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    PROCESS FOR THE PREPARATION OF A COLORED POLYPROPYLENE
    1.
    发明申请
    PROCESS FOR THE PREPARATION OF A COLORED POLYPROPYLENE 有权

    公开(公告)号：US20220056174A1

    公开(公告)日：2022-02-24

    申请号：US17298812

    申请日：2019-11-26

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： DIEGO BRITA ,  CLAUDIO CAVALIERI

    IPC: C08F110/06 ,  C08F2/44 ,  C08F4/646 ,  C08F4/651 ,  C08F4/654 ,  C08K3/04 ,  C08K3/013 ,  C08K5/00

    Abstract: A process for the preparation of a propylene polymer containing a coloring agent in an amount ranging from 0.2 to 30 ppm referred to the weight of propylene polymer, including the steps of: a) providing a solid ZN catalyst component made from or containing Mg, Ti, halogen and an internal electron donor compound, wherein the Ti being in an amount ranging from 0.1 to 10% of the total weight of solid catalyst component; b) providing a coloring agent made from or containing at least a pigment; c) mixing the ZN catalyst particles and the coloring agent in a liquid hydrocarbon medium, thereby obtaining a slurry and d) feeding the slurry to a polymerization reactor and subjecting the reactor to polymerization conditions, thereby yielding the propylene polymer.

    PRE-POLYMERIZED CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS
    4.
    发明申请
    PRE-POLYMERIZED CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS 审中-公开
    用于烯烃聚合的预聚合催化剂组分

    公开(公告)号：US20160137759A1

    公开(公告)日：2016-05-19

    申请号：US14899296

    申请日：2014-06-10

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： DIEGO BRITA ,  GIANNI COLLINA ,  GIAMPIERO MORINI

    IPC: C08F10/02

    CPC classification number: C08F10/02 ,  C08F110/06 ,  C08F4/6492 ,  C08F4/6543 ,  C08F110/02 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/15 ,  C08F2500/17

    Abstract: The present technology relates to a pre-polymerized catalyst component for the polymerization of olefins, characterized by a non-stereospecific solid catalyst component comprising Ti, Mg and a halogen and an amount of a (co)polymer of an alpha-olefin CH2═CHR1, where R is a C1-C12 hydrocarbon group ranging from 0.1 to 500 g per g of said solid catalyst component. In some embodiments, the (co)polymer is characterized by an isotacticity, expressed in terms isotactic pentads, of higher than 60 molar % and an intrinsic viscosity, measured in tetraline at 135° C., of at least 1.0 dL/g.

    Abstract translation: 本技术涉及用于烯烃聚合的预聚合催化剂组分，其特征在于包含Ti，Mg和卤素的非立体特异性固体催化剂组分和一定量的α-烯烃CH 2 = CHR（ 其中R为每克所述固体催化剂组分0.1-500克的C1-C12烃基。 在一些实施方案中，（共）聚合物的特征在于以等于十五摩尔％的全同立构五单元组表示的全同立构规整度，并且在135℃下在四氢化萘中测得的特性粘度为至少1.0dL / g。

    PRECURSORS AND CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS
    6.
    发明申请
    PRECURSORS AND CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS 有权

    公开(公告)号：US20210395401A1

    公开(公告)日：2021-12-23

    申请号：US17281441

    申请日：2019-09-17

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： DIEGO BRITA

    IPC: C08F4/654 ,  C08F4/02 ,  C08F10/00

    Abstract: A Ziegler-Natta catalyst component precursor made from or containing a mechanical mixture of (a) distinct particles of adducts of formula MgCl2(R1OH)n where R is a C1-C8 alkyl group and n is from 0.2 to 6 having average particle size (P50a) ranging from 5 to 100 μm; and (b) from 0.2 to 5.0% by weight of distinct particles of a solid compound containing more than 50% by weight of Sift units and having average particle size (P50b), wherein the ratio P50b/P50a ranges from 0.4 to 1.5.

    PROCESS FOR THE PREPARATION OF CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS
    7.
    发明申请
    PROCESS FOR THE PREPARATION OF CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS 审中-公开

    公开(公告)号：US20200231716A1

    公开(公告)日：2020-07-23

    申请号：US16647766

    申请日：2018-09-07

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： DIEGO BRITA ,  NICOLO ARICH DE FINETTI ,  OFELIA FUSCO ,  BENEDETTA GADDI

    IPC: C08F4/659 ,  C08F10/06

    Abstract: A process for the preparation of a solid catalyst component for the polymerization of CH2═CHR olefins, wherein R is hydrogen or hydrocarbyl radical with 1-12 carbon atoms, made from or containing a Ti compound on a Mg chloride based support, including the steps of (a) reacting a Mg based compound with a liquid medium made from or containing a Ti compound, at a temperature ranging from 0 to 150° C., thereby yielding solid particles; and (b) suspending the solid particles coming from step (a) in a liquid medium made from or containing hydrocarbons at a temperature ranging from 10 to 100° C., wherein step (a) or (b) is carried out in the presence of 0.2 to 20.0% by weight, with respect to the amount of Mg compound, of particles of a solid compound containing more than 50% by weight of SiO2 units and having average particle size from 1 to 100 μm.

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