Positive-working imageable elements and method of use
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United States of America Patent
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Jan 20, 2015
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May 20, 2010
app pub date -
Nov 20, 2008
filing date -
Nov 20, 2008
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Abstract
An infrared radiation-sensitive positive-working imageable element has a substrate and single imageable layer that includes a first polymeric binder having urethane or urea moieties in its backbone. The first polymeric binder is also insoluble in water and soluble in a weakly alkaline solution. This imageable element can be imaged and processed using weakly alkaline processing solutions that are free of silicates and metasilicates, which processing solutions may also be used to “gum” the imaged and developed printing surface.
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