# US 2014/0193744 A1 · Heat-curable resin composition, production method of cured article and molded article of the same, cured article, molded article, and separator for a fuel cell

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- Number: US 2014/0193744 A1
- Document ID: US20140193744A1
- Status: Published application
- Kind: A1
- Application number: 14/240,792
- Filed: 2012-08-22
- Published: 2014-07-10
- Earliest claimed: 2011-08-31
- Assignees: Showa Denko K.K.
- Applicants: Showa Denko K.K.
- Inventors: Yoji Akinaga; Masayuki Noguchi; Zenichiro Izumi
- Web page: https://patentgrep.com/patent/US20140193744A1

## CPC

- H01M 8/0221: Organic resins; Organic polymers
- C08K 5/14: Peroxides
- C08K 5/40: Thiurams, {i.e. compounds containing[IMAGE cpc-sch-C08K-1011.gif] groups}
- H01M 8/0213: Gas-impermeable carbon-containing materials
- H01M 8/0226: in the form of mixtures
- H01M 8/0239: Organic resins; Organic polymers
- Y02E 60/50: Fuel cells
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

Provided are a heat-curable resin composition that yields a molded article having excellent dimensional accuracy and mechanical property even when high-temperature molding is carried out, a production method of article and a molded article thereof, a cured article, a molded article, and a separator for a fuel cell. A heat-curable resin composition in an embodiment of the present invention comprises: (A) a binder in an amount of 100 parts by mass comprising 50 mass % or more of a polymer comprising 60 mol % or more monomer units having a carbon-carbon double bond in a side chain; (B) a carbon material in an amount of 150 to 1,000 parts by mass; (C) a curing initiator in an amount of 1 to 10 parts by mass; and (D) a curing retarder in an amount of 0.1 to 2 parts by mass.

## Claims

### Claim 1

A heat-curable resin composition comprising:
(A) a binder in an amount of 100 parts by mass comprising 50 mass % or more of a polymer comprising 60 mol % or more monomer units having a carbon-carbon double bond in a side chain;
(B) a carbon material in an amount of 150 to 1,000 parts by mass;
(C) a curing initiator in an amount of 1 to 10 parts by mass; and
(D) a curing retarder in an amount of 0.1 to 2 parts by mass.

### Claim 2 (depends on 1)

The heat-curable resin composition according to claim 1, wherein (D) the curing retarder is tetrakiss(2-ethylhexyl)thiuram disulfide.

### Claim 3 (depends on 1)

The heat-curable resin composition according to claim 1, wherein the polymer in (A) the binder is a hydrocarbon.

### Claim 4 (depends on 1)

The heat-curable resin composition according to claim 1, further comprising 5 to 40 mass % of thermoplastic elastomer in (A) the binder.

### Claim 5 (depends on 1)

A cured article provided by curing the heat-curable resin composition according to claim 1.

### Claim 6 (depends on 1)

A production method of a cured article comprising curing the heat-curable resin composition according to claim 1 at 200° C. to 300° C. for 90 seconds or less.

### Claim 7 (depends on 1)

A molded article provided by forming the heat-curable resin composition according to claim 1 into a desired shape and curing the formed heat-curable resin composition.

### Claim 8 (depends on 1)

A production method of a molded article comprising forming the heat-curable resin composition according to claim 1 into a desired shape and curing the formed heat-curable resin composition at 200° C. to 300° C. for 90 seconds or less.

### Claim 9 (depends on 7)

A separator for a fuel cell the molded article according to claim 7.