公开(公告)号：US4842975A

公开(公告)日：1989-06-27

申请号：US136517

申请日：1987-12-22

申请人： Eiichi Kato ,  Kazuo Ishii ,  Hiroshi Ishibashi ,  Shigeyuki Dan ,  Hidefumi Sera

发明人： Eiichi Kato ,  Kazuo Ishii ,  Hiroshi Ishibashi ,  Shigeyuki Dan ,  Hidefumi Sera

IPC分类号： G03G9/12 ,  G03G9/13

CPC分类号： G03G9/131

摘要： A liquid developer for electrostatic photography is described, comprising at least a resin dispersed in a non-aqueous solvent having an electric resistance of at least 10.sup.9 ohms.cm and a dielectric constant of not more than 3.5. The resin is a copolymer resin obtained by polymerizing a solution containing at least one monofunctional monomer (A) which is soluble in the non-aqueous solvent but becomes insoluble upon polymerization and at least one specified monomer (B) containing an aliphatic group having at least 8 carbon atoms and being copolymerizable with the monomer (A), in the presense of a resin not containing a grafting group polymerizable with the monomers and being soluble in the non-aqueous solvent. The resin may be colored by dissolving at least one organic dye in the dispersion of the resin and heating the mixture. The developer has excellent dispersion stability, redispersibility, fixability and preservability.

摘要翻译： 描述了用于静电摄影的液体显影剂，其至少包含分散在电阻至少为109欧姆·厘米且介电常数不大于3.5的非水溶剂中的树脂。 树脂是通过聚合含有至少一种可溶于非水溶剂但在聚合时变得不溶的单官能单体（A）的溶液和至少一种含至少一个具有至少一个脂族基团的特定单体（B）的溶液而获得的共聚物树脂 8个碳原子并且可与单体（A）共聚，在不含可与单体聚合并可溶于非水溶剂的接枝基团的树脂的存在下。 树脂可以通过将至少一种有机染料溶解在树脂的分散体中并加热混合物而着色。 显影剂具有优异的分散稳定性，再分散性，定影性和保存性。

公开(公告)号：US4837102A

公开(公告)日：1989-06-06

申请号：US94612

申请日：1987-09-09

申请人： Shigeyuki Dan ,  Eiichi Kato ,  Kazuo Ishii ,  Hiroshi Ishibashi ,  Hidefumi Sera

发明人： Shigeyuki Dan ,  Eiichi Kato ,  Kazuo Ishii ,  Hiroshi Ishibashi ,  Hidefumi Sera

IPC分类号： G03G9/13

CPC分类号： G03G9/131 ,  G03G9/133 ,  Y10S430/105

摘要： A liquid developer for electrostatic photography comprising a carrier medium having an electrical resistivity of not less than 10.sup.9 106.cm and a dielectric constant of not more than 3.5 having dispersed therein at least a resin, wherein said resin is a copolymer resin obtained by copolymerizing (1) a solution containing at least one copolymer having an unsaturated bond obtained by copolymerizing at least one monomer (A) represented by formula (I) shown below and at least one monomer (B) represented by formula (II) shown below, and reacting the resulting copolymer with at least one monomer (C) represented by formula (III) shown below, (2) at least one monomer (D) which is soluble in the carrier medium but becomes insoluble upon polymerization, and (3) at least one monomer (E) represented by formula (IV) shown below to obtained a resin dispersion: ##STR1## wherein a.sub.1, a.sub.2 a.sub.3, b.sub.1, b.sub.2, b.sub.3, d.sub.1, d.sub.2, d.sub.3, e.sub.1, e.sub.2, e.sub.3, X, Y, V, Z, L, F, Q, G, R.sub.1, R.sub.2, R.sub.3, T.sub.1, T.sub.2, U, m and n are defined in the specification. The developer is excellent in redispersibility, preservability, stability, image reproducibility, and fixing properties and is capable of producing a master plate for offset printing having excellent printing durability.

摘要翻译： 一种静电摄影用液体显影剂，其特征在于，具有电阻率为109×106.cm以上且介电常数不超过3.5的载体介质，其中至少分散有树脂，其中所述树脂是通过共聚（ 1）含有至少一种具有不饱和键的共聚物的溶液，其通过使至少一种由下述式（I）表示的单体（A）和至少一种如下所示的式（II）表示的单体（B）共聚而获得， 所得共聚物与至少一种由下式（III）表示的单体（C），（2）至少一种可溶于载体介质但在聚合时变得不溶的单体（D），和（3）至少一种 （IV）其中a1，a2 + L，a3（Ⅳ）表示的单体（E），以获得树脂分散体：（ⅰ） ，b1，b2，b3，d1，d2，d3，e1，e2，e3，X，Y，V，Z，L，F，Q，G，R1，R2，R 3，T1，T2，U，m和n在说明书中定义。 显影剂具有优异的再分散性，保存性，稳定性，图像再现性和定影性，并且能够制造具有优异印刷耐久性的胶版印刷母板。

公开(公告)号：US4579803A

公开(公告)日：1986-04-01

申请号：US703584

申请日：1985-02-20

申请人： Eiichi Kato ,  Kazuo Ishii ,  Hiroshi Ishibashi ,  Hidefumi Sera

发明人： Eiichi Kato ,  Kazuo Ishii ,  Hiroshi Ishibashi ,  Hidefumi Sera

IPC分类号： G03G9/13 ,  G03G9/12

CPC分类号： G03G9/131

摘要： A liquid developer for electrostatic photography is described, containing, (i) a toner containing a resin as a main component and (ii) a copolymer comprising two repeating units represented by formula (Ia) or (Ib) and formula (II): ##STR1## or a copolymer comprising three repeating units represented by formula (IIIa) or (IIIb), formula (VI) and formula (V): ##STR2##

摘要翻译： 描述了用于静电摄影的液体显影剂，其包含（i）包含树脂作为主要成分的调色剂和（ii）包含由式（Ia）或（Ib）和式（II）表示的两个重复单元的共聚物： （Ⅰa）（Ⅰa）（Ⅰ）或（Ⅲa）（Ⅲa）（Ⅲa）表示的三重复单元的共聚物， （IIIb）（IV）（V）

公开(公告)号：US4618557A

公开(公告)日：1986-10-21

申请号：US763112

申请日：1985-08-07

申请人： Shigeyuki Dan ,  Kazuo Ishii ,  Eiichi Kato ,  Hidefumi Sera

发明人： Shigeyuki Dan ,  Kazuo Ishii ,  Eiichi Kato ,  Hidefumi Sera

IPC分类号： G03G9/12 ,  G03G9/13

CPC分类号： G03G9/131

摘要： An liquid developer for electrostatic photography is described, comprising a carrier liquid having an electric resistance of at least 10.sup.9 .OMEGA..multidot.cm and a dielectric constant of not more than 3.5, and a resin dispersed therein, said resin being obtained by polymerizing a monomer, which is soluble in said carrier liquid but becomes insoluble upon being polymerized, in the presence of at least one kind of a soluble dispersion stabilizing resin, said soluble dispersion stabilizing resin being a copolymer containing at least recurring units represented by following formulae (IIIa) and (IIIb) obtained by applying a reaction for introducing an unsaturated bond into a copolymer obtained by polymerizing a monomer represented by formula (I) and a monomer represented by formula (III) ##STR1## wherein in formula (I), V represents --O--, --S--, --CO--, --CO.sub.2 --, --SO.sub.2 --, --OCO--, --CONH--, --CONR'-- (wherein R' represents a hydrocarbon group), --NHCO--, NHCO.sub.2 --, or --NHCONH--; X represents --CO.sub.2 H, --COCl, --OH, --SH, --NH.sub.2, --NCO, or --SO.sub.2 CH.sub.2 CH.sub.2 Cl; W represents a hydrocarbon group linking said atomic group V and said atomic group X directly or through a hetero atom, or W represents a chemical bond; and a.sub.1, a.sub.2, and a.sub.3 each represents a hydrogen atom, a hydrocarbon group, a carboxy group, or a carboxy group through a hydrocarbon group;in formula (II), Y represents --O--, --S--, --CO--, --CO.sub.2 --, --SO.sub.2 --, --OCO--, CONH--, --CONR"-- (wherein R" represents a hydrocarbon group), --NHCO--, --NHCO.sub.2 --, or --NHCONH--; R represents a hydrocarbon group; and b.sub.1, b.sub.2, and b.sub.3 each represents a hydrocarbon atom, a hydrocarbon group, a carboxy group, or a carboxy group through a hydrocarbon group;in formula (IIIa), a.sub.1, a.sub.2, a.sub.3, V, and W have the same meanings as defined for formula (I); X' represents --CO.sub.2 --, --COS--, --SCO--, --CONH--, --OCO--, --NHCO--, --NHCONH--, --SO.sub.2 --, --O--, or --S--; Z represents a hydrocarbon group linking said atomic group X' and unsaturated bond directly or through a hetero atom, or Z represents a chemical bond; the total number of atoms of the main chain portion of atomic group --V--W--X'--Z-- must, however, be at least 9; and d.sub.1, d.sub.2, and d.sub.3 each represents a hydrocarbon atom, a hydrocarbon group, a carboxy group, or a carboxy group through a hydrocarbon group; andin formula (IIIb), b.sub.1, b.sub.2, b.sub.3, Y, and R have the same meanings as defined for formula (II).

公开(公告)号：US4792511A

公开(公告)日：1988-12-20

申请号：US025696

申请日：1987-03-13

申请人： Eiichi Kato ,  Ryosuke Itakura ,  Hidefumi Sera ,  Kazuo Ishii

发明人： Eiichi Kato ,  Ryosuke Itakura ,  Hidefumi Sera ,  Kazuo Ishii

IPC分类号： B41N1/14 ,  G03G5/05 ,  G03G13/28 ,  G03G5/087

CPC分类号： G03G5/0589

摘要： An electrophotographic lithographic printing plate precursor is disclosed, comprising a conductive support having provided thereon at least one photoconductive layer containing photoconductive zinc oxide and a resin binder, wherein said resin binder comprises a resin containing at least one functional group capable of forming a carboxylic acid upon being decomposed. The printing plate precursor forms an image faithful to an original and causes no background stains because of improved oil-insensitivity of non-image areas, and a printing plate obtained therefrom exhibits high stain resistance and printing durability.

摘要翻译： 公开了一种电子照相平版印刷版前体，其包含导电性载体，其上设置有至少一层含有光导氧化锌的光电导层和树脂粘合剂，其中所述树脂粘合剂包括含有至少一个能够形成羧酸的官能团的树脂 被分解。 由于非图像区域的油不敏感性提高，印版前体形成忠实于原稿的图像，并且不会产生背景污点，并且由其获得的印刷版显示出高耐污性和印刷耐久性。

公开(公告)号：US4665002A

公开(公告)日：1987-05-12

申请号：US772794

申请日：1985-09-05

申请人： Shigeyuki Dan ,  Kazuo Ishii ,  Eiichi Kato ,  Hidefumi Sera

发明人： Shigeyuki Dan ,  Kazuo Ishii ,  Eiichi Kato ,  Hidefumi Sera

IPC分类号： C08F291/00 ,  C08L33/00 ,  C08L33/02 ,  C08L51/00 ,  C08L51/02 ,  G03G9/12 ,  G03G9/13

CPC分类号： G03G9/131 ,  Y10S430/105

摘要： Disclosed is a liquid electrophotographic developer comprising a resin prepared by polymerizing selected monomers to provide a developer composition having good storage stability and redispersibility.

摘要翻译： 公开了包含通过聚合所选单体制备的树脂以提供具有良好的储存稳定性和再分散性的显影剂组合物的液体电子照相显影剂。

公开(公告)号：US4828952A

公开(公告)日：1989-05-09

申请号：US45998

申请日：1987-05-04

申请人： Eiichi Kato ,  Kazuo Ishii ,  Ryosuke Itakura ,  Hidefumi Sera

发明人： Eiichi Kato ,  Kazuo Ishii ,  Ryosuke Itakura ,  Hidefumi Sera

IPC分类号： B41N1/14 ,  G03G5/05 ,  G03G13/28

CPC分类号： G03G5/0589 ,  G03G5/055

摘要： An electrophotographic printing plate precursor is disclosed, comprising a conductive support having provided thereo1 at least one photoconductive layer containing photoconductive zinc oxide and at least one resin binder, wherein said resin binder contains at least one functional group capable of forming at least one hydroxyl group and at least one carboxyl group upon decomposition. The printing plate precursor can reproduce an image faithful to an original and exhibits satisfactory surface smoothness and electrostatic characteristics. The printing plate produced from the precursor does not cause background stains and exhibits excellent printing durability.

摘要翻译： 公开了一种电子照相印版前体，其包括导电载体，其上设置有至少一个含有光电导氧化锌和至少一种树脂粘合剂的光电导层，其中所述树脂粘合剂含有至少一个能够形成至少一个羟基的官能团和 分解时至少有一个羧基。 印版前体可以再现忠实于原稿的图像，并且表现出令人满意的表面光滑度和静电特性。 由前体制成的印版不会引起背景污渍并且显示出优异的印刷耐久性。

公开(公告)号：US4929526A

公开(公告)日：1990-05-29

申请号：US319895

申请日：1989-03-07

申请人： Eiichi Kato ,  Kazuo Ishii ,  Ryosuke Itakura ,  Hidefumi Sera

发明人： Eiichi Kato ,  Kazuo Ishii ,  Ryosuke Itakura ,  Hidefumi Sera

IPC分类号： G03G5/05

CPC分类号： G03G5/055 ,  G03G5/0589

摘要： An electrophotographic lithographic printing plate precursor obtained from an electrophotographic photoreceptor comprising a conductive support having provided thereon at least one photoconductive layer containing photoconductive zinc oxide and a resin binder, wherein said resin binder comprises a resin containing at least one functional group capable of forming at least one hydroxyl group upon being decomposed. The printing plate precursor exhibits high image reproducibility, stain resistance, and green preservability, and a printing plate obtained therefrom has high resistance to background stain and has printing durability.

摘要翻译： 由电子照相感光体获得的电子照相平版印刷版原版，其包含导电性支持体，其上设置有至少一层含有光导电氧化锌的光电导层和树脂粘合剂，其中所述树脂粘合剂包含含有至少一个能形成至少一个官能团的树脂 一个羟基被分解。 印版前体显示出高图像再现性，耐污染性和绿色保存性，并且由此得到的印刷版具有高抗背景污染性并具有印刷耐久性。

公开(公告)号：US5100751A

公开(公告)日：1992-03-31

申请号：US406015

申请日：1989-09-12

申请人： Eiichi Kato ,  Kazuo Ishii ,  Hiroshi Ishibashi

发明人： Eiichi Kato ,  Kazuo Ishii ,  Hiroshi Ishibashi

IPC分类号： G03G9/12 ,  G03G9/13

CPC分类号： G03G9/131 ,  G03G9/133 ,  Y10S430/105

摘要： Liquid developing agent for electrostatic photography comprising resin grains dispersed in a non-aqueous solvent with an electrical resistance of 10.sup.9 106 cm or more and a permittivity of 3.5 or less, wherein said dispersed resin grains are polymer resin grains produced by a polymerization reaction of a solution containingat least one monofunctional monomer (A) which is soluble in the nonaqueous solvents, but is made insoluble by polymerization, andat least one resin (B) for dispersion stabilization that is soluble in said nonaqueous solvent and is a polymer which has repeating units represented by formula (I) below, a portion of which is crosslinked and in which an acidic group selected fromamong --PO.sub.3 H.sub.2, --SO.sub.3 H, --COOH, --OH, --SH and ##STR1## groups, where R.sup.1 represents a hydrocarbon group, is bonded to only one end of at least one polymer main chain. ##STR2## wherein X.sup.1 represents --COO--, --OCO--, --CH.sub.2 OCO--, --CH.sub.2 COO--, --O-- or --SO.sub.2 --;Y.sup.1 represents an aliphatic group having from 6 to 32 carbon atoms; anda.sup.1 and a.sup.2 may be the same or different and each represents a hydrogen atom, a halogen atom, a cyano group, a hydrocarbon group having from 1 to 8 carbon atoms, --COO--Z.sup.1 or --COO--Z.sup.1 linked via a hydrocarbon group having from 1 to 8 carbon atoms, where Z.sup.1 represents a hydrocarbon group having from 1 to 18 carbon atoms.

摘要翻译： 用于静电摄影的液体显影剂，其包含分散在电阻为109×10 6 cm以上且介电常数为3.5以下的非水溶剂中的树脂颗粒，其中所述分散的树脂颗粒是通过聚合反应产生的聚合物树脂颗粒 含有至少一种可溶于非水溶剂但通过聚合而不溶的单官能单体（A）的溶液和至少一种用于分散稳定化的树脂（B），其可溶于所述非水溶剂中，并且是具有重复的聚合物 由下式（I）表示的单元，其一部分是交联的，其中选自-PO 3 H 2，-SO 3 H，-COOH，-OH，-SH和基团的酸性基团，其中R 1表示烃基 仅与至少一个聚合物主链的一端结合。 （I）其中X1表示-COO-，-OCO - ， - CH 2 OCO - ， - CH 2 COO - ， - O-或-SO 2 - ; Y1表示具有6至32个碳原子的脂族基团; 并且a1和a2可以相同或不同，各自表示氢原子，卤原子，氰基，具有1至8个碳原子的烃基，-COO-Z1或-COO-Z1通过烃基连接 具有1至8个碳原子，其中Z1表示具有1至18个碳原子的烃基。

公开(公告)号：US5055369A

公开(公告)日：1991-10-08

申请号：US325795

申请日：1989-03-20

申请人： Eiichi Kato ,  Hiroshi Ishibashi ,  Kazuo Ishii

发明人： Eiichi Kato ,  Hiroshi Ishibashi ,  Kazuo Ishii

IPC分类号： G03G9/12 ,  G03G9/13

CPC分类号： G03G9/133 ,  G03G9/131

摘要： A liquid developer for electrostatic photography is disclosed. The liquid developer comprises a resin dispersed as grains in a non-aqueous solvent having an electrical resistance of 10.sup.9 .OMEGA.cm or more and a dielectric constant of 3.5 or less, which is characterized in that the dispersed resin grains are copolymer resin grains obtained by polymerizing a solution containing at least one monofunctional monomer (A) which is soluble in the non-aqueous solvent but becomes insoluble therein after polymerization and at least one monofunctional macromonomer (B) which is composed of a polymer moiety having a repeating unit of the following formula (I) and a copolymerizable double bond-containing group of the following formula (II) bonded to only one terminal of the main chain of the polymer moiety and which has a number average molecular weight of 1.times.10.sup.4 or less, in the presence of a resin which is soluble in the non-aqueous solvent and which contains no graft group capable of polymerizing with the monomers; ##STR1## In formula (I), X represents --COO--, --OCO--, --CH.sub.2 OCO--, --CH.sub.2 COO--, --O--, --SO.sub.2 --, ##STR2## R.sub.1 represents a hydrogen atom or a hydrocarbon group having from 1 to 18 carbon atoms;Y represents a hydrocarbon group having from 1 to 22 carbon atoms;a.sub.1 and a.sub.2 each represents a hydrocarbon atom, a halogen atom, a cyano group, a hydrocarbon group having from 1 to 8 carbon atoms, a group --COO--Z or a group --COO--Z as interrupted by a hydrocarbon group having from 1 to 8 carbon atoms; andZ represents a hydrocarbon group having from 1 to 18 carbon atoms;In formula (II), V has the same meaning as X in formula (I); andb.sub.1 and b.sub.2 each is selected from the same groups as a.sub.1 or a.sub.2 in formula (I).The liquid developer has excellent re-dispersibility, storability, image reproducibility, and fixability.