Heat resistant recycle-ready retort packaging
US12397534B2 · kind B2 · utility
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8References
7Claims
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Key dates
| Filing date | Jun 8, 2020 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Jun 8, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2423/106
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A laminated polypropylene-based film suitable for retort packaging having an exterior film, a barrier layer, and a sealing layer. The retort packaging film has a total composition including high levels of polyolefin-based polymers and polypropylene-based polymers such that the material can be processed efficiently in a polypropylene recycling process. Advantageously, the film retains the properties required to suitably withstand the retort process and produce a high-quality shelf-stable packaged product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.