Daicel Corporation

Daicel Value Coating Ltd.

Ken Suzuki

Takayuki Yaegashi

Katsuhiko Sumita

Yoshimichi Okano

Kanae Nishimura

Kazuyuki Okada

Hiroshi Onomichi

A release layer of a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell comprises a cyclic olefin polymer comprising an olefin unit having a Calkyl group as a side chain thereof. The release layer may have a glass transition temperature of about 210 to 350&#xb0; C. The release layer may have a transition point of a dynamic storage modulus E' in a range from &#x2212;50 to 100&#xb0; C. An ion exchange layer comprising an ion exchange polymer may be laminated on the release layer of the release film by a roll-to-roll processing to produce a laminate. The release film may be separated from the laminate to give the membrane electrode assembly. The release film achieves improved production of a membrane electrode assembly (an electrolyte membrane and/or an electrode membrane) of a polymer electrolyte fuel cell.

Release film, laminate and method for manufacturing same, and method for manufacturing fuel cell

Growing community of inventors

Fuji, Japan

Ken Suzuki