发明名称 |
CLOSURE MEMBRANES |
摘要 |
Closure membrane for containers having an outer film and inner film with a joining layer and a sealing seam zone between these two films. At least one space free of a bonding layer is provided within the sealing seam zone between the outer film and the inner film and, within the limits of this non-bonded space, the outer film and the inner film each feature at least one opening, and a reservoir of material that softens under the influence of heat is provided in the non-bonded space between the outer film and the inner film. The openings in the inner film and the openings in the outer film are connected to enable the passage of a fluid such as a gas from the interior of the container to the surrounding atmosphere. On application of heat to the closure membrane e.g. during a sterilisation process, the openings in the inner film and the outer film are closed off as a result of softening of the material that softens under the influence of heat. |
申请公布号 |
CA2276120(A1) |
申请公布日期 |
1999.12.24 |
申请号 |
CA19992276120 |
申请日期 |
1999.06.21 |
申请人 |
ALUSUISSE TECHNOLOGY & MANAGEMENT LTD. |
发明人 |
MARBLER, CLAUDE A.;BOUDINET, JEAN-PAUL |
分类号 |
B65D77/22;(IPC1-7):B65D51/16;B65D41/20;B65D53/00;B65D81/24 |
主分类号 |
B65D77/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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