Film obtained by laminating coating layer made of fluorine-containing acrylic resin on base film
AssigneeKaneka Corporation
InventorHiroshi Kamiyama
Life of this patent
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Abstract
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.
Claims12
A film comprising:
- a coating layer made of a fluorine-containing acrylic resin;
- and
- a base film, on which the coating layer is laminated,
- wherein 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,
- wherein 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, and
- wherein a water contact angle of the coating layer at a temperature of 80° C. is not less than 85°,
- wherein 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.
Dependencies are inferred from the claim text.