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    CATALYST FOR THE POLYMERIZATION OF OLEFINS
    281.
    发明申请
    CATALYST FOR THE POLYMERIZATION OF OLEFINS 审中-公开

    公开(公告)号：US20190055330A1

    公开(公告)日：2019-02-21

    申请号：US15759143

    申请日：2016-08-30

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： FABRIZIO PIEMONTESI ,  GIANNI VITALE ,  DARIO LIGUORI ,  GIAMPIERO MORINI

    IPC: C08F10/06

    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.

    Catalyst components for the polymerization of olefins
    284.
    发明授权
    Catalyst components for the polymerization of olefins 有权

    公开(公告)号：US10113013B2

    公开(公告)日：2018-10-30

    申请号：US15128830

    申请日：2015-03-24

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： Alessandro Mignogna ,  Giampiero Morini

    IPC: C08F4/642 ,  C08F4/02 ,  C08F4/659 ,  C08F110/06 ,  C08L57/00 ,  C07C271/44 ,  C08F10/14

    Abstract: The present disclosure relates to a solid catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of the formula (I): where each Q is a group —COOR1, in which R1 is selected from C1-C15 hydrocarbon groups, optionally containing a heteroatom selected from the group consisting of halogens, P, S, N and O; or a group —CON(R2)2, in which R2 groups, equal to or different from each other, are hydrogen or R1 groups which can be fused together to form one or more cycles, and A is a bivalent bridging group with the proviso that the Q groups cannot be simultaneously a group —COOR1 or —CON(R2)2.

    Propylene-based polymer composition
    290.
    发明授权
    Propylene-based polymer composition 有权

    公开(公告)号：US09969870B2

    公开(公告)日：2018-05-15

    申请号：US15313456

    申请日：2015-04-28

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： Paola Massari ,  Marco Ciarafoni ,  Tiziana Caputo ,  Nicoletta Martini

    IPC: C08L23/16 ,  C08L23/14

    CPC classification number: C08L23/142 ,  C08L23/16 ,  C08L2205/025 ,  C08L2207/02 ,  C08L2205/02

    Abstract: A propylene polymer composition comprising: A) from 81 wt % to 91 wt % of a propylene ethylene copolymer containing from 1.0 wt % to 3.5 wt % of ethylene derived units having a fraction soluble in xylene at 25° C. comprised between 10 wt % and 3 wt %; and a melt flow rate ranging from 5 to 50 g/10 min; B) from 9 wt % to 19 wt %, of a copolymer of propylene and ethylene with from 21.0 wt % to 31.0 wt % of ethylene derived units; the sum A)+B) being 100; the composition having an melt flow rate ranging from 20 to 35 g/10 min; the xylene soluble fraction to 25° C. ranging from 13.0 wt % to 25.0 wt % and the intrinsic viscosity of the fraction soluble in xylene at 25° C. ranging from 0.7 dl/g to 1.9 dl/g.

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