| 摘要 |
PROBLEM TO BE SOLVED: To provide a film for a capacitor excellent in the oxidation resistance of a metal layer, and the capacitor using it. SOLUTION: The film for the capacitor is constituted by providing a coating layer at least on one side of a metallized film obtained by forming a metal layer at least on one side of a polymer film and the water vapor permeability [g/(m<SP>2</SP>24 h), 40°C, 90% RH] of the film for the capacitor satisfies formula (1): X/α+Y/β=1/Z and formula (2): A/Z<0.75 äwherein A is the water vapor permeability [g/(m<SP>2</SP>24 h), 40°C, 90% RH], X is the thickness (μm) of the polymer film, Y is the thickness (nm) of the metal layer,αis the water vapor permeability [g/(m<SP>2</SP>24 hrμm), 40°C, 90% RH] per the polymer film 1μm andβis the water vapor permeability [g/(m<SP>2</SP>24 h nm), 40°C 90% RH] per the metal layer 1 nm}. COPYRIGHT: (C)2006,JPO&NCIPI
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