公开(公告)号：US11555083B2

公开(公告)日：2023-01-17

申请号：US16770715

申请日：2018-12-18

Applicant: BOREALIS AG

Inventor： Villgot Englund ,  Virginie Eriksson ,  Daniel Nilsson ,  Annika Smedberg

IPC: C08F10/02 ,  B29C48/154 ,  B29C48/00 ,  B29C48/06 ,  H01B3/44 ,  H01B13/14 ,  B29K23/00 ,  B29L31/34 ,  H01B9/00

Abstract: The invention relates to a cable comprising layer(s), which layer(s), is/are obtained from a polymer composition, wherein the polymer composition comprises a polyethylene and a crosslinking agent, 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 0.88, when measured prior to crosslinking according to method ASTM D6248-98; and wherein 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 Z≤Z2, wherein Z2 is 0.60, the cable, e.g. being a power cable, and processes for producing the cable; the cable useful in different end applications, such as wire and cable (W&C) applications.

公开(公告)号：US11011287B2

公开(公告)日：2021-05-18

申请号：US15106011

申请日：2014-08-19

Applicant: BOREALIS AG

Inventor： Peter Sunnegårdh ,  Marc Jeroense ,  Anders Gustafsson ,  Pär Lilja ,  Per-Ola Hagstrand ,  Villgot Englund ,  Annika Smedberg ,  Ulf Nilsson ,  Johan Andersson ,  Virginie Eriksson ,  Jonas Jungqvist ,  Jonny Brun

IPC: H01B9/02 ,  H01B3/44 ,  H01B13/24

Abstract: A transmission cable includes a conductor or a bundle of conductors extending along a longitudinal axis, which is circumferentially covered by an insulation layer having an extruded insulation material, whereby the transmission cable passes the electrical type test as specified in Cigré TB496, whereby the rated voltage U0 is 450 kV or more. The type test includes subjecting the power cable to a DC voltage of 1.85*U0 during 10 to 15 cycles at negative polarity, followed by a polarity reversal with another 10 to 15 cycles at positive polarity at a DC voltage of 1.85*U0, followed by additional 2 to 5 cycles during at least 4 to 10 days at positive polarity, and wherein U0 is 450 kV, or 525 kV, or more.

公开(公告)号：US10679769B2

公开(公告)日：2020-06-09

申请号：US16312400

申请日：2017-06-20

Applicant: BOREALIS AG

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

IPC: H01B9/02 ,  H01B3/44 ,  C08L23/06 ,  C08L23/08 ,  H01B13/14

Abstract: A cable comprising a conductor 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 or is cross-linked and comprises at least 90 wt % of a polymer composition, said polymer composition comprising: (I) 95.5 to 99.9 wt % of an LDPE; and (II) 0.1 to 4.5 wt % of an HDPE having a density of at least 940 kg/m3.

公开(公告)号：US10679768B2

公开(公告)日：2020-06-09

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: H01B7/00 ,  H01B3/44 ,  C08L23/06 ,  C08L23/08 ,  H01B13/14

Abstract: A cable having 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 has at least 90 wt % of a polymer composition, said polymer composition having: (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：US10347390B2

公开(公告)日：2019-07-09

申请号：US15105226

申请日：2014-08-19

Applicant: BOREALIS AG

Inventor： Villgot Englund ,  Per-Ola Hagstrand ,  Annika Smedberg ,  Carl-Olof Olsson ,  Andreas Farkas

IPC: H01B3/44 ,  C08K5/00 ,  C08K5/14 ,  C08K5/36 ,  H01B7/02

Abstract: The present invention relates to a polymer composition comprising a polyolefin, peroxide and a sulphur containing antioxidant, wherein said peroxide is present in an amount which corresponds to X mmol —O—O—/kg polymer composition and said sulphur containing antioxidant is present in an amount which corresponds to Y mmol —OH/kg polymer composition, wherein Y1≤Y≤Y2, X≤45 and 0.9*Y+m≤X≤n−k*Y, wherein Y1 is 0.50 and Y2 is 10, and m is 0.8, n is 70 and k is 4.7; and wherein said polymer composition has a melt flow rate (MFR) which is at least 1.7, and said polymer composition comprises less than 0.05% by weight (wt %) 2,4-Diphenyl-4-methyl-1-pentene; a crosslinked polymer composition, and use thereof, a power cable insulation, a power cable, useful in high voltage (HV DC) and extra high voltage (EHV DC) direct current applications, and a method for reducing electrical conductivity of a crosslinked polymer composition.

公开(公告)号：US20190206588A1

公开(公告)日：2019-07-04

申请号：US16312400

申请日：2017-06-20

Applicant: BOREALIS AG

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

IPC: H01B3/44 ,  H01B9/02 ,  H01B13/14 ,  C08L23/06

Abstract: A cable comprising a conductor 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 or is cross-linked and comprises at least 90 wt % of a polymer composition, said polymer composition comprising: (I) 95.5 to 99.9 wt % of an LDPE; and (II) 0.1 to 4.5 wt % of an HDPE having a density of at least 940 kg/m3.

公开(公告)号：US11355260B2

公开(公告)日：2022-06-07

申请号：US15105235

申请日：2014-08-19

Applicant: BOREALIS AG

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

IPC: H01B3/44 ,  C08K5/14 ,  C08K5/375 ,  C08F255/02 ,  C08K5/01 ,  H01B9/00

Abstract: The present invention relates to a polymer composition comprising a polyolefin, peroxide and a sulphur containing antioxidant, wherein said peroxide is present in an amount which corresponds to X mmol —O—O—/kg polymer composition and said sulphur containing antioxidant is present in an amount which corresponds to Y mmol —OH/kg polymer composition, wherein Y1≤Y≤Y2, X≤45 and 0.9*Y+m≤X≤n−k*Y, wherein Y1 is 0.50 and Y2 is 10, and m is 0.8, n is 70 and k is 4.7; and wherein said polymer composition has a melt flow rate (MFR) of less than 1.7, and said polymer composition comprises less than 0.05% by weight (wt %) 2,4-Diphenyl-4-methyl-1-pentene; a crosslinked polymer composition, and use thereof, a power cable insulation, a power cable, useful in high voltage (HV DC) and extra high voltage (EHV DC) direct current applications, and a method for reducing electrical conductivity of a crosslinked polymer composition.

公开(公告)号：US10886034B2

公开(公告)日：2021-01-05

申请号：US16311494

申请日：2017-06-20

Applicant: BOREALIS AG

Inventor： Per-Ola Hagstrand ,  Villgot Englund ,  Johan Andersson ,  Virginie Eriksson ,  Annika Smedberg ,  Ulf Nilsson ,  Karl Nielsen ,  Thomas Gkourmpis ,  Antonios Gitsas ,  Mattias Andersson ,  Christian Müller

IPC: H01B9/00 ,  H01B3/44 ,  C08L23/06 ,  H01B9/02 ,  H01B13/14

Abstract: A cable having one or more conductors surrounded by at least an inner semiconductive layer, an insulation layer and an outer semiconductive layer, in that order. The insulation layer has at least 90 wt % of a polymer composition, said polymer composition having 80.0 to 99.9 wt % of an LDPE homopolymer or copolymer; and 0.1 to 20.0 wt % of: an ultra-high molecular weight polyethylene having a Mw of at least 1,000,000; or a single site catalysed medium density polyethylene (MDPE) having a density of 925 to 940 kg/m3 or a single site catalysed linear low density polyethylene (LLDPE) having a density of 910 to 925 kg/m3.

公开(公告)号：US20190136022A1

公开(公告)日：2019-05-09

申请号：US16096029

申请日：2017-03-30

Applicant: BOREALIS AG

Inventor： Mattias Bergqvist ,  Martina Sandholzer ,  Davide Domenico Tranchida ,  Johan Andersson ,  Villgot Englund ,  Thomas Hjertberg

IPC: C08L23/08 ,  C08F210/02 ,  C08K3/04 ,  C08K3/22 ,  C08K3/14 ,  C08K5/14 ,  H01B3/00 ,  H01B3/44

Abstract: A crosslinked polymer composition based on a plastomer, which is suitable for producing at least one layer of cable accessories like cable joints, bushings or terminations; its use for preparing such a layer and the cable accessory comprising the composition.

公开(公告)号：US11783960B2

公开(公告)日：2023-10-10

申请号：US17159792

申请日：2021-01-27

Applicant: Borealis AG

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

IPC: H01B9/00 ,  H01B3/44 ,  C08F210/16 ,  H01B9/02 ,  H01B13/14 ,  C08F4/659 ,  C08F4/6592

CPC classification number: H01B3/441 ,  C08F210/16 ,  H01B9/027 ,  H01B13/141 ,  H01B13/148 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F2410/02 ,  C08F210/16 ,  C08F4/6492 ,  C08F210/16 ,  C08F4/69 ,  C08F210/16 ,  C08F210/08 ,  C08F2500/07 ,  C08F2500/12 ,  C08F210/16 ,  C08F210/14 ,  C08F2500/07 ,  C08F2500/12

Abstract: The invention relates to power cable polymer composition which comprises a thermoplastic polyethylene having a chlorine content which is less than X, wherein X is 10 ppm, a power cable, for example, a high voltage direct current (HV DC), a power cable polymer insulation, use of a polymer composition for producing a layer of a power cable, and a process for producing a power cable.