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AssigneesToyoba Co., Ltd., Toagosei Co., Ltd., Toyota Jidosha Kabushiki Kaisha
InventorsShinya Watanabe, Ai Koganemaru, Hisao Okumura, Tomoya Sugiki, Takahiro Ito, Makoto Imahori, Yusuke Shimmyo, Kenji Sato, Takuya Kurihara
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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%.
An assembly for fuel cell comprising:
An assembly for fuel cell comprising:
A bonding method comprising bonding (a) a laminated body including 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, and 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 to (b) a metal member of a fuel cell in a state where the metal member faces the adhesive resin layer of the laminated body, wherein the metal member has a ratio of a dipole term in surface free energy of 0.01% to 5.0%, and wherein a relationship between the surface free energy γM of the metal member and surface free energy γA of the adhesive resin layer satisfies γM−γA≥5.0 mN/m.
Dependencies are inferred from the claim text.