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:
Jan. 20, 2015
Filed:
Mar. 18, 2013
Applicant:
Dupont Teijin Films U.s. Limited Partnership, Chester, VA (US);
Inventors:
Stephen William Sankey, North Yorkshire, GB;
Dominic Hoy, Middlesbrough, GB;
David Turner, Middlesbrough, 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); C08G 63/02 (2006.01); C08G 63/12 (2006.01); C08G 63/123 (2006.01); C08G 63/127 (2006.01); C08G 63/16 (2006.01); C08G 63/18 (2006.01); C08G 63/181 (2006.01); C08G 63/183 (2006.01); C08G 63/688 (2006.01); C08G 63/40 (2006.01); C08G 63/672 (2006.01); A47G 7/08 (2006.01); B29C 47/00 (2006.01); B29C 47/06 (2006.01); B65D 43/00 (2006.01); C09J 7/02 (2006.01); B29C 47/88 (2006.01); B29K 67/00 (2006.01);
U.S. Cl.
CPC ...
A47G 7/085 (2013.01); B29C 47/0026 (2013.01); B29C 47/06 (2013.01); B29B 27/08 (2013.01); B29B 27/36 (2013.01); B65D 43/00 (2013.01); C09J 7/0242 (2013.01); B29C 47/0021 (2013.01); B29C 47/8845 (2013.01); B29K 2067/00 (2013.01); B32B 2250/02 (2013.01); B32B 2250/244 (2013.01); B32B 2307/31 (2013.01); B32B 2307/412 (2013.01); B32B 2307/724 (2013.01); B32B 2553/00 (2013.01); C08G 63/672 (2013.01); C08G 63/6886 (2013.01);
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.