Wenderoth, Lind & Ponack
Vinylidene fluoride resin film and metallized film thereof
 A vinylidene fluoride resin film having (1) a crystal melting point of 182.degree. C. or higher as measured by differential scanning calorimeter in nitrogen atmosphere at a temperature elevation speed of 10.degree. C./min; (2) a diffraction point corresponding to (1 1 .zeta.) of the .alpha.-phase crystal in the wide angle X-ray diffraction photograph; and (3) an orientation degree of the crystal of 0.85 or more when measured under irradiation of X-ray incident vertically on a major surface of the film. The vinylidene fluoride resin film is obtained by inflation accompanying melt necking stretching. The film has improved mechanical properties and heat-stability and is also adapted for use as a base film of a metallized film. 
Kureha Kagaku Kogyo Kabushiki Kaisha
C Y C B Y Y B B B B B
C08J Y10T C08J B29C Y10T Y10T B29C B29K B29C B29C B29C
inventional additional additional additional additional additional additional additional additional additional additional
Yoshikichi Toshiya Naohiro
Teramoto Mizuno Murayama