Basell Poliolefine Italia S.r.l.

Baselltech USA Inc.

Basell Polyolefine Gmbh

Montech USA Inc.

Ferrari Brands S.r.l.

Paolo Ferrari

Giampaolo Pellegatti

Gabriele Mei

Anteo Pelliconi

Pietro Baita

Diego Brita

Harilaos Mavridis

Giuliano Cecchin

Roberta Pica

Maria Di Diego

Antonio Ciarrocchi

Ines Mingozzi

Lorella Pedriali

Stefano Spataro

Caroline Cathelin

Roberta Marchini

Davide Tartari

Luca Lunghi

Stefano Pasquali

Paola Sgarzi

Giovanni Galetti

A method for feeding an antistatic compound to a polymerization reactor comprising the steps of: a) dispersing, under mixing conditions, a catalyst powder and an antistatic compound in an oil, so as to form a suspension of catalyst powder and antistatic compound in said oil; b) successively adding, under mixing conditions, a molten thickening agent to said suspension from step a), while maintaining said suspension at a temperature such that said thickening agent solidifies on contact with said suspension; c) transferring the product obtained from b) to a polymerization reactor.

Method for feeding an antistatic compound to a polymerization reactor

Extruded or molded profiles comprising a polyolefin composition consisting of 85% by weight or more of a copolymer of 1-butene with ethylene (A) having an ethylene copolymerized content up to 18% by mol, and having Mw/Mn lower than 3, hardness shore A (measured according to ISO 868) lower than 90, no melting point (TmII) detectable at the DSC after cancelling the thermal history, melting enthalpy (&#x394;Hf), measured by DSC after 10 days of aging at room temperature, comprised between 4 and 15 J/g; and up to 15% by weight of a propylene copolymer or a composition of copolymers of propylene (B) having a melting point from about 126&#xb0; C. to 200&#xb0; C., isotactic index greater than 90%.

1-butene copolymers compositions for extruded profiles

A method for feeding an antistatic compound to a polymerization reactor, the method comprising the steps of: a) dispersing, under mixing conditions, a catalyst powder and an antistatic compound in a liquid medium, so as to form a suspension of the catalyst powder and of the antistatic compound in the liquid medium; b) transferring the obtained suspension to a polymerization reactor.

Crystalline polymers and copolymers of propylene having total MIL values&#x3e;2 g/10 minutes, total [&#x3b7;] values in tetrahydronaphthalene at 135&#xb0; C.&#x2266;2.8 dl/g, mW/MN values&#x3e;20, a fraction insoluble in xylene at 25&#xb0; C.&#x2267;94, and including from 10 to 60% by weight of a fraction (A) having [&#x3b7;]&#x2267;2.6, are prepared by way of sequential polymerization in at least two stages, in the presence of a particular Ziegler-Natta catalysts supported on magnesium halides. These polymers have high melt strength, high mechanical properties, and are particularly adequate for the manufacture of articles by using various conversion technologies, such as for example extrusion in thin sheets to be subjected to thermoforming, as well as for injection molding, and blow molding.

Crystalline polymers of propylene having improved processability in the molten state and process for their preparation

Crystalline polymers and copolymers of propylene having total MIL values&#x3e;2 g/10 minutes, total [&#x3b7;] values in tetrahydronaphthalene at 135&#xb0; C.&#x2266;2/8 dl/g, Mw/Mn values&#x3e;20, a fraction insoluble in xylene at 25&#xb0; C.&#x2267;94, and including from 10 to 60% by weight of a fraction (A) having [&#x3b7;]&#x2267;2.6, are prepared by way of sequential polymerization in at least two stages, in the presence of particular Ziegler-Natta catalysts supported on magnesium halides. These polymers have high melt strength, high mechanical properties, and are particularly adequate for the manufacture of articles by using various conversion technologies, such as for example extrusion in thin sheets to be subjected to thermoforming, as well as for injection molding, and blow molding.

Polyolefin compositions comprising (percent by weight) A) 60%-95% of a crystalline polypropylene component having a Melt Flow Rate (MFR ) value of from 2.5 to 50 g/10 min. and containing from 20% to 80% of a fraction A ) having MFR from 0.5 to 8 g/10 min., and from 20% to 80% of a fraction A ); B) 5%-40% of a copolymer of ethylene with one or more C -C &agr;-olefin(s) containing from 10 to 40% of said C -C &agr;-olefin(s); the ratio MFR /MFR being from 2 to 25; the percentages of A) and B) being referred to the sum of A) and B), and the percentages of A ) and A ) being referred to the sun of A ) and A ).

Impact resistant polyolefin compositions

A crystalline propylene copolymer composition having MFR L values from 2 to 15 g/10 min. and comprising (percent by weight): A) 20-80% of one or more propylene copolymers; B) 20-80% of one or more propylene copolymers with different comonomer(s) content than in A); the said MFR L values (MFR L (2)) being obtained by subjecting to degradation a precursor composition comprising the same components A) and B) in the above said proportions, but having MFR L values (MFR L (1)) from 0.3 to 5 g/10 min., with a ratio MFR L (2) to MFR L (1) of from 2 to 20.

Crystalline propylene copolymer compositions having improved sealability and optical properties and reduced solubility

A polyolefin composition comprising (percentage by weight): (A) from 40 to 60% of a broad molecular weight distribution propylene polymer (component A) having a polydispersity index from 5 to 15 and melt flow rate of from 80 to 200 g/10 min (according to ASTM-D 1238, condition L); and (B) from 40 to 60% of a partially xylene-insoluble olefin polymer rubber (component B) containing at least 65% by weight of ethylene; the IV /IV ratio between the intrinsic viscosity (IV ) of the portion soluble in xylene of the polyolefin composition at room temperature and the intrinsic viscosity (IV ) of component (A) ranging from 2 to 2.5, both values on intrinsic viscosity being measured in tetrahydronaphthalene at 135&deg; C. Said composition finds application in automotive field.

Polyolefin composition having a high balance of stiffness and impact strength

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Ferrara, Italy

Paolo Ferrari