B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/20 (2006.01) B29C 47/06 (2006.01) B32B 27/08 (2006.01)
Patent
CA 2059034
Packaging material for shaping into form-stable liquid-tight containers with good oxygen-tight properties through fold forming, thermo-forming or other mechanical processing for shaping of the material. The packaging material (10) comprises a skeletal layer (11) and a barrier layer (12) attached to the skeletal layer with good adhesion. The skeletal layer (11) is composed of a mixture of plastic, preferably polyolefine, and filler to an amount of between 50 and 80% of the total weight of the mixture, and the barrier layer (12) is composed of a plastic material comprising plastic of the same type as the plastic in the skeletal layer (11), preferably polyolefine, in a mixture with plastic of another type than the one mentioned. The plastic of the aforesaid other type in the barrier layer (12) can be an ethylene/vinyl alcohol copolymer, polyvinylidene chloride, polyamide or similar plastic with good oxygen-tight properties, preferably an ethylene/vinyl alcohol copolymer to an amount of 40% or more of the total weight of the barrier layer.
Marks & Clerk
Rosen Ake
Tetra Laval Holdings & Finance Sa
LandOfFree
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