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:
Mar. 11, 2008
Filed:
Dec. 13, 2000
Jörg Schottek, Frankfurt, DE;
Markus Oberhoff, Speyer, DE;
Carsten Bingel, Kriftel, DE;
David Fischer, Breunigweiler, DE;
Horst Weiβ, Neuhofen, DE;
Andreas Winter, Neuleiningen, DE;
Volker Fraaije, Frankfurt, DE;
Ralph-dieter Maier, Hoergertshausen, DE;
Wolfgang Bidell, Mannheim, DE;
Nicola Paczkowski, Loveland, OH (US);
Jürgen Suhm, Worms-Weinsheim, DE;
Roland Kratzer, Hofheim, DE;
Jörg Schottek, Frankfurt, DE;
Markus Oberhoff, Speyer, DE;
Carsten Bingel, Kriftel, DE;
David Fischer, Breunigweiler, DE;
Horst Weiβ, Neuhofen, DE;
Andreas Winter, Neuleiningen, DE;
Volker Fraaije, Frankfurt, DE;
Ralph-Dieter Maier, Hoergertshausen, DE;
Wolfgang Bidell, Mannheim, DE;
Nicola Paczkowski, Loveland, OH (US);
Jürgen Suhm, Worms-Weinsheim, DE;
Roland Kratzer, Hofheim, DE;
Basell Polyolefine GmbH, Wesseling, DE;
Abstract
A process for the polymerization of olefins, in particular a process for the copolymerization of propylene with further olefins, is carried out in the presence of highly active catalyst systems comprising specifically selected metallocenes, in particular ones which bear different substituents in position 2 and position 4 on an indenyl ligand. Novel polypropylene copolymers can be obtained by this process.