公开(公告)号：US06207332B1

公开(公告)日：2001-03-27

申请号：US08988282

申请日：1997-12-10

Applicant: Takao Nakayama ,  Shigeyuki Dan ,  Ryousuke Itakura ,  Hideyuki Hattori ,  Hiroshi Tashiro

Inventor： Takao Nakayama ,  Shigeyuki Dan ,  Ryousuke Itakura ,  Hideyuki Hattori ,  Hiroshi Tashiro

IPC: G03G1302

CPC classification number: G03G13/28 ,  G03G5/10 ,  G03G13/02 ,  Y10S430/102

Abstract: A process for producing a lithographic printing plate which is inexpensive, is not elongated, can be readily handled and can provide a uniform image, is disclosed. The process comprises the steps of: using an original plate for lithographic printing comprising a support having a volume electric resistance of more than 1×1010 &OHgr;·cm, a conductive layer having a volume electric resistance of 1×105 &OHgr;·cm or less, provided on one surface of the support, and a photoconductive layer containing zinc oxide and a binder, provided on the conductive layer, conducting negative corona discharge from the side of the photoconductive layer of the original plate for lithographic printing, and during this corona discharge, contacting a conductor having earth potential with at least the support of the original plate, thereby charging the photoconductive layer of the original plate for lithographic printing.

Abstract translation: 公开了一种制造廉价的未拉伸的平版印刷版的方法，可以容易地处理并且可以提供均匀的图像。 该方法包括以下步骤：使用原版平版印刷，其中包括体积电阻大于1×10 10欧米汞厘米的载体，具有体积电阻为1×10 5欧姆·厘米或更小的导电层，设置在一个表面上 的载体和包含氧化锌和粘合剂的光电导层，设置在导电层上，从用于平版印刷的原版的光电导层侧进行负电晕放电，并且在该电晕放电期间，接触具有接地的导体 至少具有原版支撑的电位，从而对原版的光电导层充电以进行平版印刷。

公开(公告)号：US5298357A

公开(公告)日：1994-03-29

申请号：US856726

申请日：1992-03-24

Applicant: Hideyuki Hattori ,  Eiichi Kato ,  Kazuo Ishii

Inventor： Hideyuki Hattori ,  Eiichi Kato ,  Kazuo Ishii

IPC: G03G9/12 ,  G03G9/125 ,  G03G9/13 ,  G03G13/10 ,  G03G9/135

CPC classification number: G03G9/131 ,  G03G9/125

Abstract: A liquid developer for electrostatic photography which comprises a non-aqueous solvent having an electric resistance of at least 10.sup.9 .OMEGA..multidot.cm and a dielectric constant of not higher than 3.5, at least toner grains comprising a resin as a main component, and (a) at least one compound (A) having an effect for increasing the amount of charge and (b) at least one compound (B) having an effect for reducing the amount of charge. There is also disclosed a duplicating method using a liquid developer as described above, which is useful for developing a large number of electrophotographic materials over a long period of time.

Abstract translation: 一种用于静电摄影的液体显影剂，其包括至少具有至少109（Ω）* cm的电阻和介电常数不高于3.5的非水溶剂，至少包含树脂作为主要成分的调色剂颗粒和（ a）至少一种具有增加电荷量的作用的化合物（A）和（b）至少一种具有减少电荷量的化合物（B）。 还公开了使用如上所述的液体显影剂的复制方法，其可用于长时间显影大量电子照相材料。

公开(公告)号：US5112716A

公开(公告)日：1992-05-12

申请号：US507535

申请日：1990-04-11

Applicant: Eiichi Kato ,  Hideyuki Hattori

Inventor： Eiichi Kato ,  Hideyuki Hattori

IPC: G03G9/13

CPC classification number: G03G9/131 ,  Y10S430/105

Abstract: A liquid developer for electrostatic photography is disclosed. The liquid developer comprises at least resin grains dispersed in a non-aqueous solvent having an electric resistance of at least 10.sup.9 .OMEGA.cm and a dielectric constant of not higher than 3.5, wherein the dispersed resin grains are polymer resin grains obtained by polymerizing a solution containing (1) at least a mono-functional monomer (A) which is soluble in the aforesaid non-aqueous solvent but becomes insoluble therein by being polymerized in the presence of a dispersion-stabilizing resin (BA) soluble in the non-aqueous solvent, which is a polymer containing a recurring unit represented by the formula (I) described in the specification, at least a part of the main chain of the polymer being crosslinked, and, optionally, (2) a monomer (B-1) represented by the formula (II-1) described in the specification. The liquid developer of this invention is excellent in re-dispersibility, storability, stability, image-reproducibility, and fixability.

公开(公告)号：US5106716A

公开(公告)日：1992-04-21

申请号：US537723

申请日：1990-06-14

Applicant: Eiichi Kato ,  Hideyuki Hattori

Inventor： Eiichi Kato ,  Hideyuki Hattori

IPC: G03G9/13

CPC classification number: G03G9/131 ,  G03G9/133 ,  Y10S430/105

Abstract: A liquid developer for electrostatic photography is disclosed. The liquid developer of this invention comprises resin grains dispersed in a non-aqueous solvent having an electric resistance of at least 10.sup.9 .OMEGA.cm and a dielectric constant of not higher than 3.5, wherein the dispersed resin grains are copolymer resin grains obtained by polymerizing a solution containing at least one mono-functional monomer (A) which is soluble in the above non-aqueous solvent but becomes insoluble in the non-aqueous solvent by being polymerized, in the presence a dispersion-stabilizing resin, which is soluble in the non-aqueous solvent and is composed of at least one recurring unit represented by the formulae (Ia) and (Ib) having a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 as defined in the specification.The liquid developer according to the present invention is excellent in redispersibility, storability, stability, image-reproducibility and fixability.

Abstract translation: 公开了一种用于静电摄影的液体显影剂。 本发明的液体显影剂包含分散在电阻至少为10欧姆·厘米且介电常数不高于3.5的非水溶剂中的树脂颗粒，其中分散的树脂颗粒是通过聚合溶液获得的共聚树脂颗粒 含有至少一种可溶于上述非水溶剂的单官能单体（A），但在可溶于非水溶剂的分散稳定树脂存在下，通过聚合而变得不溶于非水溶剂， 并且由如本说明书中定义的至少一种由式（Ia）和（Ib）表示的重复单元由重均分子量为1×10 3至2×10 4组成。 根据本发明的液体显影剂在再分散性，保存性，稳定性，图像再现性和定影性方面都是优异的。

公开(公告)号：US5041352A

公开(公告)日：1991-08-20

申请号：US473535

申请日：1990-02-01

Applicant: Eiichi Kato ,  Kazuo Ishii ,  Hideyuki Hattori

Inventor： Eiichi Kato ,  Kazuo Ishii ,  Hideyuki Hattori

IPC: G03G9/13

CPC classification number: G03G9/131 ,  G03G9/133

Abstract: A liquid developer for electrostatic photography comprising a resin dispersed in a non-aqueous solvent having an electric resistance of at least 10.sup.9 .OMEGA.cm and a dielectric constant of not higher than 3.5, wherein the dispersed resin is a polymer resin obtained by polymerizing a solution containing at least one monofunctional monomer (A) which is soluble in the aforesaid non-aqueous solvent but become insoluble after being polymerized, in the presence of a dispersion-stabilizing resin which is soluble in the aforesaid non-aqueous solvent and at least one oligomer (B) having a number average molecular weight of not more than 1.times.10.sup.4 and having at least one polar group selected from a carboxy group, a sulfo group, a hydroxy group, a formyl group, an amino group, a phosphono group, and ##STR1## wherein R.sup.0 represents a hydrocarbon group or --OR.sup.1, (wherein R.sup.1 represents a hydrocarbon group) bonded to only one terminal of the main chain of a polymer composed of a recurring unit represented by following formula (II): ##STR2## wherein V.sup.1, R.sup.2, a.sup.1 and a.sup.2 are as defined in the specification. The liquid developer is excellent in dispersion stability, re-dispersibility, and fixability, and also is capable of forming an offset printing plate having excellent ink-receptivitiy for printing ink and excellent printing durability by electrophotography.

Abstract translation: 一种用于静电照相的液体显影剂，其包含分散在电阻至少为10 9Ω·cm，介电常数不高于3.5的非水溶剂中的树脂，其中所述分散树脂是通过聚合含有 至少一种在可溶于上述非水溶剂的分散稳定树脂和至少一种低聚物的存在下，其可溶于前述非水溶剂但在聚合后变得不溶的单官能单体（A） B）数均分子量不大于1×10 4，并且具有至少一个选自羧基，磺基，羟基，甲酰基，氨基，膦酰基的极性基团， 其中R 0表示烃基或-OR 1（其中R 1表示烃基），其仅与由以重复单元表示的重复单元组成的聚合物的主链的仅一个末端键合 下式（II）：其中V1，R2，a1和a2如说明书中所定义。 液体显影剂的分散稳定性，再分散性和定影性优异，并且还能够形成具有优异的用于印刷油墨的油墨接受性和通过电子照相术获得优异印刷耐久性的胶版印刷版。

公开(公告)号：US20090081592A1

公开(公告)日：2009-03-26

申请号：US12237702

申请日：2008-09-25

Applicant: Akimitsu HAIJIMA ,  Hideyuki Hattori

Inventor： Akimitsu HAIJIMA ,  Hideyuki Hattori

IPC: G03F7/26 ,  G03F7/00

CPC classification number: B41N3/08

Abstract: A fountain solution composition for lithographic printing characterized by comprising at least one acyclic hydrocarbon diol compound, having 6 to 8 carbon atoms in total and two —OH groups, wherein said two —OH groups bind to carbon atoms at 1- and 2-positions, respectively; said fountain solution composition can be used to improve blanket piling.

Abstract translation: 一种用于平版印刷的润版液组合物，其特征在于包含至少一种总碳原子数为6至8个的无环烃二醇化合物和两个-OH基团，其中所述两个-OH基团在1位和2位上与碳原子结合， 分别; 所述润版液组合物可用于改善毯子打桩。

公开(公告)号：US6022654A

公开(公告)日：2000-02-08

申请号：US168135

申请日：1998-10-07

Applicant: Takao Nakayama ,  Shigeyuki Dan ,  Ryosuke Itakura ,  Hideyuki Hattori ,  Hiroshi Tashiro

Inventor： Takao Nakayama ,  Shigeyuki Dan ,  Ryosuke Itakura ,  Hideyuki Hattori ,  Hiroshi Tashiro

IPC: G03G5/08 ,  G03G5/10 ,  G03G13/02 ,  G03G13/26 ,  G03G13/28

CPC classification number: G03G13/02 ,  G03G13/28 ,  G03G5/10 ,  Y10S430/102

Abstract: Disclosed is a process for producing a lithographic printing plate using a lithographic printing plate precursor comprising a support having a volume resistivity of more than 1.times.10.sup.10 .OMEGA..cm, an electrically conductive layer provided on one surface of the support and having a volume resistivity of 1.times.10.sup.5 .OMEGA..cm or less and a photoconductive layer provided on the electrically conductive layer and containing zinc oxide and a binder, the process comprising applying negative corona discharge to the lithographic printing plate precursor from the photoconductive layer side and at this discharging, contacting an electric conductor having an earth potential at least with the support of the lithographic printing plate precursor to electrically charging the photoconductive layer of the lithographic printing plate precursor.

Abstract translation: 公开了一种使用平版印刷版前体制备平版印刷版的方法，该平版印刷版前体包含体积电阻率大于1×10 10欧姆·厘米的载体，导电层设置在载体的一个表面上，体积电阻率为1×10 5欧米茄 cm以下的光电导层和设置在导电层上并含有氧化锌和粘合剂的光电导层，该方法包括从光电导层侧向平版印刷版前体施加负电晕放电，并且在该放电时，使具有 至少在平版印刷版原版的支持下，对平版印刷版原版的光导电层进行充电的地电位。

公开(公告)号：US5141835A

公开(公告)日：1992-08-25

申请号：US697179

申请日：1991-05-08

Applicant: Eiichi Kato ,  Hideyuki Hattori

Inventor： Eiichi Kato ,  Hideyuki Hattori

IPC: G03G9/13

CPC classification number: G03G9/133 ,  G03G9/131

Abstract: A liquid developer for electrostatic photography is disclosed. The liquid developer comprises at least resin grains dispersed in a non-aqueous solvent having an electric resistance of at least 10.sup.9 cm and a dielectric constant of not higher than 3.5, wherein the dispersed resin grains are copolymer resin grains obtained by polymerizing a solution containing (1) at least a mono-functional monomer (A) which is soluble in the above-described non-aqueous solvent but becomes insoluble therein by being polymerized, and, optionally, a monomer (C) represented by the formula (III) or a monomer (D) represented by the formula (IV), in the presence of a dispersion-stabilizing resin soluble in the non-aqueous solvent, which is a graft type copolymer. The liquid developer of the present invention is excellent in re-dispersibility, storability, stability, image-reproducibility, and fixability, and provide a master plate for offset printing having high printing durability.

公开(公告)号：US5112718A

公开(公告)日：1992-05-12

申请号：US535674

申请日：1990-06-11

Applicant: Eiichi Kato ,  Hideyuki Hattori

Inventor： Eiichi Kato ,  Hideyuki Hattori

IPC: C08F299/00 ,  G03G9/13

CPC classification number: G03G9/133 ,  C08F299/00 ,  Y10S430/105

Abstract: A liquid developer for electrostatic photography is disclosed. The liquid developer comprises resin grains dispersed in a non-aqueous solvent having an electric resistance of at least 10.sup.9 .OMEGA. cm and a dielectric constant of not higher than 3.5, wherein the dispersed resin grains are polymer resin grains obtained by polymerizing a solution containing at least one kind of a mono-functional monomer (A) which is soluble in the non-aqueous solvent but becomes insoluble in the non-aqueous solvent by being polymerized, in the presence of a dispersion-stabilizing resin which is soluble in the non-aqueous solvent and is a comb-like copolymer comprising (1) at least a mono-functional macromonomer (M) having a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 and (2) at least a monomer represented by formula (III) as defined in the specification.The liquid developer according to the present invention is excellent in re-dispersibility, storability, stability, image-reproducibility, and fixability.

Abstract translation: 公开了一种用于静电摄影的液体显影剂。 液体显影剂包含分散在电阻至少为10Ω欧姆·厘米且介电常数不高于3.5的非水溶剂中的树脂颗粒，其中分散的树脂颗粒是聚合物树脂颗粒，其通过聚合至少包含至少 一种可溶于非水溶剂但通过聚合在不溶于非水溶剂的单官能单体（A）中，在可溶于非水溶剂的分散稳定树脂的存在下， 溶剂，并且是梳状共聚物，其包含（1）至少一种重均分子量为1×10 3至2×10 4的单官能大分子单体（M）和（2）至少由式（III）表示的单体，如 规格。 根据本发明的液体显影剂的再分散性，保存性，稳定性，图像再现性和定影性优异。

公开(公告)号：US5108864A

公开(公告)日：1992-04-28

申请号：US603482

申请日：1990-10-26

Applicant: Eiichi Kato ,  Hideyuki Hattori

Inventor： Eiichi Kato ,  Hideyuki Hattori

IPC: G03G9/13

CPC classification number: G03G9/133 ,  Y10S430/105

Abstract: A liquid developer for electrostatic photography is disclosed. The liquid developer comprises resin grains dispersed in a non-aqueous solvent having an electric resistance of at least 10.sup.9 .OMEGA. cm and a dielectric constant of not higher than 3.5, wherein the dispersed resin grains asre copolymer resin grains obtained by polymerizing a solution containing at least one kind of a mono-functional monomer (A) which is soluble in the non-aqueous solvent but becomes insoluble in the non-aqueous solvent by being polymerized, in the presence of a dispersion-stabilizing resin which is soluble in the non-aqueous solvent and is a comb-like copolymer comprising at least (1) a mono-functional macromonomer (M) having a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 and (2) a monomer represented by the general formula (III) described below, the mono-functional macromonomer (M) comprising at least one polymer component corresponding to a repeating unit represented by the general formula (IIa) or (IIb) described below and at least one polymer component containing at least one polar group selected from --COOH, --PO.sub.3 H.sub.2, --SO.sub.3 H, --OH, ##STR1## wherein R.sub.1 represents --R.sub.2 or -OR.sub.2 (wherein R.sub.2 represents a hydrocarbon group)), --SH, a formyl group and an amino group, and the monofunctional macromonomer (M) having a polymerizable double bond group represented by the general formula (I) described below bonded to only one terminal of the main chain thereof; ##STR2## wherein X.sub.0 represents --COO--, --OCO--, --CH.sub.2 OCO--, --CH.sub.2 COO--, or --O--, --SO.sub.2 --, --CO--, ##STR3## wherein R.sub.11 represents a hydrogen atom or a hydrocarbon group), and a.sub.1 and a.sub.2, which may be the same or different, each represents a hydrogen atom, a halogen atom, a cyano group, a hydrocarbon group, --COO--Z.sub.1 or --COO--Z.sub.1 bonded via a hydrocarbon group (wherein Z.sub.1 represents a hydrogen atom or a hydrocarbon group); ##STR4## wherein X.sub.1 has the same meaning as X.sub.0 in the general formula (I); Q.sub.1 represents an aliphatic group having from 1 to 22 carbon atoms or an aromatic group having from 6 to 12 carbon atoms; b.sub.1 and b.sub.2, which may be the same or different, have the same meaning as a.sub.1 and a.sub.2 in the general formula (I); and V represents --CN, --CONH.sub.2, or ##STR5## (wherein Y represents a hydrogen atom, a halogen atom, an alkoxy group or --COOZ.sub.2 (wherein Z.sub.2 represents an alkyl group, an aralkyl group, or an aryl group)); ##STR6## wherein X.sub.2 has the same meaning as X.sub.0 in the general formula (I); Q.sub.2 has the same meaning as Q.sub.1 in the general formula (IIa); and d.sub.1 and d.sub.2, which may be the same or different, have the same meaning as a.sub.1 and a.sub.2 in the general formula (I), with the proviso that, in the component of the mono-functional macromonomer (M) represented by the general formula (II) and in the component of the monomer represented by the general formula (III), at least one of Q.sub.1 and Q.sub.2 represents an aliphatic group having from 10 to 22 carbon atoms.