Plastic closure with barrier coating
US4872573A · kind A · utility
14Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 1988 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | May 17, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D41/3447
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A moldable plastic closure comprising a selectively foamed, unitarily molded layer and at least one layer of barrier resin adapted to retard the migration of oxygen-containing gasses through the closure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.