Photoactive materials
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United States of America Patent
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Feb 17, 2009
Grant Date -
Dec 30, 2004
app pub date -
Jul 15, 2002
filing date -
Jul 17, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
Photoreactive dendrimers comprising a core portion, branching units and terminal groups, wherein at least one terminal group and/or branching unit is a photoreactive group and wherein the photo reactive groups include preferably cinnamates, coumarins, benzylidenephthalimidines, benzylideneacetophenones, diphenylacetylenes stilbazoles, uracyl, quinolinone, maleinimides, or cinnamylidene acetic acid derivatives and are able to undergo photocyclization, in particular [2+2]-photocyclization.
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