Borealis Ag

Borealis Gmbh

Oscar Prieto

Daniela Mileva

Jeroen Oderkerk

Tanja Piel

Jari-Jussi Ruskeeniemi

Stefan Hellström

Christian Müller

Massimiliano Mauri

Ola Fagrell

Denis Yalalov

Per-Ola Hagstrand

Bernt-Ake Sultan

Martin Anker

Thomas Hjertberg

Bill Gustafsson

Floran Prades

Francis Costa

Perry Nylander

Thomas Gkourmpis

Kristian Dahlen

Kjell Fossum

Takashi Uematsu

Ann Watson

Bernt-Åke Sultan

Wendy Loyens

Christian Piel

Asa Wannerskog

Linus Karlsson

Urban Andreasson

Anna Hjartfors

Yingwei Ouyang

Anna Peterson

Anna Hjärtfors

Stefan HELLSTRÖM

ÅSa Hermansson

Martin Gren

The present invention concerns a foamable polymer composition and a foamed polymer composition obtained by foaming this foamable polymer composition. The invention is also concerned with a cable comprising at least one layer which comprises the foamable polymer composition or the foamed polymer composition. The invention further provides a process for producing a foamed polymer composition.

Foaming behaviour of polymer compositions using passive nucleation

The invention provides a polyolefin composition comprising (i) a polyolefin (A) comprising epoxy groups; and (ii) a polyolefin (B) comprising carboxylic acid groups and/or precursors thereof, with the proviso that at least one of (A) and (B) is polyethylene. Preferably one of (A) and (B) is a low density polyethylene (LDPE) and the other is a polypropylene.

Polymer compositions comprising mixtures of polyolefins

The present invention discloses a process for providing a cross-linked composition, the process comprising the steps of (a) providing an ethylene-α-olefin plastomer having—a density of from 850 kg/mto 900 kg/m; and—an melt flow rate (ISO 1133, 2.16 kg, 190° C.) of 0.3 to 50 g/10 min; (b) grafting the ethylene-α-olefin plastomer with silane crosslinker such that the content of silane crosslinker is in the range of 0.1 to 10.0 wt. % with respect to the grafted ethylene-α-olefin plastomer; (c) contacting said grafted ethylene-α-olefin plastomer with 2 to 8 wt. % of a tin-free silane crosslinking catalyst with respect to the resulting mixture of grafted ethylene-α-olefin plastomer and tin-freesilane crosslinking catalyst, wherein said tin-free catalyst comprises a Brönsted acid at 23° C. and 50% relative humidity for at least 15 minutes thus forming a cross-linked composition, wherein gel content of said cross-linked composition after 15 min is at least 60%.

High speed cross-linking of grafted plastomers

Articles comprising a polymer composition, wherein the polymer composition is obtainable by grafting an ethylene copolymer with comonomer units comprising hydrolysable silane groups, wherein the polymer composition shows high gel content and low compression set at −25° C. These articles have applications in automotive weather-stripping, such as sealing systems for doors, trunks and hoods.

Cross-linked plastomers as a replacement for rubber

The present invention relates to an ethylene polymer composition comprising: (A) an ethylene polymer comprising epoxy-groups, and (B) a cross-linking agent comprising: (B1) an organo-metallic Lewis acid, and at least one of: (B2) a compound comprising at least one amino group; and (B3) a compound comprising at least one hydroxyl group.

Cross-linkable ethylene polymer composition comprising epoxy-groups and a cross-linking agent

The present invention provides a polyolefin composition, said composition comprising a terpolymer comprising a cross-linkable polyolefin comprising hydrolysable silane groups and a polar comonomer, the polyolefin composition further comprising a cross-linking catalyst and a silicon containing compound. The polar comonomer Is present in an amount of 5-35 wt %.

Rubber replacement material comprising terpolymers

The present invention relates to a cross-linkable polyolefin composition comprising a first olefin polymer (A) comprising a first comonomer comprising epoxy groups, and a second olefin polymer (B) comprising a second comonomer comprising carboxylic acid groups and/or precursor thereof.

Cross-linkable polyolefin composition comprising a first and a second olefin polymer

The present invention relates to silane crosslinking catalyst comprising: &#x2014;75 to 85 wt.-% of an olefin acrylate interpolymer and&#x2014;15 to 25 wt.-% of a hindered amine light stabilizer (HALS) having a number average molecular weight Mn of 1500 to 4000 g/mol; and&#x2014;optionally up to 5 wt.-% wax, wherein the silane crosslinking catalyst is free of tin, carboxylic acid(s) and sulphonic acid(s), all weight percentages with respect to the total weight of the silane crosslinking catalyst.

Low speed cross-linking catalyst for silane-grafted plastomers

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 a flame retardant polymer composition comprising a crosslinkable terpolymer comprising ethylene monomer units, a silane group containing comonomer units and comonomer units comprising a polar group; a metal carbonate filler and a silicone fluid or gum; wherein the content of the comonomer units comprising a polar group is between 2 and 25 wt % of the terpolymer and the content of the silane group containing comonomer units is between 0.2 and 4 wt % of the terpolymer. The present invention is also directed to the process for the production of the polymer composition, to a cable and/or to an electrical device having a layer comprising said polymer composition, and uses thereof.

Flame retardant polymer composition

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

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Stenungsund, Sweden

Oscar Prieto