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    • 4. 发明申请
    • METHOD FOR MAKING CONTACT LENSES
    • 制造接触镜的方法
    • WO2007020010A1
    • 2007-02-22
    • PCT/EP2006/007924
    • 2006-08-10
    • NOVARTIS AGNOVARTIS PHARMA GMBHWANG, GuiguiSMITH, DawnVOGT, JürgenLALLY, John, MartinDEVLIN, Brian, Gerrard
    • WANG, GuiguiSMITH, DawnVOGT, JürgenLALLY, John, MartinDEVLIN, Brian, Gerrard
    • G02B1/04
    • B29C33/60B29C33/62B29D11/00134B29D11/00192G02B1/043
    • The instant invention pertains to a method and a fluid composition for producing contact lenses with improved lens quality and with increased product yield. The method of the invention involves adding a non-crosslinkable hydrophilic polymer into a fluid composition including a lens-forming material in an amount sufficient to reduce an averaged mold separation force by at least about 40% in comparison with that without the non-crosslinkable hydrophilic polymer and to provide a disparity of about 10 N or less in mold separation force. The non-crosslinkable hydrophilic polymer has a limited miscibility with the lens-forming material low enough to successfully and timely form an intact interfacial film with a sufficient thickness at an interface between the mold and the fluid composition therein, and has a structure that minimizes entanglement of the non-crosslinkable hydrophilic polymer in the interfacial film with the polymer matrix of the formed lens.
    • 本发明涉及一种用于制造具有改善的镜片质量和增加的产品产量的隐形眼镜的方法和流体组合物。 本发明的方法包括将不可交联的亲水性聚合物添加到包含透镜形成材料的流体组合物中,该透镜形成材料的量足以将平均的模具分离力减小至少约40%,与不使用不可交联的亲水性 并且在模具分离力中提供约10N或更小的差异。 不可交联的亲水性聚合物与透镜形成材料的混溶性有限,足够低以在模具和其中的流体组合物之间的界面处成功地及时地形成具有足够厚度的完整界面膜,并且具有最小化缠结的结构 的界面膜中的不可交联的亲水聚合物与形成的透镜的聚合物基体。