Copolymerizable methine and anthraquinone compounds and articles containing them
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United States of America Patent
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Issued Date -
Jun 1, 2006
app pub date -
Nov 10, 2005
filing date -
Nov 22, 2004
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Abandoned
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Abstract
This invention relates to polymerizable ultraviolet light absorbers and yellow colorants and their use in ophthalmic lenses. In particular, this invention relates to polymerizable ultraviolet light absorbing methine compounds and yellow compounds of the methine and anthraquinone classes that block ultraviolet light and/or violet-blue light transmission through ophthalmic lenses.
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