Photopolymerizable compositions
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United States of America Patent
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-
Jul 13, 1999
Issued Date -
N/A
app pub date -
Mar 2, 1994
filing date -
Apr 15, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A photopolymerizable composition composed principally of an acrylic linear copolymer, an ethylenically-unsaturated compound and a photoinitiator and adapted to fabricate printed circuit boards. The ethylenically-unsaturated compound contains a specific acrylic ester. The photopolymerizable composition can be developed with an aqueous mild alkaline solution.
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