Oxygen scavenging compositions
US5977212A · kind A · utility
33Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Nov 21, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K9/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An oxygen scavenging composition composed of a carrier and an ascorbate based agent impregnated inert, porous particulate material distributed throughout the carrier. The composition is contained within the interior cavity of a container to scavenge oxygen therein. The composition may form at least a part of the interior surface of the container or be present therein in the form of a film, mat, sachet or ceramic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.