发明授权
US06268055B1 Photochromic epoxy resin coating composition and articles having such a coating 有权
光致变色环氧树脂涂料组合物和具有这种涂层的制品

Photochromic epoxy resin coating composition and articles having such a coating
摘要:
Described are photochromic epoxy resin coatings that meet commercially acceptable “cosmetic” standards for optical coatings. Also described are articles having such coatings. The coatings exhibit a Fischer microhardness of from 50 to 150 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.
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