Photosensitive printing plate
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United States of America Patent
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Sep 15, 1998
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app pub date -
Nov 26, 1997
filing date -
Mar 22, 1995
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Abstract
A negative photosensitive lithographic printing plate comprising an aluminum or organic polymer support having a surface roughness Ra of 0.25 to 0.60 .mu.m and having provided thereon a photopolymerizable photosensitive layer comprising a polymerizable monomer, a photopolymerization initiator and a sensitizer having an absorbing wavelength of 400 to 1,000 nm, wherein the support has a functional group on its surface at the side of the photosensitive layer, and wherein the functional group has an unsaturated bond which can undergo a radical addition reaction and an Si atom which covalently bonds to an aluminum atom, an Si atom, or a carbon atom in the support via an oxygen atom.
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