Borealis Ag

Borealis Technology Oy

Christelle Grein

Klaus Bernreitner

Markus Gahleitner

Pauli Leskinen

Georg Grestenberger

Cornelia Kock

Katja Ellen Klimke

Petar Emilov Doshev

Tonja Schedenig

Dietrich Gloger

Bernt-Ake Sultan

Torvald Vestberg

Magnus Palmlöf

Joachim Fiebig

Norbert Hafner

Friedrich Berger

Pirjo Jääskeläinen

Claudia Kniesel

Cornelia Anita Tranninger

Floran Prades

Michael Tranninger

Elisabeth Potter

Nina Ackermans

Tung Pham

Johannes Wolfschwenger

Doris Machl

Gregory Potter

Anton Wolfsberger

Juliane Braun

Espen Ommundsen

Ulf Torgersen

Juha Paavilainen

Balakantha Rao Kona

Mari Kylmälä

Thor Kamfjord

Andreas Hauer

Velichko Hristov

Sameli Hakola

Elisabeth Hebesberger

Klaus Bernreiter

Max Wachholder

Robert Persson

Daniel Sandholzer

Martin Rauch

Magnus Palmloef

Hristov Velichko

Peter NIEDERSÜSS

Eline Myhre

Mari Kylmala

Manfred Grünberger

Reactor grade thermoplastic polyolefins with high flowability and excellent surface quality comprising (A) 40-90 wt % of a propylene homo- or copolymer matrix with an MFR in accordance with ISO 1 133 (230&#xb0; C., 2.16 kg load) of &#x2265;200 g/10 min and (B) 2-30 wt % of an elastomeric ethylene-propylene copolymer having an intrinsic viscosity IV (according to ISO 1628 with decalin as solvent) of &#x2264;2.8 dl/g and an ethylene content of &#x3e;50 to 80 wt % and (C) 8-30 wt % of an elastomeric ethylene-propylene copolymer having an intrinsic viscosity IV (according to ISO 1628 with decalin as solvent) of 3.0-6.5 dl/g and an propylene content of 50 to 80 wt %, the reactor grade thermoplastic polyolefins being obtainable by a multistage polymerization process with at least 3 polymerization steps in the presence of a catalyst system comprising (i) a Ziegler-Natta procatalyst which contains a trans-esterification product of a lower alcohol and a phthalic ester and (ii) an organometallic cocatalyst and (iii) external donor represented by formula (I) Si(OCHCH)(NRR) wherein Rand Rcan be the same or different a represent a hydrocarbon group having 1 to 12 carbon atoms, as well as the use of these reactor grade thermoplastic polyolefins and molded articles produced from them.

Thermoplastic polyolefins with high flowability and excellent surface quality produced by a multistage process

Polypropylene composition having a melt flow rate MFR(230&#xb0; C.) of equal or above 15 g/10 min comprising: (a) a crystalline polypropylene matrix; (b) an elastomeric propylene copolymer phase having a propylene content in the range of 40 to 80 wt.-%, and an intrinsic viscosity in the range of more than 0.7 to less or equal 2.5 dl/g; (c) a first polyethylene having a density in the range 905 to 925 kg/m3 and melt flow rate MFR(190&#xb0; C.) of below 30 g/10 min; (d) a second polyethylene having a density of above 915 kg/m, and a melt flow rate MFR(190&#xb0; C.) of equal or above 30 g/10 min.

High flow and stiff polymer material with good transparency and impact properties

The present invention relates to a polyolefin composition comprising (a) a heterophasic propylene copolymer, wherein the xylene cold soluble fraction of the heterophasic propylene copolymer has an intrinsic viscosity of lower than 2.0 dl/g, (b) a high density polyethylene having a density of at least 940 kg/m, (c) a linear low density polyethylene, and (d) an inorganic filler, wherein the polyolefin composition has a MFR(230&#xb0; C.) of at least 20 g/10 min.

Low filled polypropylene composition with balanced property profile

Polypropylene composition comprising a polypropylene and an &#x3b1;-nucleating agent, wherein the polypropylene composition has &#x2022; a comonomer content of equal or below 1.0 wt.- %, &#x2022;&#x3c;2,1&#x3e; erythro regiodefects of more than 0.1 mol.- %, and &#x2022; at least 9.0 wt- % of a crystalline fraction crystallizing in the temperature range of above 160 to 170&#xb0; C., wherein said fraction is determined by the stepwise isothermal segregation technique (SIST).

BOPP film with high AC breakdown strength

Polyolefin composition comprising (a) a heterophasic propylene copolymer comprising a polypropylene (PP) having a melt flow rate MFR(230&#xb0; C.) of 30 to 350 g/10 min, and an elastomeric propylene copolymer (E) having an intrinsic viscosity (IV) in the range of 1.5 to 3.0 dl/g and (b) a polyethylene having a melt flow rate MFR(190&#xb0; C.) of 15 to 100 g/10 min, wherein (i) the total polyolefin composition has a melt flow rate MFR(230&#xb0; C.) of more than 15 to 200 g/10 min, and (ii) the weight ratio of elastomeric propylene copolymer to the polyethylene is below 2.0.

High flow polyolefin composition with low shrinkage and CLTE

A composition comprising: (I) 60 to 92.5 wt % of a first component which is a polypropylene polymer comprising a) 40 to 85 wt % of a propylene polymer A having a melt flow rate (MFR) between 0.01 and 300 g/10 min, and b) 15 wt % or more of at least one propylene ethylene copolymer; and (II) 2.5 to 30 wt % of a second component comprising at least one ethylene alkyl (meth)acrylate polymer; and optionally (III) 5 to 25 wt % of at least one filler.

Multicomponent polypropylene compositions for use in injection moulded articles

High purity heterophasic polypropylene copolymers comprising (A) 73 to 98 wt % of a propylene homo- or copolymer matrix with an MFRin accordance with ISO 1133 (230&#xb0; C., 2.16 kg load) of &#x2267;45 g/10 min and (B) 2 to 27 wt % of an elastomeric copolymer, comprising propylene in an amount of at least 50 wt % of component (B) and at least ethylene and/or one other Cto Calpha olefin in an amount of up to 50 wt % of component (B), the heterophasic polypropylene copolymers being obtainable by a multistage polymerization process in the presence of a catalyst system comprising (i) a Ziegler-Natta procatalyst which contains a trans-esterification product of a lower alcohol and a phthalic ester and (ii) optionally an organometallic cocatalyst and (iii) an external donor represented by formula (I) Si(OCHCH)(NRR) wherein Rand Rcan be the same or different a represent a hydrocarbon group having 1 to 12 carbon atoms, their production and use.

High purity heterophasic propylene copolymers

Polypropylene composition comprising (a) a high melt strength polypropylene having a melt flow rate MFR2 (230&#xb0; C.) of equal or below 15 g/10 min and a branching index g' of below 1.0, (b) a first heterophasic propylene copolymer comprising a polypropylene having a melt flow rate MFR2 (230&#xb0; C.) in the range of 50 to 500 g/10 min and an elastomeric propylene copolymer having a propylene content in the range of 50 to 80 wt.-% and an intrinsic viscosity (IV) of equal or more than 2.5 dl/g, (c) a second heterophasic propylene copolymer comprising a random propylene copolymer having a melt flow rate MFR2 (230&#xb0; C.) in the range of 1 to 40 g/10 min, a branching index g&#x2032; of 1.0, and a comonomer content of more than 0.5 wt.-%, and an elastomeric propylene copolymer having a propylene content in the range of 50 to 80 wt.-%, and an intrinsic viscosity (IV) of equal or below 2.4 dl/g, (d) a polyethylene plastomer having an ethylene content of at least 50 wt.-%, and (e) a mineral filler (F).

Stiff polypropylene composition with excellent elongation at break

The present invention relates to a polyolefin composition comprising a heterophasic propylene copolymer having a MFRof at least 5 g/10 min and a polyethylene (PE) having a density of at least 935 kg/mand a melt flow rate MFR5 (190&#xb0; C.) of less than 1.5 g/10 min.5

Heterophasic system with improved surface properties

The invention relates to propylene polymer compositions comprising 50-70 wt % of a propylene homo- or copolymer, 5-20 wt % of a first elastomeric ethylene-propylene copolymer, 5-25 wt % of a second elastomeric ethylene-propylene copolymer and 5-30 wt % of an ethylene polymer. The propylene polymer compositions are suitable for molding and they have low haze and a good impact strength/stiffness balance with good impact strengths at low temperatures.

Propylene polymer compositions

Polymer composition comprising&#x2014;a heterophasic propylene copolymer comprising a polypropylene matrix and an elastomeric propylene copolymer comprising at least one comonomer selected from the group consisting of ethylene and Cto C&#x3b1;-olefin, and&#x2014;a styrenic based elastomer(s) (B), wherein the styrene content in each styrenic based elastomer (B) is equal or below 15 wt.-%, and the total amount of the styrenic based elastomer(s) (B) based on the total amount of polymers present in the polymer composition is of 16.0 to 46.0 wt.-%.

Composition based on polypropylene compounds with styrenic based elastomers

Process for the production of polypropylene random copolymers containing 2.5 to 5.0 wt % of ethylene as comonomer and having an MFRin accordance with ISO 1 133 (230&#xb0; C., 2.16 kg load) of &#x2267;25 g/10 min to 100 g/10 min and a hexane-solubles content, determined according to FDA CFR 21 &#xa7;177.1520 below 5 wt %, said process comprising the step of polymerizing propylene and ethylene in the presence of a catalyst system comprising (i) a Ziegler-Natta procatalyst which contains a trans-esterification product of a lower alcohol and a phthalic ester as internal donor and (ii) an organometallic cocatalyst and (iii) an external donor represented by formula (I) or (II) Si(OCHCH)(NRR) (I) or Si(OCH)(CH(cyclohexyl) (II) wherein Rand Rcan be the same or different and represent a hydrocarbon group having 1 to 12 carbon atoms, the polypropylene random copolymers with a low level of odor and taste themselves and their use for injection molding applications, preferably for thin-wall packaging for food packaging in non-cooking applications and for medical packaging.

Process for the production of propylene random copolymers for injection moulding applications

The invention relates to the use of a polyolefin composition comprising a propylene-ethylene random copolymer having an ethylene content of 0.5-10 wt % and a randomness R of the ethylene distribution in the polymer chain of &#x2267;0.945 for the production of articles having high sterilization resistance.

Polyolefin compositions having improved optical and mechanical properties

The present invention relates to a polypropylene composition comprising a propylene homopolymer or a propylene random copolymer having at least one comonomer selected from alpha-olefins with 2 or 4-8 carbon atoms and a comonomer content of not more than 8.0 wt %, wherein the propylene homo- or copolymer is polymerized in the presence of a Ziegler-Natta catalyst, and the polypropylene composition has a MWD of 2.0 to 6.0 and an MFR (2.16 kg/230&#xb0; C.) of 4.0 g/10 min to 20.0 g/10 min, characterized in that the polypropylene composition has not been subjected to a vis-breaking step, the use of the inventive polypropylene composition for the production of a film and/or injection molded articles, a process for preparing a film wherein the inventive polypropylene composition is formed into a film, and wherein the polypropylene composition has not been subjected to a vis-breaking step and a film comprising the inventive polypropylene composition.

Polypropylene composition with improved optics for film and moulding applications

The present invention relates to a Insulation layer for cables, a composition and a process thereof, showing improved stress whitening resistance by maintaining good mechanical and electrical properties and being environmental friendly.

Layer for cables having improved stress whitening resistance

Growing community of inventors

Linz, Austria

Christelle Grein