Photocrosslinkable polyurethanes
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United States of America Patent
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Jan 13, 2009
Grant Date -
Sep 14, 2006
app pub date -
Aug 4, 2004
filing date -
Aug 7, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
carboxylic acid, and (c) optionally at least one aliphatic or cycloaliphatic diol having 2 to 30 carbon atoms, to whose carbon chain at least one carboxyl group is covalently bonded. The polyurethanes are suitable, alone or as a mixture with other reactive components, for thermal and/or photochemical crosslinking in crosslinkable compositions for the production of mouldings, coatings and in particular solder masks.
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