The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 19, 2010
Filed:
Jul. 23, 2003
Ulrich Clemens Dahn, München, DE;
Wolfgang Bidell, Rhode-St-Genese-Brussels, BE;
Hans-jürgen Zimmermann, Bensheim, DE;
Joachim Roesch, Ludwigshafen, DE;
Guenther Schweier, Friedelsheim, DE;
Ulrich Clemens Dahn, München, DE;
Wolfgang Bidell, Rhode-St-Genese-Brussels, BE;
Hans-Jürgen Zimmermann, Bensheim, DE;
Joachim Roesch, Ludwigshafen, DE;
Guenther Schweier, Friedelsheim, DE;
Basell Poliolifine Italia s.r.l., Milan, IT;
Abstract
The present invention relates to a process for preparing propylene polymer compositions in at least two-stage process wherein, in a first stage, a propylene homopolymer or a propylene copolymer comprising propylene and at least a CZ-CIO-1-alkenes other than propylene, containing at least 85% by weight of propylene, is prepared by polymerization and, in a second stage, ethylene and at least a comonomer selected from propylene and C4-C,o1alkenes are polymerized to give an ethylene polymer, comprising at least 90% by weight of ethylene, wherein the amount of the ethylene polymer in the propylene polymer composition ranges from 10 to 50% by weight and the propylene polymer composition has a melt flow rate MFR, in accordance with ISO 1133 at 230° C. and 2.16 kg, of from 2 to 50 g/10 min.