A film includes: a coating layer made of a fluorine-containing acrylic resin; and a base film, on which the coating layer is laminated. The fluorine-containing acrylic resin is obtained by copolymerizing 50 to 99 parts by weight of a monomer represented by a general formula (1) with 50 to 1 parts by weight of a methacrylate-based monomer, and a melt viscosity of the fluorine-containing acrylic resin is less than 300 Pa·s under conditions of a die temperature of 220° C., a shear rate of 122 sec−1, and a capillary die diameter of 1 mm based on JIS K7199.
In the general formula (1), R1 is a direct bond or a straight-chain or branched-chain alkylene group containing 1 to 4 carbon atoms, and R2 is methyl.
一种薄膜包括:由含
氟丙烯酸树脂制成的涂层;以及将涂层层压在其上的基膜。含
氟丙烯酸树脂是由 50 至 99 份(按重量计)通式(1)代表的单体与 50 至 1 份(按重量计)
甲基丙烯酸酯基单体共聚而得,根据 JIS K7199 标准,在模具温度为 220°C、剪切速率为 122 秒-1、毛细管模具直径为 1 毫米的条件下,含
氟丙烯酸树脂的熔体粘度小于 300 Pa-s。
在通式(1)中,R1 是直接键或含有 1 至 4 个碳原子的直链或支链亚烷基,R2 是甲基。