Ultraviolet absorbing polymers comprising 2-(2'-hydroxy-5'-acryloyloxyalkoxyphenyl)-2H-benzotriazole
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United States of America Patent
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Dec 29, 1987
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N/A
app pub date -
Dec 1, 1986
filing date -
Dec 1, 1986
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Expired
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Abstract
Ultraviolet light absorbing compositions comprising 2-(2'-hydroxy-5'-acryloyloxyalkoxyphenyl(-2H-benzotrizoles, and copolymers thereof with one or more other monomers copolyermizable therewith, particularly acrylic monomers, are useful in the manufacture of ocular devices, particularly intraocular lenses and contact lenses.
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