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    • 1. 发明授权
    • Electrophotographic photoreceptor containing a trisazo compound
    • 含有三偶氮化合物的电子照相感光体
    • US4687721A
    • 1987-08-18
    • US905450
    • 1986-09-10
    • Kazuhiro EmotoAkira ItohKozo Haino
    • Kazuhiro EmotoAkira ItohKozo Haino
    • C09B35/023C09B35/378G03G5/06G03G5/14
    • G03G5/0681C09B35/023C09B35/378G03G5/0688
    • There is disclosed an electrophotographic photoreceptor comprising an electroconductive support and, provided thereon, a photosensitive layer containing (A) a trisazo pigment formed by the reaction between a coupler component represented by the following general formula (I) and a diazonium salt represented by the following general formula (II) or (B) a bisazo pigment represented by the following general formula (III): ##STR1## wherein Z is a substituted or unsubstituted hydrocarbon ring or a group of atoms necessary to complete a substituted or unsubstituted hetero ring, R is oxygen, sulfur, or --NR'--, Y is a chain hydrocarbon necessary to complete a 5- or 6-membered ring, and R' is hydrogen or an alkyl, benzyl, or aryl group which may have a substituent; ##STR2## wherein A is a trivalent moiety whose carbon atom is bonded to nitrogen atom forming azo group and X.crclbar. is an anionic functional group; ##STR3## wherein A is a divalent moiety whose carbon atom is bonded to nitrogen atom forming azo group, R's which may be the same or different are each hydrogen, methyl, ethyl, nitro, or halogen, R' is hydrogen or halogen, X is --O--, --S--, or --NH--, and a is an integer of 1 or 2.
    • 公开了一种电子照相感光体,其包含导电性支持体,并且在其上设置感光层,感光层含有(A)由下述通式(I)表示的成色剂成分与下述通式(I)表示的重氮盐之间的反应形成的三偶氮颜料 通式(II)或(B)由以下通式(III)表示的双偶氮颜料:其中Z是取代或未取代的烃环或完成取代或未取代杂原子所必需的原子团 环,R是氧,硫或-NR'-,Y是完成5-或6-元环所必需的链烃,R'是氢或可具有取代基的烷基,苄基或芳基 ; (II)其中A是其碳原子与形成氮原子的氮原子键合的三价部分,X( - )是阴离子官能团; 其中A是碳原子与形成氮原子的氮原子连接的二价部分,R可相同或不同,分别为氢,甲基,乙基,硝基或卤素,R' 是氢或卤素,X是-O - , - S-或-NH-,a是1或2的整数。
    • 2. 发明授权
    • Bisazo electrophotographic sensitive materials with --CF.sub.3 group
    • US4631242A
    • 1986-12-23
    • US772878
    • 1985-09-05
    • Kazuhiro EmotoKozo HainoAkira Itoh
    • Kazuhiro EmotoKozo HainoAkira Itoh
    • G03G5/06G03G5/14
    • G03G5/0681G03G5/0679
    • An electrophotographic material comprises a conductive support and a light-sensitive layer containing at least one of the azo compound of the formulas [I]-[III]: formula [I]:Cp.sub.1 --N.dbd.N--A--N.dbd.N--Cp.sub.2 A represents a divalent residue which bonds through C atoms to N atoms which constitute azo and Cp.sub.1 is a group of by the formula: ##STR1## Z represents a substituted or unsubstituted carbocyclic aromatic ring, a substituted or unsubstituted heterocyclic aromatic ring or a unsaturated monocyclic hydrocarbon ring and R represents an aryl group containing one or two CF.sub.3 groups and Cp.sub.2 is a coupler residue different from said Cp.sub.1 and is selected from following formulas (a)-(f): ##STR2## Z.sup.1 and Z.sup.2 represent a substituted or unsubstituted aromatic hydrocarbon ring or substituted or unsubstituted hetero ring, R.sup.1 and R.sup.2 represent substituted or unsubstituted alkyl, aralkyl, aryl or hetero ring group, R.sup.3 represents an alkyl or carboxyl group or an ester thereof, R.sup.4 and R.sup.6 represent substituted or unsubstituted aryl or hetero ring group and R.sup.5 represents H, a substituted or unsubstituted alkyl, aralkyl, aryl or hetero ring group and Y.sup.1 and Y.sup.2 represent --NR.sup.7 R.sup.8, --OR.sup.9, --NHN.dbd.CH--R.sup.10 or --NHNR.sup.11 R.sup.12 wherein R.sup.7, R.sup.8, R.sup.9, R.sup.11 and R.sup.12 represent H, substituted or unsubstituted alkyl, aralkyl, aryl or hetero ring group and R.sup.10 represents a substituted or unsubstituted aryl or hetero ring group. formula (II): ##STR3## X represents H, a halogen atom, a lower alkyl group, methoxy group or nitro group and Y represents an aromatic ring or hetero ring which may be substituted. formula (III): ##STR4## A represents a divalent residue which bonds through C atoms to N atoms which constitute azo and Z represents a substituted or unsubstituted carbocyclic aromatic ring, a substituted or unsubstituted heterocyclic aromatic ring or unsaturated monocyclic hydrocarbon ring.
    • 6. 发明授权
    • Electrophotographic photoreceptor comprising bis-azo pigment
    • 包含双偶氮颜料的电子照相感光体
    • US4702983A
    • 1987-10-27
    • US4494
    • 1987-01-20
    • Kozo HainoKazuhiro EmotoAkira Itoh
    • Kozo HainoKazuhiro EmotoAkira Itoh
    • G03G5/06G03G5/14
    • G03G5/0679G03G5/0681G03G5/0685
    • An electrophotographic photoreceptor excellent in properties after repeated use and durability is provided by containing a bis-azo pigment represented by the following general formula [I] or [II] in the light-sensitive layer on the conductive support: ##STR1## wherein X represents --O--, --S--or >N--R.sub.4 wherein R.sub.4 represents a hydrogen atom, an alkyl group or an aralkyl group, R.sub.1, R.sub.2 and R.sub.3 each represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group or a group of atoms necessary to form a condensed ring by combination of two or them, Y.sub.1 and Y.sub.2 each represent a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, A represents a coupler residue necessary to produce an azo pigment and n is 0 or 1; ##STR2## wherein Y.sub.1 and Y.sub.2 each represent a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, R.sub.1 and R.sub.2 each represent a hydrogen atom, an alkyl group, an alkoxy group or a group of atoms necessary to form a condensed ring by combination of them, A represents a coupler residue necessary to produce an azo pigment and n is 0 or 1.
    • 通过在导电性支持体的感光层中含有下述通式[I]或[II]表示的双偶氮颜料,提供反复使用性和耐久性优异的电子照相感光体。 其中X表示-O - , - S-或> N-R4,其中R4表示氢原子,烷基或芳烷基,R1,R2和R3各自表示氢原子,烷基,烷氧基, 芳基或通过两个或它们的组合形成稠环所必需的一组原子,Y1和Y2各自表示氢原子,卤素原子,烷基或烷氧基,A表示生成 偶氮颜料,n为0或1; 其中Y1和Y2各自表示氢原子,卤原子,烷基或烷氧基,R1和R2各自表示氢原子,烷基,烷氧基或必要的原子团 通过它们的组合形成稠环,A代表产生偶氮颜料所必需的成色剂残基,n为0或1。
    • 10. 发明授权
    • Trisazo electrophotographic photoconductive material
    • Trisazo电子照相感光材料
    • US4600674A
    • 1986-07-15
    • US748398
    • 1985-06-24
    • Kazuhiro EmotoAkira Itoh
    • Kazuhiro EmotoAkira Itoh
    • C09B35/378G03G5/06
    • G03G5/069C09B35/378G03G5/0687G03G5/0688G03G5/0692
    • Disclosed is an electrophotographic photoconductive material excellent in sensitivity and durability which comprises an electroconductive substrate and, provided thereon, a photosensitive layer containing a trisazo pigment represented by the general formula ##STR1## wherein R's, which may be the same or different, represent each a hydrogen atom, halogen atom, substituted or unsubstituted alkyl group, alkoxyl group, or nitrile group; n is an integer of 1 or 2; and A represents ##STR2## wherein Z represents a group of atoms necessary to complete a substituted or unsubstituted aromatic carbon ring or a substituted or unsubstituted aromatic hetero-ring; X represents a hydrogen atom, an alkyl group, or a group of atoms necessary to complete a substituted or unsubstituted aromatic carbon ring, a substituted or unsubstituted aromatic hetero ring, or a substituted or unsubstituted hetero ring; m is 0 or 1; B represents a group of atoms necessary to complete a substituted or unsubstituted aromatic carbon ring, a substituted or unsubstituted aromatic hetero ring, or a substituted or unsubstituted monocyclic hetero ring; Y represents a hydrogen atom, hydroxyl group, carboxyl group or an ester thereof, sulfo group, substituted or unsubstituted carbamoyl group, or substituted or unsubstituted sulfamoyl group; R.sub.1 represents a hydrogen atom, substituted or unsubstituted alkyl group, substituted or unsubstituted amino group, substituted or unsubstituted carbamoyl group, carboxyl group or an ester thereof, or cyano group; Ar represents a substituted or unsubstituted aryl group; and R.sub.2 represents a substituted or unsubstituted alkyl group, substituted or unsubstituted aralkyl group, or substituted or unsubstituted aryl group.
    • 公开了一种敏感性和耐久性优异的电子照相感光材料,其包含导电性基材,并且在其上设置含有通式(I)[I]表示的三偶氮颜料的感光层,其中R可以相同或不同, 代表氢原子,卤素原子,取代或未取代的烷基,烷氧基或腈基; n为1或2的整数; A表示 其中Z表示完成取代或未取代的芳族碳环或取代或未取代的芳族杂环所必需的原子团; X表示完成取代或未取代的芳族碳环所需的氢原子,烷基或原子团,取代或未取代的芳族杂环或取代或未取代的杂环; m为0或1; B表示完成取代或未取代的芳族碳环,取代或未取代的芳族杂环或取代或未取代的单环杂环所必需的一组原子; Y表示氢原子,羟基,羧基或其酯,磺基,取代或未取代的氨基甲酰基或取代或未取代的氨磺酰基; R 1表示氢原子,取代或未取代的烷基,取代或未取代的氨基,取代或未取代的氨基甲酰基,羧基或其酯或氰基; Ar表示取代或未取代的芳基; 并且R 2表示取代或未取代的烷基,取代或未取代的芳烷基或取代或未取代的芳基。