Plastic lens
    11.
    发明授权
    Plastic lens 失效
    塑料镜片

    公开(公告)号:US4528351A

    公开(公告)日:1985-07-09

    申请号:US400750

    申请日:1982-07-22

    CPC分类号: C08F218/00 G02C7/02

    摘要: A plastic lens of a stepped segment having an excellent surface hardness can be obtained at high molding efficiency from cast polymerization of a diethylene glycol bisallyl carbonate and specified acrylate(s) system further added with a specified diacrylate(s) and/or dimethacrylate(s).

    摘要翻译: 通过二甘醇双烯丙基碳酸酯和指定的丙烯酸酯体系进一步加入特定的二丙烯酸酯和/或二甲基丙烯酸酯(s)的浇铸聚合,可以在高成型效率下获得具有优异表面硬度的阶梯状段的塑料透镜 )。

    High-hydration contact lens
    13.
    发明授权
    High-hydration contact lens 失效
    高水合隐形眼镜

    公开(公告)号:US4625009A

    公开(公告)日:1986-11-25

    申请号:US845936

    申请日:1986-03-31

    CPC分类号: C08F220/54 G02B1/043

    摘要: A high-hydration contact lens having a high strength is disclosed which is made of a copolymer composed of (i) 40 to 90 wt. % of N,N-dimethyl acrylamide, (ii) 5 to 50 wt. % of a hydrophobic monomer, (iii) 0.1 to 10 wt. % of an unsaturated carboxylic acid having one ethylenically unsaturated bond, and (iv) 0.01 to 5.0 wt. % of a crosslinking agent, wherein the hydrophobic monomer is selected from the group consisting of phenyl acrylates, benzyl acrylates, phenyl methacrylates, benzyl methacrylates, alkyl acrylates, alkyl methacrylates, cyclohexyl acrylates and cyclohexyl methacrylates, and the crosslinking agent is selected from those represented by formula (I), (II), or (III) ##STR1## wherein X represents a hydrogen atom or a methyl group, a is an integer of 2 to 23, and b and c each is an integer of 2 to 14.

    摘要翻译: 公开了具有高强度的高水合隐形眼镜,其由以下组成的共聚物制成:(i)40〜90重量% %的N,N-二甲基丙烯酰胺,(ii)5〜50wt。 %的疏水性单体,(iii)0.1〜10重量% %的具有一个烯属不饱和键的不饱和羧酸,和(iv)0.01〜5.0重量% %的交联剂,其中所述疏水性单体选自丙烯酸苯酯,丙烯酸苄酯,甲基丙烯酸苯酯,甲基丙烯酸苄酯,丙烯酸烷基酯,甲基丙烯酸烷基酯,丙烯酸环己酯和甲基丙烯酸环己酯,所述交联剂选自 (II)其中X表示氢原子或甲基,a是2〜2的整数, 23,b和c分别为2〜14的整数。