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:
Jun. 20, 2005
Applicants:
Ho Sub Lee, Daejeon, KR;
Jeong Heon Kim, Yuseong-gu, KR;
Inventors:
Ho Sub Lee, Daejeon, KR;
Jeong Heon Kim, Yuseong-gu, KR;
Assignee:
Hankook Tire Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/00 (2006.01); H01M 8/02 (2006.01); B32B 27/04 (2006.01); B32B 27/20 (2006.01); B32B 27/38 (2006.01); C08L 63/00 (2006.01); C08K 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein is a method for preparing a molding material for a fuel cell separator by dissolving an epoxy resin, a hardener and other additives in acetone and mixing a planar expanded graphite powder with the solution. Further disclosed are a molding material prepared by the method and a fuel cell separator produced from the molding material. The fuel cell separator shows very low gas permeability, superior electrical conductivity, sufficient strength, and maximized uniformity throughout the overall structure of the finished product.