Toyobo Co., Ltd.

Toagosei Company, Ltd.

Toyoba Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Ai Koganemaru

Hisao Okumura

Tomoya Sugiki

Shinya Watanabe

Takahiro Ito

Yoshitaka Tanaka

Shigeyuki Watanabe

Mitsuo Tojo

Makoto Imahori

Yusuke Shimmyo

Tomoka Yoshimura

Kenji Sato

Takuya Kurihara

Masahiro Kuragaki

The invention provides an assembly for fuel cell which has an excellent adhesive force in the presence of hot water, and a laminated body which is used for the assembly for fuel cell. The assembly for fuel cell comprises an adhesive resin layer containing a polyolefin having at least one group selected from the group consisting of an acidic group and an acid anhydride group and having an acid value of 0.01 mgKOH/g to 6.5 mgKOH/g; and two or more members bonded with the adhesive resin layer interposed therebetween, wherein at least one of the members is a metal member having a ratio of a dipole term in surface free energy of 0.01% to 5.0%.

Assembly for fuel cell, and laminated body

The invention provides a laminated body for fuel cell having an outer peripheral shape corresponding to an outer peripheral shape of a fuel battery cell and including a resin substrate film and a heat seal layer disposed on each of both surfaces of the resin substrate film, wherein the resin substrate film has a storage elastic modulus of 2,000-8000 MPa, an average thickness of 30-300 μm, a maximum value T1and a minimum value T1of a thickness of the resin substrate film that satisfies the relationship of T1−T1≤12 μm, and a maximum value T2and a minimum value T2of an average value of thicknesses of the resin substrate film that satisfies the relationship of T2−T2≤6 μm, and wherein the heat seal layer has an average thickness of 25-100 μm.

Laminated body for fuel cell

The invention provides a laminated body having an excellent adhesive force with respect to a low-polarity metal member in the presence of hot water. The laminated body contains a resin substrate; an easily adhesive layer provided on at least one surface of the resin substrate; and an adhesive resin layer provided on a surface of the easily adhesive layer on a side opposite to the resin substrate, wherein the adhesive resin layer contains a polyolefin having at least one group selected from the group consisting of an acidic group and an acid anhydride group and having an acid value of 0.01 mgKOH/g to 6.5 mgKOH/g; and the laminated body is used for bonding a metal member having a ratio of a dipole term in surface free energy of 0.01% to 5.0%.

Laminated body

A laminate having an easy-to-adhere layer on at least one face of a resin substrate film, and having a heat seal layer on a face, of at least one of the easy-to-adhere layer(s), which is on a side opposite the resin substrate film, wherein the resin substrate film has a glass transition temperature of not less than 90&#xb0; C.; the easy-to-adhere layer is formed from easy-to-adhere agent containing 100 parts by weight of acrylic polymer resin and 3-40 parts by weight of crosslinking agent; the acrylic polymer resin has methylol groups in an amount of 7-20 mol % of all monomer units that make up this polymer; the crosslinking agent is at least one crosslinking agent selected from oxazoline-type crosslinking agents and glycidylamine-type crosslinking agents; and the heat seal layer is a polyolefin-type heat seal layer with a thickness of less than 300 &#x3bc;m.

Laminate

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Otsu, Japan

Ai Koganemaru