LAMINATED FILM AND METHOD FOR PRODUCING THE SAME AND METHOD FOR MANUFACTURING FUEL BATTERY
To provide a laminated film which is strongly bonded to a base material and can be smoothly released from an ion exchange resin-containing layer as a transfer medium without using a component with a large environmental load even when a release layer is formed of a cyclic olefin-based resin.SOLUTION:...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a laminated film which is strongly bonded to a base material and can be smoothly released from an ion exchange resin-containing layer as a transfer medium without using a component with a large environmental load even when a release layer is formed of a cyclic olefin-based resin.SOLUTION: A release film is prepared by laminating a base material layer, a first layer containing an acid-modified olefin-based resin, a second layer containing a cyclic olefin-based resin, and an ion exchange resin-containing layer containing an ion exchange resin in this order. The second layer and the first layer may be layers formed by coating. An average thickness of the second layer may be 30 μm or less. A membrane-electrode assembly of a solid polymer type fuel battery may be manufactured by releasing a layer other than the ion exchange resin-containing layer from the laminated film.SELECTED DRAWING: None
【課題】離型層が環状オレフィン系樹脂で形成されていても、環境的な負荷の大きい成分を用いることなく、基材とは強固に密着し、かつ転写媒体としてのイオン交換樹脂含有層と円滑に離型できる積層フィルムを提供する。【解決手段】基材層と、酸変性オレフィン系樹脂を含む第一層と、環状オレフィン系樹脂を含む第二層と、イオン交換樹脂を含むイオン交換樹脂含有層とをこの順序で積層して積層フィルムを調製する。第二層および第一層は、いずれもコーティングによって形成される層であってもよい。前記第二層の平均厚みは30μm以下であってもよい。前記積層フィルムからイオン交換樹脂含有層以外の層を剥離して固体高分子型燃料電池の膜電極接合体を製造してもよい。【選択図】なし |
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