US 2019/0245218 A1 · RESIN COMPOSITION FOR DENSE FUEL CELL SEPARATORS

Abstract

The present invention is a resin composition for dense fuel cell separators, which contains a graphite powder and an epoxy resin component that contains a base material, a curing agent and a curing accelerator, and wherein: the graphite powder has a spring back of 20-70% and an average particle diameter d50 of 30-100 μm; and the curing accelerator is an imidazole compound that has an aryl group in the 2-position. This resin composition for dense fuel cell separators enables the achievement of a dense separator for fuel cells, which satisfies a predetermined performance even in cases where the separator is compression molded in a short time that is less than 10 seconds.

Claims10

Dependent claims

A resin composition for a dense fuel cell separator, comprising graphite powder and an epoxy resin component that includes a base resin, a curing agent and a curing accelerator,

wherein the graphite powder has a springback of between 20 and 70% and an average particle size d50 of from 30 to 100 μm, and
the curing accelerator is an imidazole compound having an aryl group at the 2 position.

Dependencies are inferred from the claim text.

Facts

Application

16/340,479Filed 21 Sep 2017

Priority

JP 2016-20259814 Oct 2016

Published

8 Aug 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification17 codes

H01M 8/0226
Composites: in the form of mixtures
C08K 3/04
Elements: carbon
C08K 5/3445
Having two nitrogen atoms in the ring: five-membered rings
C08L 61/06
Condensation polymers of aldehydes or ketones with phenols only: of aldehydes with phenols

Resin composition for dense fuel cell separators

Life of this patent

Resin composition for dense fuel cell separators

Life of this patent

Abstract

Claims10