Gas permeable film and multilayer article for packaging
US11738547B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Sep 10, 2021 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Sep 10, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/066
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A gas permeable layer is formed from an ethylene-vinyl alcohol copolymer resin composition comprising an ethylene-vinyl alcohol copolymer (A), a polyolefin (B), and an acid-modified ethylene-α-olefin copolymer (C).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.