Process of manufacturing contact lenses with measured exposure to oxygen
    4.
    发明授权
    Process of manufacturing contact lenses with measured exposure to oxygen 有权
    制造隐形眼镜测量暴露于氧气的过程

    公开(公告)号:US06610220B1

    公开(公告)日:2003-08-26

    申请号:US09570104

    申请日:2000-05-12

    IPC分类号: B29D1100

    摘要: This invention provides a method of manufacturing a contact lens comprising the step of: dosing a contact lens mold comprising optical mold surfaces with an oxygen-sensitive reaction mixture, wherein said optical surfaces of said contact lens mold have between from 0.13×10−9 to 2.6×10−9 moles/cm2 O2 available to interfere with the reaction of said reaction mixture. This invention further provides a method of manufacturing a contact lens comprising the steps of: dosing a contact lens mold comprising optical mold surfaces with a reaction mixture, and sealing said reaction mixture and said optical mold surfaces away from a gaseous environment, wherein said optical surfaces of said contact lens mold were exposed to said gaseous environment comprising greater than 0.5 percent oxygen just prior to said sealing step.

    摘要翻译: 本发明提供了一种制造隐形眼镜的方法,包括以下步骤:将含有光敏模具表面的隐形眼镜模具配给氧敏反应混合物,其中所述隐形眼镜模具的所述光学表面具有0.13x10-9至2.6 x10-9摩尔/ cm 2 O 2可用于干扰所述反应混合物的反应。 本发明还提供一种制造隐形眼镜的方法,包括以下步骤:将包含光学模具表面的隐形眼镜模具与反应混合物配量,并将所述反应混合物和所述光学模具表面密封远离气体环境,其中所述光学表面 的所述隐形眼镜模具在所述密封步骤之前暴露于包含大于0.5%氧气的所述气体环境。

    LOW POLYDISPERSITY POLY-HEMA COMPOSITIONS
    7.
    发明申请
    LOW POLYDISPERSITY POLY-HEMA COMPOSITIONS 有权
    低聚物聚合物组合物

    公开(公告)号:US20080015322A1

    公开(公告)日:2008-01-17

    申请号:US11774453

    申请日:2007-07-06

    IPC分类号: C08F22/26

    摘要: The present invention relates to compositions comprising poly-HEMA having a peak molecular weight between about 25,000 and about 100,000, preferably between 25,000 and 80,000 and a polydispersity of less than about 2 to less than about 3.8 respectively and covalently bonded thereon, at least one cross-linkable functional group. The present invention further relates to low polydispersity poly-HEMA suitable for making the crosslinkable prepolymers, processes for functionalizing and purifying said poly-HEMA to form said crosslinkable prepolymers, viscous solutions made from said crosslinkable prepolymers, hydrogels made from said viscous solutions and articles made from said crosslinkable polymers, hydrogels and viscous solutions.

    摘要翻译: 本发明涉及包含聚合HEMA的组合物,其具有分子量约25,000至约100,000,优选25,000至80,000,多分散度分别小于约2至小于约3.8并且共价键合在其上,至少一个交叉 可链接的功能组。 本发明还涉及适用于制备可交联预聚物的低分散性聚HEMA,用于官能化和纯化所述聚HEMA以形成所述可交联预聚物的方法,由所述可交联预聚物制成的粘性溶液,由所述粘性溶液制成的水凝胶和制品 来自所述可交联聚合物,水凝胶和粘稠溶液。