METHOD FOR ENHANCING WATER CONTENT OF SILICONE HYDROGEL CONTACT LENS
    1.
    发明申请
    METHOD FOR ENHANCING WATER CONTENT OF SILICONE HYDROGEL CONTACT LENS 失效
    提高硅胶接触透镜水含量的方法

    公开(公告)号:US20120214899A1

    公开(公告)日:2012-08-23

    申请号:US13273407

    申请日:2011-10-14

    IPC分类号: A61F2/14

    摘要: The present invention provides a method for producing a silicone hydrogel having a high water content. The method comprises the following steps: (a) polymerizing a monomer mixture to form the silicone hydrogel, wherein the monomer mixture comprises at least one silicon-containing monomer and at least one ionic monomer; and (b) placing the silicone hydrogel in an alkaline solution for at least 20 minutes, wherein the alkaline solution has a pH not less than 7.5 and the ionic monomer is present in an amount not less than 0.7 wt % based on the total dry weight of the silicone hydrogel.

    摘要翻译: 本发明提供一种水含量高的硅氧烷水凝胶的制造方法。 该方法包括以下步骤:(a)聚合单体混合物以形成硅氧烷水凝胶,其中单体混合物包含至少一种含硅单体和至少一种离子单体; 和(b)将硅氧烷水凝胶置于碱性溶液中至少20分钟,其中碱性溶液的pH值不低于7.5,离子单体的存在量相对于总干重为0.7重量% 的硅酮水凝胶。