Water soluble-dispersible multilayered film of high...

Details Water soluble-dispersible multilayered film of high... Water soluble-dispersible multilayered film of high...

B - Operations, Transporting

32

B

B32B 27/30 (2006.01) A61F 5/445 (2006.01) B32B 27/08 (2006.01)

Patent

CA 2164367

A film having at least two layers is disclosed, one layer being composed essentially of a water soluble/dispersible blend of polyethylene oxide (PEO) and plasticized polyvinyl chloride (PVC) and a second relatively weak layer being composed of a water insoluble polymer having high resistance to liquid and gas transmission, particularly a polymer or copolymer of vinylidene chloride (PVDC). Also disclosed is a collection pouch formed of such film. In the fabrication of such a pouch, the film panels are arranged with their PVDC layers in facing relation and the edges of such panels are then heat sealed to each other, resulting in a pouch of relatively high strength and resistance to delamination in use but capable of dissolving/dispersing quickly when discarded into the water of a flush toilet.

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