Photochromic compounds and compositions
作者： Darrin R. Dabideen , Sujit Mondal , Meng He , Xiao-Man Dai , Anil Kumar
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摘要: Described herein are compounds generally comprising an indeno[2',3':3,4]naptho[1,2-b] pyran structure. Such may be useful for their photochromic properties, and used in certain compositions. compositions further comprise other and/or materials. Additionally, such suitable preparing articles. Also described methods compounds, compositions,
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