Solid oxygen absorbing film

A multilayer nonporous oxygen absorbing structure comprising:

• a first layer comprising a first continuous polymer phase, a first water insoluble, dispersed, polyether resin phase in the first continuous polymer phase, and a water activated oxygen absorber;
• and,
• a second layer comprising a second continuous polymer phase, bonded to the first layer,
• wherein, the first continuous polymer phase and the first water insoluble, dispersed, polyether resin phase form an immiscible polymer blend,
• wherein, an amount of the first water insoluble, dispersed, polyether resin phase and an amount of the first continuous polymer phase is determined by a viscosity ratio of the first water insoluble, dispersed, polyether resin phase and the first continuous polymer phase according to the equation:
• ϕ
• 1
• >
• ϕ
• 2
• (
• η
• 1
• η
• 2
• )
• ,
• where ϕ1 and ϕ2 are the volume fractions of the first continuous polymer phase and the first water insoluble, dispersed polyether resin phase, respectively, and η1 and η2 are melt viscosities of the first continuous polymer phase and the first water insoluble, dispersed, polyether resin phase at the same shear rate and temperature, respectively, and
• wherein, the first layer has a water vapor permeability greater than or equal to 0.040
• (
• g
• ·
• mm
• m
• 2
• ·
• 24
• ⁢
• hrs
• )
• at 5° C. and 90% relative humidity and less than 0.682
• (
• g
• ·
• mm
• m
• 2
• ·
• 24
• ⁢
• hrs
• )
• at 23° C. and 90% relative humidity.