Multiple-layer tubing

Details Multiple-layer tubing Multiple-layer tubing

A - Human Necessities

22

C

117/71, 99/89

A22C 13/00 (2006.01)

Patent

CA 1106679

-44- ABSTRACT OF THE DISCLOSURE Disclosed is a multiple layered film preferably in the form of a tube and being suitable for forming sausage casings, comprising: a central layer of a cellulose hydrate-based material; a first layer on the inside of the central layer, comprising a film of thermo- plastic synthetic resinous material and being impermeable to water and water vapor; and a second layer on the outside of the central layer, comprising a synthetic elastic copolymer and being permeable to water and water vapor. Also disclosed is a method for preparing these film products.

308576

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