Oxygen absorber
US5262375A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 26, 1992 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | May 26, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2220/42
- 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 99.6% by weight, a salt such as sodium chloride in an amount by weight of about up to 3.5%, and optionally a water-attracting and supplying component such as silica gel of a mesh size of between about 30 mesh and 325 mesh in an amount by weight of up to about 80%. A packet for absorbing oxygen including a stain and grease resistant envelope containing the oxygen-absorbing composition. A grease and stain resistant laminate consisting of plies of various plastics and grease and stain resisting paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.