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    • 82. 发明授权
    • Electrophotographic printing original plate and electrophotographic
plate making process using the printing original plate
    • 电子照相印刷原版和电子版制版工艺采用印刷原版
    • US4596754A
    • 1986-06-24
    • US726363
    • 1985-04-23
    • Kyoji TsutsuiMitsuru HashimotoMasafumi OhtaMasaomi Sasaki
    • Kyoji TsutsuiMitsuru HashimotoMasafumi OhtaMasaomi Sasaki
    • C09B35/021G03G5/047G03G5/06G03G5/14
    • G03G5/0685C09B35/021G03G5/047G03G5/0679G03G5/0681G03G5/0683
    • An electrophotographic printing original plate is disclosed, which comprises an electroconductive support material and an electrophotographic photosensitive layer formed thereon, which electrophotographic photosensitive layer comprises (i) a charge generation layer consisting essentially of a particular azo pigment serving as a charge generating material and (ii) a charge transport layer consisting essentially of a charge transporting material and an alkali-soluble resin; and an electrophotographic printing plate making process using the above printing original plate is also disclosed, which comprises the steps of electrically charging uniformly the above printing original plate, exposing the charged printing original plate to optical images to form latent electrostatic images thereon, developing the latent electrostatic images with toner, fixing the toner images to the printing original plate, and removing the electrophotographic photosensitive layer portions corresponding to the non-image areas of the printing original plate by dissolving the photosensitive layer portions in a dissolving liquid, thereby making a printing plate.
    • 公开了一种电子照相印刷原版,其包括导电支撑材料和形成在其上的电子照相感光层,该电子照相感光层包含(i)基本上由用作电荷产生材料的特定偶氮颜料组成的电荷产生层和(ii )电荷传输层,其主要由电荷输送材料和碱溶性树脂组成; 并且还公开了使用上述印刷原版的电子照相印版制作方法,其包括以下步骤:均匀地对上述印刷原版进行充电,将带电印刷原版曝光于光学图像上以在其上形成静电图像, 用调色剂静电图像,将调色剂图像固定到印刷原版上,并通过将感光层部分溶解在溶解液中来除去与印刷原版的非图像区域对应的电照相感光层部分,从而制成印版 。
    • 85. 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)]。
    • 86. 发明授权
    • Electrophotographic sensitive element having a photoconductive disazo
pigment
    • 具有光导双偶氮颜料的电子照相感光元件
    • US4260672A
    • 1981-04-07
    • US922526
    • 1978-07-07
    • Masaomi SasakiKiyoshi SakaiMitsuru HashimotoMasafumi OhtaKyoji Tsutsui
    • Masaomi SasakiKiyoshi SakaiMitsuru HashimotoMasafumi OhtaKyoji Tsutsui
    • C09B35/08C09B35/205C09B56/06G03G5/06H01L51/42
    • G03G5/0683C09B56/06Y02E10/549
    • The present invention provides an electrophotographic element of a high sensitivity and a high flexibility comprising an electroconductive support and a photosensitive layer provided thereon and containing as an effective ingredient therein a disazo compound represented by the following general formula: ##STR1## wherein A is a radical selected from the group consisting of: ##STR2## in which X represents a ring selected from the group consisting of aromatic rings such as benzene ring and naphthalene ring, hetero rings such as indole ring, carbazole ring and benzofuran ring, and substituted derivatives thereof; Ar.sub.1 represents a radical selected from the group consisting of aromatic rings such as benzene ring and naphthalene ring, hetero rings such as dibenzofuran ring and substituted derivatives thereof; Ar.sub.2 and Ar.sub.3 represent radicals respectively selected from the group consisting of aromatic rings such as benzene ring and naphthalene ring, and substituted derivatives thereof; R.sub.1 and R.sub.3 represent radicals respectively selected from the group consisting of hydrogen atom, lower alkyl radicals and phenyl radical and substituted derivatives thereof; and R.sub.2 represents a radical selected from the group consisting of lower alkyl radicals, and carboxyl radical and esters thereof.
    • 本发明提供了一种具有高灵敏度和高柔性的电子照相元件,其包含导电载体和其上提供的感光层,并在其中含有由以下通式表示的双偶氮化合物作为有效成分:其中A是基团 其选自由以下组成的组: + TR ,其中X表示选自芳环如苯环和萘环,杂环如吲哚环,咔唑环和苯并呋喃环的环, 及其取代衍生物; Ar 1表示选自苯环,萘环等芳环的基团,二苯并呋喃环等杂环及其取代衍生物; Ar 2和Ar 3表示分别选自芳环如苯环和萘环的基团及其取代衍生物; R1和R3表示分别选自氢原子,低级烷基和苯基及其取代衍生物的基团; 并且R 2表示选自低级烷基和羧基的基团及其酯。
    • 88. 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)]。
    • 89. 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)]。