| 摘要 |
PURPOSE:To prevent unevenness to be generated on a film at the time of metallizing of the film, by making use of a specific biaxially oriented polyphenylene sulfide film as the metallizing film. CONSTITUTION:A sheet comprised of a resin composition consisting mainly of poly-P-phenylene sulfide is biaxially oriented longitudinally and laterally at a temperature of 95-115 deg.C and heat-treated at a temperature of at least 200 deg.C and not exceeding the melting point. At the time when a temperature rise is performed at a rate of 10 deg.C/min. up to 70 deg.C from 25 deg.C while applying tension of 3kg per section of 1mm<2> in a longitudinal direction, in a film, a biaxially oriented polyphenylene sulfide film whose elongation of a longitudinal direction is 0.4% or less is obtained. When a film is metallized, since a deformation of the film is little, unevenness is hard to occur and a phenomenon succumbing to heat at the time of metallizing is not generated. An obtained metallized film has favorably dimensional accuracy and shows favorable properties as a capacitor. |
