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    POLYMER COMPOSITION AND CABLE WITH ADVANTAGEOUS ELECTRICAL PROPERTIES
    3.
    发明申请
    POLYMER COMPOSITION AND CABLE WITH ADVANTAGEOUS ELECTRICAL PROPERTIES 审中-公开

    公开(公告)号：US20170327674A1

    公开(公告)日：2017-11-16

    申请号：US15522721

    申请日：2015-10-27

    Applicant: BOREALIS AG

    Inventor： Villgot ENGLUND ,  Per-Ola HAGSTRAND ,  Annika SMEDBERG ,  Ulf NILSSON

    IPC: C08L23/06 ,  C08L23/08 ,  C08K5/14 ,  C08K3/00 ,  H01B3/44 ,  C08L71/02

    Abstract: The invention relates to a polymer composition comprising polyolefin (a), which is other than low density polyethylene (LDPE), and polyolefin (b), which is an LDPE polymer and obtainable by a high pressure process which process comprises the steps: (i) compressing one or more monomer(s) under pressure in a compressor, using a compressor lubricant for lubrication, (ii) polymerising a monomer optionally together with one or more comonomer(s) in a polymerisation zone, (iii) separating the obtained polyolefin (b) from the unreacted products and recovering the separated polyolefin in a recovery zone, wherein in step (i) the compressor lubricant comprises a non-mineral oil; a power cable, e.g. of a direct current (DC) power cable, use of a polymer composition and a process for producing a DC power cable.

    CROSSLINKABLE COMPOSITION WITH ANTIOXIDANT AND METHANE FORMATION AND ARTICLE
    6.
    发明申请
    CROSSLINKABLE COMPOSITION WITH ANTIOXIDANT AND METHANE FORMATION AND ARTICLE 有权

    公开(公告)号：US20210087358A1

    公开(公告)日：2021-03-25

    申请号：US16771304

    申请日：2018-12-18

    Applicant: BOREALIS AG

    Inventor： Villgot ENGLUND ,  Virginie ERIKSSON ,  Daniel NILSSON ,  Annika SMEDBERG

    IPC: C08K5/3435 ,  C08K5/14 ,  H01B3/44 ,  H01B13/14 ,  H01B7/02

    Abstract: The invention relates to a polymer composition comprising a polyethylene, a crosslinking agent and antioxidant(s), wherein the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B1≤B, wherein B1 is 0.12, when measured prior to crosslinking according to method ASTM D6248-98, the crosslinking agent is present in an amount which is Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z1≤Z≤Z2, wherein Z1 is 0.005 and Z2 is 2.0, and the antioxidant(s) is/are nitrogen containing antioxidant(s) being present in an amount which is W wt %, based on the total amount (100 wt %) of the polymer composition, and W1≤W≤W2, wherein W1 is 0.005 and W2 is 1.0, an article being e.g. a cable, e.g. a power cable, and processes for producing a polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.

    POLYMER COMPOSITION AND A POWER CABLE COMPRISING THE POLYMER COMPOSITION
    7.
    发明申请
    POLYMER COMPOSITION AND A POWER CABLE COMPRISING THE POLYMER COMPOSITION 审中-公开

    公开(公告)号：US20200161019A1

    公开(公告)日：2020-05-21

    申请号：US16659511

    申请日：2019-10-21

    Applicant: Borealis AG

    Inventor： Ulf NILSSON ,  Annika SMEDBERG ,  Alfred CAMPUS

    IPC: H01B3/44 ,  H01B7/295 ,  H01B3/20 ,  C08K5/00 ,  C08F10/02

    Abstract: A crosslinkable and crosslinked polymer composition containing a low density polyethylene (LDPE) homopolymer or low density polyethylene (LDPE) copolymer has excellent direct current (DC) electrical properties. The crosslinked polymer composition has an electrical conductivity of 150 fS/m or less, when measured at 70° C. and a 30 kV/mm mean electric field from a non-degassed, 1 mm thick plaque sample of the crosslinked polymer composition when measured according to a direct current (DC) conductivity method. A cable can be surrounded by at least one layer of the polymer composition.

    CABLE
    8.
    发明公开
    CABLE 审中-公开

    公开(公告)号：US20230368939A1

    公开(公告)日：2023-11-16

    申请号：US18030188

    申请日：2021-10-06

    Applicant: BOREALIS AG

    Inventor： Ulf NILSSON ,  Francisco GALANTE ,  Aydar SAITGALEEV ,  Annika SMEDBERG

    IPC: H01B7/14 ,  H01B3/44

    CPC classification number: H01B7/14 ,  H01B3/441 ,  H01B3/447

    Abstract: Use of a cable, e.g. to carry power, in a salt water environment, e.g. in the sea or under the sea; said cable comprising a conductor which is surrounded by at least an inner semiconductive layer, an insulation layer and an outer semi conductive layer in that order; wherein said insulation layer comprises (i) at least 60 wt % of a low density polyethylene homo or low density polyethylene copolymer with at least one polyunsaturated comonomer and optionally one or more further comonomers; and, (ii) 10 to 35 wt % of a low density polyethylene copolymer of ethylene and at least one polar comonomer selected from the group consisting of an alkyl acrylate, an alkyl methacrylate or vinyl acetate.

    A POLYETHYLENE WITH A HIGH VINYL CONTENT AND BENEFICIAL RHEOLOGICAL PROPERTIES
    9.
    发明申请
    A POLYETHYLENE WITH A HIGH VINYL CONTENT AND BENEFICIAL RHEOLOGICAL PROPERTIES 有权

    公开(公告)号：US20210163644A1

    公开(公告)日：2021-06-03

    申请号：US16770707

    申请日：2018-12-18

    Applicant: BOREALIS AG

    Inventor： Annika SMEDBERG ,  Villgot ENGLUND ,  Emil HJÄRTFORS

    IPC: C08F210/18 ,  C08L23/06 ,  H01B3/44

    Abstract: The invention relates to a polyethylene which contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B1≤B, wherein B1 is 0.30; and has a complex viscosity (η*) at 0.05 rad/sec, which is X Pas, and X1≤X≤X2, wherein X1 is 10000 and X2 is 30000; and has a complex viscosity (η*) at 300 rad/sec, which is Y Pas, and Y1≤Y≤Y2, wherein Y1 is 5 and Y2 is 350, both complex viscosities (η*) are determined according to method ISO 6721-1 on stabilised samples of the polyethylene, a polymer composition, an article being e.g. a cable, e.g. a power cable, and processes for producing a polyethylene, a polymer composition and an article, and an article; useful in different end applications, such as wire and cable (W&C) applications.

    CABLE MADE FROM CROSSLINKABLE COMPOSITION WITH ANTIOXIDANT AND BENEFICIAL METHANE FORMATION
    10.
    发明申请
    CABLE MADE FROM CROSSLINKABLE COMPOSITION WITH ANTIOXIDANT AND BENEFICIAL METHANE FORMATION 有权

    公开(公告)号：US20210087359A1

    公开(公告)日：2021-03-25

    申请号：US16771300

    申请日：2018-12-18

    Applicant: BOREALIS AG

    Inventor： Villgot ENGLUND ,  Virginie ERIKSSON ,  Daniel NILSSON ,  Annika SMEDBERG

    IPC: C08K5/3437 ,  C08F210/02 ,  H01B3/44 ,  H01B13/14 ,  B29C48/00 ,  B29C48/06 ,  B29C48/154

    Abstract: The invention relates to a cable comprising layer(s), which layer(s) is/are obtained from a polymer composition comprising a polyethylene, a crosslinking agent and antioxidant(s), characterized in that the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B1≤B, wherein B1 is 0.12, when measured prior to crosslinking according to method ASTM D6248-98, the crosslinking agent is present in an amount which is Z wt %, prior to crosslinking, based on the total amount (100 wt %) of the polymer composition, and Z1≤Z≤Z2, wherein Z1 is 0.005 and Z2 is 2.0, and that the antioxidant(s) is/are nitrogen containing antioxidant(s) being present in an amount which is W wt %, prior to crosslinking, based on the total amount (100 wt %) of the polymer composition, and W1≤W≤W2, wherein W1 is 0.005 and W2 is 1.0, the cable, e.g. a power cable, and processes for producing the cable; the cable useful in different end applications, such as wire and cable (W&C) applications.

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