Low refractive index coating composition for use in antireflection polymer film coatings and manufacturing method
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United States of America Patent
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May 20, 2008
Grant Date -
Jul 6, 2006
app pub date -
Dec 30, 2004
filing date -
Dec 30, 2004
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Abstract
A silicone-modified fluoropolymer is formed by first dissolving a fluoropolymer in an organic solvent, the fluoropolymer having at least one monomer of vinylidene fluoride coupled to a hexafluoropropylene monomer unit, and subsequently reacting the mixture with an amino silane coupling agent to form an aminosilane-modified fluoropolymer. The aminosilane fluoropolymer is subsequently heated and partially condensed with an oligomer of a silane compound including alkoxy silane. The resultant composition is suitable for use as a low refractive index layer in an antireflection coating on an optical substrate.
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