Patent · US Expired

Shrink film

US7517941B2 · kind B2 · utility

2Cited by

3References

22Claims

0Family size

Assignee

Borealis Technology Oy · FI

Inventors

Ole Jan Myhre · Stathelle, NO
Merete Skar · Stathelle, NO
Hans Georg Daviknes · Stathelle, NO
Kjetil Borve · Odda, NO
Geir Morten Johansen · Stathelle, NO

Key dates

Filing date	Jul 29, 2003
Grant date	Apr 14, 2009
Priority date	—
Expiry date	Jul 29, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31855
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A shrink film comprising a polyethylene film of thickness 5 to 500 μm, wherein the polyethylene comprises an ethylene homopolymer-copolymer mixture having a molecular weight distribution in the range of 5 to 40, and a weight average molecular weight of at least 100 kD.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.