Borealis Ag

Borealis Technology Oy

Borealis A/s

Abu Dhabi Polymers Co. Ltd (borouge) L.l.c.

Neste Oy

Borealis Holding A/s

Pauli Leskinen

Jingbo Wang

Markus Gahleitner

Klaus Bernreitner

Johanna Lilja

Kauno Alastalo

Petar Emilov Doshev

Bo Malm

Katja Ellen Klimke

Cornelia Anita Tranninger

Luca Boragno

Peter Niedersüss

Matthias Hoff

Torvald Vestberg

Klaus Nyfors

Olli Tuominen

Stefan Ortner

Peter Niedersuess

Esa Korhonen

Erno Elovainio

Michiel Bergstra

Cornelia Kock

Ismo Pentti

Martina Sandholzer

Markku Vahteri

Norbert Reichelt

Michael Tranninger

Juliane Braun

Cristian Hedesiu

Peter Niedersuss

Saeid Kheirandish

Fred Bergmann

Sybille Simon

Werner Posch

Ward Mennes

Veli-Matti Keinänen

Erik A Eriksson

Luigi Resconi

Thomas Garoff

Peter Denifl

Daniela Mileva

Hermann Braun

Friedrich Berger

Jukka Koskinen

Elisabeth Potter

Jani Aho

Pirjo Jaaskelainen

Pirjo Jääskeläinen

John Severn

Thomas Horill

Amir K Karbasi

Pavel Shutov

Hermann Prokschi

Karlheinz Friedrich

Petri Rekonen

Antonios Gitsas

P&auml;ivi Pitk&auml;nen

Manfred Gruenberger

Pirjo Jaaskel&auml;inen

Mika H&auml;rk&ouml;nen

Geir Johnsen

Jouni Kivelä

John Haugen

Christian Goetzloff

Sameli Hakola

Ilke Senol

Katri Nikkilä

Tapio Kokko

Jukka-Pekka Parjanen

P&auml;ivi Huovinen

Anna Fait

Thomas Horrill

Guenter Gsellmann

Hao Ding

Jouni Kivela

Marianne Vuorikari

Blown films based on a blend of a CCrandom copolymer and a C-based plastomer, which combine low scaling initiation temperature (SIT), good optical properties and an improved stiffness/impact balance, and which also show an excellent sterilization behaviour.

Blown films with improved property profile

The present invention relates to a propylene polymer composition comprising a long chain branched propylene polymer, wherein said propylene polymer composition has a) a xylene hot insolubles (XHU) fraction in an amount of less than 1.0%, based on 5 the total weight amount of the propylene polymer composition, b) a melting temperature Tm of less than 160° C., c) a crystallization temperature Tc of at least 115° C., and d) a F30 melt strength of from 5.0 to less than 30.0 cN, a process for producing said propylene polymer composition by reactive modification of a propylene polymer in the presence of a peroxide, an article comprising said propylene polymer composition and the use of said propylene polymer composition for producing an article.

Long-chain branched propylene polymer composition

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

The invention relates to a system for producing polyolefin. The system comprises a gas phase reactor () for polymerizing an olefin to obtain polymerization product. The gas phase reactor () comprises a gas distribution plate () arranged inside the gas phase reactor (); a first outlet () for continuously withdrawing polymerization product from the gas phase reactor () as a first product stream, the first outlet () being arranged above the gas distribution plate (); and a second outlet () for continuously withdrawing polymerization product from the gas phase reactor () as a second product stream, the second outlet () being arranged above the gas distribution plate (). The system further comprises a first outlet tank () in fluid communication with the first outlet () via a first passage (), wherein the first passage () comprises a first valve means () for controlling the flow of the first product stream in the first passage () and wherein the first outlet tank () is arranged to receive the first product stream and to concentrate the first product stream; a product receiver tank () in fluid communication with the second outlet () via a second passage (), wherein the second passage () comprises a second valve means () for controlling the flow of the second product stream in the second passage (), and wherein the product receiver tank () is arranged to receive the second product stream; and a control means in communication with the first valve means () and the second valve means () and arranged to control the operation of the first valve means () and the second valve means () so that flow in only one of the first passage () and the second passage () is allowed at a time. The invention relates also to a process for recovering polymerization product from a gas phase reactor (). The gas phase reactor () is suitable for polymerizing an olefin to obtain polymerization product and comprises a gas distribution plate () arranged inside the gas phase reactor (); a first outlet () for continuously withdrawing polymerization product from the gas phase reactor (), the first outlet () being arranged above the gas distribution plate (); and a second outlet () for continuously withdrawing polymerization product from the gas phase reactor (), the second outlet () being arranged above the gas distribution plate (). The process comprises selectively withdrawing polymerization product from the gas phase reactor () via the first outlet () as a first product stream, feeding the first product stream to a first outlet tank (), and concentrating the first product stream in the first outlet tank (); or withdrawing polymerization product from the gas phase reactor () via the second outlet () as a second product stream, and feeding the second product stream to a product receiver tank ().

System for producing polyolefin and process for recovering polymerization product from gas phase reactor

The invention relates to a process for producing a polypropylene composition by sequential polymerization said polypropylene composition having low sealing initiation temperature (SIT) and high melting point (Tm), presenting thus a broad sealing window.

Process for preparing polypropylene composition

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 process for producing a prepolymerized solid Ziegler-Natta catalyst in batch mode, a prepolymerized solid Ziegler-Natta catalyst, a process for producing a propylene polymer using said prepolymerized solid Ziegler-Natta catalyst, a prepolymerized solid Ziegler-Natta catalyst obtained by a process as well as the use of the prepolymerized solid Ziegler-Natta catalyst in a process for producing a propylene polymer.

Process for producing a prepolymerized solid Ziegler-Natta catalyst

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

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

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

Multilayer film of at least three layers, one core layer and at least one sealing layer wherein 5 the sealing layer comprises a linear low density polyethylene having a density in the range of 0.915 to 0.925 g/cm3, and the core layer comprises a propylene 1-hexene copolymer, said copolymer has an 1-hexene content in the range of 4.5 to 8.0 wt.-% and a xylene soluble fraction of more than 10.0 wt.-%.

Provided are multilayer polymer films comprising LLDPE, LDPE and a random propylene-ethylene copolymer which films suitable for packaging applications and are mechanically recyclable, and to recycled polymer compositions formed by mechanically recycling such films. The recycled polymer compositions may be combined with a polypropylene random copolymer and used to form further polymer films suitable for packaging applications applications.

Recyclable polymer films and compositions

The invention is related to polypropylene compositions combining high impact strength with good haze and additionally showing good stress whitening resistance.

Polypropylene composition with improved optical properties and whitening resistance

Growing community of inventors

Helsinki, Finland

Pauli Leskinen