Process for the production of highly expanded polyolefin insulated wires
and cables
    143.
    发明授权
    Process for the production of highly expanded polyolefin insulated wires and cables 失效
    用于生产高度膨胀的聚烯烃绝缘电线和电缆的方法

    公开(公告)号:US4352701A

    公开(公告)日:1982-10-05

    申请号:US143684

    申请日:1980-04-25

    摘要: A process for producing a highly expanded polyolefin insulated cable comprising the steps of feeding a compound of polyolefin, nucleating agent and volatile liquid to an extruder, heat extruding said compound through said extruder onto an inner conductor passing through said extruder to cover the outer periphery of said inner conductor thereby forming an insulation layer of highly expanded polyolefin foam having a foaming ratio in excess of 2.5 times (60% expansion degree) tightly adhered to said inner conductor.

    摘要翻译: 一种制造高度膨胀的聚烯烃绝缘电缆的方法,包括以下步骤:将聚烯烃,成核剂和挥发性液体的化合物进料到挤出机中,将所述化合物通过所述挤出机热挤出到穿过所述挤出机的内导体上,以覆盖外层 所述内部导体由此形成发泡率超过2.5倍(膨胀度为60%)的高度发泡的聚烯烃泡沫的绝缘层,紧密粘附在所述内部导体上。