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. 21, 2011
Filed:
Nov. 21, 2006
Applicants:
Jae-jun Lee, Suwon-si, KR;
Do-yun Kim, Seongnam-si, KR;
Sang-kook Mah, Seoul, KR;
Inventors:
Assignee:
Samsung SDI Co., Ltd, Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 75/24 (2006.01); C08L 81/08 (2006.01); C08G 14/00 (2006.01); C08G 14/04 (2006.01); H01M 4/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sulfonated copolymer including a crosslinking functional group and a fuel cell including a polymeric composition of the same are provided. The sulfonated copolymer including a crosslinking functional group can remarkably reduce methanol crossover and maintain superior dimensional stability and ionic conductivity by reducing swelling.