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:
Nov. 19, 2013
Filed:
Jul. 16, 2004
Stephen William Sankey, Great Smeaton, GB;
Ken Evans, Yarm, GB;
Pierre G. O. Moussalli, Yarm, GB;
Stephen Keith Franzyshen, Richmond, VA (US);
David Voisin, Midlothian, VA (US);
Stephen William Sankey, Great Smeaton, GB;
Ken Evans, Yarm, GB;
Pierre G. O. Moussalli, Yarm, GB;
Stephen Keith Franzyshen, Richmond, VA (US);
David Voisin, Midlothian, VA (US);
DuPont Teijin Films U.S. Limited Partnership, Chester, VA (US);
Abstract
A breathable, heat-sealable, composite film comprising a perforated polymeric substrate layer having a first and second surface and disposed on a surface of the substrate layer an unperforated barrier layer wherein: (i) the thickness of the unperforated barrier layer is no more than about 12 pm; and (ii) the perforated substrate layer has a degree of perforation of from about 0.1 to about 78%, wherein the perforations have an average diameter of between 0.05 and 1.5 mm; and a process for the production thereof, suitable for use in the packaging of freshly cut plants such as flowers, vegetables, fruits and salads.