Oxygen scavenging container
US5804236A · kind A · utility
Inventor
Key dates
| Filing date | Sep 26, 1996 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Sep 26, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24967
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
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, FeO.sub.X, and Fe.sub.X O.sub.Z (OH).sub.T. The organic compounds used as oxygen scav…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.