Borealis Ag

Gregory Potter

Klaus Bernreitner

Martina Sandholzer

Dietrich Gloger

Thomas Horill

Georg Grestenberger

Susanne Kahlen

Petar Emilov Doshev

Christelle Grein

Wolfgang Neissl

Michael Tranninger

Davide Tranchida

Simon Schwarzenberger

Antonios Gitsas

Franciscus Jacobs

Saeid Kheirandish

Antonis Gitsas

Matthew Parkinson

Renate Eckmayr

Andreas Hauer

Klaus Bernreiter

Simon Schwarzengerger

Astrid-Caroline Knall

Modified heterophasic composition to improve the surface appearance of automobil parts.

Heterophasic composition

The present invention relates to a new biaxially oriented polypropylene (BOPP) film, a process for the preparation of such film as well as the use of a polypropylene for the preparation of such film and an article comprising such film.

BOPP film having low shrinkage

BOPP film with improved stiffness/toughness balance

A process for the preparation of a polypropylene in a sequential polymerization process including a pre-polymerization reactor and at least two polymerization reactors connected in series. The polymerization in the at least two polymerization reactors takes place in the presence of a Ziegler-Natta catalyst. The Ziegler-Natta catalyst includes (a) a pro-catalyst that has a compound of a transition metal, a compound of a metal which metal is selected from one of the groups 1 to 3 of the periodic table (IUPAC), and an internal electron donor, (b) a co-catalyst, and (c) an external donor. The Ziegler-Natta catalyst is present in the pre-polymerization reactor. Ethylene and propylene are fed to the pre-polymerization reactor in a feed rate ratio of 0.5 to 10.0 g/kg.

Process for the preparation of polypropylene with improved productivity

High isotactic PP resin with wide melting distribution having improved BOPP film properties and easy processing characteristics

Tiger stripe modifier being a heterophasic polypropylene composition having a melt flow rate MFR(230&#xb0; C.) in the range of 0.5 to 20 g/10 min and comprises a propylene homopolymer and an elastomeric propylene copolymer, wherein said propylene homopolymer has a melt flow rate MFR(230&#xb0; C.) in the range of above 10 to 300 g/10 min; the xylene cold soluble fraction of the heterophasic polypropylene composition has an intrinsic viscosity in the range of more than 2.5 to below 11.0 dl/g; and the comonomer content of the xylene cold soluble fraction of the heterophasic polypropylene composition is in the range of 10.0 to 25.0 wt.-%; wherein further the heterophasic polypropylene composition fulfills the inequation (I) 0.3&#x2267;(0.241&#xd7;C)-(1.14&#xd7;IV) (I) wherein C is the comonomer content of the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECO1), and IV is the intrinsic viscosity of the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECO1).

Tiger stripe modifier

A process for the preparation of a polypropylene in a sequential polymerization process including at least two polymerization reactors connected in series. The polymerization takes place in the presence of a Ziegler-Natta catalyst, and said Ziegler-Natta catalyst includes (a) a pro-catalyst that has a compound of a transition metal, a compound of a metal which metal is selected from one of the groups 1 to 3 of the periodic table (IUPAC), and an internal electron donor, (b) a co-catalyst, and (c) an external donor. The ratio of catalyst feed rate to propylene feed rate in the first polymerization reactor is 1.0 to 4.5 g/t.

This invention relates to a thermoplastic polyolefin composition having a melt flow rate MFR(230&#xb0; C.) between 20 and 100 g/10 min, to the use of such thermoplastic polyolefin composition for the production of injection molded articles, e.g. automotive parts and to injection molded articles prepared by using such thermoplastic polyolefin composition.

High flow thermoplastic polyolefin with balanced mechanical performance and low shrinkage and CLTE

Heterophasic polypropylene copolymers having an MFR (2.16 kg, 230&#xb0; C.) of 15 to 200 g/10 min, determined according to ISO 1133 comprising a propylene homo- or copolymer matrix with an MFR (2.16 kg, 230&#xb0; C.) of 80 to 500 g/10 min, determined according to ISO 1133 (A) and an ethylene or C-C-alpha-olefin propylene rubber phase (B) dispersed within the matrix, wherein the heterophasic polypropylene resin has a fraction soluble in p-xylene at 25&#xb0; C. (XCS), having an intrinsic viscosity of 2.85 to 4.00 dl/g, determined according to DIN EN ISO 1628-1 and -3 and being composed of propylene monomer units in an amount of 70 wt % to 90 wt %, with optimum balance of impact resistance and low amount of hexane extractables; a process for their preparation and their use.

Propylene polymer composition having superior hexane extractables/impact balance

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Linz, Austria

Gregory Potter