Borealis Ag

Borealis Technology Oy

Pcd Polymere Gesellschaft M.b.h.

Borealis Gmbh

Markus Gahleitner

Jingbo Wang

Klaus Bernreitner

Pauli Leskinen

Johanna Lilja

Katja Ellen Klimke

Friedrich Berger

Martina Sandholzer

Norbert Hafner

Cornelia Anita Tranninger

Hermann Braun

Georg Grestenberger

Joachim Fiebig

Elisabeth Potter

Petar Emilov Doshev

Stefan Ortner

Daniela Mileva

Susanne Kahlen

Henk Van Paridon

Peter Niedersüss

Peter Niedersuss

Christelle Grein

Jani Aho

Luc Monnissen

Juliane Braun

Karlheinz Friedrich

Meta Cigon

Luigi Resconi

Carl-Gustaf Ek

Yi Liu

Luca Boragno

Peter Niedersuess

Thomas Horill

Matthias Hoff

Manfred Gruenberger

Peter Denifl

Bo Malm

Claudia Kniesel

Dietrich Gloger

Wilfried Peter Töltsch

Pirjo Jaaskelainen

Pirjo Jääskeläinen

Tung Pham

Olli Tuominen

Davide Tranchida

Doris Machl

Hermann Prokschi

Minna Aarnio-Winterhof

Wilfried Peter Toltsch

Simon Schwarzenberger

Ann Watson

Gerhard Hubner

Antonis Gitsas

Timo Leinonen

Markku Vahteri

Norbert Reichelt

Achim Hesse

Michael Tranninger

Antti Tynys

Johannes Wolfschwenger

Magnus Palmlof

Pavel Shutov

Bhawna Kulshreshtha

Päivi Pitkänen

Paivi Pitkanen

Wilhelmus Henricus Adolf Sars

Patrick Rover

Hermann Heinemann

Alexander Z Voskoboynikov

Vyatcheslav V Izmer

Torvald Vestberg

Bernt-Ake Sultan

Dmitry S Kononovich

Thomas Lummerstorfer

Pascal Castro

Ville Virkkunen

Michael Jerabek

Manfred Raetzsch

Francis Costa

Wolfgang Neissl

Ulf Panzer

Manfred Stadlbauer

Manfred Kirchberger

Nina Ackermans

Denis Yalalov

Pavel Sergeevich Kulyabin

Cornelia Kock

Stefan Schiesser

Espen Ommundsen

Antonios Gitsas

Tonja Schedenig

Erwin Kastner

Ulf Torgersen

Christian Paulik

Albrecht Dix

James Elliott Robinson

Dirk Leistner

Merja Poikela

John Haugen

Andreas Albrecht

The present invention relates to polypropylene compositions having a meltflow rate MFRof 75 to 250 g/10 min suitable especially for injection moulding applications comprising a heterophasic propylene copolymer and a particulate inorganic nucleating agent, a process for producing said polypropylene composition, an article comprising said polypropylene composition and the use of said polypropylene composition for injection molding of articles.

High flow polypropylene composition for injection moulding applications

The present invention is directed to a polypropylene composition (P) comprising a copolymer (C) of propylene and 1-hexene comprising a first random propylene copolymer (A) of propylene and a 1-hexene, and a second random propylene copolymer (B) of propylene and 1-hexene having a higher 1-hexene content than the first random propylene copolymer (A) as well as a plastomer (PL) being an elastomeric copolymer of ethylene and at least one Cto Cα-olefin. Further, the present invention is directed to an article comprising said polypropylene composition (P) and the use of said polypropylene composition (P) as a sealing layer in a multi-layer film.

Propylene copolymer composition with excellent optical and mechanical properties

Blown films, especially monolayer blown films, with an improved property profile, the blown films comprising at least 95.0 wt % of a specific heterophasic propylene copolymer (TERHECO).

Blown film

A heterophasic polypropylene copolymer having an MFR2 of 0.05 to 20 g/10 min (ISO 1133 at 230° C. with a loading of 2.16 kg) and a melting point (Tm) of 156 to 164° C. (measured by DSC according to ISO 11357) wherein the heterophasic polypropylene copolymer comprises at least the following components: (A) 55.0 to 95.0 wt % of a crystalline fraction (CF) having a comonomer content of 0 to 3.0 wt %; and (B) 5.0 to 45.0 wt % of a soluble fraction (SF) having a comonomer content of 12 to 45 wt %; wherein the intrinsic viscosity (IV) (in decalin at 135° C.) of the soluble fraction (SF) is 2.5 to 11 dl/g, and wherein the amount of crystalline fraction (CF) and the amount of soluble fraction (SF) are determined in 1,2,4-trichlorobenzene at 40° C.

Heterophasic polypropylene copolymers

A heterophasic polyolefin composition comprising 55 to 95 wt.-% based on the total weight of the heterophasic polyolefin composition of a propylene butene random copolymer (A) having an MFR(230° C.) of 0.3 to 100.0 g/10 min and a butene content of 1.5 to 8.0 wt.-%, wherein the propylene butene random copolymer is obtained by a process using a single site catalyst (I) and 5 to 45 wt.-% based on the total weight of the heterophasic polyolefin composition of a copolymer of ethylene (B) having a density in the range of 910 to 935 kg/mand an MFR(190° C.) of 0.5 to 10 g/10 min, wherein the copolymer of ethylene (B) is obtained by a process using a single site catalyst (II).

Heterophasic polyolefin composition

The present invention relates to a heterophasic polyolefin composition and articles produced therefrom with improved mechanical and optical properties, particularly low stress whitening. The present invention further relates to a process for the preparation of such a heterophasic polyolefin composition, articles made therefrom, particularly films, and uses of the heterophasic polyolefin composition. The heterophasic propylene copolymer composition comprises a heterophasic propylene copolymer (HECO) comprising a matrix (M) being a propylene homopolymer (H-PP) and an elastomeric propylene copolymer (EPC) dispersed in said matrix (M), wherein the heterophasic propylene copolymer (HECO) has (a) a melt flow rate MFf¾ (2.16 kg, 230° C.) measured according to ISO 1133 in the range of 5.0 to 25.0 g/10 min, (b) a soluble fraction content (SF) determined by TREF fractionation on CRYSTEX QC, Polymer Char (Valencia, Spain) in the range of 10.0 to 25.0 wt. %, (c) an ethylene content of the soluble fraction content (SF) in the range of from 18 wt. % to less than 39 wt. %, (d) an intrinsic viscosity (IV) determined according to DIN ISO 1628/1 (in decalin at 135° C.) of the soluble fraction (SF) in the range of from 1.5 to 2.5 dl/g, (e) a crystalline fraction content (CF) determined by TREF fractionation on CRYSTEX QC, Polymer Char (Valencia, Spain) in the range of 75 to 90 wt. %, (f) an ethylene content of the crystalline fraction content (CF) of from 0.1 wt. % to 5.0 wt. %, and the heterophasic propylene copolymer composition has a total ethylene content in the range of from 7 to 30 wt. %, determined by quantitative NMR spectroscopy.

Low stress whitening polypropylene composition

Disclosed is a process for producing a propylene polymer composition, which includes (a) polymerizing propylene in the presence of a polymerization catalyst to produce a propylene polymer; (b) recovering the propylene polymer, wherein the recovered propylene polymer has a xylene cold solubles (XCS) fraction in an amount of less than 3.0 wt. % based on the total weight amount of the recovered propylene polymer; (c) extruding the propylene polymer in the presence of a peroxide for introducing long chain branching into the propylene polymer to form a propylene polymer composition; and (d) recovering the propylene polymer composition, wherein the recovered propylene polymer composition of step (d) has a lower melt flow rate MFR(230°° C., 2.16 kg) compared to the recovered propylene polymer of step (b). Also disclosed is an article comprising said propylene polymer composition.

Long-chain branched propylene polymer composition

New polypropylene composition which combines low sealing initiation temperature (SIT), low overall migration, good mechanical and optical properties, its use and articles made therefrom.

Polypropylene composition for film sealing layer

New CCrandom copolymer composition, which shows improved sealing behaviour due to low sealing initiation temperature (SIT) and high hot tack force. In addition, the inventive composition shows an excellent sterilization behaviour, i.e. retention of low haze level after sterilization. The present invention is furthermore related to the manufacture of said copolymer composition and to its use.

C2C3 random copolymer composition

The present invention relates to heterophasic polypropylene compositions comprising a propylene homo- or copolymer forming a crystalline fraction as a matrix and an amorphous propylene ethylene elastomer as a soluble fraction dispersed in said matrix. The heterophasic polypropylene compositions further comprise an elastomeric ethylene/alpha-olefin random copolymer. The heterophasic polypropylene compositions have a well-balanced relation between stiffness and impact strength, low volatile and semi-volatile emissions and good processability.

Polypropylene composition with improved processability and impact strength

Multilayer film of at least three layers, one core layer and at least one sealing layer wherein the sealing layer comprises a linear low density polyethylene having a density in the range of 0.915 to 0.925 g/cm, and the core layer comprises a propylene 1-hexene copolymer, said copolymer has an 1-hexene content in the range of 2.0 to 5.0 wt.-% and a xylene soluble fraction in the range of 0.3 to 15.0 wt.-%.

Multilayer film

The present invention is directed to a propylene polymer composition comprising at least one propylene copolymer (C-PP), and an α-nucleating agent (NU), wherein the propylene copolymer (C-PP) comprises two propylene copolymer fractions (PP1) and (PP2), wherein propylene copolymer fraction (PP1) is contained in the propylene copolymer (C-PP) in an amount of 30 to 70 wt. % and the propylene copolymer fraction (PP2) is contained in the propylene copolymer (C-PP) in an amount of 70 to 30 wt. %, the comonomer content of propylene copolymer fraction (PP1) is in the range of 0.5 to 2.5 wt.-% and the comonomer content of the propylene copolymer fraction (PP1) is lower compared to the comonomer content of the propylene copolymer fraction (PP2), and the propylene polymer composition has (a) a melt flow rate MFR(230° C.) measured according to according to ISO 1133 of 1 to 5 g/10 min., and (b) a comonomer content of 4.0 to 8.0 wt. %, the comonomer(s) being ethylene and/or at least one Cto Cα-olefin. The above propylene polymer composition has improved impact and optical properties. The invention further provides a method of producing the above propylene polymer composition and an extrusion blow molded article comprising the above propylene polymer composition.

Random propylene polymer composition and use in extrusion blow moulding

The present invention is directed to a propylene polymer composition comprising (a) at least 90 wt. %, based on the weight of the total propylene homopolymer composition, of a propylene homopolymer having (i) a pentad isotacticity (mmmm) of equal or more than 98.0 mol.-%, determined by quantitativeC NMR spectroscopy, (ii) a relative amount of <2,1> erythro regio-defects of not more than 0.2 mol.-%, determined by quantitativeC NMR spectroscopy, as described herein, and (b) a nucleating agent (B) selective for the beta-modification of isotactic polypropylene in an amount of from 0.001 to 1.0 wt. %, based on the weight of the total propylene homopolymer composition, wherein said propylene homopolymer composition has a melt flow rate MFR(230° C., 2.16 kg) according to ISO 1133 of 0.1 to 10 g/10 min., a beta-phase content of not less than 80%, measured by wide angle x-ray scattering (WAXS). Further disclosed is a moulded propylene homopolymer product obtainable by compression moulding or extrusion of the propylene homopolymer composition.

Nucleated propylene polymer composition with high toughness

A process for producing a cap or closure comprising obtaining a polypropylene composition by sequential polymerization comprising the steps: A) polymerizing in a first reactor, preferably a slurry reactor, in the presence of a Ziegler-Natta catalyst monomers comprising propylene and optionally one or more comonomers selected from ethylene and C4-C10 alpha-olefins, to obtain a first propylene polymer fraction having a comonomer content in the range of 0.0 to 1.8 wt %, and a MFR2 in the range of from 12.0 to 40.0 g/10 min, as measured according to ISO 1133 at 230° C. under a load of 2.16 kg; B) polymerizing in a second reactor, preferably a first gas-phase reactor, monomers comprising propylene and one or more comonomers selected from ethylene and C4-C10 alpha-olefins, in the presence of the first propylene polymer fraction, to obtain a second propylene polymer fraction, wherein the polypropylene composition comprising said first and second propylene polymer fractions has an MFR2 in the range of from 12.0 to 60.0 g/10 min, as measured according to ISO 1133 at 230° C. under a load of 2.16 kg, has a comonomer content in the range of from 2.2 to 5.0 wt % and wherein the ratio of the comonomer content of component A) to the comonomer content of the polypropylene composition is 0.35 or less, C) melting, extruding and moulding the polypropylene composition in the presence of at least one nucleating agent to prepare a cap or closure; and D) exposing the cap or closure obtained in step (C) to a cooling rate of 50 K/s or more.

Process for preparing a cap or closure

Cast film made from terpolymers, and terpolymers containing units derived from propylene, ethylene and 1-butene.

Superior C2C3C4 terpolymer based cast film and C2C3C4 terpolymer

Growing community of inventors

Neuhofen/Krems, Austria

Markus Gahleitner