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    Surface treatment of soft contact lenses
    3.
    发明授权
    Surface treatment of soft contact lenses 失效
    表面处理软性隐形眼镜

    公开(公告)号：US4687816A

    公开(公告)日：1987-08-18

    申请号：US765886

    申请日：1985-08-14

    申请人： Shaow B. Lin ,  Lyle M. Bowman ,  S. Kumar Chandrasekaran ,  Thomas B. Harvey, III

    发明人： Shaow B. Lin ,  Lyle M. Bowman ,  S. Kumar Chandrasekaran ,  Thomas B. Harvey, III

    IPC分类号： G02C7/04 ,  C08J7/14 ,  G02B1/04 ,  H04N9/72 ,  C08F8/32

    CPC分类号： C08J7/14 ,  G02B1/043 ,  C08J2333/14

    摘要： A process for the treatment of a soft contact lens, to increase its resistance to the deposition thereon and diffusion and accumulation therein of substances which will promote its clouding and discoloration in use, and to improve its mechanical strength, includes treating a hydroxyl group-containing acrylic ester soft contact lens or replica with an organic acid anhydride for a sufficient period of time to treat at least a portion of polymer molecules on the outer surfaces, e.g. by esterifying hydroxyl groups on the molecules and facilitating extraction of organic-type impurities. The process is optionally performed in the presence of a medium which partially swells the surface regions of the lens or replica prior to or during the process.

    摘要翻译： 一种用于治疗软性隐形眼镜的方法，以增加其对其上的沉积的抵抗力，并且在其中扩散和积累将促进其在使用中的浑浊和变色并且提高其机械强度的物质包括处理含羟基的 丙烯酸酯软性隐形眼镜或有机酸酐复制足够的时间以处理外表面上的至少一部分聚合物分子，例如 通过酯化分子上的羟基并促进有机型杂质的萃取。 该方法任选地在介质之前或之后部分溶胀透镜或复制品的表面区域的介质的存在下进行。