Borealis Technology Oy

Borealis Ag

Other

Franz Ruemer

Markus Gahleitner

Jingbo Wang

Klaus Bernreitner

Pauli Leskinen

Per-Ola Hagstrand

Carl-Gustaf Ek

Martina Sandholzer

Bo Malm

Yi Liu

Victor Sumerin

Mattias Bergqvist

Luca Boragno

Elisabeth Potter

Antti Tynys

Denis Yalalov

Doris Machl

Andrey Buryak

Stefan Schiesser

Siegfried Liedauer

Juergen Emig

Karl Ebner

James McGoldrick

Jari Äärilä

Tua Sundholm

Gerhard Hubner

Andreas Albrecht

Asa Wannerskog

Andrei Ollikainen

Elisabeth Hebesberger

Stefan Rieder

Thierry Pezard

Christian Hollsten

Guenter Dreiling

Andreas Wolf

Martin Obadal

Carl-Gustav Ek

Senthil Kumar Kaliappan

ÅSa Wannerskog

Stefan Dreckoetter

Reinhold Gard

Joy Jie Cheng

Composition comprising a heterophasic propylene copolymer with low melt flow rate and rather low amount of xylene cold solubles and a recycled polymer composition being rich in polypropylene.

Composition containing recycled materials for pipes

The invention is related to a process for producing modified polyethylene having decreased melt flow rate (5 kg, 190&#xb0; C.) (MFR). In particular, the present invention is directed to a process in a controlled manner for producing modified polyethylene recyclates having low MFR and low gel content directly by reactive extrusion processing.

Molecular modification of polyethylene resin

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

Polypropylene composition comprising: a propylene homopolymer (A), a platelet-like inorganic filler (B) having optionally &#x3b1;-nucleating activity and a &#x3b2;-nucleating agent (C), wherein the propylene composition and/or the propylene homopolymer has (have) a polydispersity index (PI) of at least 4.0.

Sewage pipe comprising beta nucleated polypropylene material with improved properties

The present invention concerns a propylene copolymer composition, a molded article comprising the composition and the use of the propylene copolymer composition for preparing molded articles, preferably pipes.

Pipes comprising &#x3b2;-nucleated propylene copolymers

Heterophasic propylene copolymer (HECO) comprising wherein the heterophasic propylene copolymer (HECO) is &#x3b2;-nucleated and the elastomeric phase has an intrinsic viscosity measured in tetraline at 135&#xb0; C. of equal or below 4.0 dl/g.

Beta-nucleated propylene copolymer

The present invention relates to a heterophasic polymer composition which comprises (i) a matrix comprising a propylene homopolymer and/or a propylene copolymer having an amount of comonomer units of less than 1.0 wt %, and (ii) an elastomeric polypropylene which is dispersed within the matrix and comprises comonomer units derived from ethylene and/or a C4 to C12 alpha-olefin; and wherein the heterophasic polymer composition has an amorphous fraction AM in an amount of 2.0 to 7.5 wt %, and the amorphous fraction AM has an amount of ethylene- and/or C4 to C12 alpha-olefin-derived comonomer units of 20 to 45 wt %.

Heterophasic polymer composition of high stiffness

The invention relates to novel propylene polymers with improved properties especially with improved stiffness and impact strength comprising propylene homopolymers or propylene block copolymers with 90.0 to 99.9 wt % propylene and 0.1 to 10 wt % &#x3b1;-olefins with 2 or 4 to 18 carbon atoms, or mixtures thereof, wherein the propylene homopolymers or propylene block copolymers are &#x3b2;-nucleated propylene polymers, whereby the &#x3b2;-nucleated propylene homopolymers have an Ir&#x3c4;&#x2267;0.98 and the values for tensile modulus and Charpy impact strength as specified herein. The &#x3b2;-nucleated propylene block copolymers are polymers having an IR&#x3c4; of the propylene homopolymer block of &#x2267;0.98 and the values for tensile modulus and Charpy impact strength as also specified herein. The propylene polymers with an improved property spectrum are suitable for producing molded parts in a pipe system, such as pipes and fittings, inspection chambers, pipe ducting systems, extrusion or compression molded sheets and the like.

Propylene polymers with improved properties

The invention relates to a colored &#x3b2;-nucleated polypropylene composition having a high content of &#x3b2;-modification, wherein the polypropylene composition comprises at least one &#x3b2;-nucleating agent and an inorganic blue pigment and an inorganic yellow pigment.

Coloured polypropylene composition having a high content of &#x3b2;-modification

The invention relates to a novel process for producing coloured polypropylene compositions having a high content of &#x3b2;-modification, wherein polypropylene is melt blended with at least one inorganic pigment and at least one &#x3b2;-nucleating agent, wherein a1) polypropylene is melt blended with at least one inorganic pigment or with a first concentrate comprising the at least one inorganic pigment to obtain a coloured polypropylene and a2) the coloured polypropylene is melt blended with at least one &#x3b2;-nucleating agent or with a second concentrate comprising the at least one &#x3b2;-nucleating agent to obtain the coloured &#x3b2;-nucleated polypropylene composition or b1) polypropylene is melt blended with at least one &#x3b2;-nucleating agent or with a second concentrate comprising the at least one &#x3b2;-nucleating agent to obtain a &#x3b2;-nucleated polypropylene and b2) the &#x3b2;-nucleated polypropylene is melt blended with at least one inorganic pigment or with a first concentrate comprising the at least one inorganic pigment to obtain the coloured &#x3b2;-nucleated polypropylene composition or c) a third concentrate is produced by melt blending a first concentrate comprising the at least one inorganic pigment and a second concentrate comprising the at least one &#x3b2;-nucleating agent and the polypropylene is melt blended with the third concentrate to produce the coloured &#x3b2;-nucleated polypropylene composition or d) a first concentrate comprising the at least one inorganic pigment and a second concentrate comprising the at least one &#x3b2;-nucleating agent are melt blended with the polypropylene to obtain the coloured &#x3b2;-nucleated polypropylene composition.

Process for producing coloured polypropylene composition having a high content of &#x3b2;-modification

Polypropylene composition comprising a propylene homopolymer (A) and a random propylene-butene copolymer (B) or a random propylene-ethylene copolymer (B') wherein the polypropylene composition is &#x3b2;-nucleated.

&#x3b2;-nucleated polypropylene composition

A pressure pipe with increased long-term pressure resistance is comprised of a polypropylene composition. The polypropylene composition is comprised of a polyproyplene copolymer which is at least partially crystallised in the &#x3b2;-modification.

Pressure pipes

Growing community of inventors

St. Georgen/Gusen, Austria

Franz Ruemer