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:
Jan. 03, 2012
Filed:
Sep. 28, 2007
Mats Bäckman, Göteborg, SE;
Lars-erik Ahlstrand, Ucklum, SE;
Per-ola Hagstrand, Stenungsund, SE;
Magnus Palmlof, Västra Frölunda, SE;
Mats Bäckman, Göteborg, SE;
Lars-Erik Ahlstrand, Ucklum, SE;
Per-Ola Hagstrand, Stenungsund, SE;
Magnus Palmlof, Västra Frölunda, SE;
Borealis Technology OY, Porvoo, FI;
Abstract
The present invention relates to a polyethylene composition comprising a base resin which comprises (a) an ethylene homo- or copolymer fraction (A); and (b) an ethylene homo- or copolymer fraction (B), wherein (i) fraction (A) has a lower weight average molecular weight than fraction (B); (ii) the base resin has a density of 932 to 938 kg/m; (iii) the polyethylene composition has an MFRof 0.1 to 0.6 g/10 min; and (iv) the polyethylene composition has a shear stress η2.7 kPa of 85 to 230 kPas. Furthermore, the present invention relates to an article, preferably a pipe comprising said composition and to the use of said composition for the production of an article, preferably a pipe.