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Polyanhydride photochromic coating compositon and photochromic articles
Polyanhydride photochromic coating compositon and photochromic articles
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机译:聚酸酐光致变色涂料组合物和光致变色制品
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摘要
Described are articles having a polyanhydride photochromic coating. The coatings exhibit a Fischer microhardness of from 50 to 130 Newtons per mm2 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 polyanhydride photochromic articles.
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