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    Flame retardant polypropylene composition
    1.
    发明授权
    Flame retardant polypropylene composition 有权

    公开(公告)号：US10259935B2

    公开(公告)日：2019-04-16

    申请号：US15540582

    申请日：2016-01-13

    Applicant: Borealis AG

    Inventor： Linus Karlsson ,  Bernt-Ake Sultan ,  Fredrik Skogman ,  Joerg H. M. Ruder ,  Claus Beisert

    IPC: C08L23/12 ,  C08L23/16 ,  C08K3/22 ,  C09K21/02 ,  H01B7/295

    Abstract: The present invention relates to a flame retardant polypropylene composition for a conduit, appliance, and/or automotive wire, comprising a flame retardant composition comprising: a) a base resin comprising a heterophasic propylene copolymer which comprises a polypropylene homo- or copolymer matrix and an ethylene propylene rubber dispersed in said matrix, and b) a metal hydroxide or hydrated compound, wherein the heterophasic propylene copolymer has a MFR2 below 0.8 g/10 min and a xylene cold soluble (XCS) fraction content between 1 and 15 wt % based on the total weight of the heterophasic propylene copolymer.

    FLAME RETARDANT POLYMER COMPOSITIONS
    5.
    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.

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