利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.01 秒)

    Methacrylic copolymer having low moisture absorption properties
    1.
    发明授权
    Methacrylic copolymer having low moisture absorption properties 失效
    具有低吸湿性能的甲基丙烯酸共聚物

    公开(公告)号：US5043405A

    公开(公告)日：1991-08-27

    申请号：US545665

    申请日：1990-07-02

    申请人： Toshinori Koseki ,  Kimio Imaizumi

    发明人： Toshinori Koseki ,  Kimio Imaizumi

    IPC分类号： C08F220/14 ,  G11B7/253

    CPC分类号： C08F220/14 ,  G11B7/253

    摘要： The methacrylic copolymer of the present invention is a novel copolymer having low moisture absorption properties which comprises specific proportions of methyl methacrylate units and tert-butylcyclohexyl methacrylate units, optionally with specific ethylenically unsaturated compound units copolymerizable with the above-mentioned monomer units. The copolymer of the present invention is excellent not only in colorlessness, transparency, moldability, low double refraction and heat stability but also in low moisture absorption properties and heat resistance and, therefore, is suitable for use as a material for shaped articles, such as an optical element substrate and a light transmissible extruded plate, and can particularly advantageously be used for applications, such as an optical disc substrate.

    摘要翻译： 本发明的甲基丙烯酸共聚物是具有低吸湿性的新型共聚物，其包含特定比例的甲基丙烯酸甲酯单元和甲基丙烯酸叔丁基环己酯单元，任选具有可与上述单体单元共聚的特定烯键式不饱和化合物单元。 本发明的共聚物不仅在无色性，透明性，成型性，低折射率和热稳定性方面都是优异的，而且在低吸湿性和耐热性方面也是优异的，因此适合用作成型制品的材料，例如 光学元件基板和可透光的挤压板，并且可以特别有利地用于诸如光盘基板的应用。

    Cushioning composite molded article and a process for production thereof
    2.
    发明授权
    Cushioning composite molded article and a process for production thereof 失效
    缓冲复合成型品及其制造方法

    公开(公告)号：US5702810A

    公开(公告)日：1997-12-30

    申请号：US508243

    申请日：1995-07-27

    申请人： Toshinori Koseki ,  Kunio Maeda ,  Syoichi Kanno

    发明人： Toshinori Koseki ,  Kunio Maeda ,  Syoichi Kanno

    IPC分类号： B29C44/04 ,  B29C44/08 ,  B29C44/12 ,  B29C44/06 ,  B32B5/20

    CPC分类号： B29C44/12 ,  B29C44/0407 ,  B29C44/083 ,  B29C44/1276 ,  Y10T428/249989 ,  Y10T428/249992

    摘要： The present invention relates to a cushioning composite molded article obtained by forming a cushioning material having a surface material on a rigid substrate integrally, and a process for producing the composite molded article by a simple procedure involving a small number of steps for production, and when a rigid-resin molded product is set in a mold and an expandable elastomer is injected, after which the inside of the mold is enlarged to expand the substance, the expanded elastomer becomes a cushioning material and its skin layer becomes a surface material, and the formation of them and the union in a body of them and the rigid substrate, i.e., the rigid-resin molded product can be carried out in one mold in succession, so that the production is easy and that labor and the production cost are saved.

    摘要翻译： 本发明涉及一种通过在刚性基材上形成表面材料的缓冲材料一体形成的缓冲复合成型体，以及通过简单的程序制造复合成型品的方法，该方法涉及少量的生产步骤，以及何时 在模具中设置刚性树脂模制品，并注射可膨胀弹性体，然后扩大模具内部以膨胀物质，膨胀弹性体成为缓冲材料，其表皮层成为表面材料， 它们的形成以及它们的结合体和刚性基材（即，刚性树脂模制产品）可以在一个模具中连续进行，使得生产容易，并节省劳动力和生产成本。