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US 2003/0143485 A1Published application
Printing plate
AssigneeAlcoa Inc.
InventorsDavid S. Bennett, Sallie L. Blake, Daniel L. Serafin, Jean Ann Skiles, Robert E. Bombalski, Clinton S. Zediak, Gary A. Nitowski, Joseph D. Guthrie
Life of this patent
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Abstract
A printing plate for computer-to plate lithography having a laser-ablatable member supported by a substrate. At least one portion of the laser-ablatable member is formed form an acrylic polymer containing laser-sensitive particles. The laser-sensitive particles absorb imaging radiation and cause the portion of the laser-ablatable member containing the laser sensitive particles and any overlying layers to be ablated.
Claims9
A printing plate comprising:
- a substrate having a principal surface;
- and
- a laser-ablatable member positioned on said principal surface, said laser-ablatable member comprising a polymeric composition comprising (i) an acrylic polymer, said acrylic polymer comprising an organophosphorous compound, and (ii) a plurality of laser-sensitive particles, said polymeric composition being ablatable when a laser irradiates said laser-sensitive particles.
Dependencies are inferred from the claim text.