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:
Dec. 15, 2009
Filed:
Jul. 03, 2008
Stefan Bertil Ohlsson, Wespelaar, BE;
Bart Lauwers, Schriek, BE;
Jan C. Donck, Holsbeek, BE;
Jef Vaes, Zonhoven, BE;
Stefan Bertil Ohlsson, Wespelaar, BE;
Bart Lauwers, Schriek, BE;
Jan C. Donck, Holsbeek, BE;
Jef Vaes, Zonhoven, BE;
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
The invention relates to a polymer comprising units derived from ethylene having: a) a Melt Index of from 0.05 to 20 g/10 min; b) at least 10 per 1000 C-atoms of short chain branches, containing five carbon atoms or less, and less than 3.5 mol %, of units derived from a copolymerizable ethylenically unsaturated ester, c) a density of from 0.90 to 0.94 g/cm, preferably 0.91 to 0.935 g/cm, especially 0.92 to 0.93 g/cm, and d) a relaxation time as described herein of at least 10 s. The polymer may be used for stretch hood film, preferably as a blown film coextruded tube comprising: a) a core of the above polymer; and b) a skin layer, on each side of the core which may be of the same or different composition, comprising at least 60 wt % of an LLDPE having density of 0.91 to 0.94 g/cm.