Photopolymerizable composition and dry film resist
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United States of America Patent
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Mar 7, 2000
Grant Date -
N/A
app pub date -
Jun 26, 1998
filing date -
Jun 30, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An ultraviolet and/or visible light curing photopolymerizable composition comprising as essential components: (a) a thermoplastic polymer obtained by copolymerization of at least one monomer selected from among .alpha.,.beta.-unsaturated carboxyl group-containing monomers and another monomer, (b) a crosslinking monomer with at least two ethylenic unsaturated groups per molecule and (c) an ultraviolet and/or visible light polymerization initiator comprising a quaternary boron salt and a sensitizing dye, as well as a dry film resist containing the composition as its main component.
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