C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 5/18 (2006.01) B32B 9/00 (2006.01) B32B 9/02 (2006.01) C08B 30/12 (2006.01) C08L 3/02 (2006.01) C08L 23/02 (2006.01)
Patent
CA 2060650
ABSTRACT A single-layer or multiple-layer foil of substantially reduced gas-permeability comprises at least one layer which consists, at least in part, of substantially thermo- plastically processable starch. In order that this single- layer or multiple-layer foil is at least approximately insensitive to moisture it is proposed that at least one layer comprises furthermore at least one hydrophobic polymer, such as a polyolefin, which is mixed with the starch upon the production of said at least one layer, and/or that the starch is at least partially cross-linked on the surface of said at least one layer and/or that said at least one layer is covered by at least one additional layer which is at least approximately insensitive to moisture.
Tomka Ivan
Bio-Tec Biologische Naturverpackungen Gmbh & Co. Kg
Kirby Eades Gale Baker
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