发明公开
- 专利标题: MULTILAYER
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申请号: EP22207318.1申请日: 2022-11-14
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公开(公告)号: EP4368388A1公开(公告)日: 2024-05-15
- 发明人: MORENO LÓPEZ, Elena , GARCÍA MONTEAGUDO, Miguel , AGREDANO, Isabel , BALKAU, Wernewr
- 申请人: B&T Entwicklungs- und Vermarktungsgesellschaft mbH
- 申请人地址: DE 22297 Hamburg Überseering 18
- 专利权人: B&T Entwicklungs- und Vermarktungsgesellschaft mbH
- 当前专利权人: CAMM SOLUTIONS (SPAIN) R&D, S.L.U.
- 当前专利权人地址: CAMM SOLUTIONS (SPAIN) R&D, S.L.U.
- 代理机构: Frei Patent Attorneys
- 主分类号: B32B27/08
- IPC分类号: B32B27/08 ; B32B27/18 ; B32B27/30 ; B32B27/36 ; B32B29/00 ; C08J5/18
摘要:
The multilayer (5) comprises at least one first layer (1) comprising water-soluble polymer, wherein the first layer (1) has an oxygen transmission barrier. The multilayer (5) further comprises at least one second layer (2), wherein second layer (2) has a water vapor and/or humidity barrier. The second layer (2) comprises a wax (20). The wax (20) can be in particular a natural wax, in particular food-safe wax, in particular biodegradable wax, in particular bee wax. The wax (20) enables to minimize the risk of migration of odours from and/or to the packaged goods. The multilayer (5) further comprises at least one third layer (3). The third layer (3) also comprises a water-soluble polymer. The first layer (1) comprises a first sublayer (11) and a second sublayer (12), both of which can comprise the water-soluble polymer.
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