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. 07, 1999
Filed:
Mar. 12, 1996
Applicant:
Inventor:
George Eichbauer, Fairport, NY (US);
Assignee:
Tenneco Packaging, Evanston, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428343 ; 428354 ; 428355 ; 428515 ; 428516 ; 52399 ;
Abstract
The present invention provides for improved polyolefin stretch wrap films having superior cling force, load retention, tear resistance and puncture resistance properties and for the methods of using those stretch wrap films. The stretch wrap films generally have a thickness of from about 0.4 to about 3 mils, a cling force onto itself of at least 140 g/inch, an F-50 dart drop strength of at least about 150 g/mil. The stretch wrap films are constructed in a multilayer fashion having at least one outside cling polyethylene copolymer layer containing a polyethylene resin preferably produced through metallocene catalyst technology.