Polyol photosensitizers, carrier gas UV laser ablation sensitizers, and other additives and methods for making and using same
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United States of America Patent
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May 21, 2013
Grant Date -
Aug 2, 2012
app pub date -
Jan 30, 2012
filing date -
Apr 21, 2006
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Abstract
Disclosed are photo sensitizers that include a polyol moiety covalently bonded to a fused aromatic moiety. Also disclosed is a method for improving UV laser ablation performance of a coating, such as a cationic UV curable coating, by incorporating an oxalyl-containing additive into the cationic UV curable or other coating. Oxalyl-containing sensitizers having the formula Q-O—C(O)—C(O)—O—R1 wherein Q represents a fused aromatic moiety and R1 is an alkyl or aryl group, are also disclosed, as are oxalyl-containing oxetane resins, oxalyl-containing polyester polyols, and cationic UV curable coating formulations that include oxalyl-containing additives.
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