Multilayer barrier film
US10967615B2 · kind B2 · utility
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31References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2017 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Feb 15, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/70
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multilayer plastic film or sheet having a series of component layers and optional bonding layers tying said component layers together is provided. The multilayer film or sheet comprises a central barrier layer comprising first and second layers of polyvinylidene chloride polymer bonded together with a tie or bonding layer, an outer layer adjacent to an outer side of the first PVDC layer, and a sealant layer adjacent to an outer side of the second PVDC layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.