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    Components and catalysts for the polymerization of olefins
    93.
    发明授权
    Components and catalysts for the polymerization of olefins 有权

    公开(公告)号：US11220519B2

    公开(公告)日：2022-01-11

    申请号：US17267601

    申请日：2019-07-25

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： Simona Guidotti ,  Dario Liguori ,  Giampiero Morini ,  Gianni Vitale

    IPC: C07F7/28 ,  C07F3/02 ,  C07F9/94 ,  C08F210/06

    Abstract: A solid catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, made from or containing Mg, Ti, Bi, halogen and an electron donor obtained from a process including the steps:
    (a) dissolving a Mg(OR)2 compound wherein R groups, equal to or different from each other, are C1-C15 hydrocarbon groups optionally containing a heteroatom selected from O, N and halogen, in an organic liquid medium, thereby forming a first liquid mixture;
    (b) contacting the first liquid mixture (a) with TiCl4, thereby forming a second liquid mixture absent a solid phase, and
    (c) subjecting the second liquid mixture (b) to conditions, whereby solid catalyst particles are formed,
    wherein (i) a Bi compound and (ii) a bidentate electron donor compound are present in one or more of steps (a) to (c) and/or contacted with the solid catalyst particles obtained from (c).

    Propylene ethylene random copolymer
    94.
    发明授权
    Propylene ethylene random copolymer 有权

    公开(公告)号：US11186664B2

    公开(公告)日：2021-11-30

    申请号：US16647672

    申请日：2018-08-30

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： Paola Massari ,  Claudio Cavalieri ,  Davide Tartari ,  Tiziana Caputo ,  Isabella Maria Vittoria Camurati

    IPC: C08F210/16 ,  C08F210/06 ,  C08F2/34 ,  C08L23/14

    Abstract: A propylene ethylene copolymer having: i) xylene soluble fraction at 25° C. ranging from 14 wt % to 27 wt %; ii) intrinsic viscosity of the fraction soluble in xylene at 25° C. ranging from 1.0 to 2.4 dl/g; iii) melt flow rate, MFR, ranging from 1.0 g/10 min to 50.0 g/10 min; iv) an ethylene derived units content ranging from 5.0 wt % to 12.0 wt %; v) the ethylene derived units content on the fraction insoluble in xylene at 25° C. ranging from 2.5 wt % to 6.0 wt %; vi) the ethylene derived units content on the fraction soluble in xylene at 25° C. ranging from 15.2. wt % to 30.2 wt %; and vii) C13 NMR sequences PEP measured on the fraction insoluble in xylene at 25° C. ranging from 3.5 mol % to 5.5 mol % and C13 NMR sequences PEP measured on the fraction soluble in xylene at 25° C. ranging from 11.0 mol % to 14.2 mol %.

    BUTENE-1 POLYMER COMPOSITION HAVING HIGH MELT FLOW RATE
    98.
    发明申请
    BUTENE-1 POLYMER COMPOSITION HAVING HIGH MELT FLOW RATE 有权

    公开(公告)号：US20210130509A1

    公开(公告)日：2021-05-06

    申请号：US16633259

    申请日：2018-08-03

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： ROBERTA MARCHINI ,  STEFANO SPATARO ,  ROBERTA PICA

    IPC: C08F10/08 ,  C08F210/08 ,  C08F2/00 ,  C08F4/659 ,  C08F4/6592 ,  C08L23/20 ,  B01J19/00 ,  C09J123/20 ,  C08F210/16

    Abstract: A butene-1 polymer composition having MFR values of from 20 to less than 100 g/10 min., measured according to ISO 1133 at 190° C. with a load of 2.16 kg, made from or containing: A) a butene-1 homopolymer or a copolymer of butene-1 with one or more comonomers selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of up to 5% by mole; and B) a copolymer of butene-1 with one or more comonomers selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of from 6% to 20% by mole; wherein the composition having a total copolymerized comonomer content from 4% to 15% by mole, referred to the sum of A) and B), and a content of fraction soluble in xylene at 0° C. of 75% by weight or less, determined on the total weight of A) and B).

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