PHOTOCURABLE RESIN COMPOSITION, DRY FILM, CURED PRODUCT, AND PRINTED CIRCUIT BOARD
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United States of America Patent
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app pub date -
Feb 20, 2009
filing date -
Mar 29, 2007
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Abandoned
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Abstract
Provided is a photocurable resin composition developable with a rare alkali solution, including a carboxylic acid-containing resin (A), a coloring agent (B) composed of a compound having an aminoantraquinone skeleton, a photopolymerization initiator (C), and a compound (D) having two or more ethylenically unsaturated groups within one molecule thereof, the composition being sufficiently colored while controlling absorption in the ultraviolet region using the coloring agent composed of a compound having an aminoantraquinone skeleton, having high sensitivity to ultraviolet and laser exposure, and providing good dry tack in a state of a dry coating film.
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