Borealis Ag

Borealis Technology Oy

Abb Schweiz Ag

Nkt Hv Cables Ab

Nkt Hv Cables Gmbh

Andreas Farkas

Ulf Nilsson

Annika Smedberg

Per-Ola Hagstrand

Villgot Englund

Ola Fagrell

Roger Carlsson

Alfred Campus

Carl-Olof Olsson

Andreas Tyrberg

Peter Carstensen

Lena Lindbom

Claes Broman

Anders Gustafsson

Gustavo Dominguez

Jan-Ove Boström

Janis Ritums

Anders Ericsson

Andrej Krivda

Johan Andersson

Cherif Ghoul

Hossein Ghorbani

Jan-Ove Bostrom

Tomas Ahlberg

Chau-Hon Ho

Lei Xie

Andreas Friberg

Anneli Jedenmalm

Johan Anderson

The invention relates to a use of a polymer composition with improved DC electrical properties in a power cable layer and to a cable surrounded by at least one layer comprising the polymer composition.

Polymer composition for W and C application with advantageous electrical properties

The present invention relates to a polymer composition suitable for the manufacture of an electrical insulation layer for cables having superior mechanical and electrical properties and being environmentally friendly, to a cable comprising said polymer composition as well as to the use of the polymer composition as an electrical insulation layer in cables.

Thermoplastic blend formulations for cable insulations

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.

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 &#x2014;O&#x2014;O&#x2014;/kg polymer composition and said sulphur containing antioxidant is present in an amount which corresponds to Y mmol &#x2014;OH/kg polymer composition, wherein Y&#x2264;Y&#x2264;Y, X&#x2264;45 and 0.9*Y+m&#x2264;X&#x2264;n&#x2212;k*Y, wherein Yis 0.50 and Yis 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.

Polymer composition, power cable insulation and power cable

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 Z&#x2264;Z&#x2264;Z, W&#x2264;W&#x2264;W, and W&#x2264;p&#x2212;270*Z, wherein Zis 0, Zis 60, Wis 0 and Wis 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.

Crosslinked polymer composition, power cable insulation and power cable

A method for determining conductivity of cable insulation of a cable including at least one conductor that determines the central axis of the cable and insulation layer surrounding the conductor longitudinally and radially includes steps of retrieving a cable sample from a cable, which sample includes a length of at least one insulation layer and preparing an insulation sample from the cable sample. The insulation sample is prepared from cable sample by cutting a circular layer having a set thickness at desired radius from the central axis of the cable.

Method for determining an electrical property of cable insulation

The invention relates to a semiconductive polymer composition for use in power cables. The composition comprises a multimodal ethylene homo- or copolymer produced in a polymerization process comprising a single site catalyst whereby the polymer composition has a density of 870 to 930 kg/m3, a MFR2 of 1 to 30 g/10 min and a Mw/Mn of less than or equal to 10.

Semiconductive polymer composition

A semiconductive polymer composition for use in power cables, wherein the composition has a multimodal ethylene homo- or copolymer produced in a polymerization process having a single site catalyst whereby the polymer composition has a density of 870-930 kg/m, a MFRof 1 to 30 g/10 min and a Mw/Mn of less than or equal to 10.

Growing community of inventors

Stenungsund, Sweden

Andreas Farkas