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. 29, 2013
Filed:
Dec. 08, 2008
Mats Backman, Göteborg, SE;
Martin Anker, Hisings Kärre, SE;
Siw Bodil Fredriksen, Skien, NO;
Leif Leiden, Andersböle, FI;
Markku Vahteri, Porvoo, FI;
Petri Rekonen, Porvoo, FI;
Mats Backman, Göteborg, SE;
Martin Anker, Hisings Kärre, SE;
Siw Bodil Fredriksen, Skien, NO;
Leif Leiden, Andersböle, FI;
Markku Vahteri, Porvoo, FI;
Petri Rekonen, Porvoo, FI;
Borealis Technology OY, Porvoo, FI;
Abstract
Coated pipes have a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFRof from 0.05 g/10 min to 5 g/10 min, a melt index MFRof from 0.5 to 10 g/10 min and a density of from 930 kg/mto 955 kg/m.