Composition for forming a contact lens
    1.
    发明授权
    Composition for forming a contact lens 有权
    用于形成隐形眼镜的组合物

    公开(公告)号:US08618187B2

    公开(公告)日:2013-12-31

    申请号:US13433329

    申请日:2012-03-29

    摘要: There is described a composition for forming an contact lens, in particular for forming a silicone hydrogel contact lens, comprising at least one first vinylic monomer or macromer having one first ethylenically unsaturated group and at least one second vinylic monomer or macromer having one second ethylenically unsaturated group, wherein the first and second ethylenically unsaturated groups are different from each other and wherein the composition further comprises a crosslinker with at least two ethylenically unsaturated (polymerizable) groups with a selected kinetic copolymerization parameter r1 of less than 1.0 relative to one of the first and second ethylenically unsaturated (polymerizable) groups as defined above.

    摘要翻译: 描述了用于形成隐形眼镜的组合物,特别是用于形成硅氧水凝胶隐形眼镜的组合物,其包含至少一种具有一个第一烯属不饱和基团的至少一种第一乙烯基单体或大分子单体和至少一种具有一个第二烯属不饱和基团的第二乙烯基单体或大分子单体 基团,其中所述第一和第二烯属不饱和基团彼此不同,并且其中所述组合物还包含具有至少两个烯键式不饱和(可聚合)基团的交联剂,其中选择的动力学共聚参数r1相对于所述第一 和第二烯属不饱和(可聚合)基团。

    Blister pack for an optical lens
    7.
    发明授权
    Blister pack for an optical lens 失效
    吸塑包用于光学透镜

    公开(公告)号:US5609246A

    公开(公告)日:1997-03-11

    申请号:US434088

    申请日:1995-05-03

    摘要: The blister pack comprises a base portion and a cover layer. The base portion comprises a hollow chamber that contains a soft hydrophilic contact lens and a sterile aqueous preserving solution, and a substantially flat flange that extends right round the outside of the hollow chamber. The cover layer is releasably sealed to the flange in a sealing zone that extends right round the circumference of the hollow chamber. The flange comprises a grip region that extends from one side of the hollow chamber beyond the sealing zone and is covered by a corresponding grip region of the cover layer but is not sealed thereto. The hollow chamber comprises a dish-shaped main chamber and, adjoining the side of that main chamber, a secondary chamber in the shape of a channel tapering on all sides away from the main chamber, the main chamber making a smooth transition into the secondary chamber, and the main chamber and the secondary chamber together having a drop-shaped contour in the plane of the flange, the tip of which contour is directed towards the grip region of the flange. Provided in the grip region of the flange is an oval opening by means of which the overlying grip region of the cover layer can be lifted from the flange. A support element that is angled with respect to the plane of the flange is arranged in the grip region of the flange. An angled grip element or facilitating the handling of the blister pack is arranged at the edge of the flange on both sides of the hollow chamber. The base portion is so shaped that the blister packs can be nested in pairs with their undersides one inside the other, in each case the hollow chamber of one blister pack lying in the region of the grip region of the other blister pack. The blister pack is extremely handy, space-saving and stable, requires only an extremely small amount of preserving solution and enables the contact lens it contains to be removed especially easily.

    摘要翻译: 泡罩包装包括基部和覆盖层。 底座部分包括一个包含柔软的亲水性隐形眼镜和无菌水性保存液的中空腔,以及在中空腔外侧向外延伸的基本平坦的凸缘。 覆盖层在密封区域中可释放地密封到凸缘上,密封区域在中空室的圆周的右侧延伸。 凸缘包括从中空室的一侧延伸超过密封区并被覆盖层的相应夹持区域覆盖但不被密封的手柄区域。 中空室包括碟形主室,并且邻近该主室的一侧,具有在远离主室的所有侧面上渐缩的通道形式的第二室,主室平滑地过渡到次室 ,并且主室和副室一起在凸缘的平面中具有液滴形轮廓,其顶端的轮廓指向凸缘的把手区域。 在凸缘的把手区域中设置有椭圆形的开口,通过该椭圆形开口可以覆盖层的覆盖夹持区域从凸缘提升。 相对于凸缘的平面成角度的支撑元件布置在凸缘的把手区域中。 倾斜的夹紧元件或便于处理泡罩包装被布置在中空室两侧的凸缘的边缘处。 底部部分是这样成形的,使得泡罩包装件可以与它们的下侧成对嵌套,一个在另一个内部,在每种情况下,一个泡罩包装袋的中空室位于另一个泡罩包装的抓握区域的区域中。 泡罩包装非常方便,节省空间并且稳定,只需要极少量的保存溶液,并且使其包含的隐形眼镜被特别容易地去除。

    METHOD OF SEPARATING EXCESS LENS FORMING MATERIAL FROM A MOLDED OPHTHALMIC LENS, IN PARTICULAR A CONTACT LENS
    9.
    发明申请
    METHOD OF SEPARATING EXCESS LENS FORMING MATERIAL FROM A MOLDED OPHTHALMIC LENS, IN PARTICULAR A CONTACT LENS 有权
    从模制的眼镜镜片,特别是接触镜片中分离出来的镜片表面材料的方法

    公开(公告)号:US20110147959A1

    公开(公告)日:2011-06-23

    申请号:US12969689

    申请日:2010-12-16

    IPC分类号: B29D11/00 B29C45/24

    摘要: There is described a method of separating excess lens forming material from a molded ophthalmic lens, in particular a contact lens. After polymerization and/or cross-linking of a lens forming material (P) within a mold cavity (4) of a mold (1) comprising female and male mold halves (2, 3) to form an ophthalmic lens non-polymerized and/or non-cross-linked lens forming material is flushed away from the mold halves (2, 3) with a jet of a fluid flushing medium, such as, e.g., water or a solvent or an inert gas. Subsequently the molded lens is dried. In accordance with the invention the flushing is accomplished with the mold halves (2, 3) still in the closed position. There is also described an apparatus for carrying out the method.

    摘要翻译: 描述了从模制的眼科镜片,特别是隐形眼镜分离多余的透镜形成材料的方法。 在透镜形成材料(P)在包含阴模和阴半模(2,3)的模具(1)的模腔(4)内聚合和/或交联以形成未聚合的眼科镜片和/ 或非交联透镜形成材料用流体冲洗介质(例如水或溶剂或惰性气体)的射流冲洗离开半模(2,3)。 随后将模制的透镜干燥。 根据本发明,冲洗是通过半模(2,3)仍处于关闭位置来完成的。 还描述了一种用于执行该方法的装置。

    ACTINICALLY-CROSSLINKABLE SILOXANE-CONTAINING COPOLYMERS
    10.
    发明申请
    ACTINICALLY-CROSSLINKABLE SILOXANE-CONTAINING COPOLYMERS 有权
    具有交联性的含硅氧烷共聚物

    公开(公告)号:US20100296049A1

    公开(公告)日:2010-11-25

    申请号:US12783591

    申请日:2010-05-20

    IPC分类号: C07F7/10 B29D11/00 G02C7/04

    摘要: The invention provide a class of actinically-crosslinkable silicone-containing prepolymers which comprise dangling polysiloxane chains each having a terminal ethylenically-unsaturated group and are obtained in a one-step of RAFT polymerization of a reactive mixture comprising a polysiloxane crosslinker, a hydrophilic vinylic monomer, a RAFT agent, and a free-radical initiator. The present invention is also related to silicone hydrogel contact lenses made from a prepolymer of the invention and methods for making the contact lenses in a cost-effective way and with high consistency and high fidelity to the original lens design.

    摘要翻译: 本发明提供一类具有光聚合性的含硅氧烷的预聚物,其包含悬链聚硅氧烷链,每个聚硅氧烷链均具有末端烯键式不饱和基团,并且在包括聚硅氧烷交联剂,亲水性乙烯基单体的反应性混合物的一步RAFT聚合反应中获得 ,RAFT试剂和自由基引发剂。 本发明还涉及由本发明的预聚物制成的硅酮水凝胶隐形眼镜以及以成本有效的方式制造隐形眼镜并以与原始透镜设计的高一致性和高保真度的方法。