Photosensitive resin printing plate precursor and method of manufacturing printing plate
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 10, 2020
Grant Date -
Feb 7, 2019
app pub date -
Sep 2, 2016
filing date -
Sep 2, 2016
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Abstract
A photosensitive resin printing plate precursor includes at least a substrate and a photosensitive resin layer, the photosensitive resin layer containing: (A) a partially saponified polyvinyl acetate, (B) a polyamide having basic nitrogen, (C) a compound having an ethylenic double bond, and (D) a photopolymerization initiator; the photosensitive resin layer including at least an underlayer and a printing surface layer; the substrate, the underlayer, and the printing surface layer being included in this order; and the photosensitive resin layer containing, as the partially saponified polyvinyl acetate (A), those (A1) having an average polymerization degree of 1,200 to 2,600 in the printing surface layer and those (A2) having an average polymerization degree of 400 to 800 in the underlayer.
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