Vinylidene fluoride-based resin film
AssigneeKaneka Corporation
InventorsKazuhito Wada, Yukihiro Shimamoto
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Abstract
A vinylidene fluoride-based resin film including polyvinylidene fluoride whose average spherocrystal diameter is less than 0.1 μm that is a detection limit or lower by observation using a transmission electron microscope is provided, the average spherocrystal diameter being obtained by shaping a vinylidene fluoride-based resin in a molten state by sandwiching the resin between rollers or metal belts so as to let it cool down. Thereby, a vinylidene fluoride-based resin film and a vinylidene fluoride-based resin multilayered film having excellent transparency, weather resistance, chemical resistance, break resistance and formability are provided.
Claims11
A vinylidene fluoride resin film, comprising polyvinylidene fluoride whose average spherocrystal diameter is less than 0.1 μm by observation using a transmission electron microscope, the average spherocrystal diameter being obtained by shaping a vinylidene fluoride resin in a molten state by sandwiching the resin between rollers or metal belts so as to let it cool down,
- wherein the vinylidene fluoride resin is a composition comprising 50 to 99.9 parts by weight of a vinylidene fluoride resin (D) and 0.1 to 50 parts by weight of a methacrylic resin composition (C).
A laminated product, comprising lamination including a vinylidene fluoride resin film comprising polyvinylinide fluoride whose average spherocrystal diameter is less than 0.1 μm by observation using a transmission electron microscope, the average spherocrystal diameter being obtained by shaping a vinylidene fluoride resin in a molten state by sandwiching the resin between rollers or metal belts so as to let it cool down,
- wherein the vinylidene fluoride resin is a composition comprising 50 to 99.9parts by weight of a vinylidene fluoride resin (D) and 0.1 to 50 parts by weight of a methacrylic resin composition (C).
A laminated product, comprising lamination including a vinylidene fluoride resin film and a methacrylic resin film, the vinylidene fluoride resin film comprising polyvinylidene fluoride whose average spherocrystal diameter is less than 0.1 μm by observation using a transmission electron microscope, the average spherocrystal diameter being obtained by co-extruding a vinylidene fluoride resin and a methacrylic resin composition (C) and by sandwiching the resins in a molten state between rollers or metal belts so as to let them cool down,
- wherein the vinylidene fluoride resin is a composition comprising 50 to 99.9 parts by weight of a vinylidene fluoride resin (D) and 0.1 to 50 parts by weight of a methacrylic resin composition (C).
Dependencies are inferred from the claim text.