公开(公告)号：US20190169414A1

公开(公告)日：2019-06-06

申请号：US16267599

申请日：2019-02-05

申请人： Borealis AG

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

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

摘要： 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

申请人： BOREALIS AG

发明人： Annika Smedberg ,  Villgot Englund ,  Per-Ola Hagstrand ,  Virginie Erikson ,  Emy Silfverberg

IPC分类号： C08F110/02 ,  C08K5/14 ,  C08F210/18 ,  H01B3/44 ,  H01B9/02

摘要： 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

申请人： BOREALIS AG

发明人： Per-Ola Hagstrand ,  Villgot Englund ,  Annika Smedberg

IPC分类号： H01B3/44 ,  C08K5/00 ,  C08K5/375 ,  C08K5/14

CPC分类号： H01B3/441 ,  C08K5/005 ,  C08K5/14 ,  C08K5/375 ,  C08L23/06

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 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.

摘要翻译： 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。