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:
Apr. 09, 2013
Filed:
Jan. 11, 2006
Applicants:
Stephen William Sankey, North Yorkshire, GB;
Dominic Hoy, Teesside, GB;
David Turner, Newcastle Upon Tyne, GB;
Inventors:
Stephen William Sankey, North Yorkshire, GB;
Dominic Hoy, Teesside, GB;
David Turner, Newcastle Upon Tyne, GB;
Assignee:
DuPont Teijin Films U.S. Limited Partnership, Chester, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/36 (2006.01); B65D 85/50 (2006.01); B65D 85/52 (2006.01);
U.S. Cl.
CPC ...
Abstract
A breathable, heat-sealable composite film comprising first and second layers of polymeric material wherein (i) the polymeric material of the first layer comprises copolyester comprising monomeric units derived from one or more diol(s); one or more dicarboxylic acid(s); and one or more poly(alkylene oxide) glycol(s); and (ii) the second layer is a heat-sealable polymeric layer, and a process for the production thereof.