Borealis Ag

Borealis Technology Oy

Borealis Gmbh

Borealis A/s

The Japan Steel Works, Ltd.

Borealis Polymers Oy

Carl-Gustaf Ek

Jingbo Wang

Klaus Bernreitner

Mats Bäckman

Markus Gahleitner

Per-Ola Hagstrand

Magnus Palmlöf

Bo Malm

Denis Yalalov

Olli Tuominen

Siegfried Liedauer

Anneli Pakkanen

James McGoldrick

Cecilia Rydin

Anil Sönmez

Kauno Alastalo

Achim Hesse

Franz Ruemer

Tony Lindstroem

Susanne Kahlen

Markku Vahteri

Ola Fagrell

Norbert Reichelt

Yi Liu

Floran Prades

Mattias Bergqvist

Anders E Nymark

Ulf Torgersen

Bernd Kretzschmar

Thomas Rätzsch

Ola (deceased) Fagrell

Shigeki Inoue

Johan Defoer

John Severn

Svein Jamtvedt

Jari Aarila

Bhawna Kulshreshtha

Aimo Sahila

Takayuki Yamazawa

Junichi Iwai

Asa Wannerskog

Helge Lindstrom

Rune Nygaard

Allan Boye Hansen

Hans Sandberg

Sandeep Tyagi

Mats Backman

Tarja-Tuulikki Turpeinen

Yutaka Mizutani

Arne Syre

May-Lis Andersson

Kenneth Lund

Tony Lindström

Stefan Rieder

Gunhild Rohne

Pekka Heikkila

Lars H&ouml;jer

Svein Eggen

Ilka Vaara

Kristen Kjeldsen

Gavin Lewis

Mirela Tury Pastorini

Jarmo Harjuntausta

Tony Lindstrom

Gernot Baumgartel

ÅSa Wannerskog

Floran Régis Prades

Gundhild Rohne

Gernot Baumgärtel

The present invention provides a process for producing a polyethylene composition by treating a cross-linkable ethylene copolymer containing monomer units with hydrolysable silane-groups and polar monomer units. The invention further provides a treated cross-linkable polyethylene composition 5 obtained by the process and a silane-crosslinked polyethylene composition obtained by the process. The invention further provides articles comprising the treated cross-linkable polyethylene composition or comprising the silane-crosslinked polyethylene composition.

Process for producing a polyethylene composition using molecular weight enlargement

The invention provides a flame retardant material comprising a substrate, an optionally corona-treated coating on the substrate, the coating comprising a polyolefin composition comprising a) an ethylene based plastomer with a density in the range of 0.857 to 0.915 g/cmand an MFRin the range 0.5-30 g/10 min; b) a propylene based plastomer with a density in the range of 0.860 to 0.910 g/cmand an MFRin the range 0.01-30 g/10 min; and c) a flame retardant, a primer layer on top of the coating and a lacquer topcoat.

Flame retardant materials

The present invention is directed to a polypropylene composition (C) comprising a heterophasic propylene copolymer (RAHECO) and a plastomer (PL) as well as a process for the preparation of said polypropylene composition and a film obtained from said polypropylene composition (C).

Soft and transparent propylene compolymers

Soft and transparent propylene copolymers

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 application relates to a process for producing a multimodal polyethylene composition comprising the steps of at least partially melting a first polyethylene resin (A) having a viscosity average molecular weight My of equal to or more than 700 kg/mol to equal to or less than 10,000 kg/mol and a density of equal to or more than 920 kg/mto equal to or less than 960 kg/min a first homogenizing device, at least partially melting a second polyethylene resin (B) having a Mw of equal to or more than 50 kg/mol to less than 700 kg/mol, and a density of equal to or more than 910 kg/mto equal to or less than 960 kg/min a second homogenizing device, combining the at least partially molten first polyethylene resin (A) with the at least partially molten second polyethylene resin (B) in said second homogenizing device, compounding the combined first polyethylene resin (A) and second polyethylene resin (B) in said second homogenizing device to form a multimodal polyethylene composition, wherein the multimodal polyethylene composition has a melt flow rate MFR(190&#xb0; C., 5 kg) of 0.01 to 10.0 g/10 min and a density of equal to or more than 910 kg/mto equal to or less than 970 kg/mand a polyethylene composition obtainable by said process.

Process for producing multimodal polyethylene blends including ultra-high molecular weight components

The present invention relates to crosslinkable polyolefin compositions, to a process for their preparation, to crosslinked compositions such as foams, sealants or adhesives and shaped articles, and their use in food packaging, textile packaging and technical and protection films. The crosslinkable polyolefin composition comprises one or more polyolefin polymers A, a hydrolysable silane functional polyolefin polymer B prepared from monomers comprising olefin monomers a) and silane functional compound(s) b), wherein the silane functional polyolefin polymer B is grafted onto the one or more polyolefin polymers A. The crosslinkable polyolefin compositions is crosslinkable by moisture.

Crosslinkable polyolefin composition

The present application relates to a process for producing a multimodal polyethylene composition comprising the steps of blending a polyethylene fraction (A-1) having a weight average molecular weight Mw of equal to or more than 700 kg/mol to equal to or less than 10,000 kg/mol and a density of equal to or more than 920 kg/mto equal to or less than 960 kg/mand a polyethylene fraction (A-2) having a lower Mw as polyethylene fraction (A-1) and a density of equal to or more than 910 kg/mto equal to or less than 960 kg/mwith a weight ratio of (A-1) to (A-2) of 45:55 to 80:20 to form a first polyethylene resin (A) having a Mw of equal to or more than 200 kg/mol to equal to or less than 1500 kg/mol, a melt flow rate MFR(190&#xb0; C., 5 kg) of 0.001 to 10 g/10 min and a density of equal to or more than 910 kg/mto equal to or less than 960 kg/m, blending the first polyethylene resin (A) with a second polyethylene resin (B) having a Mw of equal to or more than 50 kg/mol to less than 700 kg/mol, and a density of equal to or more than 910 kg/mto equal to or less than 960 kg/mto form the multimodal polyethylene composition, wherein the multimodal polyethylene composition a melt flow rate MFR(190&#xb0; C., 5 kg) of 0.01 to 10 g/10 min and a density of equal to or more than 910 kg/m3 to equal to or less than 970 kg/m, a polyethylene composition obtainable by said process and the polyethylene resin of said first blending step.

The invention relates to a polypropylene composition comprising a crystalline propylene random copolymer and an amorphous propylene copolymer having improved hot-tack force and adhesion properties, to a process for the manufacture thereof, to the use thereof in the manufacture of adhesives and hot tack films and to articles comprising the polypropylene composition, as well as to a process for producing such article.

Polypropylene composition with improved hot-tack force

The invention is related to a polyethylene composition characterized in that it comprises a base resin and an inorganic mineral filler which is present in the composition in an amount of 1 to 50 wt % in respect to the weight of composition, wherein said base resin comprises: a) a first crosslinked polyethylene (PEX) having a gel content (measured according to ASTM D 2765:2006) in the range of 5% to 80% in respect to the weight of crosslinked polyethylene (PEX), said crosslinked polyethylene (PEX) being obtained from recycled wastes and b) a second polyethylene (PE) selected from virgin polyethylene and recycled polyethylene, or mixtures thereof. The invention is further related to a process for production of said polyethylene composition, and use of the polyethylene composition.

Composition based on recycled polyethylene from cable waste

The invention relates to an adhesive composition wherein such composition comprises at least one polypropylene copolymer and wherein such adhesive composition has improved overall bond performance. It further relates to an article comprising said adhesive composition, as well as to a process for producing such article. It even further relates to the use of the adhesive composition in the preparation of an article.

Polypropylene based hot-melt adhesive composition

The invention is directed to a use of a polymer composition comprising an ethylene polymer for producing a crosslinked article, a process for producing a crosslinked article and to a crosslinked article comprising a crosslinked polymer composition which comprises a crosslinked ethylene polymer.

Polymer composition for crosslinked articles

Polyolefin multilayer pipes consisting at least one of the layers of a &#x3b2;-nucleated propylene homopolymer and/or &#x3b2;-nucleated copolymers from 90.0 to 99.9% by weight of propylene and 0.1 to 10.0% by weight of &#x3b1;-olefins. The pipes are to be classified in ring stiffness class &#x2267;4. The pipes are suitable for non pressure pipe applications, preferably for outdoor use, for above as well as underground drainage and sewerage pipe systems, surface water pipes, pipes for cable protection, pipes for cold climate conditions and for indoor use, soil and waste water pipes.

Polyolefin multilayer pipe

A pressureless polymer pipe, a composition therefore, and a process of preparing the composition are described. The pipe is characterized in that the polymer comprises a propylene polymer composition where the propylene base polymer is a heterophasic propylene copolymer having a matrix of a propylene homopolymer and a dispersed phase of an elastomeric copolymer of propylene and at least one olefin comonomer; has a comonomer content of 2-7% by weight, based on the weight of the heterophasic propylene copolymer; has a melt flow rate MFR (2/230), determined according to ISO 1133 C4, of 0.1-2.0 g/10 min; has a broad molecular weight distribution as defined by its rheology shear thinning index, SHI, measured at 200&#xb0; C. of 9-30; has a tensile modulus, determined according to ISO 527-2/1B at 1 mm/min and 23&#xb0; C. of at least 1800 MPa; has an impact strength, determined according to ISO 179/1 eA of at least 6 kJ/mat 0&#xb0; C. and at least 2 kJ/mat &#x2212;20&#xb0; C. The composition is a polymer composition as defined above. The process is characterized by polymerizing in the presence of a stereospecific Ziegler-Natta catalyst including an electron donor:(i) a propylene homopolymer matrix in at least one loop reactor at a temperature of at least 80&#xb0; C. and a pressure of 4600-10000 kPa; and (ii) an elastomeric copolymer of propylene and at least one olefin comonomer in at least one gas-phase reactor at a lower temperature than in stage (i); to obtain a base polymer of heterophasic propylene copolymer as defined above.

Pressureless polymer pipe, a compositon therefore, and a process for preparing it

The present invention relates to a polymer composition, comprising (i) a polypropylene homopolymer, (ii) a polypropylene random copolymer, prepared by copolymerization of propylene with an olefin comonomer and having an amount of olefin comonomer units of 0.2 to 5 wt %, and (iii) an elastomeric copolymer of propylene and at least one olefin comonomer, the polymer composition having a tensile modulus, determined according to ISO 527-2/1 B at 1 mm/min. and 230 C, of at least 1200 MPa.

High melt flow polymer of improved durability for pipe applications

Growing community of inventors

Västra Frölunda, Sweden

Carl-Gustaf Ek