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公开(公告)号：US20240002647A1
公开(公告)日：2024-01-04
申请号：US18039023
申请日：2021-11-29
申请人： Borealis AG
发明人： Thomas Gkourmpis , Katja Ellen Klimke , Per-Ola Hagstrand , Ulf Nilsson , Lars Efraimsson , Anette Johansson
CPC分类号： C08L23/142 , C08K3/04 , H01B3/441 , C08L2203/202 , C08L2207/02 , C08L2308/00 , C08L2314/02
摘要： The present invention relates to a semiconductive composition comprising (A) at least 52.0 wt %, preferably from 55.0 to 90.0 wt %, more preferably from 60.0 to 85.0 wt %, most preferably from 65.0 to 80.0 wt % of a heterophasic propylene copolymer having a matrix phase and an elastomeric phase dispersed in said matrix phase, based on the total weight amount of the semiconductive composition; and (B) from 5.0 to 40.0 wt %, preferably from 10.0 to 38.0 wt %, more preferably from 15.0 to 35.0 wt %, most preferably from 20.0 to 33.0 wt % of carbon black based on the total weight amount of the semiconductive composition, an article comprising said semiconductive composition, preferably a cable comprising an semiconductive layer comprising said semiconductive composition and the use of said semiconductive composition as inner and/or outer semiconductive layer for medium and high voltage cables.
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公开(公告)号：US11011287B2
公开(公告)日：2021-05-18
申请号：US15106011
申请日：2014-08-19
申请人： BOREALIS AG
发明人： 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
摘要： 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：US10679769B2
公开(公告)日：2020-06-09
申请号：US16312400
申请日：2017-06-20
申请人： BOREALIS AG
发明人： Per-Ola Hagstrand , Thomas Gkourmpis , Antonios Gitsas , Villgot Englund , Ulf Nilsson , Mattias Andersson , Jonna Hynynen , Christian Müller
摘要： 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.
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公开(公告)号：US10679768B2
公开(公告)日：2020-06-09
申请号：US16311497
申请日：2017-06-20
申请人： BOREALIS AG
发明人： Per-Ola Hagstrand , Villgot Englund , Thomas Gkourmpis , Mattias Andersson , Jonna Hynynen , Christian Müller
摘要： 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.
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公开(公告)号：US10347390B2
公开(公告)日：2019-07-09
申请号：US15105226
申请日：2014-08-19
申请人： BOREALIS AG
摘要： 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.
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公开(公告)号：US20190206588A1
公开(公告)日：2019-07-04
申请号：US16312400
申请日：2017-06-20
申请人： BOREALIS AG
发明人： Per-Ola Hagstrand , Thomas Gkourmpis , Antonios Gitsas , Villgot Englund , Ulf Nilsson , Mattias Andersson , Jonna Hynynen , Christian Müller
摘要： 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.
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公开(公告)号：US11286315B2
公开(公告)日：2022-03-29
申请号：US16770719
申请日：2018-12-18
申请人： BOREALIS AG
发明人： Annika Smedberg , Emil Hjärtfors , Villgot Englund , Per-Ola Hagstrand , Bernt-Åke Sultan , Thomas Hjertberg
IPC分类号： C08F10/02
摘要： The invention relates to a polyethylene having a melt flow rate at (2.16) kg loading (MFR2), determined according to method ISO1133-1:2011, which MFR2 is A g/10 min and A1≤A≤A2; wherein A1 is (0.5) and A2 is (1.70), and containing a total amount of vinyl groups which is B vinyl groups per (1000) carbon atoms, and B1≤B, wherein B1 is (0.45), determined according to method ASTM D6248-98, a polymer composition, an article being e.g. a cable, e.g. a power cable, and processes for producing a polyethylene, a polymer composition and an article, and an article; useful in different end applications, such as wire and cable (W&C) applications.
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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
申请人： BOREALIS AG
发明人： Per-Ola Hagstrand , Villgot Englund , Johan Andersson , Virginie Eriksson , Annika Smedberg , Ulf Nilsson , Karl Nielsen , Thomas Gkourmpis , Antonios Gitsas , Mattias Andersson , Christian Müller
摘要： 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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公开(公告)号：US10221300B2
公开(公告)日：2019-03-05
申请号：US15105238
申请日：2014-08-19
申请人： BOREALIS AG
摘要： 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 at least 1.7 and comprises a polyolefin, peroxide and sulphur containing antioxidant, characterized 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.
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公开(公告)号：US20140124238A1
公开(公告)日：2014-05-08
申请号：US14115113
申请日：2012-05-03
申请人： BOREALIS AG
发明人： Villgot Englund , Per-Ola Hagstrand
IPC分类号： H01B3/30
摘要： The present invention relates to a use of a polymer composition preferably in electrical devices as well as to a cable surrounded by at least one layer including the polymer composition.
摘要翻译： 本发明涉及聚合物组合物在电气装置中的用途以及由包括聚合物组合物的至少一层包围的电缆的用途。
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