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    • 7. 发明授权
    • Photochromic optical article
    • 光致变色光学制品
    • US07261843B2
    • 2007-08-28
    • US10793582
    • 2004-03-04
    • Carol L. KnoxEric M. KingJames P. Colton
    • Carol L. KnoxEric M. KingJames P. Colton
    • G02B5/23G02F1/01B32B27/18
    • C09D175/06C08G18/0823C08G18/4063C08G18/44C08G18/4812C08G18/4854C08G18/6692C09D175/08C09D175/16Y10T428/31507Y10T428/31515
    • Describes a photochromic article, e.g., an ophthalmic photochromic plastic article, such as a lens, in which the article includes (1) a rigid substrate, e.g., a transparent substrate such as a glass or organic polymeric substrate, as for example, a thermoset or thermoplastic substrate, (2) a photochromic polymeric coating appended to at least a portion of at least one surface of the substrate, the photochromic polymeric coating containing a photochromic amount of at least one organic photochromic material, e.g., spirooxazine, naphthopyran, diarylethene and/or fulgide, and (3) a thermally cured transparent thermoset polymeric coating superposed on, e.g., coherently appended to, the photochromic coating, the thermally cured polymeric coating being harder than the photochromic polymeric coating. Describes also the aforedescribed photochromic article having an abrasion-resistant coating affixed to the thermally cured polymer coating, e.g., an abrasion-resistant coating comprising an organo silane; and a photochromic article having an antireflective coating affixed to the abrasion-resistant coating.
    • 描述光致变色制品,例如眼睛光致变色塑料制品,例如透镜,其中制品包括(1)刚性基底,例如透明基底,例如玻璃或有机聚合物基底,例如热固性 或热塑性基材,(2)附着到基材的至少一个表面的至少一部分的光致变色聚合物涂层,所述光致变色聚合物涂层含有光致变色量的至少一种有机光致变色材料,例如螺恶嗪,萘并吡喃,二芳基乙烯和 /或fulgide,和(3)叠加在例如相干地附着到光致变色涂层上的热固化的透明热固性聚合物涂层,热固化聚合物涂层比光致变色聚合物涂层硬。 还描述了上述具有固化到热固化聚合物涂层上的耐磨涂层的光致变色制品,例如包含有机硅烷的耐磨涂层; 以及具有附着在耐磨涂层上的抗反射涂层的光致变色制品。