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    POLYMER FOR POWER CABLE INSULATION
    2.
    发明申请
    POLYMER FOR POWER CABLE INSULATION 审中-公开

    公开(公告)号：WO2021234042A1

    公开(公告)日：2021-11-25

    申请号：PCT/EP2021/063370

    申请日：2021-05-19

    Applicant: BOREALIS AG

    Inventor： HJÄRTFORS, Anna ,  HAGSTRAND, Per-Ola ,  ENGLUND, Villgot ,  KELA, Jarmo

    IPC: C08L23/08 ,  C08F210/02 ,  H01B3/44 ,  C08F210/16

    Abstract: A multimodal polyethylene composition having a lower molecular weight (LMW) ethylene homo or copolymer component (A) and a higher molecular weight ethylene copolymer component (B); wherein the lower molecular weight component comprises: (ai) a first fraction which comprises an ethylene homo or copolymer of ethylene and one or more C3-10 alpha olefins; and (aii) a second fraction which comprises a different ethylene homo or copolymer of ethylene and one or more C3-10 alpha olefins; wherein the multimodal polymer composition has a density of 930kg/m3 or more (ISO1183), such as 938 to 955 kg/m3, an MFR2 (ISO1133 at 190ºC and 2.16 kg load) in the range of 0.05 to 10 g/10min, and a flexural modulus of up to 800 MPa, such as 300 to 800 MPa (ISO 178:2010).

    POLYMER FOR CABLE JACKET
    3.
    发明申请
    POLYMER FOR CABLE JACKET 审中-公开

    公开(公告)号：WO2021234040A1

    公开(公告)日：2021-11-25

    申请号：PCT/EP2021/063367

    申请日：2021-05-19

    Applicant: BOREALIS AG

    Inventor： HJÄRTFORS, Anna ,  JAMIESON, John ,  TUPE, Ravindra ,  LESKINEN, Pauli

    IPC: C08L23/08 ,  C08F210/02 ,  H01B3/44 ,  C08F210/16

    Abstract: A multimodal polyethylene composition having a lower molecular weight (LMW) ethylene homo or copolymer component (A) and a higher molecular weight ethylene copolymer component (B); wherein the LMW component comprises two fractions (ai) and (aii); wherein the polymer composition has a density of 930 kg/m3 or more (ISO1183), such as 938 to 955 kg/m3, an MFR2 (ISO1133 at 190ºC and 2.16 kg load) in the range of 0.05 to 10 g/10min, a flex modulus of up to 800 MPa (ISO 178:2010), such as 300 to 800 MPa (ISO 178:2010) and a taber abrasion resistance of 8.0 to 13.0 mg/1000 cycle (ASTM D 4060: 2014).

    FOAMABLE POLYOLEFIN COMPOSITION PROVIDING INCREASED FLEXIBILITY
    5.
    发明申请
    FOAMABLE POLYOLEFIN COMPOSITION PROVIDING INCREASED FLEXIBILITY 审中-公开

    公开(公告)号：WO2020178381A1

    公开(公告)日：2020-09-10

    申请号：PCT/EP2020/055825

    申请日：2020-03-05

    Applicant: BOREALIS AG

    Inventor： HJÄRTFORS, Anna ,  WANNERSKOG, Åsa ,  ANKER, Martin ,  EFRAIMSSON, Lars ,  NILSSON, Anette

    IPC: C08J9/00 ,  C08K5/092 ,  C08K5/098 ,  C08K5/11 ,  C08K7/22 ,  H01B3/44 ,  H01B13/14 ,  C08J9/16

    Abstract: The invention relates to a foamable polymer composition comprising a polyolefin polymer which polyolefin polymer does not bear silane moieties and comprises 20 to 99.99 wt.% linear low density polyethylene, and a blowing agent in an amount of 0.01 to 3 wt.% based on the total foamable polymer composition, wherein the blowing agent consists of citric acid and/or derivatives of citric acid or mixtures thereof. Further the invention relates to a foamable polymer composition comprising a polyolefin polymer, and a blowing agent in an amount of 0.01 to 3 wt.% based on the total foamable polymer composition, wherein the blowing agent consists of expandable polymeric microspheres, and the composition does not comprise fluororesin. Further the invention relates to a foamed polymer composition obtained by foaming this foamable polymer composition. Further the invention relates to the use of the foamable composition or the foamed polymer composition for a layer of a cable and a cable comprising at least one layer which comprises the foamable polymer composition or the foamed polymer composition.

    CABLE JACKET COMPOSITION
    7.
    发明申请
    CABLE JACKET COMPOSITION 审中-公开

    公开(公告)号：WO2018185274A1

    公开(公告)日：2018-10-11

    申请号：PCT/EP2018/058842

    申请日：2018-04-06

    Applicant: BOREALIS AG

    Inventor： HJÄRTFORS, Anna ,  LIU, Yi ,  SUMERIN, Victor ,  THORMAN, Joseph

    IPC: H01B3/44 ,  C08F210/02 ,  C08F2/00 ,  C08L23/06 ,  C08L23/08 ,  G02B6/44

    Abstract: The present invention relates to a cable jacket composition comprising a multimodal olefin copolymer, wherein said olefin copolymer has a density of 0.935-0.960 g/cm3 and MFR2 of 1.5-10.0 g/10 min and comprises a bimodal polymer mixture of a low molecular weight homo- or copolymer and a high molecular weight copolymer wherein the composition has ESCR of at least 2000 hours and wherein the numerical values of cable wear index and composition MFR2 (g/10 min) follow the correlation: Wear index

    CABLE JACKET COMPOSITION
    8.
    发明申请
    CABLE JACKET COMPOSITION 审中-公开

    公开(公告)号：WO2018185273A1

    公开(公告)日：2018-10-11

    申请号：PCT/EP2018/058836

    申请日：2018-04-06

    Applicant: BOREALIS AG

    Inventor： HJÄRTFORS, Anna ,  LIU, Yi ,  THORMAN, Joseph ,  SUMERIN, Victor

    IPC: H01B3/44 ,  C08L23/06 ,  C08L23/08 ,  G02B6/44 ,  C08F210/02 ,  C08F2/00

    Abstract: The present invention relates to a cable jacket composition comprising a multimodal olefin copolymer, said copolymer having density of 0,935-0,960 g/cm 3 and MFR 2 of 2.2-10.0 g/10 min and said composition having ESCR of at least 2000 hours and a cable shrinkage of 0.70% or lower. The invention further relates to the process for preparing said composition and its use as outer jacket layer for a cable, preferably a communication cable, most preferably a fiber optic cable.

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