发明名称 |
MULTI-LAYER SHEET SUITABLE AS SEALABLE SHEET |
摘要 |
A multi-layer sheet suitable as sealable or peelable sheet specially used for closing foodstuff containers or blisters. This multi-layer sheet comprises a tie-layer between a substrate layer and a seal or a peel-seal layer comprising a polyolefin with acid or anhydride, grafted or copolymerised. The tie-layer has a thickness equivalent to 1-7 g/m<2>. The seal layer comprises a polyolefin. The total thickness of the combination of tie-layer and seal layer is equivalent to 3-20 g/m. This multilayer sheet is prepared by extrusion or coextrusion coating. |
申请公布号 |
WO0117772(A1) |
申请公布日期 |
2001.03.15 |
申请号 |
WO2000US24675 |
申请日期 |
2000.09.08 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
TROUILHET, YVES |
分类号 |
B32B7/06;B32B27/32;(IPC1-7):B32B27/32;B65D77/20 |
主分类号 |
B32B7/06 |
代理机构 |
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代理人 |
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主权项 |
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