Oxygen absorbent
US5236617A · kind A · utility
19Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1992 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | Apr 21, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2220/46
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A new oxygen absorbent which is used sealed in a pack with a food to prevent the food from deteriorating is disclosed, in which the oxygen absorbent contains ascorbic acid and/or salts thereof, an alkaline compound such as sodium carbonate, a reaction accelerator such as ferrous sulfate, and a silica gel, and improves the flowability and the oxygen absorbability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.