Oxygen barrier film, food packaging material comprising same, and method for producing oxygen barrier film
US12421360B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Nov 17, 2023 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Jan 15, 2044 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2489/006
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided are an oxygen barrier film, a food wrapper including the same, and a method of preparing the oxygen barrier film. The oxygen barrier film may include: a base layer; and an organic/inorganic hybrid layer located on the base layer and including a natural hydrogel and a silane coupling agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.