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    Photopolymerization initiator system comprising a spectral sensitizer and a polycarboxylic acid co-initiator
    3.
    发明授权
    Photopolymerization initiator system comprising a spectral sensitizer and a polycarboxylic acid co-initiator 失效
    包含光谱增感剂和多元羧酸共引发剂的光聚合引发剂体系

    公开(公告)号：US5629354A

    公开(公告)日：1997-05-13

    申请号：US395352

    申请日：1995-02-28

    申请人： Paul R. West ,  Jeffery A. Gurney

    发明人： Paul R. West ,  Jeffery A. Gurney

    IPC分类号： G03F7/004 ,  C08F2/50 ,  G03F7/00 ,  G03F7/027 ,  G03F7/029 ,  G03F7/031 ,  G03F7/30

    CPC分类号： C08F2/50 ,  G03F7/031 ,  Y10S430/12 ,  Y10S430/121 ,  Y10S430/127

    摘要： Improved photopolymerization initiator systems are comprised of a spectral sensitizer that sensitizes in the ultraviolet or visible regions of the spectrum and an N-aryl, O-aryl or S-aryl polycarboxylic acid co-initiator. The improved initiator systems are incorporated in photo-polymerizable compositions containing one or more addition-polymerizable ethylenically-unsaturated compounds to form compositions suitable for the preparation of radiation-sensitive layers in lithographic printing plates adapted to be imagewise-exposed with ultraviolet- or visible-light-emitting lasers such as argon-ion lasers and frequency doubled Nd:YAG lasers. Such plates are able to effectively meet the dual requirements of very high photospeed and very good shelf-life required in computer-to-plate systems.

    摘要翻译： 改进的光聚合引发剂体系包括在光谱的紫外或可见光区中敏化的光谱增感剂和N-芳基，O-芳基或S-芳基多元羧酸共引发剂。 改进的引发剂体系结合在含有一种或多种可加成聚合的烯键式不饱和化合物的光聚合组合物中，以形成适于在平版印刷版中制备辐射敏感层的组合物，其适于用紫外或可见光形式曝光， 发光激光器如氩离子激光器和倍频Nd：YAG激光器。 这样的板能够有效地满足计算机对板系统所需的非常高的速度和非常好的保质期的双重要求。

    Positive-working imaging composition and element and method of forming positive image with a laser
    6.
    发明授权
    Positive-working imaging composition and element and method of forming positive image with a laser 失效
    积极的成像组合物和用激光形成正像的元素和方法

    公开(公告)号：US06326123B1

    公开(公告)日：2001-12-04

    申请号：US09370316

    申请日：1999-08-09

    申请人： Paul R. West ,  Jeffery A. Gurney ,  John E. Walls

    发明人： Paul R. West ,  Jeffery A. Gurney ,  John E. Walls

    IPC分类号： G03F7004

    CPC分类号： B41C1/1008 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  Y10S430/106 ,  Y10S430/127 ,  Y10S430/145

    摘要： A positive image can be obtained from a positive-working element that is sensitive to infrared radiation. The element comprises an imaging layer containing an alkali-soluble reactive resin (such as a phenolic resin), an infrared radiation absorbing compound, a thermochemical acid generating compound, and a dissolution inhibitor that has acid-cleavable C—O—C groups. Upon laser exposure, a Bronsted acid is generated which then breaks the bonds of the C—O—C groups, allowing the exposed regions of the reactive resin to be solubilized in an alkaline developer solution.

    摘要翻译： 可以从对红外线辐射敏感的正电极元件获得正像。 该元件包括含有碱溶性反应性树脂（例如酚醛树脂），红外辐射吸收化合物，热化学产酸化合物和具有酸可裂解C-O-C基团的溶解抑制剂的成像层。 激光曝光后，产生布朗斯台德酸，然后破坏C-O-C基团的键，允许反应性树脂的暴露区域溶解在碱性显影剂溶液中。

    MICRO-LENS ENHANCED ELEMENT
    8.
    发明申请
    MICRO-LENS ENHANCED ELEMENT 有权
    微透镜增强元件

    公开(公告)号：US20100254015A1

    公开(公告)日：2010-10-07

    申请号：US12416180

    申请日：2009-04-01

    申请人： Harry Booyens ,  Murray Figoy ,  Daniel J. Blondal ,  Paul R. West

    发明人： Harry Booyens ,  Murray Figoy ,  Daniel J. Blondal ,  Paul R. West

    IPC分类号： G02B27/10 ,  B41J2/01

    CPC分类号： B42D25/382 ,  B42D2035/20 ,  B42D2035/44 ,  G02B3/005 ,  G02B27/2214

    摘要： A micro-lens enhanced element comprises a substrate bearing sequences of printed image elements, each sequence containing image elements from more than one image. A transparent spacer layer is coated over the interlaced image strips. Lenticular lenses are fashioned over each sequence of image elements by deposition of a transparent layer of low surface energy polydimethyl siloxane based material and ablation of the same to create strips of material abhesive to a polymeric lens forming material between consecutive sequences of printed image elements. During deposition of a liquid lens forming material, the liquid withdraws from the liquid abhesive low surface energy strips to form a meniscus, thereby providing lenticular lenses. The transparent low surface energy material comprises a near infrared dye with low absorption in the visible range of the spectrum to render the material both transparent and ablateable by infrared laser.

    摘要翻译： 微透镜增强元件包括承载印刷图像元素序列的基底，每个序列包含来自多于一个图像的图像元素。 透明间隔层涂覆在隔行图像条上。 通过沉积低表面能聚二甲基硅氧烷基材料的透明层并消除其形成了在每个图像元件序列上的透镜，以在连续的印刷图像元件序列之间形成与形成聚合物透镜的材料粘合的条带。 在液体透镜形成材料的沉积期间，液体从液体粘合的低表面能量带中退出以形成弯月面，由此提供双凸透镜。 透明的低表面能材料包括在光谱的可见范围内具有低吸收的近红外染料，以使材料透明和可被红外激光烧蚀。

    Aqueous developer for lithographic printing plates which provides improved oleophilicity
    10.
    发明授权
    Aqueous developer for lithographic printing plates which provides improved oleophilicity 失效
    用于平版印刷版的水性显影剂，其提供改善的亲油性

    公开(公告)号：US5380623A

    公开(公告)日：1995-01-10

    申请号：US992949

    申请日：1992-12-17

    申请人： Gary R. Miller ,  Paul R. West ,  Melanie A. Felker

    发明人： Gary R. Miller ,  Paul R. West ,  Melanie A. Felker

    IPC分类号： G03F7/32

    CPC分类号： G03F7/322

    摘要： Aqueous alkaline developing compositions useful in the development of negative-working lithographic printing plates are comprised of an organic solvent, an anionic surface active agent, an alkali metal tetraborate, an aliphatic monocarboxylic acid, an aliphatic dicarboxylic acid, a long chain aliphatic amine and sufficient alkaline buffering system to provide an alkaline pH. The developing composition is resistant to oxidation, highly effective in dissolution-type processing, able to effectively desensitize the background areas of the printing plate, and effective in enhancing the oleophilicity of the image areas of the printing plate.

    摘要翻译： 用于开发负性平版印刷版的水性碱性显影组合物由有机溶剂，阴离子表面活性剂，碱金属四硼酸盐，脂族一元羧酸，脂族二羧酸，长链脂族胺和足够的 碱性缓冲系统提供碱性pH。 显影组合物耐氧化，在溶解型处理中高度有效，能够有效地使印版的背景区域脱敏，并有效提高印版的图像区域的亲油性。