| 摘要 |
A container composed of a polymer material integrated with an oxygen scavenging agent is disclosed that is suitable for oxygen sensitive contents. The novel container is capable of scavenging excess oxygen from the enclosed atmosphere of the container without substantially modifying the design of similar container. The container includes at least one layer composed of a polymer material integrated with an oxygen scavenging agent between 0.01 and 1.0% weight of the entire container. The oxygen scavenging layer only surrounds the atmosphere of the container while the rest of the container has an unmodified layer of the same polymer material. In most container configurations, the modified layer would be the neck portion of the container. The polymer material may be selected from polyethylene terephthalate, a copolymer of polyethylene terephthalate and a mixture thereof. The oxygen scavenging agent may be selected from iron based compounds, organic compounds and biologically active compounds. More specifically, the iron based compounds may be selected from pure iron, iron containing organic compounds, FeOX, and FeXOZ(OH)T. The organic compounds used as oxygen scavenging agents may be selected from ascorbic acid, vitamin E, vitamin B and most other vitamins. The oxygen scavenging layer is in direct contact with the gaseous contents of the atmosphere of the container. The present invention also discloses a method for fabricating an oxygen scavenging container. |
