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    • 2. 发明申请
    • METHODS FOR IMAGING AND PROCESSING NEGATIVE-WORKING IMAGEABLE ELEMENTS
    • 用于成像和处理负压工作图像元素的方法
    • US20090098482A1
    • 2009-04-16
    • US11872772
    • 2007-10-16
    • Kevin B. RayTing TaoGary R. MillerEric E. ClarkMelanie Roth
    • Kevin B. RayTing TaoGary R. MillerEric E. ClarkMelanie Roth
    • G03F7/004
    • B41C1/1008B41C2210/04B41C2210/06B41C2210/22B41C2210/24B41C2210/266G03F7/0325G03F7/033
    • An imaged and developed element, such as a lithographic printing plate, is provided by infrared radiation imaging of a negative-working imageable element having an outermost imageable layer that includes a free radically polymerizable component, a free radical initiator composition comprising a diaryliodonium borate, and an infrared radiation absorbing compound. The imageable layer also includes a polymeric binder that is represented by the following Structure (I): -(A)w-(A′)w′-  (I) wherein A represents recurring units comprising a pendant reactive vinyl group, A′ represents recurring units other than those represented by A, w is from about 1 to about 70 mol %, and w′ is from about 30 to about 99 mol %. The imagewise exposed element is developed with a gum to remove only the non-exposed regions. The gum has a pH greater than 7 and up to about 11 and at least 1 weight % of an anionic surfactant.
    • 通过对具有最外可成像层的负性可成像元件的红外辐射成像提供成像和显影元件,例如平版印刷版,其包括可自由基聚合的组分,包含二芳基碘硼酸盐的自由基引发剂组合物和 红外辐射吸收化合物。 可成像层还包括由以下结构(I)表示的聚合物粘合剂:<?in-line-formula description =“In-line formula”end =“lead”?> - (A)w-(A' )w'-(I)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中A表示包含侧链的反应性乙烯基的重复单元,A'表示除代表的那些之外的重复单元 通过A,w为约1至约70mol%,w'为约30至约99mol%。 成像曝光元件用树胶显影,仅去除非曝光区域。 口香糖具有大于7且高至约11和至少1重量%阴离子表面活性剂的pH。