公开(公告)号：US5015551A

公开(公告)日：1991-05-14

申请号：US613020

申请日：1984-05-23

申请人： Hiromichi Tachikawa ,  Hiroaki Yokoya ,  Nobuo Suzuki ,  Syu Watarai

发明人： Hiromichi Tachikawa ,  Hiroaki Yokoya ,  Nobuo Suzuki ,  Syu Watarai

IPC分类号： G03G9/12 ,  C08F2/00 ,  C08F2/44 ,  G03G9/13

CPC分类号： G03G9/131

摘要： An electrophotographic liquid developer is disclosed. The developer is comprised of resin particles dispersed in a high-insulating low dielectric non-aqueous solvent. The resin particles are prepared by polymerizing or copolymerizing a specific styrenic monomer in an organic solvent containing a polymer which is substantially soluble in the organic solvent. The liquid developer is particularly suitable for making a printing plate or sheet by an electrophotographic process.

摘要翻译： 公开了电子照相液体显影剂。 显影剂由分散在高绝缘性低介电非水溶剂中的树脂颗粒构成。 树脂颗粒通过在特定的苯乙烯类单体在含有基本上可溶于有机溶剂的聚合物的有机溶剂中聚合或共聚来制备。 液体显影剂特别适用于通过电子照相方法制造印版或片。

公开(公告)号：US5426012A

公开(公告)日：1995-06-20

申请号：US466905

申请日：1990-01-18

申请人： Hiroaki Yokoya ,  Hiromichi Tachikawa ,  Syu Watarai

发明人： Hiroaki Yokoya ,  Hiromichi Tachikawa ,  Syu Watarai

IPC分类号： C09B47/04 ,  G03G5/05 ,  G03G5/06 ,  G03G5/09 ,  G03G13/26 ,  G03G13/28 ,  G03G15/09

CPC分类号： G03G5/0521 ,  G03G5/0514 ,  G03G5/0517 ,  G03G5/0696 ,  G03G13/28

摘要： An electrophotographic printing plate precursor is disclosed, which comprises an electrically conductive support having thereon a photoconductive layer containing a photoconductive pigment and binder resin which is designated to undergo an electrophotographic process wherein a toner image is formed and the photoconductive layer in the non-image portion other than the toner image portion is then removed to form a printing plate, wherein said photoconductive pigment is a phthalocyanine pigment and said photoconductive layer further comprises at least one compound selected from the compounds represented by the formulae (I), (II) and (III): ##STR1## wherein Z represents a sulfur atom or an oxygen atom, R.sup.1 represents an alkyl group, an alkoxy group, a single ring or double condensed ring aryl group, a single ring or a double condensed ring aryloxy group, or a univalent group derived from a heterocyclic ring, and the two R.sup.1 groups in general formula (III) may be the same or different;R.sup.2 and R.sup.3 each represent a hydrogen atom, an alkyl group, a single ring or double condensed ring aryl group, or a univalent group derived from a heterocyclic ring, and R.sup.2 and R.sup.3 may be the same or different;R.sup.4 represents a methylene group, a polymethylene group, a branched alkanediyl group or an arylene group, and R.sup.1 and R.sup.2, or R.sup.2 and R.sup.3 may be bonded together.

摘要翻译： 公开了一种电子照相印版前体，其包括导电载体，其上具有含有光电导颜料和粘合剂树脂的光电导层，其被指定经历电子照相方法，其中形成调色剂图像，并且非图像部分中的光电导层 然后除去调色剂图像部分以形成印版，其中所述光导颜料是酞菁颜料，并且所述光电导层还包含选自由式（I），（II）和（II）表示的化合物中的至少一种化合物， （III）其中Z表示硫原子或氧原子，R1表示烷基，烷氧基，单环或双稠环芳基 基团，单环或双稠环芳氧基或衍生自杂环的一价基团，通式（III）中的两个R 1基团可以是 相同或不同; R2和R3各自表示氢原子，烷基，单环或双稠环芳基或衍生自杂环的一价基团，R2和R3可以相同或不同; R4表示亚甲基，多亚甲基，支链烷二基或亚芳基，R 1和R 2，或R 2和R 3可以结合在一起。

公开(公告)号：US5102760A

公开(公告)日：1992-04-07

申请号：US584027

申请日：1990-09-18

申请人： Hiroaki Yokoya ,  Hiromichi Tachikawa ,  Syu Watarai ,  Syunichi Kondo ,  Seiji Horie

发明人： Hiroaki Yokoya ,  Hiromichi Tachikawa ,  Syu Watarai ,  Syunichi Kondo ,  Seiji Horie

IPC分类号： C07D239/60 ,  C07D405/06 ,  C07D409/06 ,  G03G5/06

CPC分类号： C07D405/06 ,  C07D239/60 ,  C07D409/06 ,  G03G5/0638 ,  G03G5/0661 ,  G03G5/0696

摘要： A novel electrophotographic photoreceptor for copiers or photoprinters is provided comprising a photoconducting layer provided on an electrically conductive support, wherein said photoconducting layer comprises a phthalocyanine pigment and at least one compound represented by the general formula (I) or (II): ##STR1## wherein Z represents a sulfur atom or oxygen atom; R.sup.1 and R.sup.2 may be the same or different and each represents a hydrogen atom, alkyl group, aryl group or aralkyl group; A represents an alkyl group, aryl group, aralkyl group or monovalent heterocyclic group; and B represents an alkylene group, arylene group, polymethylene group or aralkylene group.A novel electrophotographic printing plate precursor is also provided which comprises a photoconducting layer containing at least a photoconducting pigment and a binder resin on an electrically conductive support and is adapted to form a printing plate in an electrophotographic process comprising forming a toner image, and then removing said photoconducting layer from the non-image portions except said toner image portions, characterized in that said photoconducting pigment is a phthalocyanine pigment and said photoconducting layer further comprises a compound represented by the general formula [I] or [II]: ##STR2## wherein Z represents a sulfur atom or oxygen atom; R.sup.1 and R.sup.2 may be the same or different and each represents a hydrogen atom, alkyl group, aryl group or aralkyl group; A represents an alkyl group, aryl group, aralkyl group or monovalent heterocyclic group; and B represents an alkylene group, arylene group, polymethylene group or aralkylene group.

摘要翻译： 提供了一种用于复印机或照相印刷机的新型电子照相感光体，其包括设置在导电载体上的光导层，其中所述光导层包含酞菁颜料和至少一种由通式（I）或（II）表示的化合物： （I）其中Z表示硫原子或氧原子; R1和R2可以相同或不同，各自表示氢原子，烷基，芳基或芳烷基; A表示烷基，芳基，芳烷基或1价杂环基; B表示亚烷基，亚芳基，多亚甲基或亚芳烷基。 还提供了一种新颖的电子照相印版前体，其包括在导电载体上至少含有光导颜料和粘合剂树脂的光导层，并且适于在电子照相方法中形成印版，包括形成调色剂图像，然后除去 所述光导体层除了所述调色剂图像部分之外的非图像部分，其特征在于所述光导颜料是酞菁颜料，并且所述光导层还包含由通式[I]或[II]表示的化合物：（ I）其中Z表示硫原子或氧原子;（II）其中Z表示硫原子或氧原子; R1和R2可以相同或不同，各自表示氢原子，烷基，芳基或芳烷基; A表示烷基，芳基，芳烷基或1价杂环基; B表示亚烷基，亚芳基，多亚甲基或亚芳烷基。

公开(公告)号：US5063129A

公开(公告)日：1991-11-05

申请号：US449161

申请日：1989-12-13

申请人： Hiroaki Yokoya ,  Hiromichi Tachikawa ,  Syu Watarai

发明人： Hiroaki Yokoya ,  Hiromichi Tachikawa ,  Syu Watarai

IPC分类号： G03G5/06

CPC分类号： G03G5/0618 ,  G03G5/062 ,  G03G5/0638 ,  G03G5/0661

摘要： A electrophotographic printing plate precursor comprising an electrically-conductive support having thereon a photoconductive layer containing at least photoconductive pigments and a binder resin, wherein said photoconductive pigments are phthalocyanine pigments and said photoconductive layer further comprises a compound represented by the general formula (I), (II) or (III): ##STR1## wherein Z represents a sulfur or oxygen atom; Ar represents a monovalent aromatic hydrocarbon group or monovalent heterocyclic group; R.sub.3 represents a hydrogen atom, alkyl group, aryl group or aralkyl group; Ar and R.sub.3 may together form a ring; and R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group, aryl group or aralkyl group, with the proviso that the aromatic hydrocarbon group and heterocyclic group represented by Ar and the alkyl, aryl and aralkyl group represented by R.sub.1, R.sub.2 and R.sub.3 may be further substituted by substituents, ##STR2## wherein Z represents a sulfur or oxygen atom; R.sub.4 to R.sub.9, which may be the same or different, each represents a hydrogen atom, alkyl group, aryl group or monovalent group derived from heterocyclic group; R.sub.4 and R.sub.5 or R.sub.6 and R.sub.7 may be connected to each other; R.sub.4 to R.sub.7 may be connected to each other to form a crosslinkable ring as a whole in the general formula (II); and R.sub.10 represents a divalent arylene, aralkylene, polymethylene or alkylene group.

摘要翻译： 一种电子照相平版印刷版原版，其特征在于，具有导电性支持体，其上具有至少含有光电导性颜料的光电导层和粘合剂树脂，其中，所述感光颜料为酞菁颜料，所述感光层还含有通式（I）表示的化合物， （II）或（III）：其中Z表示硫或氧原子; Ar表示一价芳香族烃基或1价杂环基; R3表示氢原子，烷基，芳基或芳烷基; Ar和R3可以一起形成环; 并且可以相同或不同的R 1和R 2各自表示烷基，芳基或芳烷基，条件是由Ar表示的芳族烃基和杂环基以及由R 1表示的烷基，芳基和芳烷基 （II）其中Z表示硫或氧原子; R 3和R 3可以进一步被取代基取代。 R 4〜R 9可以相同或不同，表示氢原子，烷基，芳基或衍生自杂环基的一价基团; R4和R5或R6和R7可以彼此连接; R4至R7可以彼此连接，从而在通式（II）中整体形成可交联的环; R 10表示二价亚芳基，亚芳基，多亚甲基或亚烷基。

公开(公告)号：US5069992A

公开(公告)日：1991-12-03

申请号：US614421

申请日：1990-11-16

申请人： Hiromichi Tachikawa ,  Hiroaki Yokoya ,  Syu Watarai ,  Toshiaki Aoai

发明人： Hiromichi Tachikawa ,  Hiroaki Yokoya ,  Syu Watarai ,  Toshiaki Aoai

IPC分类号： C08G18/08 ,  G03G5/05

CPC分类号： C08G18/0823 ,  G03G5/0575

摘要： An electrophotographic printing plate precursor comprising an electrically-conductive support having thereon a photoconductive layer containing at least a photoconductive compound and a binding resin wherein said binding resin is an alkali-soluble polyurethane resin.

摘要翻译： 一种电子照相印版前体，其包括导电载体，其上具有至少含有光电导性化合物的光电导层和粘合树脂，其中所述粘合树脂是碱溶性聚氨酯树脂。

公开(公告)号：US4681832A

公开(公告)日：1987-07-21

申请号：US817650

申请日：1986-01-10

申请人： Hiromichi Tachikawa ,  Hiroaki Yokoya ,  Syu Watarai ,  Katuzi Kitatani

发明人： Hiromichi Tachikawa ,  Hiroaki Yokoya ,  Syu Watarai ,  Katuzi Kitatani

IPC分类号： G03G9/12 ,  G03G9/13

CPC分类号： G03G9/131

摘要： A novel electrophotographic liquid developer is provided, comprising a coloring agent, a coating agent, a dispersant, an electric charge adjustor, and a carrier liquid, wherein said coating agent is a copolymer of a long-chain alkyl acrylate or methacrylate and a methyl methacrylate, and has a softening temperature within the range of from 40.degree. to 140.degree. C. and a number-average molecular weight of from 5.times.10.sup.3 to 1.times.10.sup.5. The long-chain alkyl group is a straight-chain or branched alkyl group having from 8 to 22 carbon atoms. In preferred embodiments, the long-chain alkyl methacrylate is 2-ethylhexyl methacrylate, lauryl methacrylate, or stearyl methacrylate.

摘要翻译： 提供了一种新颖的电子照相液体显影剂，其包含着色剂，包衣剂，分散剂，电荷调节剂和载体液体，其中所述包衣剂是长链烷基丙烯酸酯或甲基丙烯酸酯与甲基丙烯酸甲酯的共聚物 ，软化温度为40〜140℃，数均分子量为5×10 3〜1×10 5。 长链烷基是具有8至22个碳原子的直链或支链烷基。 在优选的实施方案中，长链烷基甲基丙烯酸酯是甲基丙烯酸2-乙基己酯，甲基丙烯酸月桂酯或甲基丙烯酸硬脂酯。

公开(公告)号：US4473630A

公开(公告)日：1984-09-25

申请号：US451221

申请日：1982-12-20

申请人： Hiroaki Yokoya ,  Hiromichi Tachikawa ,  Nobuo Suzuki ,  Shu Watarai

发明人： Hiroaki Yokoya ,  Hiromichi Tachikawa ,  Nobuo Suzuki ,  Shu Watarai

IPC分类号： C07C67/00 ,  C07C209/00 ,  C07C211/27 ,  C07D295/02 ,  C08F12/26 ,  C08F212/00 ,  G03G9/08 ,  G03G9/097 ,  G03G9/13 ,  G03G9/18

CPC分类号： G03G9/08 ,  G03G9/131

摘要： A liquid developer for electrostatic images which comprises toner particles dispersed in a nonaqueous medium having an electrical resistance of 10.sup.9 .OMEGA..multidot.cm or more and a dielectric constant of 3 or less, wherein said toner particles are composed of a resin polymer comprised of monomer units selected from the group of monomers represented by the following formula (I) and a coloring agent: ##STR1## wherein X represents ##STR2## and n represents an integer of 1-6, wherein R.sup.1 and R.sup.2 each represents an alkyl group having 1-18 carbon atoms, and alkyl substituted or nonsubstituted aryl group (the substituent being an alkyl group having 1-12 carbon atoms), or an aralkyl group (substituent alkyl groups in case that the benzene nucleus is substituted by alkyl groups have 1-12 carbon atoms, and the alkylene group has 1-12 carbon atoms).

摘要翻译： 一种用于静电图像的液体显影剂，其包含分散在电阻为10欧姆·厘米或更大且介电常数为3以下的非水介质中的调色剂颗粒，其中所述调色剂颗粒由包含单体单元的树脂聚合物组成，所述单体单元选自 由下式（I）表示的单体组和着色剂：其中X表示＆lt; IMAGE＆gt;和n表示1-6的整数，其中R 1和R 2各自表示具有1 -18个碳原子和烷基取代或未取代的芳基（取代基为具有1-12个碳原子的烷基）或芳烷基（在苯环被烷基取代的情况下的取代烷基具有1-12个 碳原子，亚烷基具有1-12个碳原子）。

公开(公告)号：US4734351A

公开(公告)日：1988-03-29

申请号：US913277

申请日：1986-09-30

申请人： Katsuji Kitatani ,  Hiroaki Yokoya ,  Syu Watarai

发明人： Katsuji Kitatani ,  Hiroaki Yokoya ,  Syu Watarai

IPC分类号： G03G9/13 ,  G03G9/18

CPC分类号： G03G9/131

摘要： A liquid developer for electrostatic charge images comprising a polymer selected from (a) a polymer containing at least one polymerizable monomer represented by the following general formula (1) as a component of the polymer, and (b) a polymer containing at least one polymerizable monomer represented by the following general formula (2) and chloromethylstyrene a copolymer components, the polymer being dispersed in a carrier liquid having an electric resistance of at least 10.sup.9 .OMEGA..cm and a dielectric constant of at most 3, ##STR1## wherein all the symbols are defined in the specification.

摘要翻译： 一种用于静电荷图像的液体显影剂，其包含选自（a）含有至少一种由以下通式（1）表示的可聚合单体的聚合物作为聚合物组分的聚合物的聚合物，和（b）含有至少一种可聚合的 由下列通式（2）表示的单体和氯甲基苯乙烯是共聚物组分，该聚合物分散在电阻为至少为10 9欧姆·厘米，介电常数为3以下的载液中， （2）其中所有符号在说明书中定义。

公开(公告)号：US4985323A

公开(公告)日：1991-01-15

申请号：US250669

申请日：1988-09-29

申请人： Hiroaki Yokoya ,  Hiromichi Tachikawa ,  Hideo Sato

发明人： Hiroaki Yokoya ,  Hiromichi Tachikawa ,  Hideo Sato

IPC分类号： C09B11/00 ,  C09B23/01 ,  C09B23/02 ,  C09B23/10 ,  G03G5/06 ,  G03G5/09

CPC分类号： C09B23/0091 ,  C09B11/00 ,  C09B23/02 ,  C09B23/10 ,  G03G5/0609 ,  G03G5/0614 ,  G03G5/0618 ,  G03G5/0661 ,  G03G5/0664 ,  G03G5/067 ,  G03G5/09

摘要： An electrophotographic printing plate comprising a conductive support having provided thereon a photoconductive insulating layer containing:(1) at least one organic photoconductive compound,(2) at least one sensitizer selected from the group consisting of compounds represented by formula (A-I), (A-II), (B), (C-I), (C-II), (C-III), (C-IV), (D) or (E); ##STR1## . (3) at least one amide compound selected from the group consisting of compounds represented by formula (I), (II), or (III); ##STR2## and (4) a binder resin soluble or dispersible in an alkaline solvent (wherein symbols in formulae are defined as in claim 1). The printing plate exhibits high sensitivity sufficient to respond to a laser light source and provides a printing plate free from background stains.

摘要翻译： 一种电子照相印刷版，其特征在于，具有导电性支持体，其上设有光电导绝缘层，所述导电绝缘层含有：（1）至少一种有机光电导性化合物，（2）至少一种敏化剂，其选自由式（AI）表示的化合物，（A -II），（B），（CI），（C-II），（C-III），（C-IV），（D）或（E） （A-II）（B）（CI）（C-III）（C-IV）（D）（E）。 （3）至少一种选自由式（I），（II）或（III）表示的化合物的酰胺化合物; （III）和（4）可溶于或分散于碱性溶剂中的粘合剂树脂（式中的符号如权利要求1中所定义）。 该印版显示出足以响应激光光源的高灵敏度，并提供不含背景污渍的印版。

公开(公告)号：US4800146A

公开(公告)日：1989-01-24

申请号：US929315

申请日：1986-11-12

申请人： Hiroaki Yokoya ,  Kenji Sano ,  Hiromichi Tachikawa ,  Hideo Sato

发明人： Hiroaki Yokoya ,  Kenji Sano ,  Hiromichi Tachikawa ,  Hideo Sato

IPC分类号： G03G5/06

CPC分类号： G03G5/0614 ,  G03G5/0616

摘要： A transparent electrophotographic photoreceptor comprising a conductive support having provided thereon a photosensitive layer is disclosed, wherein said photosensitive layer contains a combination of at least one of specific hydrazone compounds and at least one of specific benzidine compounds as photoconductive substances. These photoconductive substances are prevented from crystallization and precipitation on the surface of the photoreceptor so that the photoreceptor exhibits satisfactory stability before and after image formation even when preserved for long periods of time or under a high temperature condition.

摘要翻译： 公开了一种透明电子照相感光体，其包括在其上设置有感光层的导电性载体，其中所述感光层包含特定腙化合物和至少一种特定的联苯胺化合物作为光导性物质的组合。 防止这些感光体在感光体的表面上结晶析出，使感光体在图像形成前后即使在长时间保持或高温条件下显示令人满意的稳定性。