Hard coating material and film comprising the same
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United States of America Patent
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Mar 30, 2004
Grant Date -
N/A
app pub date -
Aug 27, 2001
filing date -
Dec 9, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides heat-curable or UV-curable transparent hard coating materials suitable for forming a low refractive antireflection coating on a substrate such as a film or sheet to reduce reflection of external light or increase light transmittance. A UV-curable or heat-curable transparent hard coating material comprising a UV-curable resin having one or more (meth)acryloyl groups in one molecule or a heat-curable resin and silica-magnesium fluoride hydrate composite colloidal particles such that the transparent film obtained by curing said transparent hard coating material has a refractive index of 1.48 or less.
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