Gas barrier film and method for producing gas barrier film
US12090734B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Jan 31, 2022 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Oct 4, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2553/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A gas barrier film includes: a substrate mainly composed of polyethylene or polypropylene; a gas barrier layer formed on the substrate; and a cover layer formed on the gas barrier layer; a surface of the substrate on which the gas barrier layer is formed has an element ratio O/C between oxygen and carbon of 0.03 or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.