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. 17, 2009
Filed:
Jul. 29, 2003
Ole Jan Myhre, Stathelle, NO;
Merete Skar, Stathelle, NO;
Hans Georg Daviknes, Stathelle, NO;
Kjetil Larsen Brove, Stathelle, NO;
Geir Morten Johansen, Stathelle, NO;
Ole Jan Myhre, Stathelle, NO;
Merete Skar, Stathelle, NO;
Hans Georg Daviknes, Stathelle, NO;
Kjetil Larsen Brove, Stathelle, NO;
Geir Morten Johansen, Stathelle, NO;
Borealis Technology Oy, Porvoo, FI;
Abstract
A shrink film comprising a polyethylene film, characterized in that said polyethylene is an ethylene copolymer mixture having a molecular weight distribution in the range 10 to 35, a density of 915 to 940 kg/m, a weight average molecular weight of at least 100000 D and an MFR(190° C.) of 0.1 to 0.9 kg/m, which copolymer mixture is produced by a two or more stage copolymerization of ethylene and 2 to 10% mole (relative to ethylene) of a Calpha-olefin comonomer in a series of reactors including at least one slurry loop reactor and at least one gas phase reactor using a heterogeneous Ziegler-Natta catalyst.