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    Liquid for contact lenses
    51.
    发明授权
    Liquid for contact lenses 失效
    隐形眼镜液体

    公开(公告)号：US6160069A

    公开(公告)日：2000-12-12

    申请号：US271338

    申请日：1999-03-18

    申请人： Kazuhiko Nakada ,  Tetsuji Kawai

    发明人： Kazuhiko Nakada ,  Tetsuji Kawai

    IPC分类号： A61L2/18 ,  A61L12/14 ,  C08F8/00 ,  C11D3/37 ,  C11D17/00 ,  G02C7/04 ,  G02C13/00 ,  C08F12/28 ,  C08L39/00 ,  G02B3/00

    CPC分类号： A61L12/142 ,  A61L2/18 ,  A61L12/14 ,  C08F8/30 ,  C08F2800/20 ,  C08F126/02

    摘要： A liquid for contact lenses, containing at least one of a polymer (A) having a recurring unit (a) represented by the formula (I): ##STR1## wherein n is 0 or 1 and a recurring unit (b) represented by the formula (II): ##STR2## wherein m is 0 or 1, and a salt of the polymer (A). The liquid for contact lenses can extremely decrease variation of base curve of a contact lens during preservation and shipping, and shows excellent antiseptic effect and excellent antibacterial effect.

    摘要翻译： 一种隐形眼镜用液体，含有具有式（I）表示的重复单元（a）的聚合物（A）中的至少一种：其中n为0或1，以及由式（II）表示的重复单元（b） ）：其中m为0或1，以及聚合物（A）的盐。 隐形眼镜液体可以在保存和运输过程中极大地减少隐形眼镜的基本曲线变化，显示出优异的防腐效果和优异的抗菌效果。

    Contact lens material
    53.
    发明授权
    Contact lens material 失效
    隐形眼镜材料

    公开(公告)号：US5605942A

    公开(公告)日：1997-02-25

    申请号：US583746

    申请日：1996-01-17

    申请人： Haruyuki Hiratani ,  Kazuhiko Nakada ,  Shoji Ichinohe ,  Toshio Yamazaki ,  Hideto Kato

    发明人： Haruyuki Hiratani ,  Kazuhiko Nakada ,  Shoji Ichinohe ,  Toshio Yamazaki ,  Hideto Kato

    IPC分类号： C08G73/10 ,  G02B1/04 ,  A61F2/16

    CPC分类号： C08G73/106 ,  C08G73/1039 ,  G02B1/043

    摘要： A contact lens material comprising a condensation polymer having a recurring unit represented by the formula (I): ##STR1## wherein R.sup.1 is --C(CF.sub.3).sub.2 -- or ##STR2## R.sup.2 is a group represented by the formula: ##STR3## in which l is an integer of 1 to 3, m is an integer of 1 to 15 and n is an integer of 1 to 3, ##STR4## in which u is an integer of 1 to 3 and v is an integer of 1 to 3, a group represented by the formula (II): ##STR5## wherein R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are the same or different and each is hydrogen atom or an alkyl group having 1 to 5 carbon atoms, or a group represented by the formula (III): ##STR6## wherein R.sup.7 is --C(CF.sub.3).sub.2 --, ##STR7## or a direct bond, and R.sup.8 and R.sup.9 are the same or different and each is an alkyl group having 1 to 3 carbon atoms, a fluoroalkyl group having 1 to 3 carbon atoms, hydrogen atom, hydroxyl group or carboxyl group. The contact lens material is excellent in transparency, having high oxygen permeability and moreover, excellent in heat resistance, ultraviolet-ray absorbing property and forming and processing property.

    摘要翻译： 包含具有由式（I）表示的重复单元的缩聚物的隐形眼镜材料：其中R 1是-C（CF 3）2 - 或R 2是由下式表示的基团： IMAGE>其中l为1〜3的整数，m为1〜15的整数，n为1〜3的整数，＆lt; IMAGE＆gt;中，u为1〜3的整数，v为 1〜3，式（II）表示的基团：其中R 3，R 4，R 5和R 6相同或不同，各自为氢原子或碳原子数1〜5的烷基， 由式（III）表示的基团：其中R 7是-C（CF 3）2 - ， - 或直接键，其中R 8和R 9相同或不同，并且各自为烷基 具有1至3个碳原子，具有1至3个碳原子的氟代烷基，氢原子，羟基或羧基。 隐形眼镜材料的透明度优异，透氧性高，耐热性，紫外线吸收性，成型加工性优异。

    Method of producing intraocular lens formed from polymide powder
    54.
    发明授权
    Method of producing intraocular lens formed from polymide powder 失效
    由聚酰亚胺粉制成眼内透镜的方法

    公开(公告)号：US5397511A

    公开(公告)日：1995-03-14

    申请号：US131393

    申请日：1993-10-05

    申请人： Kenichi Ishihara ,  Kazuhiko Nakada ,  Kunihisa Yoshida ,  Haruyuki Hiratani

    发明人： Kenichi Ishihara ,  Kazuhiko Nakada ,  Kunihisa Yoshida ,  Haruyuki Hiratani

    IPC分类号： A61F2/16 ,  A61L27/00 ,  B29C43/00 ,  B29D11/00 ,  B29D11/02 ,  B29K79/00 ,  G02B1/04

    CPC分类号： G02B1/043 ,  B29C43/003 ,  B29D11/023 ,  B29K2079/08 ,  B29K2105/251

    摘要： A method of producing an intraocular lens having integrally formed optic and haptic including the steps of: (a) preparing a polyimide powder having a repeated unit represented by the following formula: ##STR1## [in the formula, when R.sub.1 =--C(CF.sub.3).sub.2 --, R.sub.2 is selected from ##STR2## the polyimide powder having a particle size of less than 1 mm; (b) placing the polyimide powder between a pair of dies having a pattern corresponding to a part of the contour of the lens; (c) hot pressing the polyimide powder between the dies, to provide a molding having the above part of the contour of the lens; and (d) machining the molding to form the rest of the contour of the lens to thereby provide the overall shape of the intraocular lens.

    摘要翻译： 一种制造具有整体形成的光学和触觉的人工晶状体的方法，包括以下步骤：（a）制备具有由下式表示的重复单元的聚酰亚胺粉末：[式中，当R 1 = -C（CF 3） ）2-，R2选自SO 2，O，R 2是C（CF 3）2，具有小于1mm的粒度的聚酰亚胺粉末; （b）将聚酰亚胺粉末放置在具有对应于透镜轮廓的一部分的图案的一对模具之间; （c）在模具之间热压聚酰亚胺粉末，以提供具有上述透镜轮廓部分的模制品; 和（d）加工模制件以形成透镜的其余部分，从而提供眼内透镜的整体形状。

    Contact lens and process for preparing the same
    57.
    发明授权
    Contact lens and process for preparing the same 失效
    隐形眼镜及其制备方法

    公开(公告)号：US4451629A

    公开(公告)日：1984-05-29

    申请号：US337170

    申请日：1982-01-05

    申请人： Kyoichi Tanaka ,  Shinji Kanome ,  Tatsutoshi Nakajima ,  Kazuhiko Nakada ,  Nobuyuki Toyoshima

    发明人： Kyoichi Tanaka ,  Shinji Kanome ,  Tatsutoshi Nakajima ,  Kazuhiko Nakada ,  Nobuyuki Toyoshima

    IPC分类号： B29D11/00 ,  C08F8/12 ,  C08J7/12 ,  G02B1/04 ,  C08F16/38 ,  G02C7/04

    CPC分类号： G02B1/043 ,  B29D11/00 ,  B29D11/00076 ,  C08F8/12 ,  C08J7/12 ,  C08F2810/20

    摘要： A water-absorptive contact lens made of a copolymer comprising units of an ester of acrylic or methacrylic acid and at least one saccharide selected from D-galactose, D-glucose and D-mannose and units of at least one member selected from a hydrophilic monomer and a hydrophobic monomer, which has excellent oxygen permeability and affinity for the eye and can be worn continuously for a long period of time. The contact lens is prepared by polymerizing a monomer mixture containing an ester of acrylic or methacrylic acid with a ketalized saccharide and a hydrophilic monomer and/or a hydrophobic monomer, and after forming the resulting copolymer into a contact lens, if necessary, treating the copolymer having a shape of contact lens with an acid to convert the ketal groups into hydroxyl groups.

    摘要翻译： 一种由包含丙烯酸或甲基丙烯酸酯和至少一种选自D-半乳糖，D-葡萄糖和D-甘露糖的糖的单元的共聚物制成的吸水性隐形眼镜，以及选自亲水单体中的至少一种的单元 和疏水性单体，其具有优异的透氧性和对眼睛的亲和力，并且可以连续长时间佩戴。 隐形眼镜是通过将包含丙烯酸或甲基丙烯酸酯的单体混合物与缩酮化糖和亲水性单体和/或疏水性单体聚合制备的，并且在将所得共聚物形成隐形眼镜后，如果需要， 具有与酸接触的形状，以将缩酮基团转化为羟基。