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1. 发明授权

US4228255A Method for producing crosslinked polyethylenes 失效
标题翻译：交联聚乙烯的制备方法
公开(公告)号：US4228255A
公开(公告)日：1980-10-14
申请号：US53108
申请日：1979-06-28
申请人： Ikuo Fujimoto , Setsuya Isshiki , Yoshikazu Kurita , Yoji Sato
发明人： Ikuo Fujimoto , Setsuya Isshiki , Yoshikazu Kurita , Yoji Sato
IPC分类号： C08F255/02 , C08L43/04
CPC分类号： C08F255/02
摘要： A novel method for crosslinking a polyolefin comprising reacting a polyolefin, which is a low density polyethylene having a density less than 0.93 and melt index of 0.1-0.5 g/10 min. or a polyolefin mixture containing a low density polyethylene having a density less than 0.93 as major component, with an organic silane and a free radical generating compound to form a silane-grafted polyolefin, then mixing silane-grafted polyolefin with a silanol condensation catalyst, and heating them. According to this method, the crosslinking takes place concurrently with forming by extrusion, and a shaped article having a high degree of crosslinking with smooth surface is obtained. The method according to this invention is especially suited for covering electrical wires with polyolefin.
摘要翻译：一种用于交联聚烯烃的新方法，包括使聚烯烃（其是密度小于0.93，熔体指数为0.1-0.5g / 10min的低密度聚乙烯）反应。或含有密度小于0.93作为主要成分的低密度聚乙烯的聚烯烃混合物，与有机硅烷和产生自由基的化合物形成硅烷接枝聚烯烃，然后将硅烷接枝聚烯烃与硅烷醇缩合催化剂混合，以及加热它们。根据该方法，通过挤出成型同时进行交联，得到具有光滑表面交联度高的成型制品。根据本发明的方法特别适用于用聚烯烃覆盖电线。

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