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. 08, 2009
Filed:
Sep. 22, 2003
Christof Mehler, Dossenheim, DE;
Martin Weber, Maikammer, DE;
Michael Senge, Weisenheim, DE;
Thomas Keβler, Schifferstadt, DE;
Ingolf Hennig, Neuluβheim, DE;
Christof Mehler, Dossenheim, DE;
Martin Weber, Maikammer, DE;
Michael Senge, Weisenheim, DE;
Thomas Keβler, Schifferstadt, DE;
Ingolf Hennig, Neuluβheim, DE;
BASF Future Business GmbH, Ludwigshafen, DE;
Abstract
The bipolar plate for PEM fuel cells made of a polymer blend which is filled with conductivity-enhancing carbon fillers and which includes at least two mutually nonmiscible blend polymers, is distinguished by the fact that the at least two blend polymers form a co-continuous structure and the carbon fillers are at a higher concentration in one of the blend polymers or in the phase between the blend polymers, or that a blend polymer in which the carbon fillers are at a higher concentration forms a continuously conductive matrix in which the at least one further blend polymer is intercalated.