Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1990-12-03
1994-09-20
McCamish, Marion E.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430281, 430284, 430287, 430300, 430910, G03C 1725
Patent
active
053488440
ABSTRACT:
A photosensitive printing medium is compounded from a latex copolymer, a linear thermoplastic, elastomeric block copolymer, a basic nitrogen atom-containing compound, an ethylenically unsaturated compound, and a polymerization initiation system. The printing medium has a microstructure of distinct domains of the latex copolymer and the elastomeric block copolymer in a matrix of the other components. The printing medium is typically supported on a substrate to form a printing plate. The printing medium is photosensitive, and is imaged by exposure to actinic radiation through a photographic negative film. The unexposed portions are washed away in a water dispersive medium, without the use of organic solvents, producing a printing plate which, after drying and postexposure to UV light, is ready for printing.
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Derwent Abstract 90-109629/03, Konishi et al., "Photosensitive resin composite for flexographic plate-has partial internal crosslinked copolymer, liner high molecule, N-contg., cmd., photopolymerisable ethylene unsatd. monomer and initator".
Chapman Mark A.
McCamish Marion E.
Napp Systems Inc.
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