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    • 12. 发明申请
    • IMBIBING PROCESS FOR CONTACT LENS SURFACE MODIFICATION
    • 接触透镜表面改性的制备工艺
    • WO2013115917A1
    • 2013-08-08
    • PCT/US2012/069894
    • 2012-12-14
    • SEMPRUS BIOSCIENCES CORP.ZHANG, ZhengSCHULTZ, Karen AnnSKINNER, MattLOOSE, Christopher R.
    • ZHANG, ZhengSCHULTZ, Karen AnnSKINNER, MattLOOSE, Christopher R.
    • C08G77/38C08J7/12C08F20/10C08J5/00G02C7/04
    • C08G77/388G02B1/043C08L101/14
    • A process for modifying the surface of a silicon-containing polymer is presented, the process comprising the steps of: imbibing a zwitterionic monomer or a free radical initiator into a silicon-containing polymer in an imbibing mixture comprising the silicon-containing polymer, at least one of the zwitterionic monomer and the free radical initiator, and a solvent system; and polymerizing the zwitterionic monomer to modify the surface of the silicon-containing polymer with a zwitterionic polymer in a polymerization reaction mixture which comprises the imbibed silicon-containing polymer, a solvent system and the zwitterionic monomer or the free radical initiator, the polymerization reaction mixture having a composition that differs from the composition of the imbibing mixture. Such a process can be applied to prepare medical devices such as contact lens having a wettable, biocompatible surface. Processes for producing such devices are also described.
    • 提出了一种用于改性含硅聚合物表面的方法,该方法包括以下步骤:将包含含硅聚合物的吸收混合物中的两性离子单体或自由基引发剂吸收到含硅聚合物中,至少 一种两性离子单体和自由基引发剂,以及溶剂体系; 并在聚合反应混合物中聚合两相离子单体以用两性离子聚合物修饰含硅聚合物的表面,所述聚合反应混合物包含吸收的含硅聚合物,溶剂体系和两性离子单体或自由基引发剂,聚合反应混合物 具有与吸入混合物的组成不同的组成。 这种方法可以应用于制备诸如具有可湿性,生物相容性表面的隐形眼镜的医疗装置。 还描述了用于制造这种装置的方法。