Mg-Al-based hydrotalcite-type particles, chlorine-containing resin composition and process for producing the particles
    8.
    发明授权
    Mg-Al-based hydrotalcite-type particles, chlorine-containing resin composition and process for producing the particles 失效
    Mg-Al系水滑石型颗粒,含氯树脂组合物及其制造方法

    公开(公告)号:US06509405B1

    公开(公告)日:2003-01-21

    申请号:US09495309

    申请日:2000-02-01

    IPC分类号: C08L322

    摘要: A chlorine-containing resin composition for covering an electric wire of the present invention, has a heat stability of not less than 240 minutes and a volume resistivity of 5.0×1013 to 1.0×1016 &OHgr;·cm when measured according to JIS K6723, and comprises: 100 parts by weight of a chlorine-containing resin, and 1.5 to 10 parts by weight of Mg—Al-based hydrotalcite-type particles having a composition represented by the formula: [MgxCay]·Alz·(OH)2·An−p·mH2O  wherein 0.2≦z/(x+z)≦0.6; 0.01≦y/(x+z)≦0.20; x+y+z=1; p=(2(x+y−1)+3z)/n; A is a n-valent anion; and m is more than 0 and not more than 0.75, having a plate surface diameter of 0.1 to 1.0 &mgr;m and a thickness of 0.02 to 0.08 &mgr;m, and containing calcium at a molar ratio of Ca to a sum of Mg and Al of 0.01:1 to 0.20:1, and having a heat-resisting time of not less than 4 hours upon a chlorine-containing resin composition containing the Mg—Al-based hydrotalcite-type particles.

    摘要翻译: 本发明的电线覆盖用含氯树脂组合物,根据JIS K6723测定时,其热稳定性为240分钟以上,体积电阻率为5.0×10 13〜1.0×10 16Ω/英寸,包含:100 重量份的含氯树脂和1.5至10重量份具有由下式表示的组成的Mg-Al基水滑石型颗粒:其中0.2 <= z /(x + z)≤= 0.6; 0.01 <= y /(x + z)<= 0.20; x + y + z = 1; p =(2(x + y-1)+ 3z)/ n; A是n价阴离子; m为0以上且0.75以下,板表面直径为0.1〜1.0μm,厚度为0.02〜0.08μm,Ca与Mg与Al之和的摩尔比为0.01: 1〜0.20:1,并且在含有Mg-Al系水滑石类粒子的含氯树脂组合物上具有不低于4小时的耐热时间。