Patent ID: 6732493
Filing Date: 2004-05-11
Classification: B32B,B65D,Y10T

Abstract:
A method of packaging food, which compromises packaging said food in an at least eight-layer co-extruded, adhesive-free and ethylene vinyl alcohol (EVOH)-free film comprised ofa) a first outer layer (10) containing a polyamide or a mixture of various polyamides, b) a second outer layer (24) containing a polyolefin or olefin copolymer or a mixture of these polymers, c) a fourth inner layer (18) containing a polyamide or a mixture of various polyamides, d) a second inner layer (14) containing a polyolefin or olefin copolymer or a mixture of these polymers, e) a first inner layer (12) adjoining the first outer layer (10) and the second inner layer (14) and containing a coupling polymer, f) a third inner layer (16) adjoining the second and fourth inner layers (14 and 18), and containing a coupling polymer, g) a fifth inner layer (20) adjoining fourth inner layer (18) and a sixth inner layer (22), and containing a coupling polymer, h) said sixth inner layer (22) adjoining the fifth inner layer (20) and the second outer layer (24), and containing a polyolefin or olefin copolymer or a mixture of these polymers.