Vinylidene fluoride resin film, process for production...

Details Vinylidene fluoride resin film, process for production... Vinylidene fluoride resin film, process for production...

B - Operations, Transporting

29

C

18/521, 154/126.

B29C 49/00 (2006.01) B29C 47/00 (2006.01) C08J 5/18 (2006.01) B29C 71/00 (2006.01)

Patent

CA 1244204

27528-3 ABSTRACT OF THE DISCLOSURE A vinylidene fluoride resin film having (1) a crystal melting point of 182 °C or higher as measured by differential scanning calorimeter in nitrogen atmosphere at a temperature elevation speed of 10 °C/min; (2) a diffraction point corresponding to (1 1 ?) 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 neck- ing stretching. The film has improved mechanical properties and heat-stability and is also adapted for use as a base film of a metallized film.

477894

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