Oxygen absorber
US6436872B2 · kind B2 · utility
41Cited by
15References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 2001 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | May 2, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K15/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An oxygen-absorbing composition containing particulate annealed electrolytically reduced iron of between about 100 mesh and 325 mesh in an amount of about up to 63% by weight, a salt such as sodium chloride in an amount by weight of about up to 3.5%, and a water-supplying component comprising activated carbon. with liquid water therein of a mesh size of between about 20 mesh and 50 mesh in an amount by weight of up to about 85% in an envelope which will resist the passage of liquid water out of the envelope but will permit flow of oxygen into the envelope at a satisfactory rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.