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101 条记录 (耗时 0.023 秒)

    Process for Production of Lithographic Printing Plates
    11.
    发明申请
    Process for Production of Lithographic Printing Plates 审中-公开

    公开(公告)号：US20080145790A1

    公开(公告)日：2008-06-19

    申请号：US11815578

    申请日：2006-02-01

    申请人： Harald Baumann ,  Ulrich Fiebag ,  Udo Dwars ,  Michael Flugel ,  Bernd Strehmel ,  Hans-Joachim Timpe

    发明人： Harald Baumann ,  Ulrich Fiebag ,  Udo Dwars ,  Michael Flugel ,  Bernd Strehmel ,  Hans-Joachim Timpe

    IPC分类号： G03F7/12

    CPC分类号： G03F7/322

    摘要： Process for the production of lithographic printing plates comprising (a) providing a lithographic substrate with a hydrophilic surface; (b) applying a negative working radiation-sensitive composition onto the hydrophilic surface, wherein the composition comprises: (i) one or more types of monomers and/or oligomers and/or polymers, each comprising at least one ethylenically unsaturated group accessible to a free-radical polymerization, (ii) at least one sensitizer which in the presence of at least one coinitiator and upon exposure to radiation of a wavelength of 300 to 750 to 1,100 nm initiates the free-radical polymerization of component (i); and (iii) at least one binder with acidic functional groups and is substantially not sensitive to the wavelength range of 480 to 750 nm; (c) image-wise exposure of the resulting negative working lithographic printing plate precursor to radiation selected from the wavelength range of 300 to 750 to 1,100 nm depending on the sensitizer or initiator system used; and (d) removing the non-irradiated areas by means of a treatment with an alkaline developer with a pH value in the range of 9 to 14 comprising (i) water, (ii) one or more alkali hydroxides in an amount sufficient for adjusting a pH value in the range of 9 to 14; and (iii) 1 to 30 wt.-% of at least one compound of formula (I) wherein R1, R2, R3 and R4 are each independently selected from C1-C12 alkyl groups and aryl groups, X is selected from —CH═CH—, —C≡C—, formula (II), formula (III), and formula (IV), n+m results in a value of 2 to 30 and p+q results in a value of 0 to 30, wherein in the case of p+q≠0 the ethylene oxide and propylene oxide units are present as blocks or randomly distributed.

    Use of carboxyl group-containing acetal polymers in light-sensitive compositions and lithographic printing plates
    13.
    发明授权
    Use of carboxyl group-containing acetal polymers in light-sensitive compositions and lithographic printing plates 失效
    在光敏组合物和平版印刷版中使用含羧基的缩醛聚合物

    公开(公告)号：US06808858B2

    公开(公告)日：2004-10-26

    申请号：US10221117

    申请日：2002-12-10

    申请人： Robert Fuss ,  Harald Baumann ,  Udo Dwars ,  Hans-Joachim Timpe

    发明人： Robert Fuss ,  Harald Baumann ,  Udo Dwars ,  Hans-Joachim Timpe

    IPC分类号： G03F7021

    CPC分类号： G03F7/0212 ,  G03F7/0215 ,  G03F7/032

    摘要： The present invention relates to a light-sensitive composition containing: (i) at least one diazonium polycondensation product or at least one system that can be radically polymerized and consists of photoinitiators and unsaturated compounds which can be radically polymerized or at least one hybrid system consisting of a diazonium polycondensation product and a system that can be radically polymerized and consists of photo initiators and unsaturated compounds which can be radically polymerized, (ii) at least one binding agent and optionally one or more exposure indicators, one or more dyes for increasing the image contrast and one or more acids for stabilizing the light-sensitive composition which is characterized in that the binding agent essentially consists of units (A, B, C, D), whereby A corresponds to formula (I), B corresponds to formula (II), C corresponds to formula (III) and D corresponds to formula (IV). The invention also relates to the use thereof for coating printing plates. The invention further relates to printing plates which are coated with said light-sensitive composition.

    Visible radiation sensitive composition and recording material producible therefrom
    17.
    发明授权
    Visible radiation sensitive composition and recording material producible therefrom 失效
    可见的辐射敏感组合物和可从其生产的记录材料

    公开(公告)号：US6051366A

    公开(公告)日：2000-04-18

    申请号：US450968

    申请日：1995-05-25

    申请人： Harald Baumann ,  Hans-Joachim Timpe ,  Hans-Peter Herting

    发明人： Harald Baumann ,  Hans-Joachim Timpe ,  Hans-Peter Herting

    IPC分类号： G03F7/029

    CPC分类号： G03F7/029 ,  Y10S430/115 ,  Y10S430/12 ,  Y10S430/121 ,  Y10S430/127 ,  Y10S430/148

    摘要： A visible radiation sensitive composition is described which comprises a binder, one or more polymerizable compounds containing at least one polymerizable group, and one or more dyes having an absorption range in the emission range of the radiation source, characterized in that said composition comprises as an initiator an initiator system consisting of a metallocene as a photoinitiator and an onium compound as a coinitiator. The visible radiation sensitive composition shows an increased radiation sensitivity compared to the known radiation sensitive compositions and is especially suitable for recording materials such as printing plates, which can, in particular, also be exposed by means of laser radiation in the visible range.

    摘要翻译： 描述了一种可见的辐射敏感组合物，其包含粘合剂，含有至少一个可聚合基团的一种或多种可聚合化合物和一种或多种在辐射源的发射范围内具有吸收范围的染料，其特征在于所述组合物包含作为 引发剂由作为光引发剂的茂金属和作为共引发剂的鎓化合物组成的引发剂体系。 可见的辐射敏感组合物显示与已知的辐射敏感组合物相比增加的辐射敏感性，并且特别适用于记录诸如印刷板的材料，其特别是也可以通过在可见光范围内的激光辐射曝光。

    Method for making lithographic printing plates
    20.
    发明授权
    Method for making lithographic printing plates 有权
    平版印刷版的制作方法

    公开(公告)号：US09329485B2

    公开(公告)日：2016-05-03

    申请号：US14484333

    申请日：2014-09-12

    申请人： Christopher D. Simpson ,  Harald Baumann ,  Michael Flugel ,  Saija Werner ,  Oliver Piestert ,  Udo Dwars

    发明人： Christopher D. Simpson ,  Harald Baumann ,  Michael Flugel ,  Saija Werner ,  Oliver Piestert ,  Udo Dwars

    IPC分类号： G03F7/32 ,  G03F7/38 ,  B41C1/10

    CPC分类号： G03F7/38 ,  B41C1/1008 ,  G03F7/32

    摘要： Lithographic printing plates are provided by imagewise exposing negative-working lithographic printing plate precursors having a negative-working radiation-sensitive imageable layer, followed by contacting with a processing solution that has a pH of at least 7 and up to and including 11. This processing solution also includes component (1) that is a nitrogen-containing base having an atmospheric pressure melting point of at least 40° C.; component (2) that is a non-ionic surfactant that independently has an atmospheric pressure melting point, glass transition temperature, or pour point of at least 40° C.; component (3) that is a hydroxy-containing solution promoter; and component (4) that is a hydrophilic surface protective compound. The method is carried out in a manner such that the exposed and processed precursor is not further treated with any liquid (such as gumming or rinsing solution) between processing and mounting onto a printing press.

    摘要翻译： 平版印刷版通过成像曝光具有负性辐射敏感可成像层的负性平版印刷版原版提供，然后与pH至少为7且高达11并且包括11的处理溶液接触。这种处理 溶液还包括作为大气压熔点至少为40℃的含氮碱的组分（1）。 组分（2），其是独立地具有至少40℃的大气压熔点，玻璃化转变温度或倾点的非离子表面活性剂。 作为含羟基溶液促进剂的组分（3）; 和作为亲水性表面保护性化合物的成分（4）。 该方法以这样的方式进行，使得在处理和安装到印刷机上之前，曝光和加工的前体不被任何液体（例如上胶或漂洗溶液）进一步处理。