Reinforced film and method of manufacturing same

B - Operations – Transporting – 29 – C

Patent

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18/1113, 117/109

B29C 43/24 (2006.01) B29C 43/28 (2006.01) B29C 70/08 (2006.01) B29C 70/50 (2006.01)

Patent

CA 2024860

ABSTRACT A reinforced, impervious, unitary film and a method for making the same are disclosed. In a preferred embodiment, a film is produced from a layer of weft inserted warp knit polyester scrim and at least one layer of polyester mat, together being impregnated with a suitable thermoformable plastic in liquid form such as PVC plastisol, then being set and calendered under pressure to deform the plastic and create a continuous, non-porous, unitary film. The resulting product is highly resistant to water absorption and hydrostatic pressure and essentially non-wicking.

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