CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS

    公开(公告)号:US20190338055A1

    公开(公告)日:2019-11-07

    申请号:US16097103

    申请日:2017-04-24

    Abstract: The present disclosure provides a solid catalyst component obtainable by a process including: (a) a first step in which Ti(OEt)4, is reacted with a Mg based compound of formula MgCln(ORI)2-n, where n is from about 0.5 to about 1.5, RI is a C1-C10 alkyl groups, the Ti(OEt)4 and the Mg compound are used in amounts such that the Ti/Mg molar ratio is of about 0.2 to about 0.4, the reaction temperature is about 110 to about 130° C., and the reaction time is about 2 to about 5 hours; and (b) a subsequent step in which the product obtained in step (a) is reacted with a Ti compound of the formula Ti(ORI)4-yCly, where y is a number between 3 and 4.

    CATALYST FOR THE POLYMERIZATION OF OLEFINS
    35.
    发明申请

    公开(公告)号:US20190055330A1

    公开(公告)日:2019-02-21

    申请号:US15759143

    申请日:2016-08-30

    Abstract: A catalyst for the homopolymerization or copolymerization of CH2═CHR olefins, made from or containing the product obtained by contacting: (i) a solid catalyst component made from or containing Ti, Mg, Cl, and an internal electron donor compound, wherein the solid catalyst component contains from about 0.1 to about 50 wt % of Bi, based upon the total weight of the solid catalyst component; (ii) an alkyl aluminum compound and, (iii) an external electron donor compound having the formula: (R1)aSi(OR2)b wherein R1 and R2 are independently selected from the group consisting of alkyl radicals with 1-8 carbon atoms and a is 0 or 1 and a+b=4.

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