Closure with oxygen scavenging system
US4279350A · kind A · utility
55Cited by
7References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1979 |
| Grant date | Jul 21, 1981 |
| Priority date | — |
| Expiry date | Oct 11, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D51/244
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An oxygen-scavenging system for use in a closure for containers is disclosed. The system is in the form of a closure liner that incorporates a catalyst disposed between an oxygen permeable barrier and a water absorbent backing member. The backing member rests against the inside of the closure and the oxygen permeable barrier rests against the mouth of the container and the catalyst is sandwiched between the backing member and the barrier. The backing member may be porous and the closure may be perforated to allow water to escape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.