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:
Sep. 07, 1999
Filed:
Jul. 17, 1997
Joseph H Groeger, Storrs, CT (US);
Reynolds Metals Company, Richmond, VA (US);
Abstract
In order to form a plastic wrap which exhibits little or no cling until such time as the wrap is applied to an article or the like, the adhesive layer, which is formed on one side of a sheet of olefinic polymer, is exposed to a treatment which superficially oxidizes or cross-links the outer layer of adhesive material to form a film which exhibits greatly attenuated adhesion. This film is disruptable as the wrap is applied and is stretched and or deformed in a manner which uncovers the adhesive material and endows cling properties on at least localized areas of the wrap. Techniques for treating the adhesive layer include UV irradiation, exposure to corona and ozonification.