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:
Jun. 09, 2015
Filed:
Aug. 17, 2006
Joachim Berthold, Kelkheim, DE;
Hansjörg Nitz, Frankfurt, DE;
Werner Rothhöft, Liederbach, DE;
Heinz Vogt, Frankfurt, DE;
Joachim Berthold, Kelkheim, DE;
Hansjörg Nitz, Frankfurt, DE;
Werner Rothhöft, Liederbach, DE;
Heinz Vogt, Frankfurt, DE;
Basell Polyolefine GmbH, Wesseling, DE;
Abstract
A polyethylene molding composition having a multimodal molecular mass distribution and comprising from 45 to 55% by weight of a low molecular weight ethylene homopolymer A, from 20 to 40% by weight of a high molecular weight copolymer B comprising ethylene and another olefin having from 4 to 8 carbon atoms and from 15 to 30% by weight of an ultrahigh molecular weight ethylene copolymer C can be prepared in the presence of a Ziegler catalyst in a three-stage process and is highly suitable for producing pipes having excellent mechanical properties.