CATALYST COMPONENT FOR OLEFIN POLYMERIZATION AND CATALYST COMPRISING THE SAME
    37.
    发明申请
    CATALYST COMPONENT FOR OLEFIN POLYMERIZATION AND CATALYST COMPRISING THE SAME 有权
    用于烯烃聚合的催化剂组分和包含其的催化剂

    公开(公告)号:US20120252992A1

    公开(公告)日:2012-10-04

    申请号:US13501585

    申请日:2010-10-18

    摘要: A catalyst component for olefin polymerization is disclosed, which comprises a reaction product of the following components: (1) a spheric carrier; (2) a titanium compound; and optionally, (3) an electron donor, wherein the spheric carrier comprises a reaction product of at least the following components: (a) a magnesium halide represented by a general formula of MgX2-nRn, wherein X is independently chloride or bromide, R is a C1-C14 alkyl, a C6-C14 aryl, a C1-C14 alkoxy, or a C6-C14 aryloxy, and n is 0 or 1; (b) an alcohol compound; and (c) an epoxy compound represented by a general formula (I), wherein R2 and R3 are independently hydrogen, a C1-C5 linear or branched alkyl, or a C1-C5 linear or branched haloalkyl. When the catalyst of the invention is used in olefin polymerization, in particular in propylene polymerization, at least one of the following desired effects can be achieved: high polymerization activity of catalyst, high stereospecificity of catalyst, good hydrogen response of catalyst, high stereoregularity of polymer having high melt index, and low content of polymer fines.

    摘要翻译: 公开了用于烯烃聚合的催化剂组分,其包含以下组分的反应产物:(1)球形载体; (2)钛化合物; 并且任选地,(3)电子给体,其中所述球载体包含至少以下组分的反应产物:(a)由通式MgX 2 -nR n表示的卤化镁,其中X独立地是氯或溴,R 是C 1 -C 14烷基,C 6 -C 14芳基,C 1 -C 14烷氧基或C 6 -C 14芳氧基,n是0或1; (b)醇化合物; 和(c)由通式(I)表示的环氧化合物,其中R2和R3独立地是氢,C1-C5直链或支链烷基或C1-C5直链或支链卤代烷基。 当本发明的催化剂用于烯烃聚合时,特别是在丙烯聚合中,可以达到以下期望效果中的至少一个:催化剂的高聚合活性,催化剂的高立体定向性,催化剂的氢气响应良好,立体定向性高 聚合物具有高熔体指数,低含量的聚合物细粉。