
    • B41M5/26C09B35/50C09B35/64C09B56/16G03G5/06G11B7/244H01L31/08H01L51/42G03G5/14
    • C09B35/50C09B56/16G03G5/0688
    • A light-sensitive composition is disclosed, containing at least one of tetrakisazo compounds having the following general formula [1]: ##STR1## wherein Cp represents a coupler residue; A is a single bond, ##STR2## in which n is an integer of from 1 to 3, or a divalent aromatic organic residue, and B.sup.1 and B.sup.2 each represents a hydrogen atom or an electron attractive group; Z represents ##STR3## --O--, --S-- or --Se--, in which R.sup.6 represents a hydrogen atom, a substituted or unsubstituted lower alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxycarbonyl group, a substituted or unsubstituted aryloxycarbonyl group or a substituted or unsubstituted acyl group; and Ar represents a substituted or unsubstituted divalent aromatic carbon ring group, or a substituted or unsubstituted divalent heterocyclic aromatic ring group.An electrophotographic light-sensitive material is also disclosed, comprising an electrically conductive support and a layer containing an electric charge carrier transporting compound and the tetrakisazo compound as an electric charge carrier generating compound.An electrophotographic light-sensitive material is further disclosed, comprising an electrically conductive support, an electric charge carrier transporting layer containing an electric charge carrier transporting compound, and an electric charge carrier generating layer containing the tetrakisazo compound.
    • 公开了含有下列通式[1]的四偶氮化合物中的至少一种的感光性组合物:其中Cp表示成色剂残基; A是单键,其中n是1〜3的整数,或二价芳香族有机残基,B1和B2各自表示氢原子或吸电子基团。 Z表示-O-,-S-或-Se-,其中R6表示氢原子,取代或未取代的低级烷基,取代或未取代的芳基,取代或未取代的烷氧基羰基,取代或未取代的烷氧基羰基, 未取代的芳氧基羰基或取代或未取代的酰基; Ar表示取代或未取代的二价芳香族碳环基或取代或未取代的二价杂环芳香族环基。 还公开了电子照相感光材料,其包括导电载体和含有电荷载流子传输化合物的层和作为电荷载体产生化合物的四偶氮化合物。 还公开了一种电子照相感光材料,其包括导电载体,含有电荷载流子传输化合物的电荷载流子传输层和含有四偶氮化合物的电荷载体产生层。
    • 7. 发明授权
    • Photoconductive composition and electro-photographic light-sensitive
material containing a trisazo compound
    • US4619881A
    • 1986-10-28
    • US703968
    • 1985-02-21
    • Naonori MakinoSeiji HorieHideo Sato
    • Naonori MakinoSeiji HorieHideo Sato
    • C09B35/378G03G5/043G03G5/06
    • C09B35/378G03G5/0688
    • A photoconductive composition is disclosed, containing at least one trisazo compound represented by the following general formula (1): ##STR1## wherein Z represents ##STR2## R.sup.6 represents a hydrogen atom, a lower alkyl group, an aryl group, an aryloxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyl group, or a substituted group of them; As', which may be the same or different, each represents ##STR3## B.sup.1, B.sup.2 and B.sup.3 each represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or a substituted lower alkyl group or lower alkoxy group, and B.sup.1, B.sup.2 and B.sup.3 may be identical or different; X represents an atomic group necessary to form an aromatic ring or heterocyclic ring, which may be substituted or unsubstituted, by condensing with the benzene ring to which the hydroxyl group and Y are bonded; Y represents ##STR4## R.sup.1 represents an alkyl group, a phenyl group or a substituted alkyl or phenyl group; R.sup.2 represents a hydrogen atom, a lower alkyl group, a carbamoyl group, a carboxyl group, an alkoxycarbonyl group, an aryloxycarbonyl group or a substituted or unsubstituted amino group; R.sup.3 represents an alkyl group, an aromatic group or a heteroaromatic group or a substituted alkyl group, aromatic group or heteroaromatic group; and R.sup.4 and R.sup.5, which may be the same or different, each represents a hydrogen atom, an alkyl group, an aromatic group, a heteroaromatic group or a substituted alkyl group, aromatic group or heteroaromatic group, provided that R.sup.4 and R.sup.5 are not both hydrogen atoms, and R.sup.5 is not a hydrogen atom when Y is ##STR5## . An electrophotographic light-sensitive material is also disclosed, comprising an electrically conductive base and a layer containing an electric charge carrier transport compound and the trisazo compound as an electric charge carrier generating compound.