B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 81/24 (2006.01) B32B 27/08 (2006.01) B32B 33/00 (2006.01) B65D 65/46 (2006.01)
Patent
CA 2670850
A layer of a biodegradable, compostable co-polyester is extrusion coated onto the surface of a bio-degradable compostable cellulose film to overcome the limitations of cellulose film as a packaging film for fresh produce and still retain the biodegradability, compostability and stiffness of the overall structure. Additionally, good bond strength between the cellulose film and the extruded co-polyester polymer is achieved by applying a thin coating of co-polyester to the surface of the cellulose film by means of a solvent or water based coating process. A biodegradable, compostable co-polyester polymer is extrusion coated onto an additional barrier layer to provide a significant barrier enhancement in high humidity environments beyond levels that would be reasonably predicted.
Ettridge Peter
White Christopher R.
Amcor Flexibles Transpac N.v.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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