Borealis Technology Oy

Remko Van Marion

Bill Gustafsson

Mats Bäckman

Irene Helland

Roger Carlsson

Hans Eklind

Svein Stall Eggen

Erik Van Praet

Mats Baeckman

Siw Fredrikson

The present invention relates to a film comprising at least one layer comprising an ethylene homo- or copolymer which has a complex viscosity at 5 kPa shear stress eta5 of 200,000 or less and a shear thinning index SHI(5/300) measured at 190&#xb0; C. as the ratio between the complex viscosity at 5 kPa shear stress and the complex viscosity at 300 kPa shear stress of 120 or more.

Polyethylene film with improved processability and mechanical properties

The present invention relates to a polyethylene composition, comprising a base resin which comprises (i) a first fraction which is an ethylene homo- or copolymer, and (ii) a second fraction which is an ethylene copolymer, wherein the first fraction (i) has a lower weight average molecular weight than the second fraction (ii), and the base resin has a density of less than 0.940 g/cm3 and a shear thinning index SHIof at least 25.

Outer sheath layer for power or communication cable

The present invention relates to a polyethylene resin comprising A) a first ethylene homo- or copolymer fraction, and B) a second ethylene homo- or copolymer fraction, wherein fraction (A) has a lower molecular weight than fraction (B), characterized in that the polymer resin powder obtained directly after the final polymerisation step has a particle size distribution PSDequal to or smaller than 12. Furthermore, the invention relates to a process for the production of a polymer composition comprising: (i) a step in which ethylene monomers, and optionally further alpha-olefin-comonomers, are polymerised in liquid phase in the presence of a polymerisation catalyst, (ii) a step in which ethylene monomers, and optionally further alpha-olefin comonomers, are polymerised in the gas phase in the presence of a polymerisation catalyst, and (iii) obtaining a polymer resin powder after the final polymerisation step wherein the powder has a particle size distribution PSDequal to or smaller than 12.

Polyethylene resin with narrow particle size distribution

A power or communications cable having an outer sheath layer made of a polyethylene composition including a base resin which comprises (A) a first ethylene homo- or copolymer fraction, and (B) a second ethylene homo- or copolymer fraction, wherein fraction (A) has a lower molecular weight than fraction (B), and the base resin has a molecular weight distribution M/Mof more than 14.

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Vienna, Austria

Remko Van Marion