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:
Dec. 31, 2024
Filed:
Mar. 28, 2019
Applicant:
Mylar Specialty Films U.s. Limited Partnership, Chester, VA (US);
Inventors:
Stephen Jones, Wilton, GB;
Stephen Sankey, Wilton, GB;
Lucien Schosseler, Luxembourg, LU;
Megan Meaburn, Wilton, GB;
David Turner, Wilton, GB;
Assignee:
Mylar Specialty Films U.S. Limited Partnership, Chester, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 63/68 (2006.01); C08G 63/672 (2006.01); C08J 5/22 (2006.01); C08K 5/098 (2006.01); H01M 10/0525 (2010.01); H01M 10/056 (2010.01); H01M 50/414 (2021.01); H01M 50/446 (2021.01);
U.S. Cl.
CPC ...
C08G 63/681 (2013.01); C08G 63/672 (2013.01); C08J 5/2256 (2013.01); C08K 5/098 (2013.01); H01M 10/0525 (2013.01); H01M 10/056 (2013.01); H01M 50/414 (2021.01); H01M 50/446 (2021.01); C08J 2367/02 (2013.01); C08J 2371/02 (2013.01); H01M 2300/0082 (2013.01); H01M 2300/0091 (2013.01);
Abstract
An optionally oriented copolyester film comprising a copolyester which comprises repeating units derived from an aliphatic diol, an aromatic dicarboxylic acid and a poly(alkylene oxide), wherein the copolyester film further comprises lithium ions, and wherein the film has a thickness of no more than about 25 μm. The copolyester film is suitable for use a separator in a lithium-ion rechargeable battery.