Tri-functional UV-absorbing compounds and use thereof
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United States of America Patent
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Dec 4, 2012
Grant Date -
Jul 1, 2010
app pub date -
Dec 17, 2009
filing date -
Dec 30, 2008
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Abstract
Described herein are tri-functional compounds useful in the production of ophthalmic lenses. The compounds are composed of UV absorber having a polymerization initiator directly or indirectly bonded to the ultraviolet absorber, and an olefinic group directly or indirectly bonded to the ultraviolet absorber. Also described herein are polymers and ophthalmic lenses produced from the tri-functional compounds described herein.
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