Borealis Ag

Borealis Technology Oy

Degussa Aktiengesellschaft

Borealis A/s

Borealis Gmbh

Annika Smedberg

Ulf Nilsson

Villgot Englund

Per-Ola Hagstrand

Alfred Campus

Virginie Eriksson

Daniel Nilsson

Bill Gustafsson

Andreas Farkas

Claes Broman

Thomas Hjertberg

Carl-Olof Olsson

Johan Andersson

Perry Nylander

Bjorn Voigt

Marc Jeroense

Lena Lindbom

Anders Gustafsson

Gustavo Dominguez

Sune Larsson

Jan-Ove Boström

Mats Göransson

James Stadelman

Emil Hjärtfors

Ola Fagrell

Roger Carlsson

Ruth Dammert

Peter Carstensen

Thomas Steffl

Fredrik Skogman

Birgitta Källstrand

Jan-Ove Bostrom

Bernt-Ake Sultan

Mattias Bergqvist

John Jamieson

Thomas Gkourmpis

Johannes Wolfschwenger

Jari Aarila

Christian Müller

Hans Eklind

Udo Jegelka

Christer Svanberg

Takashi Uematsu

Karl-Michael Jäger

Antonios Gitsas

Mattias Andersson

Arja Lehtinen

Bernt-Åke Sultan

Antonis Gitsas

Nigel Hampton

Richard Handwerk

Jan-Ove Bostroem

Achim Blok

Liu Rongsheng

Detlef Wald

Anders Ericsson

Niklas Thorn

Jochen Kirchhoff

Kenneth Johansson

Emy Silfverberg

Peter Sunnegårdh

Jonas Jungqvist

Paul Laurenson

Björn Voigt

Philippe Ravera

Gustaf Åkermark

Erik Perzon

Siegfried Wegener

Rudi Peters

Lieve Michiels

Virginie Erikson

Jan-Ove Bosstrom

Ulf Nillson

Wilfried Kalkner

Marc Brüggemann

Johan Linner

Jan-Ove Bostr&ouml;m

Pär Lilja

Susanne Nilsson

Jonny Brun

Susanne M Nilsson

Karl Nielsen

Markus Huber

Hermann Schild

Torbjorn Magnusson

Marcus Kierkegaard

Karl-Michael Jaeger

Marc Brueggemann

The invention relates to a polyethylene which contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B≤B, wherein Bis 0.30; and has a complex viscosity (η*) at 0.05 rad/sec, which is X Pas, and X≤X≤X, wherein Xis 10000 and Xis 30000; and has a complex viscosity (η*) at 300 rad/sec, which is Y Pas, and Y≤Y≤Y, wherein Yis 5 and Yis 350, both complex viscosities (η*) are determined according to method ISO 6721-1 on stabilised samples of the polyethylene, 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.

Polyethylene with a high vinyl content and beneficial rheological properties

The invention provides a semiconductive polymer composition comprising (a) a base polymer of ethylene vinyl acetate copolymer, (b) at least 25 wt % carbon black; and (c) at least 1 wt % of an ethylene vinyl acetate wax.

Semiconductive polymer composition

The invention relates to a semiconductive polymer composition comprising a polymer component, a conducting component and a crosslinking agent, wherein the polymer component comprises a polar polyethylene and the crosslinking agent comprises an aliphatic mono- or bifunctional peroxide or, alternatively, a monofunctional peroxide containing an aromatic group, and the crosslinking agent is present in an amount which is Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z≤Z≤Z, wherein Zis 0.01 and Zis 5.0, an article being e.g. a cable, e.g. a power cable, and processes for producing a semiconductive polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.

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.

Power cable polymer composition comprising thermoplastic and having advantageous properties

A crosslinkable and crosslinked polymer composition containing a low density polyethylene (LDPE) homopolymer or low density polyethylene (LDPE) copolymer has excellent direct current (DC) electrical properties. The crosslinked polymer composition has an electrical conductivity of 150 fS/m or less, when measured at 70&#xb0; C. and a 30 kV/mm mean electric field from a non-degassed, 1 mm thick plaque sample of the crosslinked polymer composition when measured according to a direct current (DC) conductivity method. A cable can be surrounded by at least one layer of the polymer composition.

Polymer composition and a power cable comprising the polymer composition

The invention relates to a polymer composition comprising a polyethylene and a crosslinking agent, characterized in that the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B&#x2264;B, wherein Bis 0.88, when measured prior to crosslinking according to method ASTM D6248-98; and in that the crosslinking agent is present in an amount which is Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z&#x2264;Z, wherein Zis 0.30, an article being e.g. a cable, e.g. a power cable, and processes for producing a polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.

Crosslinkable composition without antioxidant and beneficial methane formation with reduced crosslinking

The invention relates to a polymer composition comprising 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 B&#x2264;B, wherein Bis 0.88, when measured prior to crosslinking according to method ASTM D624898; and wherein the crosslinking agent is present in an amount which Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z&#x2264;Z, wherein Zis 0.60, an article being e.g. a cable, e.g. a power cable, and processes for producing a polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.

Polymer composition comprising a polyethylene

The invention relates to a cable comprising layer(s), which layer(s) is/are obtained from a polymer composition comprising a polyethylene, a crosslinking agent and antioxidant(s), characterized in that the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B&#x2264;B, wherein Bis 0.12, when measured prior to crosslinking according to method ASTM D6248-98, 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&#x2264;Z&#x2264;Z, wherein Zis 0.005 and Zis 2.0, and that the antioxidant(s) is/are nitrogen containing antioxidant(s) being present in an amount which is W wt %, prior to crosslinking, based on the total amount (100 wt %) of the polymer composition, and W&#x2264;W&#x2264;W, wherein Wis 0.005 and Wis 1.0, the cable, e.g. a power cable, and processes for producing the cable; the cable useful in different end applications, such as wire and cable (W&C) applications.

Cable made from crosslinkable composition with antioxidant and beneficial methane formation

The invention relates to a polymer composition comprising a polyethylene, a crosslinking agent and antioxidant(s), wherein the polymer composition contains a total amount of vinyl groups which is B vinyl groups per 1000 carbon atoms, and B&#x2264;B, wherein Bis 0.12, when measured prior to crosslinking according to method ASTM D6248-98, the crosslinking agent is present in an amount which is Z wt %, based on the total amount (100 wt %) of the polymer composition, and Z&#x2264;Z&#x2264;Z, wherein Zis 0.005 and Zis 2.0, and the antioxidant(s) is/are nitrogen containing antioxidant(s) being present in an amount which is W wt %, based on the total amount (100 wt %) of the polymer composition, and W&#x2264;W&#x2264;W, wherein Wis 0.005 and Wis 1.0, an article being e.g. a cable, e.g. a power cable, and processes for producing a polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.

Crosslinkable composition with antioxidant and methane formation and article

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 B&#x2264;B, wherein Bis 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&#x2264;Z, wherein Zis 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.

Cable made from crosslinkable composition without antioxidant and with beneficial methane formation

A polymer composition includes a crosslinked polyolefin with improved DC electrical properties. Prior to crosslinking, the polymer composition includes a polyolefin and peroxide, in which the peroxide is in an amount of less than 35 mmol &#x2014;O&#x2014;O&#x2014; per kilogram of the polymer composition. A cable can be surrounded by at least one layer including the polymer composition.

Crosslinkable polymer composition and cable with advantageous electrical properties

The invention relates to polymer composition comprising a polyolefin (a) and an inorganic filler (b) wherein the polyolefin (a) is obtainable by a high pressure process which process comprises the steps: (i) compressing one or more monomer(s) under pressure in a compressor, using a compressor lubricant for lubrication, (ii) polymerising a monomer optionally together with one or more comonomer(s) in a polymerisation zone, (iii) separating the obtained polyolefin (a) from the unreacted products and recovering the separated polyolefin (a) in a recovery zone, wherein in step (i) the compressor lubricant comprises a non-mineral oil, power cable, for example a direct current (DC) power cable, use of a polymer composition and a process for producing a DC power cable.

Polymer composition and cable with advantageous electrical properties

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) 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.

Low MFR polymer composition, power cable insulation and power cable

The invention relates to a polyethylene having a melt flow rate at (2.16) kg loading (MFR), determined according to method ISO1133-1:2011, which MFRis A g/10 min and A&#x2264;A&#x2264;A; wherein Ais (0.5) and Ais (1.70), and containing a total amount of vinyl groups which is B vinyl groups per (1000) carbon atoms, and B&#x2264;B, wherein Bis (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.

Polyethylene with a high vinyl content and with a low MFR

A cross-linked polymer composition includes a cross-linked polyolefin. Peroxide in an amount of less than 35 mmol &#x2014;O&#x2014;O&#x2014;/kg polymer composition may be included in the polymer composition prior to crosslinking the polyolefin. Suitable polyolefins that can be cross-linked in the polymer composition include an unsaturated LDPE homopolymer and an unsaturated LDPE copolymer of ethylene with one or more comonomers. Such unsaturated LDPE polymer can contain vinyl groups, and the total amount of vinyl groups present in the unsaturated LDPE can be higher than 0.05/1000 carbon atoms. The cross-linked polymer composition can be used, for example, in producing a cross-linkable and cross-linked article such as a cross-linkable and cross-linked direct current (DC) or other type of power cable.

Growing community of inventors

Myggenas, Sweden

Annika Smedberg