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    • 20. 发明授权
    • Disazo compounds derived from 3,6-bis(styryl)-9-ethylcarbazole
    • 衍生自3,6-双(苯乙烯基)-9-乙基咔唑的双偶氮化合物
    • US4293492A
    • 1981-10-06
    • US152061
    • 1980-05-20
    • Masaomi SasakiKiyoshi SakaiMitsuru HashimotoMasafumi OhtaKyoji Tsutsui
    • Masaomi SasakiKiyoshi SakaiMitsuru HashimotoMasafumi OhtaKyoji Tsutsui
    • C09B35/34G03G5/06C09B35/24
    • C09B35/34G03G5/0683G03G5/0685
    • The present invention provides disazo compounds expressed by the general formula: ##STR1## [wherein A represents a member selected from the group consisting of ##STR2## (wherein X represents a member selected from the group consisting of aromatic rings such as benzene ring, naphthalene ring, etc., hetero rings such as indole ring, carbazole ring, benzofuran ring, etc. and their substituents, Ar.sub.1 represents a member selected from the group consisting of aromatic rings such as benzene ring, naphthalene ring, etc., hetero rings such as dibenzofuran ring, etc. and their substituents, Ar.sub.2 and Ar.sub.3 represent a member selected from the group consisting of aromatic rings such as benzene ring, naphthalene ring, etc. and their substituents, R.sub.1 and R.sub.3 represent a member selected from the group consisting of hydrogen, lower alkyl radical or phenyl radical and their substituents and R.sub.2 represents a member selected from the group consisting of lower alkyl radical, carboxyl radical and their esters)]; 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 said disazo compound as an effective ingredient.
    • 本发明提供由以下通式表示的双偶氮化合物:其中A表示选自下列的成员:其中X表示选自以下的成员:芳环如 苯环,萘环等杂环,吲哚环,咔唑环,苯并呋喃环等杂原子及其取代基,Ar 1表示选自苯环,萘环等芳香环的成员 ,诸如二苯并呋喃环等杂环及其取代基,Ar2和Ar3表示选自芳环如苯环,萘环等的基团及其取代基,R 1和R 3表示选自 由氢,低级烷基或苯基组成的组和它们的取代基,R 2表示选自低级烷基,羧基和 酯)]; 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,所述感光层含有所述双偶氮化合物作为有效成分。