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:
Jul. 09, 2002
Filed:
Aug. 17, 1998
David Charles Climenhage, Orono, CA;
Anthony Chow, Scarborough, CA;
DuPont Canada Inc., Mississauga, US;
Abstract
A pouch for containing a flowable material, said pouch being made from a film in tubular form and having transversely heat-sealed ends, said film being made from at least one layer of a material comprising about 50 to about 100 parts by weight of a hybrid interpolymer of ethylene and a C -C alpha-olefin made by a polymerization process using both a metallocene catalyst and a Zeigler-Natta catalyst, the hybrid interpolymer having a density of from about 0.910 to about 0.940 g/cm , a melt index of from about 0.1 to about 2.0 dg/min, and a melt strength of greater than about 3.5 Centi Newtons as determined using a Goettfert Rheotens unit at 190° C. and from 0 to about 50 parts by weight of a high-pressure polyethylene having a density of from about 0.916 to about 0.924 g/cm and a melt index of from about 0.01 to about 10 dg/min. Also described is a process for making such pouches.