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公开(公告)号：US4463148A
公开(公告)日：1984-07-31
申请号：US490209
申请日：1983-05-06
IPC分类号： G02C7/04 , C08F220/20
CPC分类号： G02C7/04
摘要： A soft contact lens having in preferred embodiment an elliptical inside surface which has a numerical eccentricity of 0.2 to 0.5 and a zenith radium of curvature of 8.0 to 8.4 mm. It preferably consists of a copolymer comprising of 50% to 90% hydroxyethyl-methacrylate (HEMA) by weight, 2% to 20% one or more unsaturated carboxylic acids, 2% to 20% one or more base monomers, 5% to 25% aliphatic acrylate or methacrylate, and 0.1% to 1% of a dialkylene-glycol-dimethacrylate crosslinker.
摘要翻译： 柔软的隐形眼镜在优选实施例中是椭圆形内表面，其数字偏心率为0.2至0.5，曲率半径为8.0至8.4mm。 它优选由包含50重量％至90重量％的羟乙基甲基丙烯酸酯（HEMA），2重量％至20重量％的一种或多种不饱和羧酸，2％至20％的一种或多种基础单体，5％至25％ 脂肪族丙烯酸酯或甲基丙烯酸酯，和0.1〜1％的二亚烷基 - 二醇 - 二甲基丙烯酸酯交联剂。
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公开(公告)号：US5069542A
公开(公告)日：1991-12-03
申请号：US186674
申请日：1988-04-21
IPC分类号： G02C7/04
CPC分类号： G02C7/04
摘要： A contact lens has an elliptical inside surface with a numerical eccentricity of 0.2 to 0.5 and a zenith radius of curvature of 8.0 to 8.4 mm. The inside surface preferably has a peripheral, circularly cross sectioned bevelled zone. As a soft contact lens, it has these dimensions when fully hydrated and preferably consists of a copolymer comprising of 50% to 90% hydroxyethyl-methacrylate (HEMA) by weight, 2% to 20% one or more unsaturated carboxylic acids, 2% to 20% one or more base monomers, 5% to 25% aliphatic acrylate or methacrylate, and 0.1% to 1% of a dialkylene-glycol-dimethacrylate cross-linker.
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