Borealis Ag

Kurt Stubenrauch

Hermann Braun

Jeroen Oderkerk

Thomas Hjertberg

Yi Liu

Kristin Reichelt

Luca Boragno

Francis Costa

Anh Tuan Tran

Andrey Buryak

Mark Jeruzal

The present invention relates to an adhesive composition comprising a. a polyethylene resin (A) which has been grafted with an acid grafting agent and b. an epoxy resin (B) in an amount of 0.01 to 15 wt. % of the adhesive total composition, wherein the adhesive composition is having a MFRof 0.1 to 12 g/10 min. Furthermore, the invention relates to an article, in particular a multilayer pipe, comprising an adhesive layer which comprises said adhesive composition and the use of said adhesive composition for the production of an adhesive layer, in particular of an adhesive layer of a pipe.

Adhesive composition

The present application relates to a polyethylene composition comprising a base resin being a copolymer of ethylene with at least one alpha olefin comonomer having from 3 to 12 carbon atoms, the base resin having a density of more than 940.0 kg/mand equal to or less than 952.5 kg/m, determined according to ISO 1 183-1:2004, wherein the composition has a melt flow rate MFR5 (190&#xb0; C., 5 kg) of 0.10 to 3.0 g/10 min, determined according to ISO 1 133, a storage modulus of G (2 kPa) of 600 Pa to 900 Pa, a shear thinning index SHI2.7/210 of 20 to 50 and the composition has an elongation at break (EB) at &#x2212;45&#xb0; C. in dependence of the molar comonomer content (mol. CC) of the base resin following the following equation EB[%]&#x3e;175[%/mol %]&#xb7;mol. CC[mol %], whereby the elongation at break (EB) is determined according to ISO 527-1 at a temperature of &#x2212;45&#xb0; C. and the molar co-monomer content (mol. CC) reflects the molar content of alpha-olefin comonomer units in the total content of monomer units of the base resin, an article comprising such a polyethylene composition and the use of such a polyethylene composition for the production of an article.

Polyethylene composition for pipe and pipe coating applications

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St. Georgen an der Gusen, Austria

Kurt Stubenrauch