| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated film having excellent dimensional stability and surface flatness, and having small curling properties and excellent processability.SOLUTION: The laminated film is prepared by laminating a film layer A and a film layer B composed of polyethylene terephthalate. The film layer A is prepared by melting and kneading a resin A' in which the molar ratio of the terephthalic acid (TA) component and the 2,6-naphthalene dicarboxylic acid component (NDC) in the total acid component is in a range of 75:25-100:0, and the molar ratio of 1,4-cyclohexane dimethanol (CHDM) and the ethylene glycol (EG) component in the total glycol component is in a range of 40:60-90:10, and polyethylene terephthalate so that the molar ratio of the TA component and the NDC component in the total acid component becomes 90:10-100:0, and the molar ratio of the CHDM component and the EG component in the total glycol component becomes 12:88-40:60. |
