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United States of America Patent
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Feb 17, 1987
Grant Date -
N/A
app pub date -
Jun 5, 1984
filing date -
Jun 5, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Polyol(allyl carbonate) monomer, e.g., diethylene glycol bis(allyl carbonate), containing 1-[(2,6-dibromo-4-methylphenyl)amino]-4-hydroxy-9,10-anthracenedione in amounts sufficient to selectively absorb at least 90 percent of the visible and ultraviolet light segments of the electromagnetic spectrum below 550 nanometers is described. Also described are ophthalmic articles prepared by curing the monomer.
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