公开(公告)号：US06140389A

公开(公告)日：2000-10-31

申请号：US9506

申请日：1998-01-20

申请人： Eiichi Kato ,  Sadao Osawa ,  Kazuo Ishii

发明人： Eiichi Kato ,  Sadao Osawa ,  Kazuo Ishii

IPC分类号： C09D11/00 ,  G03G13/26 ,  G03G13/28 ,  C09D11/02 ,  C09D11/10

CPC分类号： C09D11/36 ,  G03G13/26 ,  G03G13/283

摘要： An oil-based ink for a printing plate by an ink jet process comprising spraying an oil-based ink comprising at least resin particles dispersed in a nonaqueous carrier liquid having an electric resistance of 10.sup.9 .OMEGA.cm or more and a dielectric constant of 3.5 or less on an image receiving layer of a lithographic printing plate precursor dropwise from a nozzle to form an image, and then desensitizing a non-image area of the image receiving layer by a chemical reaction to prepare a lithographic printing plate, the image receiving layer being formed on a water-resistant support and comprising zinc oxide and a binding resin; and a surface of the image receiving layer having a contact angle with water of 50.degree. or more, wherein the resin particles dispersed are copolymer resin particles obtained by polymerization granulation of a solution comprising (i) and (ii): (i) at least one monofunctional monomer (A) which is soluble in a nonaqueous solvent which is at least miscible with the nonaqueous carrier liquid and becomes insoluble in the nonaqueous solvent by polymerization; (ii) at least one resin for dispersion stabilization (P) whcih is soluble in the nonaqueous solvent and is a polymer comprising a repeating unit, wherein a part of the polymer is crosslinked and a polymerizable double bond group which is copolymerizable with the monomer (A) is combined with only one end of at least one main chain of the polymer, and a method for preparing a printing plate by an ink jet process using the ink.

摘要翻译： 一种喷墨方法的印刷用油性油墨，其特征在于，喷涂含有至少分散在电阻为10 9Ω·cm以上，介电常数为3.5以下的非水载体液中的树脂颗粒的油性油墨 在平版印刷版前体的图像接收层上从喷嘴滴落形成图像，然后通过化学反应对图像接收层的非图像区域进行脱敏以制备平版印刷版，形成图像接收层 在防水载体上并包含氧化锌和粘合树脂; 和图像接收层的与水接触角为50°以上的表面，其中分散的树脂颗粒是通过将包含（i）和（ii）的溶液聚合造粒得到的共聚物树脂颗粒：（i）至少 一种单官能单体（A），其可溶于非水溶剂中，该非水溶剂与非水性载体液体至少可混溶，并通过聚合而变得不溶于非水溶剂; （ii）至少一种用于分散稳定化的树脂（P）可溶于非水溶剂，并且是包含重复单元的聚合物，其中一部分聚合物交联并且可与单体共聚的可聚合双键基团 A）仅与聚合物的至少一个主链的一端结合，以及通过使用该油墨的喷墨方法制备印刷版的方法。

公开(公告)号：US6120655A

公开(公告)日：2000-09-19

申请号：US9542

申请日：1998-01-20

申请人： Kazuo Ishii ,  Sadao Osawa ,  Eiichi Kato

发明人： Kazuo Ishii ,  Sadao Osawa ,  Eiichi Kato

IPC分类号： B41C1/10 ,  B41M5/00 ,  B41N1/14 ,  C09D11/00 ,  D21H19/20 ,  H05F3/00

CPC分类号： C09D11/36 ,  B41C1/1066

摘要： A process for producing a lithographic printing plate for platemaking by the ink-jet system comprising forming images by jetting oily ink toward an image receiving layer formed on a water-resistant support with the aid of the electrostatic field, wherein the water-resistant support is a paper support both sides of which are covered with a resin. The process of the present invention can yield a large number of printed sheets with sharp images.

摘要翻译： 一种用于通过喷墨系统制造用于制版的平版印刷版的方法，包括通过在静电场的帮助下将油性墨水喷射到形成在耐水支撑体上的图像接收层来形成图像，其中防水支撑是 一个纸张支架，两面都用树脂覆盖。 本发明的方法可以产生大量具有清晰图像的打印片材。

公开(公告)号：US5580690A

公开(公告)日：1996-12-03

申请号：US357150

申请日：1994-12-15

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/05

CPC分类号： G03G5/0589 ,  G03G5/0592

摘要： An electrophotographic light-sensitive material which has improved electrostatic characteristics and image forming performance and is excellent particularly in reproducibility of highly accurate image using a liquid developer and image forming performance upon a scanning exposure system using a laser beam of a low power.The electrophotographic light-sensitive material contains, as a binder resin, at least one resin selected from a low molecular weight resin (A.sub.1) formed from a macromonomer containing a polymer component of formula (I) and a monomer of the formula (I) and having a polar group bonded at one terminal of the main chain thereof, a low molecular weight resin (A.sub.2) formed from a macromonomer containing at random polar groups and a low molecular weight resin (A.sub.3) formed from a macromonomer containing polar groups as a block, and a resin (B) which is a medium to high molecular weight starlike polymer comprising an organic molecule having bonded thereto at least three polymer chains each containing a polymer component containing a specified polar group and a polymer component of formula (I). ##STR1## wherein a.sup.1 and a.sup.2 : hydrogen, halogen, a cyano group, a hydrocarbon group, --COOR.sup.4 or --COOR.sup.4 bonded via a hydrocarbon group (R.sup.4 : hydrocarbon group), and R.sup.3 : a hydrocarbon group.

摘要翻译： 具有改进的静电特性和成像性能的电子照相感光材料，特别是使用液体显影剂的高精度图像的再现性和使用低功率的激光的扫描曝光系统的图像形成性能优异的电子照相感光材料。 电子照相感光材料包含作为粘合剂树脂的至少一种选自由含有式（I）的聚合物组分和式（I）的单体的大分子单体形成的低分子量树脂（A1）和式（I）的单体形成的树脂和 在其主链的一个末端具有极性基团，由含有无规极性的大分子单体形成的低分子量树脂（A2）和由含有极性基团的大分子单体形成的低分子量树脂（A3）作为嵌段 和作为中分子量高分子量星状聚合物的树脂（B），其包含具有键合至少三个聚合物链的有机分子，每个聚合物链均含有含有特定极性基团的聚合物组分和式（I）的聚合物组分。 式（I）其中a1和a2：通过烃基（R4：烃基）键合的氢，卤素，氰基，烃基，-COOR4或-COOR4，R3：烃基。

公开(公告)号：US5573879A

公开(公告)日：1996-11-12

申请号：US146001

申请日：1993-11-02

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： C08F293/00 ,  C08F297/02 ,  C08L53/00 ,  G03G5/05 ,  G03G5/087 ,  G03G5/09

CPC分类号： C08F293/00 ,  C08F297/026 ,  C08L53/00 ,  G03G5/0589 ,  G03G5/0592

摘要： An electrophotographic light-sensitive material which has improved electrostatic characteristics and image forming performance and is excellent particularly in reproducibility of highly accurate image using a liquid developer and image forming performance upon a scanning exposure system using a laser beam of a low power.The electrophotographic light-sensitive material contains, as a binder resin, at least one resin (A) which has a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 and contains not less than 30% by weight of a polymer component of the formula (I) and from 0.5 to 15% by weight of a specified polar group-containing polymer component and at least one resin (B) which is a starlike polymer having a weight average molecular weight of from 3.times.10.sup.4 to 1.times.10.sup.6 and comprising an organic molecule having bonded thereto at least three polymer chains each containing a polymer component containing a specified polar group and a polymer component of the formula (I). ##STR1## wherein a.sup.1 and a.sup.2 : hydrogen, halogen, a cyano group, a hydrocarbon group, --COOR.sup.4 or --COOR.sup.4 bonded via a hydrocarbon group (R.sup.4 : hydrocarbon group), and R.sup.3 : a hydrocarbon group.

摘要翻译： PCT No.PCT / JP92 / 00579 Sec。 371日期：1993年11月2日 102（e）日期1993年11月2日PCT提交1992年5月1日PCT公布。 出版物WO92 / 20015 日期1992年11月12日具有改进的静电特性和成像性能的电子照相感光材料，特别是使用液体显影剂的高精度图像的再现性和使用低分辨率的激光的扫描曝光系统的图像形成性能优异的电子照相感光材料 功率。 电子照相感光材料含有作为粘合剂树脂的至少一种重均分子量为1×10 3至2×10 4的至少一种树脂（A），并且含有不少于30重量％的式（I ）和0.5〜15重量％的特定的含极性基团的聚合物组分和至少一种树脂（B），其是重均分子量为3×10 14至1×10 6的星状聚合物，并且包含与其结合的有机分子 至少三个聚合物链，其各自含有含有特定极性基团的聚合物组分和式（I）的聚合物组分。 式（I）其中a1和a2：通过烃基（R4：烃基）键合的氢，卤素，氰基，烃基，-COOR4或-COOR4，R3：烃基。

公开(公告)号：US5558966A

公开(公告)日：1996-09-24

申请号：US454492

申请日：1995-05-30

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/05

CPC分类号： G03G5/0589 ,  G03G5/0592

摘要： An electrophotographic light-sensitive material which has improved electrostatic characteristics and image forming performance and is excellent particularly in reproducibility of highly accurate image using a liquid developer and image forming performance upon a scanning exposure system using a laser beam of a low power.The electrophotographic light-sensitive material contains, as a binder resin, at least one resin selected from a low molecular weight resin (A.sub.1) formed from a macromonomer containing a polymer component of formula (I) and a monomer of the formula (I), a low molecular weight resin (A.sub.2) formed from a macromonomer containing at random polar groups and a low molecular weight resin (A.sub.3) formed from a macromonomer containing polar groups as a block, and a resin (B) which is a medium to high molecular weight AB block copolymer comprising an A block containing a specified polar group and a B block containing a polymer component of formula (I). ##STR1## wherein a.sup.1 and a.sup.2 : hydrogen, halogen, a cyano group, a hydrocarbon group, --COOR.sup.4 or --COOR.sup.4 bonded via a hydrocarbon group (R.sup.4 : hydrocarbon group), and R.sup.3 : a hydrocarbon group.

摘要翻译： 具有改进的静电特性和成像性能的电子照相感光材料，特别是使用液体显影剂的高精度图像的再现性和使用低功率的激光的扫描曝光系统的图像形成性能优异的电子照相感光材料。 电子照相感光材料含有选自由含有式（I）的聚合物组分和式（I）的单体的大分子单体形成的低分子量树脂（A1）中的至少一种树脂作为粘合剂树脂， 由含有无规极性的大分子单体形成的低分子量树脂（A2）和由含有极性基团的大分子单体形成的低分子量树脂（A3）和作为中等至高分子量的树脂（B） 重量AB嵌段共聚物，其包含含有特定极性基团的A嵌段和含有式（I）的聚合物组分的B嵌段。 式（I）其中a1和a2：通过烃基（R4：烃基）键合的氢，卤素，氰基，烃基，-COOR4或-COOR4，R3：烃基。

公开(公告)号：US5242772A

公开(公告)日：1993-09-07

申请号：US794891

申请日：1991-11-20

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/02 ,  G03G5/05 ,  G03G13/28

CPC分类号： G03G5/0589 ,  G03G13/28 ,  G03G5/0208

摘要： According to the present invention, a lithographic printing plate of direct image type capable of preventing the occurrence of background stains and having good printing durability and a process for the production thereof are provided. The process comprises (a) forming an image on a lithographic printing plate precursor comprising a base and a light-insensitive image receptive layer provided on the base, wherein the image receptive layer comprises resin grains comprising at least one polymer component having (1) at least one of a functional group represented by at least one of Formula (I) and Formula (II): ##STR1## wherein --W.sub.1 -- and --W.sub.2 -- each respectively represents --SO.sub.2 --, --CO-- or --OOC--; n.sub.1 and n.sub.2 each respectively represents 0 or 1; and X represents a halogen atom, or (2) having at least one of a formyl group and a functional group represented by Formula (III): ##STR2## wherein R.sub.1 and R.sub.2, which are the same or different, each represents hydrocarbon groups or R.sub.1 and R.sub.2 are organic residual radicals which are combined with each other to form a ring and then (b) subjecting a non-image area other than the image area to oil-desensitizing treatment with a solution containing a hydrophilic compound containing a substituent having a Pearson's nucleophilic constant, n, of at least 5.5.

摘要翻译： 根据本发明，提供一种能够防止背景污渍发生并具有良好的印刷耐久性的直接成像型平版印刷版及其制造方法。 该方法包括（a）在平版印刷版原版上形成图像，该平版印刷版前体包含基底和设置在基底上的光不敏感的图像接收层，其中图像接收层包含树脂颗粒，其包含至少一种聚合物组分，其具有（1） 由式（I）和式（II）中的至少一种表示的官能团中的至少一个：式（I）其中-W 1和-W 2各自各自表示-SO 2 - ，-CO-或-OOC-; n1和n2分别表示0或1; X表示卤原子，或（2）具有式（III）表示的甲酰基和官能团中的至少一种：式（III）其中R1和R2各自相同或不同， 表示烃基或R 1和R 2是相互结合形成环的有机残基，然后（b）使图像区域以外的非图像区域用含有亲水性化合物的溶液进行脱油处理 具有至少5.5的Pearson亲核常数n的取代基。

公开(公告)号：US5183721A

公开(公告)日：1993-02-02

申请号：US495953

申请日：1990-03-20

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/05

CPC分类号： G03G5/0589 ,  G03G5/0582 ,  G03G5/0592

摘要： An electrophotographic light-sensitive material is disclosed. The light-sensitive material comprises a support having provided thereon a photoconductive layer containing at least inorganic photoconductive particles and a binder resin, wherein the binder comprises a copolymer comprising at least a monofunctional macromonomer (M) having a weight average molecular weight of not more than 2.times.10.sup.4 and a monomer represented by the formula (III) as defined in the specification, the macromonomer (M) comprising at least one polymer component represented by the formulae (IIa) and (IIb) as defined in the specification and at least one polymer component containing at least one polar group, and the macromonomer (M) having a polymerizable double bond group represented by the formula (I) as defined in the specification bonded to only one terminal of the main chain of the polymer. The electrophotographic light-sensitive material has excellent electrostatic characteristics, moisture resistance and durability.

公开(公告)号：US5154997A

公开(公告)日：1992-10-13

申请号：US661150

申请日：1991-02-27

申请人： Eiichi Kato ,  Seishi Kasai ,  Kazuo Ishii

发明人： Eiichi Kato ,  Seishi Kasai ,  Kazuo Ishii

IPC分类号： C08F299/00 ,  C08L29/00 ,  C08L29/10 ,  C08L33/04 ,  C08L33/06 ,  G03G5/05 ,  G03G5/08 ,  G03G5/087 ,  G03G13/28

CPC分类号： G03G5/0546 ,  G03G5/0589

摘要： An electrophotographic light-sensitive material is disclosed. The light-sensitive material comprises a support having provided thereon a photoconductive layer containing at least one inorganic photoconductive substance, a spectral sensitizer, and a binder resin which contains at least one binder resin (A) and at least one binder resin (B) as defined in the specification. The light-sensitive material is excellent in electrostatic charging characteristics and pre-exposure fatigue resistance.

公开(公告)号：US5147752A

公开(公告)日：1992-09-15

申请号：US607328

申请日：1990-10-30

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/05

CPC分类号： G03G5/0589 ,  G03G5/0546 ,  G03G5/0592

摘要： A process for producing an electrophotographic light-sensitive material comprising a support having provided thereon a photoconductive layer containing an inorganic photoconductive substance and a binder resin is disclosed. The method comprises mixing the inorganic photoconductive substance and the binder resin to prepare a dispersion for forming the photoconductive layer, and coating the dispersion on the support, wherein the binder resin contains at least one resin (A) which has a weight average molecular weight of from 1.times.10.sup.3 to 1.times.10.sup.4 contains a repeating unit represented by the formula (I) specified above as a polymer component, has a crosslinked structure prior to the preparation of the dispersion for forming the photoconductive layer, and has at least one acidic group bonded at only one terminal of at least one polymer main chain. The electrophotographic light-sensitive material obtained according to the present invention is excellent in electrostatic characteristics and anti-humidity.

摘要翻译： 公开了一种用于制造电子照相感光材料的方法，其包括其上设置有包含无机光电导物质和粘合剂树脂的光电导层的载体。 该方法包括混合无机光电导物质和粘合剂树脂以制备用于形成光电导层的分散体，并将该分散体涂布在载体上，其中粘合剂树脂含有至少一种重均分子量为 1×10 3〜1×10 4含有作为聚合物成分的上述式（I）所示的重复单元，在制备形成光电导层的分散液之前具有交联结构，并且具有至少一个仅在一个上结合的酸性基团 至少一个聚合物主链的末端。 根据本发明获得的电子照相感光材料具有优异的静电特性和抗湿性。

公开(公告)号：US5134051A

公开(公告)日：1992-07-28

申请号：US400853

申请日：1989-08-30

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/05

CPC分类号： G03G5/0589 ,  G03G5/0546

摘要： An electrophotographic photoreceptor comprising a support having provided thereon at least one photoconductive layer containing at least inorganic photoconductive particles and a binder resin is disclosed, wherein said 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 comprising not less than 30% by weight of at least one repeating unit (a-i) represented by formula (I) or (II): ##STR1## wherein X.sub.1 and X.sub.2 each represents a hydrogen atom, a hydrocarbon group having from 1 to 10 carbon atoms, a chlorine atom, a bromine atom, --COY.sub.1 or --COOY.sub.2, wherein Y.sub.1 and Y.sub.2 each represents a hydrocarbon group having from 1 to 10 carbon atoms, provided that both X.sub.1 and X.sub.2 do not simultaneously represent a hydrogen atom; and W.sub.1 and W.sub.2 each represents a mere bond or a linking group containing from 1 to 4 linking atoms which connects --COO-- and the benzene ring, and from 0.5 to 15% by weight of at least one repeating unit (a-ii) containing at least one acidic group selected from --PO.sub.3 H.sub.2, --SO.sub.3 H, --COOH, ##STR2## wherein R represents a hydrocarbon group or --OR' (R' represents a hydrocarbon group having from 1 to 22 carbon atoms), and a cyclic acid anhydride-containing group.