Polymer compositions suitable for producing plated products

    公开(公告)号:US12037688B2

    公开(公告)日:2024-07-16

    申请号:US17602369

    申请日:2020-03-23

    CPC classification number: C23C18/1641 C08L23/12 C23C18/1653 C23C18/31 C25D5/14

    Abstract: A method for the production of metal-plated articles, including the step of



    depositing an electrically-conductive metallic layer on a surface of an article comprising a polymer composition comprising by weight:

    a) 40-60% of a propylene homopolymer, or propylene copolymer containing up to 5% by weight of ethylene and/or another C4-C10 α-olefin, and having a melting temperature of 155° C. or higher and/or a fraction soluble in xylene at 25° C. of 10% by weight or less;
    b) 10-20% of an ethylene-based elastoplastic copolymer, optionally, a copolymer of ethylene with C4-C10 α-olefin;
    c) 2-6% of a styrene block copolymer;
    d) optionally, up to 3% of a propylene homopolymer having a Melt Flow Rate (230° C./2.16 kg) of 500 g/10 min. or more;
    e) 15-50% of a filler; and
    f) optionally, up to 6% of a color pigment.

    PRE-POLYMERIZED CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS

    公开(公告)号:US20240218091A1

    公开(公告)日:2024-07-04

    申请号:US18285835

    申请日:2022-03-24

    CPC classification number: C08F10/02

    Abstract: A pre-polymerized catalyst component for the polymerization of olefins made from or containing (a) a solid catalyst component made from or containing Ti, Mg, and a halogen and optionally, a bidentate electron donor compound (BE) in an amount such that the molar ratio (BE)/Ti ranges from 0 to 0.3, and (b) an ethylene (co)polymer in an amount ranging from 0.1 g up to less than 30 g per g of the solid catalyst component, and having an intrinsic viscosity, measured in tetraline at 135° C., of at least 3.0 dL/g, wherein the pre-polymerized catalyst component has a porosity measured by mercury method in the range 0.1 to 1 cm3/g.

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