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:
Jun. 19, 2012
Filed:
Feb. 14, 2007
William J. Brennan, Middlesborough, GB;
Stephen William Sankey, North Yorkshire, GB;
Mark Russell Hodgson, Middlesborough, GB;
William J. Brennan, Middlesborough, GB;
Stephen William Sankey, North Yorkshire, GB;
Mark Russell Hodgson, Middlesborough, GB;
DuPont Teijin Films U.S. Limited Partnership, Chester, VA (US);
Abstract
A heat-sealable, peelable, coextruded composite polymeric film comprising a substrate layer of polymeric material having on a surface thereof a heat-sealable layer, wherein said heat-sealable layer comprises a copolyester of least one aromatic dicarboxylic acid, at least one aliphatic dicarboxylic acid and one or more glycol(s); the thickness of said heat-sealable layer is in the range of from about 0.3 to about 3 μm; and the heat-sealable layer comprises one or more wax(es) is described.