Multilayer film for resealable packaging with improved resealing
US11912000B2 · kind B2 · utility
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19Claims
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Assignee
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Key dates
| Filing date | Oct 24, 2019 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Jun 1, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/70
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
1) Multilayer film comprising 2 thin layers D and E of a thermoplastic material bonded together by a continuous layer A consisting of a hot-melt pressure-sensitive adhesive composition comprising: said multilayer film being such that the adhesive layer A is: each of the 2 layers B and C respectively consisting of a composition (b) and (c) each comprising: 2) Process for producing said film by coextrusion.3) Use of said film for producing resealable packagings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.