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    Crosslinked polymer composition, structured layer and cable
    22.
    发明授权
    Crosslinked polymer composition, structured layer and cable 有权

    公开(公告)号：US10696762B2

    公开(公告)日：2020-06-30

    申请号：US15504903

    申请日：2015-08-19

    Applicant: BOREALIS AG

    Inventor： Annika Smedberg ,  Villgot Englund ,  Per-Ola Hagstrand ,  Virginie Erikson ,  Emy Silfverberg

    IPC: C08F110/02 ,  C08F210/18 ,  H01B3/44 ,  B32B1/08 ,  B32B27/32 ,  B32B27/08 ,  C08K5/14 ,  H01B9/02 ,  C08F2/02

    Abstract: The present invention relates to a crosslinked polymer composition comprising a crosslinked polyolefin, wherein the polymer composition comprises, prior to crosslinking, a polyolefin and peroxide which is in an amount of less than 35 mmol —O—O-/kg polymer composition, characterized in that the crosslinked polymer composition has been in a direct contact with a semiconductive composition for 24 h at 70° C., and that the crosslinked polymer composition thereafter has an electrical DC-conductivity of 150 fS/m or less, wherein the electrical DC-conductivity is measured in accordance with “DC conductivity method”, as described under “Determination methods”, on a plaque of the crosslinked polymer composition at 70° C. and 30 kV/mm mean electric field from a non-degassed and 1 mm thick plaque sample of the crosslinked polymer composition; a layered structure, cable, e.g. a power cable, use of the crosslinked polymer composition and the structured layer, both, for producing a crosslinked power cable, e.g., a cross linked direct current (DC) power cable; and a process for producing a cable.

    A NEW CROSSLINKED POLYMER COMPOSITION, STRUCTURED LAYER AND CABLE
    26.
    发明申请
    A NEW CROSSLINKED POLYMER COMPOSITION, STRUCTURED LAYER AND CABLE 审中-公开

    公开(公告)号：US20170233508A1

    公开(公告)日：2017-08-17

    申请号：US15504903

    申请日：2015-08-19

    Applicant: BOREALIS AG

    Inventor： Annika Smedberg ,  Villgot Englund ,  Per-Ola Hagstrand ,  Virginie Erikson ,  Emy Silfverberg

    IPC: C08F110/02 ,  C08K5/14 ,  C08F210/18 ,  H01B3/44 ,  H01B9/02

    Abstract: The present invention relates to a crosslinked polymer composition comprising a crosslinked polyolefin, wherein the polymer composition comprises, prior to crosslinking, a polyolefin and peroxide which is in an amount of less than 35 mmol —O—O-/kg polymer composition, characterized in that the crosslinked polymer composition has been in a direct contact with a semiconductive composition for 24 h at 70° C., and that the crosslinked polymer composition thereafter has an electrical DC-conductivity of 150 fS/m or less, wherein the electrical DC-conductivity is measured in accordance with “DC conductivity method”, as described under “Determination methods”, on a plaque of the crosslinked polymer composition at 70° C. and 30 kV/mm mean electric field from a non-degassed and 1 mm thick plaque sample of the crosslinked polymer composition; a layered structure, cable, e.g. a power cable, use of the crosslinked polymer composition and the structured layer, both, for producing a crosslinked power cable, e.g., a cross linked direct current (DC) power cable; and a process for producing a cable.

    A NEW CROSSLINKED LOW MFR POLYMER COMPOSITION, POWER CABLE INSULATION AND POWER CABLE
    27.
    发明申请
    A NEW CROSSLINKED LOW MFR POLYMER COMPOSITION, POWER CABLE INSULATION AND POWER CABLE 审中-公开
    新型交联低MFR聚合物组合物，电力电缆绝缘和电力电缆

    公开(公告)号：US20160314869A1

    公开(公告)日：2016-10-27

    申请号：US15105230

    申请日：2014-08-19

    Applicant: BOREALIS AG

    Inventor： Per-Ola Hagstrand ,  Villgot Englund ,  Annika Smedberg

    IPC: H01B3/44 ,  C08K5/00 ,  C08K5/375 ,  C08K5/14

    CPC classification number: H01B3/441 ,  C08K5/005 ,  C08K5/14 ,  C08K5/375 ,  C08L23/06

    Abstract: The present invention relates to a crosslinked polymer composition, which is obtained by crosslinking a polymer composition, which polymer composition has a melt flow rate (MFR) of less than 1.7 and comprises a polyolefm, peroxide and sulphur containing antioxidant, characterised by that the crosslinked polymer composition has an Oxidation Induction Time, determined according to ASTM-D3895, ISO/CD 11357 and EN 728 using a Differential Scanning Calorimeter (DSC), which Oxidation Induction Time corresponds to Z minutes, and comprises an amount of peroxide by-products which corresponds to W ppm determined according to BTM2222 using HPLC, wherein Z1≦Z≦Z2, W1≦W≦W2, and W≦p−270*Z, wherein Z1 is 0, Z2 is 60, W1 is 0 and W2 is 9500, and p is 18500; and use thereof, a power cable insulation and a power cable, useful in high voltage (HV) and extra high voltage (EHV) cable applications direct current (DC) applications.

    Abstract translation: 本发明涉及一种交联聚合物组合物，其通过交联聚合物组合物获得，该聚合物组合物的熔体流动速率（MFR）小于1.7，并且包含聚烯烃，过氧化物和含硫的抗氧化剂，其特征在于，交联的 聚合物组合物具有氧化诱导时间，其使用差示扫描量热计（DSC）根据ASTM-D3895，ISO / CD 11357和EN 728测定，氧化诱导时间对应于Z分钟，并且包含一定量的过氧化物副产物， 对应于根据BTM2222使用HPLC测定的W ppm，其中Z1≤Z≤Z2，W1≤W≤W2，W≤p-270×Z，其中Z1为0，Z2为60，W1为0，W2为9500， p为18500; 及其使用，电力电缆绝缘和电力电缆，可用于高压（HV）和超高压（EHV）电缆应用直流（DC）应用。

    POLYPROPYLENE COMPOSITION FOR CABLE INSULATION
    29.
    发明公开
    POLYPROPYLENE COMPOSITION FOR CABLE INSULATION 审中-公开

    公开(公告)号：US20240199865A1

    公开(公告)日：2024-06-20

    申请号：US18549717

    申请日：2022-03-23

    Applicant: BOREALIS AG

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

    IPC: C08L23/14 ,  C08K5/1575 ,  H01B3/44

    CPC classification number: C08L23/142 ,  C08K5/1575 ,  H01B3/441 ,  C08L2203/202 ,  C08L2205/025 ,  C08L2205/24 ,  C08L2207/02

    Abstract: The present invention relates to a polypropylene composition comprising (A) 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, and (B) an alpha-nucleating agent; 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 23.0 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 5.0 g/10 min, and a flexural modulus of not more than 470 MPa, 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.

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