Extrusion powder
    1.
    发明授权
    Extrusion powder 失效
    挤出粉

    公开(公告)号:US3951930A

    公开(公告)日:1976-04-20

    申请号:US506780

    申请日:1974-09-17

    IPC分类号: C08F14/26 C08F2/16 C08F4/38

    CPC分类号: C08F14/26 Y10T428/294

    摘要: A tetrafluoroethylene polymer or copolymer suitable e.g. for extrusion on to wire to give an insulated conductor is produced using a dual catalyst system. The first catalyst component is a catalyst giving a high molecular weight (low SSG) such as ammonium persulphate (APS). The second component is a dibasic acid peroxide e.g. disuccinic acid peroxide (DSAP) which is added after the polymerisation has reached 20% conversion. The latter catalyst is found to produce a copolymer powder which can be extruded on to wire to give faultfree coating.

    摘要翻译: 适用的四氟乙烯聚合物或共聚物。 使用双重催化剂体系制造用于挤出到线上以产生绝缘导体。 第一催化剂组分是产生高分子量(低SSG)的催化剂,例如过硫酸铵(APS)。 第二组分是二元酸过氧化物,例如 在聚合后加入的二琥珀酸过氧化物(DSAP)达到20%转化率。 发现后一种催化剂产生共聚物粉末,该共聚物粉末可以挤出到电线上以产生无错涂层。