Borealis Ag

Borealis Gmbh

Borealis Technology Oy

Pcd Polymere Ges. M.b.h.

Norbert Reichelt

Manfred Raetzsch

Achim Hesse

Hartmut Bucka

Ulf Panzer

Markus Gahleitner

Pauli Leskinen

Bo Malm

Michael Tranninger

Peter Niedersuess

Manfred Kirchberger

Anton Wolfsberger

Sybille Simon

Werner Posch

Hans-Joachim Radusch

Matthias Stolp

Jingbo Wang

Klaus Bernreitner

Katja Ellen Klimke

Carl-Gustaf Ek

Susanne Kahlen

Hermann Braun

Dietrich Gloger

Hans-Gerhard Fritz

Manfred Stadlbauer

Tung Pham

Reiner Mehnert

Bhawna Kulshreshtha

Udo Muster

Hermann Heinemann

Dirk Leistner

Andreas Fuchs

Anil Sönmez

Wolfgang Gierlinger

Paul De Mink

Uwe Bolz

Alexander Standler

Nicke Bergman

Karl Kloimstein

Max Wachholder

Gerald Rohaczek

Konrad Buehler

Gernot Baumgärtel

Gernot Baumgartel

Gahleitner Gahleitner

Sybille Frank

The present invention is related to a high melt strength polypropylene (HMS-PP) comprising units derivable from at least one polyunsaturated fatty acid, a process for preparing said high melt strength polypropylene (HMS-PP), as well as an article comprising said high melt strength polypropylene (HMS-PP).

High melt strength polypropylene

The invention relates to long-chain branched polypropylene composition (b-PPC) comprising at least one long-chain branched propylene homopolymer or copolymer (b-PP) and at least one linear propylene homopolymer or copolymer (l-PP). The long-chain branched polypropylene composition (b-PPC) being suitable for foam application.

Long-branched polypropylene composition with increased melt strength stability

The present invention is directed to a process for producing a modified olefin polymer in an extruder having a feed zone, a melting zone, optionally a mixing zone and optionally a die zone, (A) introducing a stream of an olefin polymer into the feed zone of the extruder; (B) introducing a stream of a free radical generator directly into the feed zone or the melting zone or the mixing zone, if present, of the extruder; (C) introducing a stream of a functionally unsaturated compound directly into the feed zone or the melting zone or the mixing zone, if present, of the extruder; (D) extruding the mixture in the extruder at a temperature which is greater than the decomposition temperature of the free radical generator and the melting temperature of the olefin polymer but less than the decomposition temperature of the olefin polymer thereby producing the modified olefin polymer in the extruder; and, optionally, (G) passing the melt of the modified olefin polymer through the die zone to a pelletiser.

Process for producing modified olefin polymer in an extruder

The invention relates to an adhesive composition wherein such composition comprises at least one polypropylene copolymer and wherein such adhesive composition has improved overall bond performance. It further relates to an article comprising said adhesive composition, as well as to a process for producing such article. It even further relates to the use of the adhesive composition in the preparation of an article.

Polypropylene based hot-melt adhesive composition

Heterophasic polypropylene composition comprising

Heterophasic polypropylene copolymer composition

Heterophasic polypropylene composition comprising (A) 45 to 70 wt % of a propylene homo- or copolymer matrix with an MFRin accordance with ISO 1133 (230&#xb0; C., 2.16 kg load) of &#x2267;80 g/10 min and (B) 25 to 40 wt % of an elastomeric propylene-ethylene copolymer, having an intrinsic viscosity IV (ISO 1628, with decalin as solvent) of &#x2267;3.3 dl/g and an ethylene content of 20 to 50 wt %, (C) 0-15 wt % of an elastomeric ethylene/alpha-olefin random copolymer (D) 3-25 parts per weight of inorganic filler, the heterophasic polypropylene compositions having a total MFR(230&#xb0; C./2.16 kg) in accordance with ISO 1133 of &#x2267;5 g/10 min, a Charpy notched impact strength according to ISO 179/1eA at +23&#xb0; C. of &#x2267;15.0 kJ/m2, preferably &#x2267;25.0 kJ/m, a minimum value for the Charpy notched impact strength according to ISO 179/1eA at &#x2212;200 C of &#x2267;7.0 kJ/m2, preferably &#x2267;10.0 kJ/mand a tensile modulus according to ISO 527-3 of &#x2267;1200 MPa; their preparation and use for producing injection molded articles being free of flow marks.

The invention relates to a polypropylene composition a heterophasic propylene copolymer, an elastomeric copolymer and inorganic filler and to a method for producing the propylene composition using peroxides. The composition is characterised by a combination of excellent impact strength, stiffness, elasticity and surface stability.

Modified polypropylene composition

Use of modified olefin polymers for production of polyolefin products with improved toughness, strength and heat resistance. Polyolefin products with high requirements for toughness, strength and heat resistance, produced from modified olefin polymers based on modified propylene polymers which have been modified by reaction with bifunctional monomers in the presence of free-radical generators in the solid phase. The polyolefin products are particularly suitable for shock-absorbing components of motor vehicles, such as bumpers, spoilers and side edge protection elements.

Use of modified olefin polymers for producing polyolefin products with improved toughness, strength and heat resistance

Polyolefin fibers and polyolefin yarns of high strength and elongation and textile fabrics produced therefrom, which consist of modified propylene polymers, unmodified propylene polymers and adjuvants, are produced by melting the polyolefin mixtures in the extruder, transferring the melt by extrusion pumps to the spinnerets and drawing off the extruded filaments by high-speed galettes and/or winders.

Process of making polyolefin fibers

Modified polypropylenes of improved processability

Structurally isomeric poly(alkyl ethylenes) with H and Y structures, polymeric bridging segments and a Y index of 2&times;10 to 8&times;10 (kJ/mole/degree), have decreased instability in the melt and more advantageous processing properties. The structurally isomeric poly(alkyl ethylenes) with H and Y structures are synthesized by an irradiating method, a melt reaction method or a solid phase reaction method by reacting poly(alkyl ethylenes) with 0.05 to 5% by weight of monofunctional, difunctional and polyfunctional monomers, optionally in the presence of peroxides. The structurally isomeric poly(alkyl ethylenes) are suitable for producing films, sheets, panels, coatings, pipes, hollow objects and foams.

Structural isomers of poly (alkyl ethylenes)

Heterophasic polyolefin alloy

Thermoplastic elastomers of good dyeability and high strength and elasticity, the incorporated elastomeric particles of which have and average particle diameter of 0.05 to 5 &mgr;m. The thermoplastic elastomers are formed according to a method in which mixtures of propylene homopolymers and/or propylene copolymers, elastomeric C,C,olefin copolymers and/or terpolymers and C,to C,diacrylates, C,to C,diallyl compounds, C,to C,dimethacrylates, C,to C,divinyl compounds, C,to C,acrylate esters of polyalcohols, C,to C,methacrylate esters of polyalcohols and/or C,C,triallyl compounds are added to a melt. The thermoplastic elastomers, as well as mixtures of the thermoplastic elastomers with conventional polyolefins, are suitable for use in the vehicle industry, in the domestic appliances industry, in the construction industry and in medical technology.

Thermoplastic elastomers of good dyeability and high strength and elasticity as well as impact-resistant polymer blends produced therefrom

Thermoplastic elastomers of high strength, high elasticity and good dyeability, the incorporated elastomeric particles of which have an average particle diameter of 0.05 to 5 &mgr;m, from propylene homopolymers and/or propylene copolymers, elastomeric C,to C,olefin copolymers and/or terpolymers and multifunctional, unsaturated monomers are formed by a method, for which mixtures of propylene homopolymers and/or propylene copolymers, elastomeric C,to C,olefin copolymers and/or terpolymers and readily volatile C,to C,dienes are reacted in the melt. The thermoplastic elastomers, as well as mixtures with conventional polyolefins, are suitable for use in the vehicle industry, in the domestic appliances industry, in the building sector and in medical technology.

Thermoplastic elastomers of high strength and elasticity and of good dyeability and polymer blends of high strength produced therefrom

Polyolefin foam materials of high dimensional stability at elevated temperatures are produced from modified polypropylenes and unmodified polypropylenes. The modified polypropylenes used are produced by mixing polypropylene particles with thermally decomposing free radical-forming agents, absorbing readily volatile bifunctional monomers and heating and melting the mixture. Areas of application for the polyolefin foam materials of high dimensional stability at elevated temperatures are the packaging sector, motor vehicle parts, sports and leisure equipment, industrial applications, as well as applications in the building sector.

Polyolefin foam materials of high dimensional stability at elevated temperatures

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Neuhofen, Austria

Norbert Reichelt