Opaque oriented non-thermoplastic polymer film and method of...

Details Opaque oriented non-thermoplastic polymer film and method of... Opaque oriented non-thermoplastic polymer film and method of...

B - Operations, Transporting

29

C

18/644

B29C 67/20 (2006.01) B29C 47/00 (2006.01) C08J 5/18 (2006.01)

Patent

CA 1223413

ABSTRACT OPAQUE ORIENTED NON-THERMOPLASTIC POLYMER FILM . AND METHOD OF FORMING SAME An opaque oriented non-thermoplastic polymer film contains opacifying voids which contain rigid microspheres therein. The non-thermoplastic polymer used to form the film is preferably polyacrylonitrile or polyvinyl alcohol.

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