Sheetlike light-sensitive recording
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United States of America Patent
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Feb 19, 1991
Grant Date -
N/A
app pub date -
Feb 3, 1989
filing date -
Feb 5, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A light-sensitive recording element useful for preparing photopolymer flexographic relief printing plates, comprising at least one photopolymerizable recording layer having a thickness of from 0.1 to 7 mm and made up of: from 20 to 99.499% by weight of at least one polymeric binder which may be random ethylene-propylene-alkadiene terpolymers having an ethylene content of from 40 to 80% by weight and a double bond content of from 2 to 20 olefinic double bonds per 1,000 carbon atoms; from 0.001 to 10% by weight of at least one photopolymerization initiator, from 0.5 to 50% by weight of at least one monomer which is compatible with the binder and has at least one photopolymerizable olefinic double bond, and from 0.001 to 2% by weight of at least one inhibitor of thermally initiated polymerization and from 0.0001 to 5% by weight of at least one antioxidant as assistants.
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