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    FLAME RETARDANT POLYMER COMPOSITIONS
    1.
    发明申请
    FLAME RETARDANT POLYMER COMPOSITIONS 有权

    公开(公告)号：US20240409731A1

    公开(公告)日：2024-12-12

    申请号：US18699789

    申请日：2022-10-10

    Applicant: BOREALIS AG

    Inventor： Susanne Nilsson ,  Victoria Karlsson ,  Bernt-Åke Sultan ,  Elisabeth Ribarits ,  Linus Karlsson ,  Lars Efraimsson

    IPC: C08L23/08 ,  C08K3/04 ,  C08K9/04 ,  H01B7/295

    Abstract: The present invention relates to a flame retardant polymer composition comprising (A) 2.0 to 15.0 wt % of a copolymer of ethylene comprising units selected from the group consisting of methyl acrylate, methyl methacrylate or mixtures thereof; (B) 0 to 4.0 wt % of a polyethylene and/or polypropylene containing units originating from maleic acid anhydride; (C) 0.1 to 3.0 wt % of a silicon fluid and/or silicone gum; (D) 40.0 to 55.0 wt % of a magnesium hydroxide; (E) 2.0 to 15.0 wt % of a copolymer of ethylene and alpha olefin comonomer units having from 4 to 10 carbon atoms, which has a density of from 860 to 910 kg/m3, determined according to ISO 1183; (F) 18.0 to 35.0 wt % of a copolymer of ethylene and alpha olefin comonomer units having from 4 to 10 carbon atoms, which has a density of from 920 to 960 kg/m3, determined according to ISO 1183, and a melt flow rate MFR5 of from 0.05 to 2.50 g/10 min, determined according to ISO 1133 at a temperature of 190° C. and a load of 5.0 kg; and (G) 0 to 8.0 wt % of carbon black, wherein all weight percentages are based on the total weight of the flame retardant polymer composition; an article, such as a wire or cable, comprising said flame retardant polymer composition; and the use of said flame retardant polymer composition for the production of an article, such as a wire or cable.

    HIGHLY TRACK RESISTANT POLYETHYLENE COMPOSITIONS FOR WIRE AND CABLE APPLICATIONS
    5.
    发明申请
    HIGHLY TRACK RESISTANT POLYETHYLENE COMPOSITIONS FOR WIRE AND CABLE APPLICATIONS 有权

    公开(公告)号：US20240400803A1

    公开(公告)日：2024-12-05

    申请号：US18266010

    申请日：2021-12-28

    Applicant: Borealis AG

    Inventor： Lars Efraimsson ,  Bernt-Ake Sultan ,  Elisabeth Ribarits

    IPC: C08L23/08 ,  C08F210/16 ,  C08K3/04 ,  C08K3/26 ,  C08K5/098 ,  C08K5/17 ,  C08K9/04 ,  C08K13/06 ,  G02B6/44 ,  H01B3/44 ,  H01B7/295 ,  H01B9/00

    Abstract: The present invention relates to a crosslinkable polymer composition comprising a copolymer of ethylene and hexene, which is a multimodal polyethylene having at least two polymer fractions present in the polymer, each having different weight average molecular weights, the copolymer having a crystallinity, determined by DSC as described herein, of at least 40%, the polymer composition further comprising a carbon black content of not more than 4 wt. %, based on the total weight of the polymer composition, wherein the polymer composition does not contain a silane-modified polymeric component, and the polymer composition passes the tracking resistance test at least at 4.5 kV for 1 h followed at 4.75 kV for 1 h, determined according to IEC60587 (2007), method 2A, on compression molded plaques prepared according to ISO 11357 The present invention further relates to a track resistant wire or cable comprising at least one layer of the above polymer composition or to the use of the polymer composition in a wire or cable for increasing track resistance, fire retardancy and/or heat resistance. The present invention further relates to a method for manufacturing the above polymer composition.

    BLEND COMPRISING POLYETHYLENE BASED RECYCLATE
    6.
    发明申请
    BLEND COMPRISING POLYETHYLENE BASED RECYCLATE 有权

    公开(公告)号：US20230114045A1

    公开(公告)日：2023-04-13

    申请号：US17785264

    申请日：2020-12-10

    Applicant: Borealis AG

    Inventor： Yi Liu ,  Susanne Kahlen ,  Hermann Braun ,  Elisabeth Ribarits ,  Christian Goetzloff ,  Gerhard Hubner ,  Ruth Dammert ,  Sanna Ronkainen ,  Andreas Rössler-Czermak ,  Jari Äärilä

    IPC: C08L23/06

    Abstract: The present invention relates to a mixed-plastic-polyethylene composition comprising: —a total amount of ethylene units (C2 units) of from 90.00 to 99.00 wt %, and—a total amount of continuous units having 3 carbon atoms corresponding to polypropylene (continuous C3 units) of from 0.01 to 5.00 wt %, with the total amounts of C2 units and continuous C3 units being based on the total weight amount of monomer units in the composition and measured according to quantitative 13C{1H} NMR measurement, and wherein the composition has—a melt flow rate (ISO 1133, 2.16 kg, 190° C.) of from 0.1 to 2.0 g/10 min; and—a density of from 930 kg/m3 to 955 kg/m3, preferably from 932 to 953 kg/m3, a process for producing said mixed-plastic-polyethylene composition, an article comprising said mixed-plastic-polyethylene composition and the use of said mixed-plastic-polyethylene composition for producing a cable layer.

    POLYETHYLENE COMPOSITION FOR IMPROVING ADHESION TO POLYURETHANE RESINS
    7.
    发明申请
    POLYETHYLENE COMPOSITION FOR IMPROVING ADHESION TO POLYURETHANE RESINS 有权

    公开(公告)号：US20220162429A1

    公开(公告)日：2022-05-26

    申请号：US17441461

    申请日：2020-04-28

    Applicant: Borealis AG

    Inventor： Bernt-Ake Sultan ,  Jonas Junqvist ,  Elisabeth Ribarits

    IPC: C08L23/08 ,  H01B3/44

    Abstract: The present invention concerns a polyethylene composition comprising (A) an ethylene co-polymer containing monomer units with hydrolysable silane-groups, and (B) one or more ethylene co-polymers selected from the group of (B1) an ethylene co-polymer containing monomer units with hydroxyl groups, (B2) an ethylene co-polymer containing monomer units with (meth-)acrylate groups, and (B3) an ethylene co-polymer containing monomer units with hydroxyl groups and (meth-)acrylate groups, a cable comprising a layer (1) which comprises one or more ethylene copolymers selected from the group of (B1), (B2) and (B3) and to the use of one or more ethylene co-polymers selected from the group of (B1), (B2) and (B3) for improving the adhesion between a layer of a cable comprising the ethylene co-polymer(s) and a polyurethane resin.

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