Holographic storage medium comprising polyfunctional epoxy monomers capable of undergoing cationic polymerization
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United States of America Patent
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Jul 4, 2006
Grant Date -
Dec 9, 2004
app pub date -
Jul 13, 2004
filing date -
Aug 28, 2000
priority date (Note) -
Expired
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Abstract
Disclosed is a holographic recording medium. The novel holographic recording mediums disclosed herein comprises: a) at least one polyfunctional epoxide monomer or oligomer which undergoes acid initiated cationic polymerization. Each epoxide in the monomer or oligomer is linked by group comprising a siloxane to a silicon atom and each monomer or oligomer has an epoxy equivalent weight of greater than about 300 grams/mole epoxide; b) a binder which is capable of supporting cationic polymerization; c) an acid generator capable of producing an acid upon exposure to actinic radiation; and optionally d) a sensitizer.
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