Scavenging oxygen
US8790543B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2010 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Jul 12, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/36
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A closure (40) for a container incorporates calcium hydride and a matrix material as a hydrogen-generating composition. In use, hydrogen is generated which reacts with oxygen permeating a container associated with the closure and a catalyst associated with the container catalyses reaction of the hydrogen and oxygen to produce water, thereby scavenging the oxygen. The composition of calcium hydride and matrix is also claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.