Flame retardant carbonate polymers and use thereof
    1.
    发明授权
    Flame retardant carbonate polymers and use thereof 失效
    阻燃性碳酸酯聚合物及其用途

    公开(公告)号:US06518347B1

    公开(公告)日:2003-02-11

    申请号:US09749101

    申请日:2000-12-27

    IPC分类号: C08K509

    摘要: Flame retardant carbonate polymer compositions and articles prepared therefrom are described. The carbonate polymer contains a flame retardant additive comprising metal salts of a highly fluorinated methide, amide or imide anion. The composition provides flame retardancy at relatively low levels of additive, allows a broader processing window of additive compositions and can have high transparency.

    摘要翻译: 描述阻燃性碳酸酯聚合物组合物及其制备的制品。 碳酸酯聚合物含有包含高度氟化的甲基化物,酰胺或酰亚胺阴离子的金属盐的阻燃添加剂。 该组合物在相对低的添加剂水平下提供阻燃性,允许添加剂组合物的更宽的加工窗口并且可以具有高透明度。

    Breakaway post coupling
    4.
    发明授权
    Breakaway post coupling 失效
    分离柱联轴器

    公开(公告)号:US5535555A

    公开(公告)日:1996-07-16

    申请号:US560282

    申请日:1995-11-17

    IPC分类号: E01F9/018 B04C1/00

    摘要: A breakaway post coupling with a hollow, tubular sleeve which accomodates a ground-mounted stub post and a top, sign-supporting post. The sleeve is held onto the posts by a plurality of pins which engage a corresponding plurality of slots in the sleeve. Collars slidably engage the sleeve and force the pins into the post material as the collars are drawn over the sleeve and pins. A plurality of cutouts in the sleeve define a shear point in the coupling. When the top post is struck by a vehicle, the coupling breaks at the shear point, leaving an intact stub post upon which a new top post can be joined.

    摘要翻译: 与中空管状套管的分离柱联接,其适应地面安装的桩柱和顶部的标志支撑柱。 套筒通过与套筒中相应的多个槽接合的多个销子固定在支柱上。 当套环被套在套筒和销上时,轴环可滑动地接合套筒并且将销强制到柱材料中。 套筒中的多个切口限定了联轴器中的剪切点。 当顶部柱被车辆撞击时,联轴节在剪切点处断裂,留下一个完整的短柱,在其上可以连接新的顶部柱。