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    • 11. 发明授权
    • Electrophotographic elements containing disazo compounds
    • 含有双偶氮化合物的电子照相元件
    • US4293628A
    • 1981-10-06
    • US872679
    • 1978-01-26
    • Mitsuru HashimotoMasafumi OhtaAkio KozimaKiyoshi SakaiMasaomi Sasaki
    • Mitsuru HashimotoMasafumi OhtaAkio KozimaKiyoshi SakaiMasaomi Sasaki
    • C09B35/34G03G5/06
    • C09B35/34G03G5/0681
    • The present invention provides disazo compounds expressed by the general formula ##STR1## [wherein A represents ##STR2## (wherein R represents alkyl radical, alkoxy radical, nitro radical, dialkylamino radical or halogen, n is 0 or an integer ranging from 1 to 3, and R may be identical or different when n is an integer of 2 or 3)]; a process for the preparation of said compounds; and photosensitive materials having a high sensitivity as well as a high flexibility which comprises a conductive support and a photosensitive layer formed thereon, said photosensitive layer containing a disazo pigment, as an effective ingredient, which is expressed by the general formula ##STR3## [wherein R' represents a member selected from the group consisting of hydrogen, ethyl radical, chloroethyl radical and hydroxyethyl radical, A' represents a member selected from the group consisting of ##STR4## (wherein X represents a member selected from the group consisting of aromatic rings such as benzene ring, naphthalene ring, etc., heterocyclic 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., heterocyclic rings such as dibenzofuran ring, etc. and their substituents, Ar.sub.2 and Ar.sub.3 represent respectively 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 respectively 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)].
    • 本发明提供由通式 [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至3的整数)表示的双偶氮化合物 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; 以及具有高灵敏度的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颜料作为有效成分,其通过通式[表示] [其中 R'表示选自氢,乙基,氯乙基和羟乙基的成员,A'表示选自下列的成员:其中X表示选自芳环的成员 苯环,萘环等杂环,吲哚环,咔唑环,苯并呋喃环等杂环及其取代基,Ar1表示选自苯环,萘环等芳香族的基团, 等等,杂环如二苯并呋喃环等及其取代基,Ar2和Ar3分别表示选自 由苯环,萘环等芳香环和它们的取代基组成的基团,R1和R3分别表示选自氢,低级烷基或苯基及其取代基的成员,R2表示选自 由低级烷基,羧基和它们的酯组成的组)]。
    • 13. 发明授权
    • Electrophotographic element containing disazo compounds
    • 含有双偶氮化合物的电子照相元件
    • US4348470A
    • 1982-09-07
    • US100066
    • 1979-12-04
    • Akio KozimaEiichi AkutsuKiyomi Ichizuka
    • Akio KozimaEiichi AkutsuKiyomi Ichizuka
    • G03G5/043G03G5/05G03G5/06H01L51/42G03G13/22
    • G03G5/0683
    • The present invention provides an electrophotographic element which comprises a charge generating layer and a charge transport layer formed, in order, on an electroconductive substrate, said charge generating layer comprising a disazo pigment expressed by the general formula: ##STR1## [wherein A represents ##STR2## represents a member selected from the group consisting of benzene ring, naphthalene ring, indole ring, carbazole ring, benzofuran ring and their substitutes; Ar.sub.1 represents a member selected from the group consisting of benzene ring, naphthalene ring, dibenzofuran ring, carbazole ring and their substitutes; each of Ar.sub.2 and Ar.sub.3 represents a member selected from the group consisting of benzene ring, naphthalene ring and their substitutes; each of R.sub.1 and R.sub.3 represents a member selected from the group consisting of hydrogen, lower alkyl radical, phenyl radical and their substitutes; and R.sub.2 represents a member selected from the group consisting of lower alkyl radical, carboxyl radical and alkyl ester thereof)] and a mixture of binder materials comprising polyvinyl butyral and acrylic resin.
    • 本发明提供了一种电子照相元件,其包括顺序地在导电基底上形成的电荷产生层和电荷传输层,所述电荷产生层包含由以下通式表示的双偶氮颜料:< IMAGE> + TR< IMAGE> [其中,A表示选自苯环,萘环,吲哚环,咔唑环,苯并呋喃环及其取代基的成员; Ar1表示选自苯环,萘环,二苯并呋喃环,咔唑环及其取代基的成员; Ar 2和Ar 3各自表示选自苯环,萘环及其取代基的成员; R1和R3各自表示选自氢,低级烷基,苯基及其取代基的成员; 并且R 2表示选自低级烷基,羧基及其烷基酯的成员)]和包含聚乙烯醇缩丁醛和丙烯酸树脂的粘合剂材料的混合物。
    • 14. 发明授权
    • Electrophotographic element with a combination of binder resins
    • 具有粘合剂树脂组合的电子照相元件
    • US4301224A
    • 1981-11-17
    • US168215
    • 1980-07-10
    • Akio KozimaEiichi Akutsu
    • Akio KozimaEiichi Akutsu
    • G03G5/00G03G5/05G03G5/06G03G5/14
    • G03G5/0525
    • An electrophotographic element comprising, in successive layers; a conductive substrate, a charge generation layer and a charge transport layer, the charge generation layer being formed by the steps of; adding to a dispersion comprising a photoconductive organic pigment, a solvent and a resin being superior in mutual solubility with said solvent a resinous solution comprising said solvent and a resin being relatively inferior in mutual solubility with said solvent to the former resin; dispersing (or stirring) the resulting mixture again, thereby obtaining a photoconductive organic pigment-dispersed resinous solution; and applying said resinous solution onto the conductive substrate and drying.
    • 一种电摄象元件,包括连续的层; 导电基板,电荷产生层和电荷传输层,电荷产生层通过以下步骤形成: 添加到包含光导有机颜料,溶剂和与所述溶剂的互溶性优异的树脂中的树脂溶液和与所述溶剂相互溶解的树脂相对于前者树脂相比差的树脂; 再次分散(或搅拌)所得混合物,从而得到光导有机颜料分散树脂溶液; 并将所述树脂溶液施加到导电基底上并干燥。
    • 15. 发明授权
    • Electrophotographic element with carbazole-phenyhydrazone charge
transport layer
    • 咔唑 - 苯腙电荷传输层的电子照相元件
    • US4256821A
    • 1981-03-17
    • US102591
    • 1979-12-12
    • Takamichi EnomotoTatuya KatohAkio KozimaTatsumi Satoh
    • Takamichi EnomotoTatuya KatohAkio KozimaTatsumi Satoh
    • G03G5/04G03G5/06G03G5/14
    • G03G5/0683
    • The present invention provides a layered electrophotographic element which comprises an electroconductive support on which there is a charge generating layer and a charge transfer layer in order, said charge generating layer being consisted essentially of a charge generating agent expressed by the general formula I ##STR1## [wherein A represents ##STR2## (wherein X is selected from the group consisting of benzene ring, naphthalene ring, indole ring, carbazole ring, benzofuran ring and substitutes thereof, Ar.sub.1 is selected from the group consisting of benzene ring, naphthalene ring, dibenzofuran ring, carbazole ring and substitutes thereof, Ar.sub.2 and Ar.sub.3 are selected from the group consisting of benzene ring, naphthalene ring and substitutes thereof, R.sub.1 and R.sub.3 are selected from the group consisting of hydrogen, lower alkyl group, phenyl group and substitutes thereof and R.sub.2 is selected from the group consisting of lower alkyl group, carboxyl group and alkyl esters thereof)], said charge transfer layer being consisted essentially of a charge transfer agent expressed by the general formula II ##STR3## (wherein R.sub.1 represents methyl, ethyl, 2-hydroxyethyl or 2-chloroethyl group and R.sub.2 represents methyl, ethyl, benzyl or phenyl group) and polycarbonate.
    • 本发明提供一种层状电子照相元件,其包括依次具有电荷产生层和电荷转移层的导电载体,所述电荷产生层基本上由通式I表示的电荷产生剂组成, + TR 其中A表示 + TR图像(其中X选自苯环,萘环,吲哚环,咔唑环,苯并呋喃环及其取代基,Ar1选自 由苯环,萘环,二苯并呋喃环,咔唑环及其取代基组成的组中,Ar2和Ar3选自苯环,萘环及其取代基,R1和R3选自氢,低级 烷基,苯基及其取代基,R2选自低级烷基,羧基和烷基酯 eof)],所述电荷转移层主要由通式II所表示的电荷转移剂组成(其中R 1表示甲基,乙基,2-羟乙基或2-氯乙基,R 2表示甲基,乙基,苄基或 苯基)和聚碳酸酯。