Borealis Technology Oy

Borealis Ag

Kenneth Johansson

Annika Smedberg

Jeroen Oderkerk

Thomas Hjertberg

Mattias Bergqvist

Roger Carlsson

Bjorn Voigt

Bernt-Åke Sultan

Jonas Jungkvist

Björn Voigt

Torbjorn Magnusson

Marcus Kierkegaard

Torbjörn Magnusson

Bernt-Aake Sultan

The present invention relates to an ethylene homo- or copolymerization process, characterized in that an inhibitor is added to the reaction mixture or any of its components before the reaction mixture is fed to the reaction zone. The present invention further relates to the use of an inhibitor to reduce fouling in an ethylene homo- or copolymerization process.

Ethylene polymerization process using an inhibitor

The present invention relates to a crosslinkable high pressure polyethylene composition containing ethylene silane copolymer resin having a content of silane of about 0.1 to 10 weight % and at least one silanol condensation catalyst. The invention further relates to a process for the preparation thereof, to a pipe made of said composition and to the use of the composition as an insulation for a cable.

Crosslinkable high pressure polyethylene composition, a process for the preparation thereof, a pipe and a cable prepared thereof

The present invention relates to an improved method for preparing an ethylene-silane copolymer comprising hydrolysable silane groups by radical-initiated polymerisation of ethylene and an olefinically unsaturated silane compound, such as vinyl trimethoxysilane (VTMS). Said method is performed in a multi-zone reactor comprising two or more reaction zones, wherein advantageously essentially all of the silane compound is introduced into the first reaction zone to provide a higher conversion of silane monomer into polymer.

Method for preparing an ethylene-silane copolymer

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Stenungsund, Sweden

Kenneth Johansson