Paper-based flexible packaging material with high barrier properties and a process to produce it
US12297601B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2021 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Sep 30, 2041 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/50
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates generally to the field of polymer dispersion coated, paper-based flexible packaging materials. In particular, the present invention relates to improving the barrier properties of polymer dispersion coated 5 paper-based flexible packaging materials. Embodiments of the present invention relate to a process for improving the barrier properties of polymer dispersion coated paper-based flexible packaging materials comprising the step of applying an Al2O3 coating to at least one surface of the dispersion coated paper-based flexible packaging materials, for example by using atomic layer deposition; and an Al2O3-coated paper material 10 obtainable by such a process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.