B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
220/0.5
B65D 30/08 (2006.01) B32B 27/08 (2006.01) B65D 65/40 (2006.01) B65D 81/26 (2006.01)
Patent
CA 1126221
A B S T R A C T A flexible pouch comprises two layers of heat- sealable thermoplastics material applied to opposite surfaces of an intermediate layer other than a layer of metal foil or to surfaces of each other, the materials of the said two layers having limited compatibility and the pouch being sealed, where it will require to be opened, at a line or lines of contact between surfaces of different layers of the materials. An intermediate layer may be of transparent or opaque material or of a material loaded with a salt capable of keeping the moisture condition of contents of a pouch within limites required for their protection.
278597
Foster Norman
Jones Christopher I.
Puri Krishan K.
British-American Tobacco Company Limited
Mardon Flexible Packaging Limited
Ridout & Maybee Llp
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