Basell Polyolefine Gmbh

Basell Poliolefine Italia S.r.l.

Maclovio Herrera Salinas

Gerhardus Meier

Shahram Mihan

Gerd Mannebach

Giampiero Morini

Giampaolo Pellegatti

Dieter Lilge

Bernd Lothar Marczinke

Ulf Schueller

Fabiana Fantinel

Martin Schneider

Iakovos Vittorias

Harald Schmitz

Eleonora Ciaccia

Lenka Lukesova

Diana Dotsch

Masaki Fushimi

Lenka Richter-Lukesova

Diana DÖTSCH

Shahram Mlhan

The present invention relates to catalysts systems for the polymerization of olefins CH&#x2550;CHR, wherein R is an alkyl, cycloalkyl or aryl radical having 1-12 carbon atoms, comprising (A) a solid catalyst component comprising Ti, Mg, and halogen (B) an aluminum alkyl compound and (C) a mono or dihalogenated hydrocarbon compound. Said catalyst systems have improved polymerization activity.

Catalyst system for the polymerization of olefins

A novel gas phase polymerization method is devised, for polymerization of low and ultralow density polyethylene.

Polyethylene polymerisation in gas phase reactor

A novel polymer composition is described comprising ethylene homopolymers and/or copolymers of ethylene with C-C-alpha-olefins which polymer composition has a density of from 0.940 to 0.949 g/cm3, a melt index (HLMI) according to DIN EN ISO 1133:2005, condition G at 190&#xb0; C. and 21.6 kg, of from 3 to 7 g/10 min. and a Hostalen Long Chain Branching Index (HLCBI) of from 3 to 8, and which polymer composition is produced by polymerisation with one or more Ziegler catalysts in a series of at least two polymerization reactors. The new polymer composition can in particular be used for blow moulding of intermediate bulk containers.

Polymer composition for use in blow moulding

New ethylene polymers having broad molecular weight distribution and long-chain branching, above all at high molecular weight fractions; the polymers have strain hardening equal or higher than 1.4 (at constant elongational rate of 0.5 s, at 150&#xb0; C.), branching index g' equal or lower than 0.9 (at Mw of 2&#xb7;10g/mol). The polymers are prepared by using a mixed catalyst system comprising a polymerization catalyst based on a late transition metal component having a tridentate ligand, and a Ziegler polymerization catalyst annealed at a temperature higher than 100&#xb0; C., for a time of at least 10 minutes.

Process for the polymerization of ethylene, and ethylene polymers having broad molecular weight distribution and long-chain branching

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Frankfurt-am-Main, Germany

Maclovio Herrera Salinas