Alkoxyacrylamide photochromic coatings compositions and photochromic articles
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United States of America Patent
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May 9, 2000
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app pub date -
Dec 14, 1998
filing date -
Dec 14, 1998
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Abstract
Described are articles having an alkoxyacrylamide photochromic coating. The coatings exhibit a Fischer microhardness of from 50 to 130 Newtons per mm.sup.2 and desirable photochromic properties, i.e., the formation of darker activated colors and faster rates of photochromic activation and fade when irradiated with ultraviolet light. Also described are alkoxyacrylamide photochromic articles.
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