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    • 3. 发明授权
    • Method for preparing master plate useful for making lithographic printing plate without need of dampening water
    • 制备用于制作平版印刷版而不需要润版水的主板的方法
    • US06849386B2
    • 2005-02-01
    • US10413575
    • 2003-04-15
    • Tsumoru HiranoKoji Sonokawa
    • Tsumoru HiranoKoji Sonokawa
    • G03F7/004B41C1/10B41N1/00B41N1/14G03F7/00G03F7/075G03F7/11
    • B41C1/1016B41C2201/04B41C2201/14B41C2210/02B41C2210/08B41C2210/16B41C2210/24B41N1/003
    • An object of the present invention is to provide a method for manufacturing such a dry lithographic printing master plate that has eliminated uneven plate performance and more specifically that provides a stable adhesiveness between a heat-sensitive layer and a silicone rubber layer as well as a high aging stability of a coating solution. Provided is a method for preparing a master plate useful for making a dry lithographic printing plate comprising at least a heat-sensitive layer and a silicone rubber layer which are stacked in this order on a substrate, said method comprising the steps of: (1) dissolving a diorgano-polysiloxane and a curing catalyst in a solvent; (2) dissolving a cross-linking agent in a solvent; (3) mixing the solution obtained in the step (1) with the solution obtained in the step (2); and (4) applying the mixture obtained in the step (3) over the heat-sensitive layer to thereby form the silicone rubber layer.
    • 本发明的目的是提供一种制造这种干式平版印刷母板的方法,其消除了不平坦的板性能,​​更具体地说,在热敏层和硅橡胶层之间提供了稳定的粘附性以及高的 涂层溶液的老化稳定性。 本发明提供一种制备用于制备干性平版印刷版的母版的方法,所述干版印刷版至少包括在基片上依次堆叠的热敏层和硅橡胶层,所述方法包括以下步骤:(1) 将二有机聚硅氧烷和固化催化剂溶解在溶剂中; (2)将交联剂溶解在溶剂中; (3)将步骤(1)中获得的溶液与步骤(2)中获得的溶液混合; 和(4)将在步骤(3)中获得的混合物涂覆在热敏层上,从而形成硅橡胶层。
    • 4. 发明授权
    • Photosensitive lithographic printing plate requiring no fountain solution
    • 不需要润版液的感光平版印刷版
    • US5629136A
    • 1997-05-13
    • US568372
    • 1995-12-06
    • Tatsuji HigashiKoji SonokawaTsumoru Hirano
    • Tatsuji HigashiKoji SonokawaTsumoru Hirano
    • G03F7/00G03F7/075G03F7/11
    • G03F7/0752
    • A presensitized plate for use in making a lithographic printing plate requiring no fountain solution excellent in scratch resistance and press life is disclosed, which comprises support and, formed thereon in order from support, a photosensitive layer and a silicone rubber layer, wherein the silicone rubber layer is a crosslinked and cured product obtained by addition reaction of (a) polysiloxane having alkenyl groups with (b) hydrogen polysiloxane having .tbd.Si--H groups so that the number of .tbd.Si--H groups in (b) is from 11 to 30 based on the number of alkenyl groups in (a), wherein polysiloxane (a) has at least two alkenyl groups directly bonded to silicon atoms per molecule, average repeating number x of --[Si(R.sup.1)(R.sup.2)--O].sub.x -- group of 100 .ltoreq.x.ltoreq.600 (wherein R.sup.1 and R.sup.2 each represents a alkyl group, aryl group, aralkyl group, alkenyl group, polydimethylsiloxane group or halogenated hydrocarbon group, provided that 70% or more of R.sup.1 and R.sup.2 are methyl groups), and alkyl groups or alkenyl groups directly bonded to the terminal silicon atoms, and wherein the hydrogen polysiloxane (b) is formula (I):R.sup.3 --Si(R.sup.4).sub.2 --O--[SiH(R.sup.4)--O].sub.y --[Si(R.sup.4).sub.2 --O].sub.z --Si(R.sup.4).sub.2 --R.sup.3 (I)wherein R.sup.3 represents a hydrogen atom or a methyl group; R.sup.4 represents an alkyl group, an aryl group, or an aralkyl group, provided that 70% or more of R.sup.4 is a methyl group; y is from 4 to 100, and z is from 0 to 100.
    • 公开了一种用于制造不需要耐刮擦性和冲压寿命优异的润版液的平版印刷版的预敏化板,其包括载体,并且从载体上依次形成感光层和硅橡胶层,其中硅橡胶 层是通过(a)具有烯基的聚硅氧烷与(b)具有3个Si-H基团的氢聚硅氧烷的加成反应得到的交联固化物,使得(b)中的3BOND Si-H基团的数量为11〜30 基于(a)中的烯基数,其中聚硅氧烷(a)具有至少两个每分子直接与硅原子键合的烯基, - [Si(R 1)(R 2)-O] x - 基团,其中R 1和R 2各自表示烷基,芳基,芳烷基,烯基,聚二甲基硅氧烷基或卤代烃基,其中R 1和R 2的70%或更多为甲基 基团)和烷基或醇 (b)为式(I):R3-Si(R4)2-O- [SiH(R4)-O] y- [Si(R4)2) -O] z-Si(R 4)2 -R 3(I)其中R 3表示氢原子或甲基; R4表示烷基,芳基或芳烷基,条件是R4的70%以上为甲基。 y为4〜100,z为0〜100。