Container having an oxygen scavenging activation system
A polyethylene terephthalate container having a hydrogen generator and catalyst disposed or otherwise incorporated in components of the container. The container further comprises an activation system or means for activating the hydrogen generator and/or catalyst system at a predetermined time or in response to a predetermined stimulus.
1. A container comprising:
a body having a finish;
a closure member releasably engageable with said finish;
a hydrogen generator generating molecular hydrogen, said hydrogen generator being coupled to said closure member;
a catalyst catalyzing a chemical reaction between said hydrogen and oxygen; and
an activation system selectively delaying said hydrogen generator from generating said molecular hydrogen until exposure to a trigger, said activation system having a physical barrier formed over at least a portion of said hydrogen generator that is selectively removable from said hydrogen generator by said trigger.
2. The container according to claim 1 wherein said trigger of said activation system comprises a temperature trigger.
3. The container according to claim 2 wherein said temperature trigger comprises a material disposed over at least a portion of said hydrogen generator, said material delaminating, dewetting, transitioning from crystalline to amorphous, evaporating, or decomposing in response to thermal energy.
4. The container according to claim 1 wherein said trigger of said activation system comprises a high energy beam trigger perforating or decomposing a barrier formed over at least a portion of said hydrogen generator.
5. The container according to claim 1 wherein said trigger of said activation system comprises a light trigger increasing a permeability of a barrier formed over at least a portion of said hydrogen generator in response to a predetermined bandwidth of light.
6. The container according to claim 1 wherein said trigger of said activation system comprises a plasma etch trigger perforating or decomposing a barrier formed over at least a portion of said hydrogen generator in response to plasma treatment.
7. The container according to claim 1 wherein said trigger of said activation system comprises a vacuum trigger causing a barrier formed over at least a portion of said hydrogen generator to be altered in response to a vacuum force.
8. The container according to claim 7 wherein said vacuum force is generated in response to a hot-fill operation.