Radiation-curable prepolymers
    2.
    发明申请

    公开(公告)号:US20060030679A1

    公开(公告)日:2006-02-09

    申请号:US11243928

    申请日:2005-10-05

    IPC分类号: C08G18/00

    摘要: The present invention provides a radiation-curable prepolymer. The radiation-curable prepolymer of the invention is prepared by reacting an isocyanate-capped polyurethane with an ethylenically unsaturated amine or an ethylenically unsaturated monohydroxy compound or a mixture thereof, wherein the isocyanate-capped polyurethane is a copolymerization production of: (a) at least one polyalkylene glycol; (b) at least one branching agent having at least three hydroxy groups; and (c) at least one di- or polyisocyanate. The radiation-curable prepolymer of the invention can find use in economically producing contact lenses which have durable, highly elastic soft contact lenses with desired physical properties. In addition, the present invention provides method for making a radiation-curable prepolymer of the invention and for making a medical device, preferably an ophthalmic device, more preferably a contact lens.

    Water-based inks for hydrogel lenses
    3.
    发明申请
    Water-based inks for hydrogel lenses 有权
    水凝胶透镜用水性油墨

    公开(公告)号:US20070027228A1

    公开(公告)日:2007-02-01

    申请号:US11248548

    申请日:2005-10-12

    IPC分类号: C08F290/14

    摘要: The present invention is related to water-based inks for making colored hydrogel contact lenses, in particular, colored HEMA-based hydrogel contact lenses. The ink of the invention comprises at least one colorant, water, and a water-soluble and actinically-curable binder polymer which is a vinyl group-terminated polyurethane polymer, a vinyl group-terminated polyurea binder polymer, or a mixture thereof. Also, the ink of the invention is characterized by having a viscosity greater than 50 centipoise (cps), a prolonged stability, and a good adhesion to a HEMA-based hydrogel contact lens. The ink of the invention preferably further has a good compatibility with a HEMA-based hydrogel material, and/or good transferability from a mold to a HEMA-based hydrogel contact lens made in the mold. The present invention is also related to a method for making colored hydrogel contact lenses using an ink of the invention.

    摘要翻译: 本发明涉及用于制造有色水凝胶隐形眼镜的水性油墨,特别是有色HEMA基水凝胶隐形眼镜。 本发明的油墨包含至少一种着色剂,水和水溶性和可光化固化的粘合剂聚合物,其为乙烯基封端的聚氨酯聚合物,乙烯基封端的聚脲粘合剂聚合物或其混合物。 此外,本发明的油墨的特征在于具有大于50厘泊(cps)的粘度,延长的稳定性和对HEMA基水凝胶隐形眼镜的良好粘附性。 本发明的墨水优选进一步与HEMA基水凝胶材料具有良好的相容性和/或从模具到在模具中制造的HEMA基水凝胶隐形眼镜的良好转移性。 本发明还涉及使用本发明的油墨制造有色水凝胶隐形眼镜的方法。

    Water-based inks for hydrogel lenses
    4.
    发明授权
    Water-based inks for hydrogel lenses 有权
    水凝胶透镜用水性油墨

    公开(公告)号:US07354959B2

    公开(公告)日:2008-04-08

    申请号:US11248548

    申请日:2005-10-12

    IPC分类号: C08F2/46

    摘要: The present invention is related to water-based inks for making colored hydrogel contact lenses, in particular, colored HEMA-based hydrogel contact lenses. The ink of the invention comprises at least one colorant, water, and a water-soluble and actinically-curable binder polymer which is a vinyl group-terminated polyurethane polymer, a vinyl group-terminated polyurea binder polymer, or a mixture thereof. Also, the ink of the invention is characterized by having a viscosity greater than 50 centipoise (cps), a prolonged stability, and a good adhesion to a HEMA-based hydrogel contact lens. The ink of the invention preferably further has a good compatibility with a HEMA-based hydrogel material, and/or good transferability from a mold to a HEMA-based hydrogel contact lens made in the mold. The present invention is also related to a method for making colored hydrogel contact lenses using an ink of the invention.

    摘要翻译: 本发明涉及用于制造有色水凝胶隐形眼镜的水性油墨,特别是有色HEMA基水凝胶隐形眼镜。 本发明的油墨包含至少一种着色剂,水和水溶性和可光化固化的粘合剂聚合物,其为乙烯基封端的聚氨酯聚合物,乙烯基封端的聚脲粘合剂聚合物或其混合物。 此外,本发明的油墨的特征在于具有大于50厘泊(cps)的粘度,延长的稳定性和对HEMA基水凝胶隐形眼镜的良好粘附性。 本发明的墨水优选进一步与HEMA基水凝胶材料具有良好的相容性和/或从模具到在模具中制造的HEMA基水凝胶隐形眼镜的良好转移性。 本发明还涉及使用本发明的油墨制造有色水凝胶隐形眼镜的方法。