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1. 发明授权

US4347198A Producing soft contact lenses 失效
标题翻译：生产柔软的隐形眼镜
公开(公告)号：US4347198A
公开(公告)日：1982-08-31
申请号：US190820
申请日：1980-09-25
申请人： Shinzo Ohkada , Hideki Kenjo
发明人： Shinzo Ohkada , Hideki Kenjo
IPC分类号： B29D11/00 , G02B1/04
CPC分类号： B29D11/00125 , G02B1/043 , Y10S425/808
摘要： A soft contact lens is provided by: pouring an excess amount of an original solution for producing a soft contact lens into a concave mold; placing a convex mold on said concave mold and overflowing the excess of said original solution to thereby uniformly fill said original solution in a space between said concave mold and said convex mold; gelling said original solution between the two molds to form therebetween a lens having a tensile strength of at least about 0.1 kgf/cm.sup.2 ; immersing said lens and said two molds in a liquid to peel said lens from said molds; and extracting the thus-peeled lens via an extraction treatment with water. The "original solution" contains:a component A selected from the group consisting of monomers and hydrophillic polymers wherein the monomers yield hydrophillic component when polymerized;a compound B selected from the group consisting of monomers and hydrophobic polymers wherein the monomers yield hydrophobic component when polymerized; anda solvent Cthe weight ratio of A:B being from about 85:15 to about 55:45 and solvent C being about 5 to 95% by weight.
摘要翻译：柔软的隐形眼镜通过以下方式提供：将过量的用于产生软性隐形眼镜的原始溶液倒入凹模中; 将凸模放置在所述凹模上并溢出所述原溶液的过量，从而在所述凹模和所述凸模之间的空间中均匀地填充所述原溶液; 在两个模具之间胶合所述原始溶液以在其间形成抗拉强度为至少约0.1kgf / cm 2的透镜; 将所述透镜和所述两个模具浸入液体中以将所述透镜从所述模具中剥离; 并通过水的萃取处理来提取这样剥离的透镜。 “原始溶液”包含：选自单体和亲水聚合物的组分A，其中单体在聚合时产生亲水性组分; 选自单体和疏水聚合物的化合物B，其中单体在聚合时产生疏水组分; 和溶剂C，A:B的重量比为约85:15至约55:45，溶剂C为约5至95重量％。

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