Fluorine-containing polyamide
    2.
    发明授权
    Fluorine-containing polyamide 失效
    含氟聚酰胺

    公开(公告)号:US6103860A

    公开(公告)日:2000-08-15

    申请号:US332534

    申请日:1999-06-14

    摘要: There is disclosed an organic optical component prepared from a resin essentially comprising one or more repetitive structural units selected from the group consisting of structures represented by general formula (1); ##STR1## wherein A is either of the groups below. ##STR2## This invention provides an organic optical component with excellent transparency, heat resistance and mechanical strength as well as a low birefringence. This invention also provides a novel aromatic polyamide with a low permitivity and excellent transparency, processability and thermal stability, besides excellent heat resistance inherent in an aromatic polyamide.

    摘要翻译: 公开了一种由基本上包含一个或多个重复结构单元的树脂制备的有机光学组件,所述重复结构单元选自由通式(1)表示的结构; 其中A是下面的组之一。 本发明提供了具有优异的透明性,耐热性和机械强度以及低双折射性的有机光学部件。 本发明还提供了芳香族聚酰胺固有的耐热性优异的低介电常数和优异的透明性,加工性和热稳定性的芳香族聚酰胺。

    Polyimide based resin composition
    4.
    发明授权
    Polyimide based resin composition 失效
    聚酰亚胺基树脂组合物

    公开(公告)号:US5763537A

    公开(公告)日:1998-06-09

    申请号:US577517

    申请日:1995-12-22

    CPC分类号: C08K5/3417

    摘要: A is a polyimide based resin molding composition comprising 100 parts by weight of crystalline polyimide having recurring structural units of the formula (1): ##STR1## and 1.about.50 parts by weight of crystallization accelerators selected from bisimide compounds of specific structure, a mixture of bisimide compounds, and imide based oligomer. The composition remarkably accelerates the crystallization velocity of polyimide of the formula (1), crystallization can be completed within a greatly reduced cooling time after melt processing, and the crystallized polyimide resin has excellent properties.

    摘要翻译: A是一种聚酰亚胺基树脂模制组合物,其包含100重量份具有式(1)的重复结构单元的结晶聚酰亚胺:1分钟和50分钟的选自特定结构的双酰亚胺化合物的结晶促进剂 ,双酰亚胺化合物和基于酰亚胺的低聚物的混合物。 该组合物显着加速式(1)的聚酰亚胺的结晶速度,在熔融加工后的冷却时间内可以结晶化,结晶化聚酰亚胺树脂具有优异的性能。