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. 16, 2008
Filed:
Feb. 08, 2005
Applicants:
Myung-sup Jung, Seongnam-si, KR;
Do-yun Kim, Daejeon-si, KR;
Min-ju Jeong, Seoul, KR;
Inventors:
Assignee:
Samsung SDI Co., Ltd., Suwon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 69/26 (2006.01); C08G 73/02 (2006.01); C08G 73/10 (2006.01); C08G 73/06 (2006.01); C08G 69/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is related to a polyimide, which has high ionic conductivity and good structural stability, does not decompose even under low humidity, and is inexpensive, and a polymer electrolyte and a fuel cell using the same. In particular, the polyimide of the present invention has a repeating unit of Formula (1) below and also includes a reactive blocking group derived from a monoamine compound or monoanhydride compound having at least one carbon-carbon double bond at a terminal or at both terminals: