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    IMPACT RESISTANT POLYUREAURETHANE LENS
    4.
    发明申请
    IMPACT RESISTANT POLYUREAURETHANE LENS 审中-公开
    耐冲击聚氨酯透镜

    公开(公告)号：US20070155940A1

    公开(公告)日：2007-07-05

    申请号：US11685794

    申请日：2007-03-14

    申请人： Vidhu Nagpal ,  William McDonald ,  Robert Smith

    发明人： Vidhu Nagpal ,  William McDonald ,  Robert Smith

    IPC分类号： C08G18/00

    CPC分类号： C08G18/758 ,  C08G18/12 ,  C08G18/3206 ,  C08G18/4018 ,  C08G18/4277 ,  C08G18/6611 ,  C08G18/6644 ,  C08G18/6677 ,  G02B1/041 ,  C08L75/04 ,  C08G18/3814 ,  C08G18/3243 ,  C08G18/3225

    摘要： The present invention relates to a polyether-containing polyureaurethane lens. The polyureaurethane lens can include a prepolymer comprising a polyisocyanate and a polyether-containing polyol material that can be reacted with an amine-containing curing agent to produce the polyureaurethane lens of the present invention. The polyether-containing polyureaurethane lens can have a hard coating on both surfaces and a maximum center thickness of 2.2 mm in a piano configuration, with an impact resistance of at least 148 feet per second as defined by The High Impact Test.

    摘要翻译： 本发明涉及含聚醚的聚脲氨酯透镜。 聚脲氨酯透镜可以包括含有多异氰酸酯和含聚醚的多元醇材料的预聚物，其可与含胺固化剂反应以制备本发明的聚脲聚氨酯透镜。 含聚醚的聚脲氨基甲酸酯透镜可以在两个表面上具有硬涂层，并且在钢琴结构中可以具有2.2mm的最大中心厚度，其耐冲击性为“高冲击试验”所定义的至少148英尺/秒。

    POLARIZING OPTICAL ELEMENTS AND METHOD FOR PREPARING POLYURETHANE-CONTAINING FILMS
    8.
    发明申请
    POLARIZING OPTICAL ELEMENTS AND METHOD FOR PREPARING POLYURETHANE-CONTAINING FILMS 审中-公开
    极化光学元件和制备含有聚氨酯的膜的方法

    公开(公告)号：US20070286969A1

    公开(公告)日：2007-12-13

    申请号：US11759299

    申请日：2007-06-07

    申请人： Vidhu Nagpal ,  Anil Kumar ,  Carol Knox ,  Yingchao Zhang ,  Peter Foller

    发明人： Vidhu Nagpal ,  Anil Kumar ,  Carol Knox ,  Yingchao Zhang ,  Peter Foller

    IPC分类号： C09K19/00

    CPC分类号： G02B5/305 ,  C08G18/3237 ,  G02B1/04 ,  Y10T428/1041 ,  C08L75/04

    摘要： Described is a method of preparing a cured, non-elastomeric polyurethane-containing film including: a) providing as a first component comprising a polyurethane material having isocyanate functional groups; b) providing as a second component a material having active hydrogen-containing functional groups that are reactive with isocyanate; c) combining the first and second components to form a reaction mixture; d) casting the reaction mixture onto a support substrate in a substantially uniform thickness to form a film thereon; e) heating the film on the support substrate to a temperature and for a time sufficient to yield a cured film; and f) removing the cured film from the support substrate to yield a non-elastomeric polyurethane-containing free film. The free film is non-birefringent. Optical elements and articles prepared from the films are also provided.

    摘要翻译： 描述了一种制备固化的非弹性聚氨酯的膜的方法，包括：a）提供包含具有异氰酸酯官能团的聚氨酯材料的第一组分; b）提供具有与异氰酸酯反应的活性含氢官能团的材料作为第二组分; c）将第一和第二组分混合以形成反应混合物; d）以大致均匀的厚度将反应混合物浇铸到支撑基底上以在其上形成膜; e）将支撑基板上的膜加热至足以产生固化膜的温度和时间; 和f）从固定基底上除去固化的膜，得到非弹性聚氨酯的游离膜。 自由膜是非双折射的。 还提供了由膜制备的光学元件和物品。