公开(公告)号：US5700612A

公开(公告)日：1997-12-23

申请号：US661723

申请日：1996-06-11

申请人： Eiichi Kato ,  Yusuke Nakazawa ,  Kazuo Ishii

发明人： Eiichi Kato ,  Yusuke Nakazawa ,  Kazuo Ishii

IPC分类号： G03G13/26 ,  G03G13/28

CPC分类号： G03G13/26 ,  G03G13/283

摘要： A method for preparation of a printing plate by an electrophotographic process comprising providing a peelable transfer layer (T) containing a resin (A) capable of being removed upon a chemical reaction treatment on an electrophotographic light-sensitive element, forming a toner image on the transfer layer by an electrophotographic process, providing an adhesive layer (M) containing a thermoplastic resin (B) only on the toner image, transferring the toner image together with the transfer layer (T) and the adhesive layer (M) from the electrophotographic light-sensitive element to a primary receptor, transferring the toner image together with the transfer layer (T) and the adhesive layer (M) from the primary receptor to a receiving material having a surface capable of providing a hydrophilic surface suitable for lithographic printing at the time of printing, and then removing the transfer layer (T) in the non-image portion on the receiving material by the chemical reaction treatment. According to the method of the present invention, printing plates which produce prints of good image qualities having a lage proportion of image areas can be continuously obtained in a stable manner for a long period of time even when a thickness of the transfer layer is reduced or the transfer is conducted under conditions of low temperature, low pressure and high speed irrespective of the kind of toner employed.

摘要翻译： 一种通过电子照相方法制备印版的方法，包括提供含有可在电子照相感光元件进行化学反应处理时能除去的树脂（A）的可剥离转印层（T），在 通过电子照相方法转印层，仅在调色剂图像上提供含有热塑性树脂（B）的粘合剂层（M），将调色剂图像与转印层（T）和粘合剂层（M）一起从电子照相光转印 将调色剂图像与转印层（T）和粘合剂层（M）一起从初级接收体转移到具有能够提供适合于平版印刷的亲水表面的表面的接收材料 打印时间，然后通过化学反应处理去除接收材料上的非图像部分中的转印层（T）。 根据本发明的方法，即使当转印层的厚度减小时，也可以长期稳定地连续地获得具有图像面积比例大的具有良好图像质量的印刷品的印刷版， 转移在低温，低压和高速的条件下进行，而与使用的调色剂的种类无关。

公开(公告)号：US5652076A

公开(公告)日：1997-07-29

申请号：US660129

申请日：1996-06-07

申请人： Eiichi Kato ,  Hiroyuki Oishi ,  Kazuo Ishii

发明人： Eiichi Kato ,  Hiroyuki Oishi ,  Kazuo Ishii

IPC分类号： G03G5/05 ,  G03G13/28 ,  G03G13/16

CPC分类号： G03G5/0592 ,  G03G13/283 ,  G03G5/0589

摘要： A method for preparation of a printing plate by an electrophotographic process comprising providing a peelable transfer layer (T) containing a resin (A) capable of being removed upon a chemical reaction treatment on an electrophotographic light-sensitive element, forming a toner image on the transfer layer by an electrophotographic process, providing an adhesive layer (M) containing a thermoplastic resin (B) only on the toner image, transferring the toner image together with the transfer layer (T) and the adhesive layer (M) from the electrophotographic light-sensitive element to a receiving material having a surface capable of providing a hydrophilic surface suitable for lithographic printing at the time of printing, and then removing the transfer layer (T) on the receiving material by the chemical reaction treatment.According to the method, printing plates which produces prints of good image qualities can be continuously obtained in a stable manner for a long period of time even when the transfer is conducted under conditions of low temperature, low pressure and high speed.

摘要翻译： 一种通过电子照相方法制备印版的方法，包括提供含有可在电子照相感光元件进行化学反应处理时能除去的树脂（A）的可剥离转印层（T），在 通过电子照相方法转印层，仅在调色剂图像上提供含有热塑性树脂（B）的粘合剂层（M），将调色剂图像与转印层（T）和粘合剂层（M）一起从电子照相光转印 具有能够提供在印刷时适合于平版印刷的亲水性表面的表面的接收材料的敏感元件，然后通过化学反应处理除去接收材料上的转印层（T）。 根据该方法，即使在低温，低压和高速的条件下进行转印，也可以长时间稳定地连续地获得产生良好图像质量的印刷品的印版。

公开(公告)号：US5607533A

公开(公告)日：1997-03-04

申请号：US457461

申请日：1995-06-01

申请人： Eiichi Kato

发明人： Eiichi Kato

IPC分类号： G03G13/16 ,  G03G13/28 ,  B44C1/165

CPC分类号： G03G13/16 ,  G03G13/283

摘要： Disclosed is a method for preparation of a printing plate by an electrophotographic process comprising forming a toner image on an electrophotographic light-sensitive element by an electrophotographic process. A peelable transfer layer is provided mainly containing a resin (A) capable of being removed upon a chemical reaction treatment on the toner image. The toner image is transferred together with the transfer layer onto a primary receptor. The toner image together with the transfer layer is then transferred from the primary receptor onto a receiving material having a surface which is capable of providing a hydrophilic surface suitable for lithographic printing at the time of printing. The transfer layer on the receiving material is removed by the chemical reaction treatment.

摘要翻译： 公开了一种通过电子照相方法制备印版的方法，包括通过电子照相方法在电子照相感光元件上形成调色剂图像。 主要提供一种可剥离的转印层，其中包含能够在对调色剂图像进行化学反应处理时能够除去的树脂（A）。 调色剂图像与转移层一起转移到主受体上。 然后将调色剂图像与转印层一起从初级接收器转移到具有能够在印刷时适于平版印刷的亲水表面的表面的接收材料上。 通过化学反应处理除去接收材料上的转移层。

公开(公告)号：US5409795A

公开(公告)日：1995-04-25

申请号：US158588

申请日：1993-11-29

申请人： Eiichi Kato

发明人： Eiichi Kato

IPC分类号： C08F2/08 ,  C08F2/44 ,  C08F2/48 ,  C08F291/00 ,  G03G9/13 ,  G03G9/135

CPC分类号： G03G9/133 ,  C08F2/48

摘要： A process of producing a nonaqueous resin dispersion, particularly useful for a liquid developer in electrostatic photographic, which comprises subjecting to photopolymerization a system containing at least a monomer (A) having one polymerizable double bond, which is soluble in a nonaqueous solvent but becomes insoluble upon polymerization thereof, and at least a dispersion stabilizing resin (P) which is a polymer having a weight average molecular weight of from 1.times.10.sup.4 to 1.times.10.sup.6 and containing a specific repeating unit represented by formula (I) in an amount of at least 50% by weight based on the weight of the polymer and has a specific functional group represented by formula (II) bonded to the side chain of the polymer and/or only one terminal of the main chain of the polymer, the photopolymerization reaction being carried out in the nonaqueous solvent by irradiating the system with ultraviolet rays having a wavelength of not longer than 400 n.m.: ##STR1##

摘要翻译： 一种特别可用于静电照相液体显影剂的非水树脂分散体的方法，其包括使至少含有一个可聚合双键的单体（A）的系统进行光聚合，所述单体（A）可溶于非水溶剂但不溶于 至少一种分散稳定树脂（P），它是重均分子量为1×10 4至1​​×10 6的聚合物，并且含有式（I）表示的特定重复单元的量至少为50％ 以聚合物的重量为基准，并具有与聚合物的侧链键合的式（II）表示的特定官能团和/或仅聚合物主链的一个末端，光聚合反应在 （II）的紫外线照射系统的非水溶剂。

公开(公告)号：US5308730A

公开(公告)日：1994-05-03

申请号：US966347

申请日：1992-10-26

申请人： Nobuo Suzuki ,  Yutaka Sakasai ,  Seiji Horie ,  Eiichi Kato

发明人： Nobuo Suzuki ,  Yutaka Sakasai ,  Seiji Horie ,  Eiichi Kato

IPC分类号： G03G9/13 ,  G03G9/135

CPC分类号： G03G9/131

摘要： There is disclosed a liquid developer composition for electrostatic photography, which comprises, in a nonaqueous solvent having an electric resistance of 10.sup.9 .OMEGA..cm or over and a dielectric constant of 3.5 or over, a toner particle, a charge-controlling agent or resin, and an acid group containing polymer soluble in said nonaqueous solvent and/or a quaternary ammonium salt.

摘要翻译： 公开了一种静电摄影用液体显影剂组合物，其特征在于，在电阻为10欧姆·厘米或以上，介电常数为3.5以上的非水溶剂中，调色剂颗粒，电荷控制剂或树脂， 和可溶于所述非水溶剂和/或季铵盐的含酸基的聚合物。

公开(公告)号：US5250376A

公开(公告)日：1993-10-05

申请号：US943520

申请日：1992-09-11

申请人： Eiichi Kato ,  Akio Oda ,  Hiroshi Tashiro

发明人： Eiichi Kato ,  Akio Oda ,  Hiroshi Tashiro

IPC分类号： G03G5/05 ,  G03G13/28 ,  G03G5/087

CPC分类号： G03G13/28 ,  G03G5/0589

摘要： An electrophotographic lithographic printing plate, in which the effect by the hydrophilic property of non-image areas is further improved, and which is stable during storage even under very severe conditions and capable of readily realizing the hydrophilic property in a short time during processing of rendering hydrophilic is provided by a process for the production of an electrophotographic lithographic printing plate, comprising subjecting an electrophotographic photoreceptor to imagewise exposure and forming a toner image, the electrophotographic photoreceptor comprising an electroconductive support having provided thereon at least one photoconductive layer containing photoconductive inorganic compound and a binder resin, the binder resin comprising at least one resin (P) as defined herein, and optionally at least one crosslinking agent, and then subjecting a non-image area of the photoconductive layer to an oil-desensitizing processing with a processing solution containing a hydrophilic compound containing a substituent having a Pearson's nucleophilic constant n of at least 5.5.

摘要翻译： 一种电子照相平版印刷版，其中非图像区域的亲水性的作用进一步提高，即使在非常苛刻的条件下也能在保存期间稳定，并且能够在加工过程中在短时间内容易地实现亲水性 通过生产电子照相平版印刷版的方法提供亲水性，其包括使电子照相感光体经受成像曝光并形成调色剂图像，所述电子照相感光体包含导电载体，所述导电载体上设置有至少一个含有光电导无机化合物的光电导层和 粘合剂树脂，包含至少一种如本文所定义的树脂（P）的粘合剂树脂和任选的至少一种交联剂，然后用含有以下物质的处理溶液对光电导层的非图像区域进行脱油处理 一个水电 含有具有至少5.5的皮尔逊亲核常数n的取代基的亲液性化合物。

公开(公告)号：US5206104A

公开(公告)日：1993-04-27

申请号：US655608

申请日：1991-02-15

申请人： Eiichi Kato

发明人： Eiichi Kato

IPC分类号： G03G5/05

CPC分类号： G03G5/0592 ,  G03G5/0589

摘要： An electrophotographic light-sensitive material comprising a support having provided thereon at least one photoconductive layer containing an inorganic photoconductive substance and a binder resin, wherein the binder resin comprises at least one resin (A) or (A') and at least one resin (B) as described above. The electrophotographic light-sensitive material according to the present invention is excellent in electrostatic characteristics, moisture resistance and durability.

摘要翻译： 一种电子照相感光材料，包括其上提供有至少一个含有无机光电导物质和粘合剂树脂的光电导层的载体，其中粘合剂树脂包含至少一种树脂（A）或（A'）和至少一种树脂（ B）。 本发明的电子照相感光材料的静电特性，耐湿性和耐久性优异。

公开(公告)号：US5202208A

公开(公告)日：1993-04-13

申请号：US655606

申请日：1991-02-15

申请人： Eiichi Kato

发明人： Eiichi Kato

IPC分类号： G03G5/05

CPC分类号： G03G5/0589 ,  G03G5/0592

摘要： An electrophotographic light-sensitive material having a photoconductive layer containing at least an inorganic photoconductive substance and a binder resin, wherein the binder resin comprises (A) at least one AB block copolymer (Resin (A)) having a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 and composed of an A block comprising at least one polymer component containing at least one acidic group as described herein, and a B block containing at least a polymer component represented by formula (I) described herein, wherein the content of the polymer containing the acidic group in the AB block copolymer is from 0.5 to 20 parts by weight per 100 parts by weight of the AB block copolymer; and (B) at least one copolymer (Resin (B)) having a weight average molecular weight of not less than 3.times.10.sup.4 and formed from at least a monofunctional macromonomer (MB) described herein having a weight average molecular weight of not more than 2.times.10.sup.4 and a monomer represented by general formula (V) described herein.

摘要翻译： 一种电子照相感光材料，其具有至少含有无机光电导性物质和粘合剂树脂的感光层，其中，所述粘合剂树脂包含（A）至少一种重均分子量为AB的AB嵌段共聚物（Resin（A）） 1×10 3至2×10 4，并由包含至少一种含至少一种本文所述的酸性基团的聚合物组分的A嵌段和至少含有本文所述的式（I）表示的聚合物组分的B嵌段组成，其中聚合物的含量 在AB嵌段共聚物中含有酸性基团为每100重量份AB嵌段共聚物0.5-20重量份; 和（B）重均分子量不小于3×10 4的至少一种共聚物（树脂（B）），并且由至少本文所述的单重官能大分子单体（MB）形成，其重均分子量不大于2×10 4，和 由本文所述的通式（V）表示的单体。

公开(公告)号：US5198319A

公开(公告)日：1993-03-30

申请号：US703651

申请日：1991-05-21

申请人： Eiichi Kato

发明人： Eiichi Kato

IPC分类号： C08L33/04 ,  C08L33/06 ,  C08L51/00 ,  C08L101/00 ,  C09J151/00 ,  G03G5/05 ,  G03G5/08 ,  G03G5/087 ,  G03G13/28

CPC分类号： G03G5/0589 ,  G03G5/0592

摘要： An electrophotographic light-sensitive material comprising a support having provided thereon a photoconductive layer containing at least an inorganic photoconductive substance and a binder resin, wherein the binder resin comprises (1) at least one graft type copolymer (Resin (A)) having a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 and containing, as a copolymerizable component, at least one mono-functional macromonomer (M) comprising an AB block copolymer being composed of an A block comprising at least one polymerizable component containing at least one acidic group selected from --PO.sub.3 H.sub.2, --COOH, --SO.sub.3 H, a phenolic hydroxyl group, ##STR1## (wherein R represents a hydrocarbon group or --OR' (wherein R' represents a hydrocarbon group)) and a cyclic acid anhydride-containing group, and a B block containing at least one polymerizable component represented by the general formula (I) and having a polymerizable double bond group bonded to the terminal of the main chain of the B block polymer ##STR2## and (2) at least one resin (Resin (B)) having a weight average molecular weight of 5.times.10.sup.4 or more, containing a repeating unit represented by the general formula (III) as a copolymerizable component, and having a crosslinked structure made before the preparation of a dispersion for forming the photoconductive layer ##STR3##

摘要翻译： 一种电子照相感光材料，包括其上设置有至少含有无机光电导性物质和粘合剂树脂的光电导层的载体，其中所述粘合剂树脂包含（1）至少一种具有重量的接枝型共聚物（树脂（A） 平均分子量为1×10 3至2×10 4，并含有至少一种包含AB嵌段共聚物的至少一种单官能大分子单体（M），该单官能大分子单体由包含至少一个含至少一个选自酸性基团的可聚合组分的A嵌段组成 -PO 3 H 2，-COOH，-SO 3 H，酚羟基，其中R表示烃基或-OR'（其中R'表示烃基））和含环状酸酐的基团，和 B嵌段，其含有至少一种由通式（I）表示的可聚合组分并具有结合到B嵌段主链的末端的可聚合双键基团 聚合物（I）和（2）至少一种重均分子量为5×10 4以上的树脂（树脂（B）），其含有作为可共聚组分的通式（III）表示的重复单元，和 （III）具有在制备用于形成光电导层的分散体之前制备的交联结构

公开(公告)号：US5183720A

公开(公告)日：1993-02-02

申请号：US555017

申请日：1990-07-20

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： C09J11/00 ,  C09J133/04 ,  C09J133/08 ,  C09J201/00 ,  G03G5/05 ,  G03G5/087 ,  G03G13/28

CPC分类号： G03G5/0592 ,  G03G5/0589

摘要： An electrophotographic light-sensitive material comprising a support having provided thereon at least one photoconductive layer containing an inorganic photoconductive substance and a binder resin, wherein the binder resin comprises (A) at least one resin having a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 and containing not less than 30% by weight of a copolymerizable component corresponding to a repeating unit represented by the general formula (I) described below and from 0.5 to 20% by weight of a copolymerizable component having at least one acidic group selected from the group consisting of --PO.sub.3 H.sub.2, --SO.sub.3 H, --COOH, --OH, ##STR1## (wherein R represents a hydrocarbon group or --OR' (wherein R' represents a hydrocarbon group)) and a cyclic acid anhydride-containing group; ##STR2## wherein a.sub.1 and a.sub.2 each represents a hydrogen atom, a halogen atom, a cyano group or a hydrocarbon group; and R.sub.1 represents a hydrocarbon group; and (B) at least one copolymer having a weight average molecular weight of from 5.times.10.sup.4 to 1.times.10.sup.6 and comprising at least a monofunctional macromonomer (M) and a monomer represented by the general formula (V) described below. ##STR3##