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:
Aug. 19, 2003
Filed:
Sep. 05, 2001
Applicant:
Inventors:
Robert Giles Posey, Duncan, SC (US);
Charles David Carlson, Jr., Columbus, NC (US);
Jeffrey R. Rounsley, Taylors, SC (US);
Assignee:
Mitsubishi Polyester Film, LLC, Greer, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 2/708 ; B32B 2/736 ; B32B 3/114 ; B32B 3/124 ; B32B 3/130 ;
U.S. Cl.
CPC ...
B32B 2/708 ; B32B 2/736 ; B32B 3/114 ; B32B 3/124 ; B32B 3/130 ;
Abstract
The present invention provides a coated polymer film having heat seal properties. The heat seal coating includes a propylene diol copolyester. Preferably, the copolyester is formed from 1,3-propane diol, isophthalic acid and a sulfomonomer. A method of heat sealing using this coated film is also disclosed.