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.

公开(公告)号：US20190237213A1

公开(公告)日：2019-08-01

申请号：US16311497

申请日：2017-06-20

Applicant: BOREALIS AG

Inventor： Per-Ola Hagstrand ,  Villgot Englund ,  Thomas Gkourmpis ,  Mattias Andersson ,  Jonna Hynynen ,  Christian Müller

IPC: H01B3/44 ,  H01B13/14 ,  C08L23/06

CPC classification number: H01B3/441 ,  C08L23/06 ,  C08L23/08 ,  C08L23/083 ,  C08L2203/202 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/062 ,  C08L2207/066 ,  C08L2207/068 ,  H01B13/14 ,  C08L23/0815

Abstract: A cable comprising one or more conductors surrounded by at least an inner semiconductive layer, an insulation layer and an outer semiconductive layer, in that order, wherein the insulation layer is not crosslinked and comprises at least 90 wt % of a polymer composition, said polymer composition comprising: (I) 85.0 to 99.5 wt % of an LDPE; and (II) 0.5 to 15.0 wt % of an HDPE having a density of at least 940 kg/m3 or 1.5 to 15.0 wt % of an ultra-high molecular weight polyethylene having a Mw of at least 1,000,000.

公开(公告)号：US20190169414A1

公开(公告)日：2019-06-06

申请号：US16267599

申请日：2019-02-05

Applicant: Borealis AG

Inventor： Ulf Nilsson ,  Per-Ola Hagstrand ,  Villgot Englund ,  Andreas Farkas ,  Janis Ritums

IPC: C08L23/26 ,  H01L21/31 ,  C08L23/06 ,  H01B3/44 ,  H01B9/02

Abstract: The invention relates to a polymer composition with improved DC electrical properties, to the use of the composition for producing a cable layer and to a cable surrounded by at least one layer comprising the polymer composition.

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.

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。