利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

7 条记录 (耗时 0.022 秒)

    Fountain compositions for use in lithographic printing comprising aqueous solutions of polyacrylamide based polymers and blends of polyacrylamide and polyacrylic acid with an organic chelating agent
    1.
    发明授权
    Fountain compositions for use in lithographic printing comprising aqueous solutions of polyacrylamide based polymers and blends of polyacrylamide and polyacrylic acid with an organic chelating agent 失效
    用于平版印刷的喷射组合物包括聚丙烯酰胺基聚合物的水溶液和聚丙烯酰胺和聚丙烯酸与有机螯合剂的共混物

    公开(公告)号：US4116896A

    公开(公告)日：1978-09-26

    申请号：US727825

    申请日：1976-09-29

    申请人： Walter L. Garrett ,  Ralph E. Friedrich ,  Ralph G. Czerepinski

    发明人： Walter L. Garrett ,  Ralph E. Friedrich ,  Ralph G. Czerepinski

    IPC分类号： B41N3/08 ,  C08L1/28 ,  B41M3/00 ,  B41N3/00

    CPC分类号： B41N3/08

    摘要： Precipitation at relatively high pH levels, e.g. above about 4 or more, in an acidic water/alcohol type fountain composition containing polyvalent metal cations and, as an active polymer component for rendering the non-image areas of a lithographic plate hydrophilic, a polyacrylamide-based polymer having a weight average molecular weight (M.sub.w) of from about 5,000 to about 1,000,000 and having from about 3 to about 70 percent of the carbonyl sites as carboxyl groups, or a blend of polyacrylamide and polyacrylic acid, or the like, is controlled by providing in the fountain composition an effective amount of an organic chelating agent for polyvalent metal cations which is substantially inert with respect to the active polymer component. The suitable chelating agents are further characterized in that at 25.degree. C, each (A) has a 1:1 stability constant with zinc of at least about 10.sup.7.5 ; (B) has a solubility of at least about 0.001 moles per liter in the water/alcohol solvent system over the pH range of from about 3 to about 7; and (C) when in a stable complexed form with polyvalent metal cation(s), has a solubility of at least about 0.001 moles per liter in the water/alcohol solvent system over the pH range of from about 3 to about 7. A preferred chelating agent is the pentasodium salt of diethylenetriaminepentaacetic acid.

    摘要翻译： 在相对较高的pH值下析出，例如 在含有多价金属阳离子的酸性水/醇型润版液组合物中的约4以上，作为使平版印刷版的非图像区亲水性的活性聚合物组分，具有重均分子量的聚丙烯酰胺类聚合物 通过在喷泉组合物中提供有效的（Mw）为约5,000至约1,000,000并且具有约3-约70％的作为羧基的羰基位点或聚丙烯酰胺和聚丙烯酸的共混物等， 相对于活性聚合物组分基本上是惰性的多价金属阳离子的有机螯合剂的量。 合适的螯合剂的特征还在于，在25℃下，每个（A）的锌稳定常数为1：1至少约为107.5; （B）在约3至约7的pH范围内在水/醇溶剂体系中具有至少约0.001摩尔/升的溶解度; 和（C）当以多价金属阳离子稳定复合形式时，在约3至约7的pH范围内，在水/醇溶剂体系中溶解度至少约为0.001摩尔/升。优选的 螯合剂是二亚乙基三胺五乙酸的五钠盐。

    Image-bearing lithographic plates with desensitizing coating
    2.
    发明授权
    Image-bearing lithographic plates with desensitizing coating 失效
    具有脱敏涂层的承载平版印刷版

    公开(公告)号：US4266481A

    公开(公告)日：1981-05-12

    申请号：US53634

    申请日：1979-06-29

    申请人： Walter L. Garrett ,  Ralph G. Czerepinski

    发明人： Walter L. Garrett ,  Ralph G. Czerepinski

    IPC分类号： B41N3/08 ,  B41N1/00 ,  B41N3/00 ,  G03F7/02

    CPC分类号： B41N3/08

    摘要： Aqueous solutions are provided for treating image-bearing lithographic plates. These solutions include as an active polymer component:(a) a polyacrylamide-based polymer wherein from about 3 to about 70 percent of the carbonyl sites are carboxyl groups, and the balance of said sites are amide moieties;(b) a physical blend comprised of from about 97 to about 30 weight percent polyacrylamide and from about 3 to about 70 weight percent polyacrylic acid or an alkali metal or ammonium salt thereof;(c) a physical blend comprised of polyacrylamide, or polyacrylic acid or an alkali metal or ammonium salt thereof, and at least one polyacrylamide-based polymer as described in (a), said polymers being employed in proportions such that of the total carbonyl sites present in the blend, from about 3 to about 70 weight percent are carboxyl groups and the balance are amide moieties;(d) a mixture of any two or more of the foregoing; or(e) a mixture of any one or more of the foregoing with up to about 30 percent by weight hydroxypropyl methylcellulose.The weight average molecular weight (M.sub.w) of each of the polyacrylamide-based polymer, the polyacrylamide, and the polyacrylic acid or salt thereof is from about 10,000 to about 500,000.By employing various concentrations of the above described active component in an aqueous solution, and, optionally, by employing in addition other components, solutions and/or emulsions are provided for the developing, gumming, gum etching, cleaning, storage, and the like, of lithographic plates. The method consists in applying the compositions to an image-bearing plate. As a new article, there is produced a lithographic plate bearing an image and having a coating containing the recited active polymer component.

    摘要翻译： 提供水溶液用于处理含有图像的平版印刷版。 这些溶液包括作为活性聚合物组分：（a）聚丙烯酰胺基聚合物，其中约3-约70％的羰基位点是羧基，其余部分是酰胺部分; （b）由约97至约30重量％的聚丙烯酰胺和约3至约70重量％的聚丙烯酸或其碱金属或铵盐组​​成的物理共混物; （c）由聚丙烯酰胺或聚丙烯酸或其碱金属或铵盐组​​成的物理共混物和如（a）所述的至少一种聚丙烯酰胺类聚合物，所述聚合物的使用比例使得总羰基位置 存在于共混物中，约3至约70重量％为羧基，余量为酰胺部分; （d）上述任何两种或多种的混合物; 或（e）任何一种或多种前述物质与至多约30％（重量）羟丙基甲基纤维素的混合物。 聚丙烯酰胺类聚合物，聚丙烯酰胺和聚丙烯酸或其盐中的每一种的重均分子量（Mw）为约10,000至约500,000。 通过将各种浓度的上述活性组分用于水溶液中，并且任选地通过另外使用其它组分，溶液和/或乳液用于显影，上胶，口香糖蚀刻，清洁，储存等， 的平版印刷版。 该方法包括将组合物施加到图像承载板上。 作为新的制品，制造了带有图像并具有包含所述活性聚合物组分的涂层的平版印刷版。

    Method of treating image-bearing lithographic plates
    3.
    发明授权
    Method of treating image-bearing lithographic plates 失效
    处理承载平版印刷版的方法

    公开(公告)号：US4200688A

    公开(公告)日：1980-04-29

    申请号：US888889

    申请日：1978-03-22

    申请人： Walter L. Garrett ,  Ralph G. Czerepinski

    发明人： Walter L. Garrett ,  Ralph G. Czerepinski

    IPC分类号： B41N3/08 ,  G03F7/02 ,  B41M5/00 ,  B41N1/00

    CPC分类号： B41N3/08 ,  Y10S516/06 ,  Y10S516/07

    摘要： Aqueous solutions are provided for treating image-bearing lithographic plates. These solutions include as an active polymer component:(a) a polyacrylamide-based polymer wherein from about 3 to about 70 percent of the carbonyl sites are carboxyl groups, and the balance of said sites are amide moieties;(b) a physical blend comprised of from about 97 to about 30 weight percent polyacrylamide and from about 3 to about 70 weight percent polyacrylic acid or an alkali metal or ammonium salt thereof;(c) a physical blend comprised of polyacrylamide, or polyacrylic acid or an alkali metal or ammonium salt thereof, and at least one polyacrylamide-based polymer as described in (a), said polymers being employed in proportions such that of the total carbonyl sites present in the blend, from about 3 to about 70 weight percent are carboxyl groups and the balance are amide moieties;(d) a mixture of any two or more of the foregoing; or(e) a mixture of any one or more of the foregoing with up to about 30 percent by weight hydroxypropyl methylcellulose.The weight average molecular weight (Mw) of each of the polyacrylamide-based polymer, the polyacrylamide, and the polyacrylic acid or salt thereof is from about 5,000 to about 1,000,000.By employing various concentrations of the above described active component in an aqueous solution, and, optionally, by employing in addition other components, solutions and/or emulsions are provided for the developing, gumming, gum etching, cleaning, storage, and the like, of lithographic plates. The method consists in applying the compositions to an image-bearing plate. As a new article, there is produced a lithographic plate bearing an image and having a coating containing the recited active polymer component.

    摘要翻译： 提供水溶液用于处理含有图像的平版印刷版。 这些溶液包括作为活性聚合物组分：（a）聚丙烯酰胺基聚合物，其中约3-约70％的羰基位点是羧基，其余部分是酰胺部分; （b）由约97至约30重量％的聚丙烯酰胺和约3至约70重量％的聚丙烯酸或其碱金属或铵盐组​​成的物理共混物; （c）由聚丙烯酰胺或聚丙烯酸或其碱金属或铵盐组​​成的物理共混物和如（a）所述的至少一种聚丙烯酰胺类聚合物，所述聚合物的使用比例使得总羰基位置 存在于共混物中，约3至约70重量％为羧基，余量为酰胺部分; （d）上述任何两种或多种的混合物; 或（e）任何一种或多种前述物质与至多约30％（重量）羟丙基甲基纤维素的混合物。 聚丙烯酰胺类聚合物，聚丙烯酰胺和聚丙烯酸或其盐中的每一种的重均分子量（Mw）为约5,000至约1,000,000。 通过将各种浓度的上述活性组分用于水溶液中，并且任选地通过另外使用其它组分，溶液和/或乳液用于显影，上胶，口香糖蚀刻，清洁，储存等， 的平版印刷版。 该方法包括将组合物施加到图像承载板上。 作为新的制品，制造了带有图像并具有包含所述活性聚合物组分的涂层的平版印刷版。

    Method of desensitizing image-bearing lithographic plates
    4.
    发明授权
    Method of desensitizing image-bearing lithographic plates 失效
    使图像平版印刷版脱敏的方法

    公开(公告)号：US4186250A

    公开(公告)日：1980-01-29

    申请号：US763262

    申请日：1977-01-27

    申请人： Walter L. Garrett ,  Ralph G. Czerepinski

    发明人： Walter L. Garrett ,  Ralph G. Czerepinski

    IPC分类号： B41N3/08 ,  G03F7/02 ,  G03C5/00

    CPC分类号： B41N3/08

    摘要： Aqueous solutions are provided for treating imagebearing lithographic plates. These solutions include as an active polmyer component:(a) a polyacrylamide-based polymer wherein from about 3 to about 70 percent of the carbonyl sites are carboxyl groups, and the balance of said sites are amide moieties;(b) a physical blend comprised of from about 97 to about 30 weight percent polyacrylamide and from about 3 to about 70 weight percent polyacrylic acid or an alkali metal or ammonium salt thereof;(c) a physical blend comprised of polyacrylamide, or polyacrylic acid or an alkali metal or ammonium salt thereof, and at least one polyacrylamide-based polymer as described in (a), said polymers being employed in proportions such that of the total carbonyl sites present in the blend, from about 3 to about 70 weight percent are carboxyl groups and the balance are amide moieties;(d) a mixture of any two or more of the foregoing; or(e) a mixture of any one or more of the foregoing with up to about 30 percent by weight hydroxypropyl methylcellulose.The weight average molecular weight (Mw) of each of the polyacrylamide-based polymer, the polyacrylamide, and the polyacrylic acid or salt thereof is from about 5,000 to about 1,000,000.By employing various concentrations of the above described active component in an aqueous solution, and, optionally, by employing in addition other components, solutions and/or emulsions are provided for the developing, gumming, gum etching, cleaning, storage, and the like, of lithographic plates. The method consists in applying the compositions to an image-bearing plate. As a new article, there is produced a lithographic plate bearing an image and having a coating containing the recited active polymer component.

    摘要翻译： 提供水溶液用于处理成像平版印刷版。 这些溶液包括作为活性聚合物组分：（a）聚丙烯酰胺基聚合物，其中约3-约70％的羰基位点是羧基，所述位点的余量是酰胺部分; （b）由约97至约30重量％的聚丙烯酰胺和约3至约70重量％的聚丙烯酸或其碱金属或铵盐组​​成的物理共混物; （c）由聚丙烯酰胺或聚丙烯酸或其碱金属或铵盐组​​成的物理共混物和如（a）所述的至少一种聚丙烯酰胺类聚合物，所述聚合物的使用比例使得总羰基位置 存在于共混物中，约3至约70重量％为羧基，余量为酰胺部分; （d）上述任何两种或多种的混合物; 或（e）任何一种或多种前述物质与至多约30％（重量）羟丙基甲基纤维素的混合物。 聚丙烯酰胺类聚合物，聚丙烯酰胺和聚丙烯酸或其盐中的每一种的重均分子量（Mw）为约5,000至约1,000,000。 通过将各种浓度的上述活性组分用于水溶液中，并且任选地通过另外使用其它组分，溶液和/或乳液用于显影，上胶，口香糖蚀刻，清洁，储存等， 的平版印刷版。 该方法包括将组合物施加到图像承载板上。 作为新的制品，制造了带有图像并具有包含所述活性聚合物组分的涂层的平版印刷版。

    Emulsion polymerized sec-butyl acrylate latexes suitable for use as pressure sensitive adhesives
    5.
    发明授权
    Emulsion polymerized sec-butyl acrylate latexes suitable for use as pressure sensitive adhesives 失效
    适用于压敏粘合剂的乳液聚合丙烯酸仲丁酯胶乳

    公开(公告)号：US4713412A

    公开(公告)日：1987-12-15

    申请号：US762083

    申请日：1985-08-02

    申请人： Ralph G. Czerepinski ,  Roland E. Gunderman

    发明人： Ralph G. Czerepinski ,  Roland E. Gunderman

    IPC分类号： C08F2/22 ,  C08F220/18 ,  C09J7/02 ,  C09J133/04 ,  C09J133/08 ,  C08L31/00 ,  C08L33/00 ,  C08L35/00

    CPC分类号： C08F220/18 ,  C09J133/08 ,  C09J7/0217 ,  C09J2201/606 ,  Y10T428/31692 ,  Y10T428/31743 ,  Y10T428/31797 ,  Y10T428/31895

    摘要： An emulsion polymerized latex composition suitable for use as a pressure sensitive adhesive having from about 90 to about 99.5 percent by total weight polymer of sec-butyl acrylate and from about 10 to about 0.5 percent by total weight polymer prepared from monomers selected from the group consisting of alkyl esters of acrylic and methacrylic acids wherein the alkyl chain has up to about 20 carbon atoms, monovinylidene aromatics, and ethylenically unsaturated carboxylic acids. Additionally the latex composition can include from about 1 to about 90 percent by weight on a total solids basis of a tackifying resin. Adhesives prepared with the subject latex compositions provide an excellent balance of adhesive properties, i.e., peel and shear adhesion.

    摘要翻译： 适合用作压敏粘合剂的乳液聚合胶乳组合物，其具有按总重量计约90-约99.5重量％的丙烯酸仲丁酯聚合物和约10-约0.5重量％的总重量的聚合物，所述聚合物由选自以下的单体制备： 的丙烯酸和甲基丙烯酸的烷基酯，其中烷基链具有至多约20个碳原子，单亚乙烯基芳族化合物和烯属不饱和羧酸。 另外，胶乳组合物可以包含约1至约90重量％的增粘树脂的总固体。 用目标胶乳组合物制备的粘合剂提供粘合性能，即剥离和剪切粘合性的极好的平衡。