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    POLYMER COMPOSITION
    2.
    发明申请
    POLYMER COMPOSITION 有权

    公开(公告)号：US20220098401A1

    公开(公告)日：2022-03-31

    申请号：US17424943

    申请日：2020-01-27

    申请人： BOREALIS AG

    发明人： John Jamieson ,  Jari-Jussi Ruskeeniemi ,  Floran Prades ,  Noureddine Ajellal ,  Tua Sundholm ,  Jouni Purmonen ,  Angelica Maëlle Delphine Legras ,  Katja Klimke ,  Andreas Albrecht

    IPC分类号： C08L51/06 ,  C08L23/08 ,  C08F222/06 ,  C09J151/06

    摘要： The present invention relates to a polymer composition comprising (A) from 60 to 90 wt % of a non-elastomeric polyethylene; (B) from 9.0 to 38 wt % of an elastomer; wherein onto component (A) or components (A) and (B) an acid grafting agent (C) has been grafted in an amount of from 0.01 to 3.0 wt %, all based on the total weight of the polymer composition, and wherein the polymer composition has two distinct peaks and a valley between said peaks in the GPC curve and a Z value, determined from the areas below the two peaks of the GPC curve, of at least −0.3, wherein the Z-value is determined according to formula (I) Z=s/Abs(B−A) (I) wherein Abs(B−A) is the absolute value of (B−A); A=the area, between the tangent parallel to the MW axis going through log M (Min) and the LS15 signal, from log M of 5.1 to log M value where the LS signal is minimum log M (Min), in the log M range between 5.1 and 6; B=the area, between the tangent parallel to the MW axis going through log M (Min) and the LS 15 signal, from log M(Min) to the point where the LS signal is crossed again; and s is the slope between the two peaks of the GPC curve, defined at log M of 5.1 and 6, wherein the GPC curve is defined as the concentration normalized LS 15 signal along the molecular weight of conventional GPC, obtained from the GPC-VISC-LS analysis, a multi-layer structure such as a coated metal pipe, comprising one layer comprising said polymer composition and the use of said polymer composition as adhesive polymer composition and for the production of a multi-layer structure.

    POLYPROPYLENE COMPOSTION FOR CABLE INSULATION
    10.
    发明公开
    POLYPROPYLENE COMPOSTION FOR CABLE INSULATION 审中-公开

    公开(公告)号：US20240158623A1

    公开(公告)日：2024-05-16

    申请号：US18283086

    申请日：2022-03-23

    申请人： Borealis AG

    发明人： Thomas Gkourmpis ,  Katja Klimke ,  Per-Ola Hagstrand ,  Ulf Nilsson ,  Lars Efraimsson ,  Anette Johansson

    IPC分类号： C08L23/14 ,  H01B3/30

    CPC分类号： C08L23/14 ,  H01B3/307 ,  C08L2203/206 ,  C08L2207/02

    摘要： The present invention relates to a polypropylene composition comprising a copolymer of propylene and comonomer units selected from ethylene and alpha-olefins having from 4 to 12 carbon atoms with a total amount of comonomer units of from 10.0 to 16.0 wt %, based on the total amount of monomer units in the polypropylene composition, wherein the polypropylene composition has a xylene cold soluble (XCS) fraction in a total amount of from 25.0 to 50.0 wt %, based on the total weight amount of the polypropylene composition, with an amount of comonomer units of at least 22 wt %, based on the total amount of monomer units in the xylene cold soluble (XCS) fraction, a melt flow rate MFR2 of from 0.5 to 2.5 g/10 min, a flexural modulus of not more than 385 MPa, and wherein the polypropylene composition is free of an alpha-nucleating agent, an article comprising said polypropylene composition, preferably a cable comprising an insulation layer comprising said polypropylene composition and the use of said polypropylene composition as cable insulation for medium and high voltage cables.