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Patent Agency Ranking
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
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.
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公开(公告)号：US10889705B2
公开(公告)日：2021-01-12
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
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.
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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
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.
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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
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.
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公开(公告)号：US20190326033A1
公开(公告)日：2019-10-24
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
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 said insulation layer comprises at least 90 wt % of a polymer composition, said polymer composition comprising (I) 80.0 to 99.9 wt % of an LDPE homopolymer or copolymer; and (II) 0.1 to 20.0 wt % of: (i) an ultra-high molecular weight polyethylene having a Mw of at least 1,000,000; or (ii) 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.
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