FLUORINE-BASED RESIN FILM AND METHOD FOR PRODUCING THE SAME

To improve its ultraviolet screening property using a polyvinylidene fluoride resin film excellent in weather resistance and developability.SOLUTION: A polyvinylidene fluoride resin, an acrylic resin and an ultraviolet absorber are contained, a ratio of the acrylic resin is set at 5-30 mass%, and th...

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Hauptverfasser: FUKUHARA NOBUHIKO, KIKUCHI YUKI, TANABE JUNYA
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To improve its ultraviolet screening property using a polyvinylidene fluoride resin film excellent in weather resistance and developability.SOLUTION: A polyvinylidene fluoride resin, an acrylic resin and an ultraviolet absorber are contained, a ratio of the acrylic resin is set at 5-30 mass%, and the ultraviolet absorber is composed of a triazine-based ultraviolet absorber. The polyvinylidene fluoride resin is used, so weather resistance and developability are excellent, a ratio of the acrylic resin having high compatibility with the ultraviolet absorber is 5-30 mass%, further, the ultraviolet absorber is a triazine-based ultraviolet absorber, so the ultraviolet absorber can maintain high ultraviolet screening property even in use for a long period of time without bleeding out the ultraviolet absorber.SELECTED DRAWING: Figure 1 【課題】耐候性と展張性とに優れたポリフッ化ビニリデン樹脂フィルムを使用して、その紫外線遮断性を改善すること。【解決手段】ポリフッ化ビニリデン樹脂、アクリル系樹脂及び紫外線吸収剤を含有させ、そのアクリル系樹脂の割合を5〜30質量%とすると共に、紫外線吸収剤をトリアジン系紫外線吸収剤で構成する。ポリフッ化ビニリデン樹脂を使用するため、耐候性と展張性とに優れており、紫外線吸収剤と親和性の高いアクリル系樹脂の割合が5〜30質量%で、しかも、紫外線吸収剤がトリアジン系であるため、この紫外線吸収剤がブリードアウトすることがなく、長期間使用しても高い紫外線遮断性を維持することができる。【選択図】図1