Borealis Ag

Borealis Technology Oy

Borealis A/s

Ola Fagrell

Roger Carlsson

Ulf Nilsson

Bill Gustafsson

Perry Nylander

Kristian Dahlen

Annika Smedberg

Bernt-Ake Sultan

Martin Anker

Thomas Hjertberg

Alfred Campus

Oscar Prieto

Karl-Michael Jäger

Ann Watson

Claes Broman

Anders Gustafsson

Carl-Gustaf Ek

Mattias Bergqvist

Thomas Gkourmpis

John Jamieson

Andreas Farkas

Peter Carstensen

Lena Lindbom

Ulf Torgersen

Denis Yalalov

Stefan Hellstrom

Ruth Dammert

Kjell Fossum

Åsa Wannerskog

Hans Eklind

Takashi Uematsu

Christer Svanberg

Bart Verheule

Bernt-Åke Sultan

Mattias Gothe

Anders Ericsson

Dominic Kung

Eric Marsden

Jan-Ove Bostrom

Christian Piel

Jan-Ove Boström

Asa Wannerskog

Linus Karlsson

Asa Linder

Paul Laurenson

Peter Walter

Gustav Kermark

Bernt-ANGke Sultan

Peter Rydin

Thierry Toullec

Francisco Galante

Lars Isaksson

Björn Voigt

Oskar Prieto

Bernt-Äke Sultan

ÅSa Linder

Patrik Alnegren

Kristian DAHLÉN

Thomas Steffl

Jenny-Ann ÖStlund

Bernt-ÅKe Sultan

ÅSa Hermansson

Stefan HELLSTRÖM

Jan Roger Karlsson

ÅSa Wannerskog

The present invention relates to a cable jacket comprising a random heterophasic propylene copolymer, the random heterophasic polypropylene copolymer comprising a matrix (M) being a random propylene copolymer (R-PP) and dispersed therein an elastomeric propylene copolymer (E), wherein the random propylene copolymer (R-PP) comprises a first propylene copolymer fraction (R-PP1) having a comonomer content in the range of 0.8 to 6.0 mol % and a second propylene copolymer fraction (R-PP2) having a comonomer content in the range of 7.2 to 20.0 mol %, based on the overall amount of fractions (R-PP1) and (R-PP2), and wherein the random heterophasic propylene copolymer has MFR2 (230&#xb0; C.) measured according to ISO 1133 in the range of 0.5 to 15 g/10 min, and Charpy impact strength measured according to ISO 179-1/1eA at &#x2212;20&#xb0; C. in the range of 5 to 20 kJ/m. The present invention further relates to a power cable comprising the cable jacket.

Cable jacket

The present invention relates to a cable jacket comprising a random heterophasic propylene copolymer, wherein said copolymer comprises a matrix (M) being a random propylene copolymer (R-PP) and dispersed therein an elastomeric propylene copolymer (E), wherein the random propylene copolymer (R-PP) has a melt flow rate MFR2 (230&#xb0; C./2.16 kg) of 0.1 to 10.0 g/10 min and wherein the elastomeric propylene copolymer (E) has a comonomer content in the range of 40.0 to 55.0 mol %, and wherein said copolymer has MFR2 (230&#xb0; C.) in the range of from 0.5 to 15 g/10 min, flexural modulus below 400 MPa, and relaxation spectrum index (RSI) at 200&#xb0; C. below 20.0. The present invention further relates to a telecommunication cable comprising said jacket.

A process of making a cable having a conductor surrounded by at least one crosslinkable layer having a polymer composition. The polymer composition has (a) a polyolefin bearing hydrolysable silane groups and a silanol condensation catalyst compound.

Cable comprising a silane crosslinkable polymer composition

The present invention relates to an ethylene polymer composition for use in adhesive applications, to an article comprising the ethylene polymer composition and to a process for producing said article.

Polymer composition for adhesion applications

The present invention relates to a process for manufacturing a power cable, which power cable comprises at least one core comprising a conductor and an expanded and crosslinked insulation layer surrounding said conductor, wherein said process comprises the steps a) to d): a) providing a blend of: a polymer composition comprising a polyolefin material, which polyolefin material bears silane moieties; a catalyst and a foaming system, wherein the provided blend will comprise at least 0.1% by weight of a foaming agent, with respect to the total weight of the polyolefin material; b) extruding a blend, as described in step a), on the conductor to form an insulation layer; c) foaming the insulation layer; and d) crosslinking the insulation layer; a power cable which is obtainable by the process, and use of the power cable.

Process for manufacturing a power cable and power cable obtainable thereof

This invention relates to silane moisture curable polymer composition and more particularly, to such a polymer composition that is highly diluted by a non-silane containing component, while retaining good high temperatures properties. The invention is a polymer composition comprising a base resin comprising less than 59 wt % of a silane crosslinkable polyethylene (A), an thermoplastic polyolefin free from silane groups (B) wherein the polymer composition comprise a filler with a BET Nitrogen Surface Area larger than 3 m/g (C). The invention also relates to a cable layer of such polymer composition suitably a semiconducting layer of a power cable.

Polymer blends

The present invention relates to a polymer composition comprising a surfactant interacting additive, and wherein the polymer composition further comprises at least one silanol condensation catalyst, wherein each catalyst is selected from: i) a compound of formula I ArSOH (I) or a precursor thereof, wherein Ar is an 1 to 4 alkyl groups substituted aryl, wherein the aryl is phenyl or naphthyl, and wherein each alkyl group, independently, is a linear or branched alkyl with 10 to 30 carbons, wherein the total number of carbons in the alkyl groups is in the range of 20 to 80 carbons; ii) a derivative of i) selected from the group consisting of an anhydride, an ester, an acetylate, an epoxy blocked ester and an amine salt thereof which is hydrolysable to the corresponding compound of formula I; and iii) a metal salt of i) wherein the metal ion is selected from the group consisting of copper, aluminum, tin and zinc; an article, for example, a coating, a wire or a cable, comprising the polymer composition, a process for producing an article and use of the polymer composition.

Polymer composition comprising a crosslinkable polyolefin with hydrolysable silane groups, catalyst and a surfactant interacting additive

A process for for making a cross-linked polyethylene article includes: (A) feeding a blend comprising a cross-linkable silane-group containing polyethylene copolymer and at least one additive to an extruder, (B) feeding a liquid comprising a silanol condensation catalyst to said extruder to form a mixture with said blend, (C) extruding said mixture to form an article and (D) cross-linking said article. The article may be a pipe or cable.

Process for making a cross-linked polyethylene article

A semiconductive polyolefin composition comprising (i) up to 80 wt. % of a polyolefin (I), (ii) carbon black, and (iii) up to 60 wt. % of a polymer (II) having a melting point of not less than 100&#xb0; C., wherein the polyolefin (I) comprises two different ethylene copolymers: a first ethylene copolymer and second ethylene copolymer; wherein the first ethylene copolymer comprises polar group containing co-monomers in the amount of 3.5 mol % or less; and wherein the second ethylene copolymer comprises silane group containing co-monomers in the amount of 0.7 mol % or less.

Semiconductive polyolefin composition

The present invention relates to a semiconductive polymer composition comprising: &#x2014;an ethylene copolymer (A) comprising methyl(meth)acrylate co-monomer units, wherein the ethylene copolymer (A) has a melt temperature of 80&#xb0; C. or below, and&#x2014;carbon black, wherein the ethylene copolymer (A) is produced in a autoclave high pressure reactor or in a multi-feed tubular reactor; to a semiconductive polymer composition comprising&#x2014;an ethylene copolymer (A) comprising methyl(meth)acrylate, comonomer units; and&#x2014;carbon black, wherein ethylene copolymer (A) is characterized in that the fraction obtained in the first fractionation step (fraction 1) in the fractionation method of ethylene copolymer (A) as described herein, is present in an amount of not more than 40 wt. % based on the total amount of the ethylene copolymer (A); and to a cable comprising a semiconductive layer comprising the semiconductive polymer composition and to the use of the semiconductive polymer composition in the preparation of a semiconductive layer of a power cable.

Semiconductive polymer composition comprising polar copolymer

The present invention relates to the use of a silicon containing compound for reducing the retention time of a polyolefin composition comprising a crosslinkable polyolefin with hydrolysable silane groups. A master batch is compounded with the polyolefin composition to form a compounding composition. The master batch comprises a matrix polymer, a Bronsted acid that is a silanol condensation catalyst and is present in the amount of 0.7 to 3.5 wt %, and a silicon containing compound with a structure according to the formula (I): (R)[Si(R)(R)]wherein Ris Calkyl, Ris Calkoxy, Ris &#x2014;RSiRR, Ris &#x2014;(CH)(CH)&#x2014; where Y is a difunctional heteroatomic group, x+y+z=4, and m=1. The silicon containing compound is 2 to 10 wt % of the master batch, and 0.01 to 1.5 wt % of the compounding composition.

Silicon containing compound as processing aid for polyolefin compositions

A crosslinkable polymer composition having (a) a polyolefin bearing hydrolysable silane groups and a silanol condensation catalyst compound, as well as to an article, preferably a cable, thereof. A silanol condensation catalyst compound utilized for crosslinking an article, preferably a layer of a cable.

Silane crosslinkable polymer composition

The present invention relates to a semiconductive polyolefin composition comprising:

The present invention relates to a semiconductive polymer composition having easily controllable stripping characteristics, especially for an electric power cable. The semiconductive polymer composition has an ethylene copolymer having polar co-monomer units, wherein the amount of the polar co-monomer units in the ethylene copolymer is 10 wt. % or more, based on the total weight of the ethylene copolymer; an olefin copolymer having propylene monomer units and ethylene monomer units, wherein the olefin copolymer has a melting point of 110&#xb0; C. or less, and carbon black in an amount of from 10 to 50 wt. %, based on the total weight of the semiconductive polymer composition, wherein the olefin copolymer (B) is prepared by using a metallocene polymerization catalyst.

Strippable semiconductive composition comprising low melt temperature polyolefin

The present invention relates to a semiconductive polymer composition having easily controllable stripping characteristics, especially for an electric power cable. The semiconductive polymer composition has an ethylene copolymer having polar co-monomer units, wherein the amount of the polar co-monomer units in the ethylene copolymer is 10 wt. % or more, based on the total weight of the ethylene copolymer; an olefin copolymer having propylene monomer units and monomer units of an alpha-olefin having at least 4 carbon atoms, wherein the olefin copolymer has a melting point of 110 &#xb0; C. or less, and carbon black in an amount of from 10 to 50 wt. %, based on the total weight of the semiconductive polymer composition, wherein the olefin copolymer (B) is prepared by using a metallocene polymerization catalyst.

Growing community of inventors

Stenungsund, Sweden

Ola Fagrell