POROUS HOLOGRAPHIC FILM
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United States of America Patent
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Issued Date -
Sep 17, 2009
app pub date -
Dec 9, 2005
filing date -
Dec 14, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a method for the manufacture of a holographic film. The method includes a polymerizable composition that comprises monomers with high reactivity, monomers with low reactivity and a non-reactive material. The method comprises a patterned exposure to obtain a patterned polymerization of the monomers with high reactivity and a subsequent polymerization to polymerize also monomers with low reactivity to form a solid film. The method gives a holographic film with a high refractive index modulation and a modulated porosity.
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