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    • 5. 发明授权
    • Photochromic article
    • 光致变色品
    • US07465414B2
    • 2008-12-16
    • US10294058
    • 2002-11-14
    • Carol L. KnoxWilliam H. McDonald
    • Carol L. KnoxWilliam H. McDonald
    • G08B5/23G02F1/01B32B27/18
    • C08G18/44B32B27/08B32B27/40C03C17/3405C08G18/10C08G18/4854C08G18/664C08G18/6674C08G18/758G02B1/041G02B1/105G02B1/11G02B1/14Y10T428/31507Y10T428/31551Y10T428/31554Y10T428/31576Y10T428/3158C08G18/3225
    • Describes an optical article, e.g., an ophthalmic photochromic article, such as a lens, in which the article includes: (1) a transparent substrate, such as a thermoset or thermoplastic plastic substrate, (2) a multiply laminate adjacent to at least one surface of the substrate, the laminate comprising (i) a transparent, thermoplastic polyurethane film, the thermoplastic, polyurethane film providing a desirable light filtering property, e.g., photochromism, and being juxtaposed to the surface of the substrate, the polyurethane being formed from a material comprising polyether-based polyurethane or polycarbonate-based polyurethane, and (ii) a transparent protective film of polymeric material, e.g., polycarbonate film, adjacent to the thermoplastic polyurethane film. Describes also the aforedescribed optical article having an abrasion-resistant coating affixed to the protective film, e.g., an organo-silane abrasion-resistant coating; and an optical article having an antireflective coating adhered to the abrasion-resistant coating.
    • 描述光学制品,例如眼睛光致变色制品,例如透镜,其中制品包括:(1)透明基材,例如热固性或热塑性塑料基材,(2)与至少一种相邻的多层叠层 所述层压体包括(i)透明的热塑性聚氨酯膜,所述热塑性聚氨酯膜,其提供所需的光过滤性质,例如光致变色,并且与所述基材的表面并置,所述聚氨酯由 包含聚醚基聚氨酯或聚碳酸酯基聚氨酯的材料,和(ii)与热塑性聚氨酯膜相邻的聚合材料例如聚碳酸酯薄膜的透明保护膜。 还描述了具有附着在保护膜上的耐磨涂层的上述光学制品,例如有机硅烷耐磨涂层; 以及具有粘附到耐磨涂层上的抗反射涂层的光学制品。