Patent · US Active

Moulding composition for producing bipolar plates

US7695806B2 · kind B2 · utility

0Cited by

2References

22Claims

0Family size

Assignee

Duresco GmbH · CH

Inventors

Martin Spitzer · Ehrenkirchen, DE
Philip David Willis · Bishop's Stortford, GB
Gunnar Reitmajer · Glückstadt, DE

Key dates

Filing date	Feb 26, 2007
Grant date	Apr 13, 2010
Priority date	—
Expiry date	Feb 26, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/26
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Compositions comprising (a) an epoxy resin, (b) a hardener for the epoxy resin, (c) a product of the reaction of a microgel containing carboxylic acid groups and a nitrogen-containing base, and (d) an electrically conducting filler combination comprising, based on the total amount of filler, at least 75% by weight of graphite, are particularly suitable for producing biopolar plates.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.