Patent ID: 8252396

Claim:
A method of packaging an oxygen sensitive product, the method comprising: a. providing a film comprising: i. a first layer comprising a high permeable material having a moisture vapor permeability greater than about 40 g-mil/100 in 2 -day-atm; ii. a second layer directly adjacent to the first layer comprising EVOH; iii. a first region defining a third layer in direct contact with the second layer comprising 1 to 5 distinct sublayers comprising low permeable materials having moisture vapor permeability of less than about 20 g-mil/100 in 2 -day-atm; iv. a fourth layer comprising EVOH; v. a second region defining a fifth layer in direct contact with the fourth layer comprising 1 to 5 sublayers comprising very low permeable materials having a moisture vapor transmission rate of less than about 5 g/100 in 2 -day-atm; b. forming the film into a pouch; c. filling the pouch with an oxygen sensitive product; d. sealing the pouch; and e. subjecting the packaged product to autoclave conditions.