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    • 15. 发明授权
    • Electrophotographic elements containing trisazo compounds
    • 含有三偶氮化合物的电子照相元件
    • US4279981A
    • 1981-07-21
    • US897508
    • 1978-04-18
    • Masafumi OhtaKiyoshi SakaiMitsuru HashimotoAkio KozimaMasaomi Sasaki
    • Masafumi OhtaKiyoshi SakaiMitsuru HashimotoAkio KozimaMasaomi Sasaki
    • C09B35/378G03G5/06
    • G03G5/0687C09B35/378
    • The present invention provides trisazo compounds expressed by the general formula I ##STR1## [wherein A represents ##STR2## (wherein R represents hydrogen, alkyl radical, alkoxy radical, nitro radical, dialkylamino radical or halogen, and n is an integer of 1, 2 or 3, R may be either identical or different when n is an integer of 2 or 3)]; a process for the preparation of said trisazo compounds; and electrophotographic sensitive materials having a high sensitivity as well as a high flexibility which comprise a conductive support and a photosensitive layer containing a trisazo compound, as an effective ingredient thereof, which is expressed by the general formula II ##STR3## [wherein A' represents ##STR4## (wherein Z represents aromatic rings such as benzene ring, naphthalene ring, etc., hetero rings such as indole ring, carbazole ring, benzofuran ring, etc. or their substituents, Ar.sub.1 represents aromatic rings such as benzene ring, naphthalene ring, etc., hetero rings such as dibenzofuran ring, etc. or their substituents, Ar.sub.2 and Ar.sub.3 represent aromatic rings such as benzene ring, naphthalene ring, etc. or their substituents, R.sub.1 and R.sub.3 represent hydrogen, lower alkyl radical, phenyl radical or their substituents, and R.sub.2 represents lower alkyl radical, carboxyl radical or their esters)].
    • 本发明提供由通式I表示的三偶氮化合物,其中A代表氢,烷基,烷氧基,硝基,二烷基氨基 或卤素,n为1,2或3的整数,当n为2或3的整数时,R可以相同或不同)。 一种制备所述三偶氮化合物的方法; 和具有高灵敏度的电子照相感光材料以及包含导电性支持体和含有三偶氮化合物的感光层作为其有效成分的高柔性,其由通式II表示[其中A'表示 (其中Z表示芳环如苯环,萘环等,杂环如吲哚环,咔唑环,苯并呋喃环等)或其取代基,Ar1表示芳环如苯环,萘环 等等,杂环如二苯并呋喃环等或其取代基,Ar 2和Ar 3表示芳环如苯环,萘环等或其取代基,R 1和R 3表示氢,低级烷基,苯基或 它们的取代基,R 2代表低级烷基,羧基或它们的酯)]。
    • 16. 发明授权
    • Electrophotographic material containing disazo compounds
    • 含有双偶氮化合物的电子照相材料
    • US4272598A
    • 1981-06-09
    • US898130
    • 1978-04-20
    • Masaomi SasakiKiyoshi SakaiMitsuru HashimotoMasafumi OhtaAkio Kozima
    • Masaomi SasakiKiyoshi SakaiMitsuru HashimotoMasafumi OhtaAkio Kozima
    • C09B35/215C09B56/06G03G5/06G03G13/22
    • G03G5/0683C09B35/215C09B56/06
    • The present invention provides disazo compounds expressed by the general formula I ##STR1## [wherein A represents ##STR2## (wherein R represents alkyl radical, alkoxy radical, nitro radical, dialkylamino radical or halogen, n is 0 or an integer of 1, 2 or 3, and R may be either identical or different when n is an integer of 2 or 3)]; a process for the preparation of said compounds; and electrophotographic sensitive materials having a high sensitivity as well as a high flexibility which comprise a conductive support and a photosensitive layer formed thereon, said photosensitive layer containing a disazo compound, as an effective ingredient, which is expressed by the general formula II ##STR3## [wherein A' represents ##STR4## (wherein X represents aromatic rings such as benzene ring, naphthalene ring, etc., hetero rings such as indole ring, carbazole ring, benzofuran ring, etc. or their substituents, Ar.sub.1 represents aromatic rings such as benzene ring, naphthalene ring, etc., hetero rings such as dibenzofuran, etc. or their substituents, Ar.sub.2 and Ar.sub.3 represent aromatic rings such as benzene ring, naphthalene ring, etc. or their substituents, R.sub.1 and R.sub.3 represent respectively hydrogen, lower alkyl radical, phenyl radical or their substituents, and R.sub.2 represents lower alkyl radical, carboxyl radical or their esters)].
    • 本发明提供由通式I表示的双偶氮化合物[其中A表示(其中R表示烷基,烷氧基,硝基,二烷基氨基或卤素,n为0或 1或2或3的整数,当n为2或3的整数时,R可以相同或不同)。 一种制备所述化合物的方法; 和具有高灵敏度的电子照相感光材料以及包含导电性支持体和形成在其上的感光层的高柔性,所述感光层含有双偶氮化合物作为有效成分,其由通式II表示。 + TR 其中A'表示 + TR (其中X表示芳环如苯环,萘环等,杂环如吲哚环,咔唑环,苯并呋喃环等 或它们的取代基,Ar 1表示芳环如苯环,萘环等,杂环如二苯并呋喃等或其取代基,Ar2和Ar3表示芳环如苯环,萘环等或其取代基 ,R1和R3分别代表氢,低级烷基,苯基或它们的取代基,R2代表低级烷基,羧基或它们的酯)]。
    • 18. 发明授权
    • Electrophotographic element having charge transport layer
    • 具有电荷传输层的电子照相元件
    • US4245021A
    • 1981-01-13
    • US11063
    • 1979-02-12
    • Takeo KazamiKiyoshi SakaiMitsuru HashimotoMasaomi SasakiKyoji TsutsuiMasafumi Ohta
    • Takeo KazamiKiyoshi SakaiMitsuru HashimotoMasaomi SasakiKyoji TsutsuiMasafumi Ohta
    • G03G5/06G03G5/09
    • G03G5/0605G03G5/0668Y10S430/10
    • An electrophotographic element according to the present invention exhibits an exceedingly high sensitivity and it comprises (1) an electroconductive support, a charge producing layer consisting essentially of a charge producing substance and a charge transport layer consisting essentially of a charge transport substance having the following general formula and a binder, the last-mentioned two layers being superposed in that order or vice versa on said support, or (2) an electroconductive support and a photosensitive layer, superposed thereon, and consisting essentially of a charge producing substance, a charge transport substance having said general formula and a binder: ##STR1## (wherein n is an integer of 1 or 2, R.sub.1 stands for hydrogen atom or an alkyl, nitro, dialkylamino, alkoxy, nitrile or carboxylic ester group, and R.sub.2 and R.sub.3 stand for hydrogen or halogen atom or nitro or dialkylamino group respectively).
    • 根据本发明的电子照相元件显示出非常高的灵敏度,并且其包括(1)导电载体,基本上由电荷产生物质组成的电荷产生层和基本上由电荷输送物质组成的电荷输送层,其具有以下通用 配方和粘合剂,所述最后提到的两层在所述载体上以该顺序重叠,反之亦然;或(2)导电载体和感光层,叠加在其上,并基本上由电荷产生物质组成,电荷传输 具有所述通式的物质和粘合剂:其中n是1或2的整数,R1代表氢原子或烷基,硝基,二烷基氨基,烷氧基,腈或羧酸酯基,R2和R3代表 氢或卤素原子或硝基或二烷基氨基)。