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公开(公告)号:US5543478A
公开(公告)日:1996-08-06
申请号:US174269
申请日:1993-12-28
申请人: Masahiro Niwa , Yuji Sugano , Ken-ichi Uenishi , Hideto Kitada , Yoshihisa Yamaguchi , Eiko Kobayashi , Kunimichi Kubo , Akira Sano
发明人: Masahiro Niwa , Yuji Sugano , Ken-ichi Uenishi , Hideto Kitada , Yoshihisa Yamaguchi , Eiko Kobayashi , Kunimichi Kubo , Akira Sano
CPC分类号: C08F10/00
摘要: In the preparation of polyolefin in a vapor phase polymerization using catalysts comprising a solid catalyst component containing titanium and/or vanadium; and magnesium and an organoaluminum compound, when the reaction is stopped for a certain period of time, the restarting of reaction is possible by feeding in the first place an organoaluminum compound into the reaction system with retaining of polymer particles in the reactor.
摘要翻译: 在使用包含含有钛和/或钒的固体催化剂组分的催化剂进行气相聚合的聚烯烃的制备中; 和镁和有机铝化合物,当反应停止一定时间时,通过在反应器中保持聚合物颗粒首先将有机铝化合物进料到反应体系中,可以重新开始反应。