Process for biaxially oriented acrylonitrile polymer barrier fil

Details Process for biaxially oriented acrylonitrile polymer barrier fil Process for biaxially oriented acrylonitrile polymer barrier fil

1980-05-12

1981-11-17

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264565, 264211, B29D 706, D01F 102

Patent

active

043011128

ABSTRACT:
Extrusion of a homogeneous single phase fusion melt of acrylonitrile polymer and water through a circular die into a steam-pressurized solidification zone enables the tubular film formed to be drawn longitudinally and expanded transversely to provide a biaxially oriented barrier film especially suitable for food wrapping.

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