Reduced moisture compositions comprising an acid gas and a matrix gas, articles of manufacture comprising said compositions, and processes for manufacturing same
US7229667B2 · kind B2 · utility
9Cited by
100References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2005 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Feb 22, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2221/05
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Compositions comprising a reactive gas and a matrix gas are disclosed, as well as articles of manufacture and methods of making the articles. The methods of manufacturing preferably employ zeolites to remove moisture from the reactive gas and from the matrix gas, and then combine the moisture reduced gases either in a container, or prior to filling a container, which has been previously vacuum-baked and passivated. The invention produces stable standard gas compositions having improved shelf-life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.