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    • 2. 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。
    • 5. 发明申请
    • METHOD FOR MAKING SILICONE HYDROGEL CONTACT LENSES
    • 制造硅胶水凝胶接触透镜的方法
    • WO2010071691A1
    • 2010-06-24
    • PCT/US2009/047428
    • 2009-06-16
    • NOVARTIS AGCHANG, FrankVOGT, JürgenPRUITT, John, DallasQIAN, XinmingSMITH, Dawn, A.DOMSCHKE, Angelika, MariaHOLLAND, Troy, VernonTUREK, Richard, CharlesWU, Daqing
    • CHANG, FrankVOGT, JürgenPRUITT, John, DallasQIAN, XinmingSMITH, Dawn, A.DOMSCHKE, Angelika, MariaHOLLAND, Troy, Vernon
    • G02B1/04
    • G02B1/043C08F283/124C08L83/04C08L51/085
    • A method for producing silicone hydrogel contact lenses and silicon hydrogel contact lens thereof. The method comprising the steps of: providing a mold for making a soft contact lens, wherein the mold has a first mold half with a first molding surface defining the anterior surface of a contact lens and a second mold half with a second molding surface defining the posterior surface of the contact lens, wherein said first and second mold halves are configured to receive each other such that a cavity is formed between said first and second molding surfaces; introduce a monomer mixture of lens-forming materials into the cavity, wherein the monomer mixture comprises at least one hydrophilic amide-type vinylic monomer, at least one siloxane-containing (meth)acrylamide monomer, at least one polysiloxane vinylic monomer or macromer, and from about 0.05 % to about 1.5 % by weight of a photoinitiator, wherein the lens forming material is characterized by having an ability to be cured by a UV light having an UV-intensity of about 4.1 mW/cm 2 within about 100 seconds; and irradiating, under a spatial limitation of actinic radiation, the lens-forming material in the mold for a time period of about 120 seconds or less, so as to crosslink the lens-forming material to form the silicone hydrogel contact lens, wherein the produced contact lens comprises an anterior surface defined by the first molding surface, an opposite posterior surface defined by the second molding surface, and a lens edge defined by the spatial limitation of actinic radiation.
    • 硅酮水凝胶隐形眼镜及其硅水凝胶隐形眼镜的制造方法。 该方法包括以下步骤:提供用于制造软性隐形眼镜的模具,其中所述模具具有第一半模,其具有限定隐形眼镜的前表面的第一模制表面和具有限定所述隐形眼镜的第二模制表面的第二半模 接触透镜的后表面,其中所述第一和第二半模被配置为彼此接收,使得在所述第一和第二模制表面之间形成空腔; 将透镜形成材料的单体混合物引入空腔中,其中单体混合物包含至少一种亲水性酰胺型乙烯基单体,至少一种含硅氧烷的(甲基)丙烯酰胺单体,至少一种聚硅氧烷乙烯基单体或大分子单体,以及 约0.05重量%至约1.5重量%的光引发剂,其中所述透镜形成材料的特征在于具有在约100秒内具有约4.1mW / cm 2的UV强度的UV光固化的能力; 并且在光化辐射的空间限制下将模具中的透镜形成材料照射大约120秒或更短的时间,以使透镜形成材料交联以形成硅氧水凝胶隐形眼镜,其中所产生的 隐形眼镜包括由第一成型表面限定的前表面,由第二成型表面限定的相对的后表面和由光化辐射的空间限制限定的透镜边缘。