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    Polypropylene composition and molded article
    152.
    发明授权
    Polypropylene composition and molded article 有权

    公开(公告)号：US11339280B2

    公开(公告)日：2022-05-24

    申请号：US16981217

    申请日：2019-03-15

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： Takeshi Tsukahara ,  Nobuyuki Tsurumi ,  Shitoshi Kanno ,  Kunio Yamamoto ,  Takeshi Nakajima

    IPC: C08L23/16 ,  C08L23/14 ,  C08L23/08

    Abstract: A polypropylene composition made from or containing: (i) component (1) made from or containing a propylene/ethylene copolymer containing more than 1.5% by weight and not more than 4% by weight of an ethylene-derived unit; (ii) component (2) made from or containing an ethylene/propylene copolymer containing 65 to 87% by weight of an ethylene-derived unit; and (iii) 0.01 to 0.5 parts by weight of a crystal nucleating agent, based on a total of 100 parts by weight of component (1) and component (2); wherein the polypropylene composition has 1) weight ratio of component (1) to component (2) is in the range of 80:20 to 90:10, 2) intrinsic viscosity of xylene solubles (XSIV) in the range of 0.8 to 1.4 dl/g, 3) MFR (at 230° C. under a load of 2.16 kg) in the range of 5 to 15 g/10 min., 4) viscosity ratio in the range of 0.40 to 0.80 where Viscosity ⁢ ⁢ ratio = XSIV Intrinsic ⁢ ⁢ viscosity ⁢ ⁢ of ⁢ ⁢ component ⁢ ⁢ ( 1 ) .

    COMPOSITIONS OBTAINED FROM RECYCLED POLYOLEFINS
    153.
    发明申请
    COMPOSITIONS OBTAINED FROM RECYCLED POLYOLEFINS 有权

    公开(公告)号：US20220145057A1

    公开(公告)日：2022-05-12

    申请号：US17438740

    申请日：2020-02-20

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： CLAUDIO CAVALIERI ,  MONICA GALVAN ,  MARCO CIARAFONI

    IPC: C08L23/16 ,  C08L23/12 ,  C08L23/08

    Abstract: A polyolefin composition made from or containing: T1) 50-90 wt % of a recycled polyolefin mixture; and T2) 10-50 wt % of a polyolefin component containing: A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer; B) 20-50% by weight of a copolymer of ethylene and a C3-C8 alpha-olefin made from or containing 0.1-20% by weight of alpha-olefin units; and C) 30-60% by weight of a copolymer of ethylene and propylene made from or containing 25-75% by weight of ethylene units.

    Components and catalysts for the polymerization of olefins
    157.
    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
    158.
    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 %.

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