Multi-layer barrier for a container
US11390416B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2016 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Apr 5, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0067
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A preform configured to form a container. The preform includes a finish defining an opening and a top sealing surface configured to contact a closure to seal the opening closed. A body portion extends from the finish. A bottom portion is at an end of the preform opposite to the finish. A longitudinal axis of the preform extends through an axial center of the bottom portion. An oxygen barrier layer extends along the body portion to the bottom portion and across the bottom portion. A base layer includes an outer portion and an inner portion. The oxygen barrier layer is between the outer portion and the inner portion. The oxygen barrier layer extends along the body portion and the bottom portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.