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AssigneeDenki Kagaku Kogyo Kabushiki Kaisha
InventorsHidetoshi Yoshimura, Fukumu Komoda, Atsushi Igarashi, Susumu Ooka, Koji Nakajima
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Provided is a vinylidene fluoride resin film that has good adhesiveness to a base material, achieves good dispersivity even when a pigment is contained in large amounts, and has excellent thermal stability during a forming process. To a resin component composed of a vinylidene fluoride resin and a methacrylic acid ester resin, a predetermined amount of a titanium oxide surface treated with alumina and silica and a predetermined amount of a fatty acid ester of polyethylene glycol and/or its derivative are added to prepare a vinylidene fluoride resin film. Alternatively, at least a front side layer and a back side layer have such a composition, the front side layer has a combination amount of the vinylidene fluoride resin and the methacrylic acid ester resin of 70:30 to 95:5 in terms of mass ratio, and the back side layer has a combination amount of the vinylidene fluoride resin and the methacrylic acid ester resin of 5:95 to 45:55 in terms of mass ratio. In each case, the total adhesion amount of alumina and silica is 5 to 11% by mass in the titanium oxide relative to the total mass of the titanium oxide.
A vinylidene fluoride resin film comprising:
A vinylidene fluoride resin film comprising a multilayer film including two or more layers having compositions different from each other,
Dependencies are inferred from the claim text.