Spincasting process for producing a series of contact lenses having
desired shapes
    3.
    发明授权
    Spincasting process for producing a series of contact lenses having desired shapes 失效
    用于生产具有所需形状的一系列隐形眼镜的旋压方法

    公开(公告)号:US5260001A

    公开(公告)日:1993-11-09

    申请号:US924126

    申请日:1992-08-03

    IPC分类号: B29C41/04 B29D11/00

    摘要: An improved process for spincasting contact lenses with differently shaped concave lens surfaces from the same mold design comprises providing molds with uniformly shaped concave surfaces, and spincasting in the molds a series of polymerizable mixtures. Contact lenses with differently shaped concave lens surfaces are obtained by varying the ratio of the monomers and an organic diluent in the polymerizable mixtures.

    摘要翻译: 具有不同形状的凹透镜表面的相同模具设计的旋转倾覆隐形眼镜的改进方法包括提供具有均匀形状的凹面的模具,以及在模具中旋转一系列可聚合混合物。 具有不同形状的凹透镜表面的隐形眼镜通过改变可聚合混合物中单体和有机稀释剂的比例而获得。

    Process for making silicone containing hydrogel lenses
    5.
    发明授权
    Process for making silicone containing hydrogel lenses 失效
    制造含硅氧烷水凝胶镜片的方法

    公开(公告)号:US5260000A

    公开(公告)日:1993-11-09

    申请号:US924214

    申请日:1992-08-03

    摘要: A process for preparing silicone hydrogel contact lenses where machining operations are employed to produce a lens having a desired final shape. The silicone hydrogel contact lenses are prepared by:providing a monomeric mixture comprising a silicone-containing monomer, a hydrophilic monomer and an organic diluent;charging the mixture to a mold and curing the formulation in the mold to obtain a shaped article;removing organic diluent from the shaped article to improve machineability of the article; andmachining the shaped article to obtain a contact lens having a desired configuration.

    摘要翻译: 一种制备硅酮水凝胶隐形眼镜的方法,其中采用加工操作来制造具有所需最终形状的透镜。 硅氧水凝胶隐形眼镜通过以下方式制备:提供包含含硅氧烷的单体,亲水性单体和有机稀释剂的单体混合物; 将混合物装入模具中并固化模具中的配方以获得成型制品; 从成形制品中除去有机稀释剂以提高制品的可加工性; 并加工成形制品以获得具有期望构造的隐形眼镜。