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    METHOD FOR PRODUCING CONTACT LENSES
    2.
    发明公开
    METHOD FOR PRODUCING CONTACT LENSES 有权
    制造隐形眼镜的方法

    公开(公告)号：EP1855872A1

    公开(公告)日：2007-11-21

    申请号：EP06723273.6

    申请日：2006-03-07

    申请人： Novartis AG ,  NOVARTIS-PHARMA GMBH

    发明人： MATSUZAWA, Yasuo ,  TUREK, Richard, Charles

    IPC分类号： B29D11/00

    CPC分类号： B29D11/00211 ,  B29C33/44

    摘要： The invention provides an improved process for manufacturing hydrophobic silicone-hydrogel contact lenses. The improvement includes use of a hot water in the step of dislodging (or removing or de-blocking) from a mold after lens being cured and before lens extraction. Hot water can be used efficiently to dislodge a hydrophobic silicone-hydrogel lens from its adhering mold half and to substantially reduce the stickiness (or tackiness) of the surfaces of the hydrophobic silicone-hydrogel lens.

    摘要翻译： 本发明提供了用于制造疏水硅酮 - 水凝胶隐形眼镜的改进方法。 改进包括在镜片固化之后和镜片提取之前从模具中移除（或移除或脱嵌）步骤中使用热水。 可以有效地使用热水将疏水性硅酮水凝胶镜片从其粘附的半模中移出并且基本上减少疏水性硅酮水凝胶镜片表面的粘性（或粘性）。

    METHOD FOR PRODUCING CONTACT LENSES
    9.
    发明公开
    METHOD FOR PRODUCING CONTACT LENSES 有权
    制造隐形眼镜的方法

    公开(公告)号：EP1732750A2

    公开(公告)日：2006-12-20

    申请号：EP05751675.9

    申请日：2005-03-23

    申请人： Novartis AG ,  NOVARTIS-PHARMA GMBH

    发明人： MATSUZAWA, Yasuo ,  RUSSELL, Todd Aldridge

    IPC分类号： B29D11/00 ,  B29C33/20

    CPC分类号： B29D11/0023 ,  B29D11/00125 ,  B29D11/00221 ,  B29D11/00278 ,  B29D11/0073

    摘要： The invention provides an improved process in which minimal force is required to separate mold halves so as to minimize lens damages resulted from the forced separation of mold halves. The process of the invention comprises: providing a mold including a first mold half having a first molding surface and a second mold half having a second molding surface, wherein the first and second mold halves are configured to receive each other such that a mold cavity is formed between the first and second molding surfaces, wherein one of the first and second mold halves has a collar that encircles the other mold half to provide a seal between the two mold halves when the mold is closed; dispensing a specific amount of a polymerizable lens-forming material into one of the mold halves; mating the mold halves to close the mold; polymerizing said polymerizable material located between the two mold halves, thereby forming a molded contact lens; applying a small force to the collar to distort the collar, thereby breaking the seal between the two mold halves; and opening the mold.

    摘要翻译： 本发明提供了一种改进的方法，其中需要最小的力来分离半模，从而最小化因半模的强制分离而导致的透镜损伤。 本发明的方法包括：提供包括具有第一模制表面的第一半模和具有第二模制表面的第二半模的模具，其中第一半模和第二半模配置为彼此接收，使得模腔是 形成在所述第一和第二模制表面之间，其中所述第一和第二半模中的一个具有套环，所述套环环绕另一个半模以在所述模具闭合时在所述两个半模之间提供密封; 将特定量的可聚合镜片形成材料分配到半模之一中; 配合半模以闭合模具; 聚合位于两个半模之间的所述可聚合材料，由此形成模制隐形眼镜; 向套环施加小的力以使套环变形，由此破坏两个半模之间的密封; 并打开模具。