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    CATATLYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS
    252.
    发明申请
    CATATLYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS 有权

    公开(公告)号：US20220332856A1

    公开(公告)日：2022-10-20

    申请号：US17620968

    申请日：2020-06-24

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： ALESSANDRO MIGNOGNA ,  DARIO LIGUORI ,  GIAMPIERO MORINI

    IPC: C08F4/642 ,  C08F10/06

    Abstract: A solid catalyst component for the polymerization of olefins made from or containing Mg, Ti and an electron donor of formula (I) where the R1 and R5 groups, equal to or different from each other, are selected from C1-C15 hydrocarbon groups, R2 group is selected from C2-C10 hydrocarbon groups, R3 to R4 groups, independently, are selected from hydrogen or C1-C20 hydrocarbon groups, optionally fused together to form one or more cycles, with the proviso that at least one of R3 to R4 groups is a C1-C20 alkyl group.

    CORE-SKIN FIBER COMPRISING PROPYLENE ETHYLENE RANDOM COPOLYMER
    253.
    发明申请
    CORE-SKIN FIBER COMPRISING PROPYLENE ETHYLENE RANDOM COPOLYMER 有权

    公开(公告)号：US20220251745A1

    公开(公告)日：2022-08-11

    申请号：US17617427

    申请日：2020-05-26

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： ROBERTO DE PALO ,  RENAUD LEMAIRE ,  JAUME MARTI PORQUERES

    IPC: D04H1/4382

    Abstract: A skin-core fiber having a skin of a propylene ethylene copolymer having: i) xylene soluble fraction from 14 wt % to 27 wt %; ii) intrinsic viscosity of the fraction soluble in xylene at 25° C. from 1.0 to 2.4 dl/g; iii) melt flow rate, MFR, from 12 g/10 min to 60 g/10 min; iv) an ethylene derived units content from 5.0 wt % to 12.0 wt %; v) the ethylene derived units content of the fraction insoluble in xylene from 2.5 wt % to 6.0 wt %; vi) the ethylene derived units content of the fraction soluble in xylene ranging from 15.2. wt % to 30.2 wt %; vii) C13 NMR sequences PEP on the fraction insoluble in xylene from 3.5 mol % to 5.5 mol %; and viii) C13 NMR sequences PEP on the fraction soluble in xylene from 11.0 mol % to 14.2 mol %; and a core of a polyethylene having a density between 0.940 g/cm3 to 0.975 g/cm3.

    Process For The Preparation of Polypropylene
    254.
    发明申请
    Process For The Preparation of Polypropylene 有权

    公开(公告)号：US20220144984A1

    公开(公告)日：2022-05-12

    申请号：US17602027

    申请日：2020-04-01

    Applicant: Basell Poliolefine Italia S.r.l.

    Inventor： Diego Brita

    IPC: C08F110/06 ,  C08K5/3417 ,  C08K3/34 ,  C08K3/04

    Abstract: A process for the preparation of a propylene polymer containing a coloring agent, including the steps of:
    (i) forming a solid mixture (a-b)of (a) a ZN catalyst component made from or containing Mg, Ti, halogen and an internal electron donor compound, and (b) a coloring agent made from or containing at least a pigment; wherein the mixture being in a weight ratio (b):(a) ranging from 0.01:1 to 0.4:1; and
    (ii) feeding the mixture (a-b) to a polymerization reactor and operating the reactor under polymerization conditions to produce the propylene polymer.
    wherein the process having the b:a weight ratio and a time in days elapsed between mixture formation and use in polymerization fall below the curve defined by the equation y=3+0.832x−1,17 wherein y is the time in days elapsed between mixture formation and use in polymerization and x is the (b):(a) weight ratio.

    Polypropylene composition and molded article
    256.
    发明授权
    Polypropylene composition and molded article 有权

    公开(公告)号：US11306198B2

    公开(公告)日：2022-04-19

    申请号：US16981092

    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: C08L23/14

    Abstract: A polypropylene composition made from or containing (i) component (1) made from or containing a propylene/ethylene copolymer containing 2 to 4% by weight of an ethylene-derived unit, based upon the total weight of the propylene/ethylene copolymer; and (ii) component (2) made from or containing an ethylene/propylene copolymer containing 65 to 87% by weight of an ethylene-derived unit, based upon the total weight of the ethylene/propylene copolymer; wherein the polypropylene composition has 1) a weight ratio of component (1) to component (2) in the range of 65:35 to 77:23, 2) an intrinsic viscosity of xylene solubles (XSIV) in the range of 0.8 to 1.4 dl/g, 3) a MFR (at 230° C. under a load of 2.16 kg) in the range of 15 to 40 g/10 min., and 4) the absence of a crystal nucleating agent.

    POLYPROPYLENE COMPOSITION AND MOLDED ARTICLE
    260.
    发明申请
    POLYPROPYLENE COMPOSITION AND MOLDED ARTICLE 有权

    公开(公告)号：US20210230412A1

    公开(公告)日：2021-07-29

    申请号：US17051109

    申请日：2019-04-25

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： YUTAKA YOKOYAMA ,  AKIHIRO KAMIMURA ,  HIROSHI KAJIOKA

    IPC: C08L23/12 ,  B29C45/00 ,  C08J3/12 ,  C08L23/16

    Abstract: A polypropylene composition made from or containing a polymer made from or containing: (i) component (1) made from or containing a propylene homopolymer having MFR of 100 to 300 (at a temperature of 230° C. under a load of 2.16 kg) and containing more than 97.5% by weight of xylene insolubles (XI), wherein XI has a Mw/Mn of 4 to 10; (ii) component (2) made from or containing an ethylene/propylene copolymer containing 15 to 50% by weight of an ethylene-derived unit; wherein 1) relative proportions of component (1) and component (2) are, respectively, not less than 50 parts by weight but less than 70 pbw and more than 30 pbw but not more than 50 pbw, 2) intrinsic viscosity of xylene solubles (XSIV) of the polymer is in the range of 1.5 to 4.0 dl/g, 3) MFR of the polymer is in the range of 20 to 100 g/10 min.

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