发明名称 |
Moistureproof film. |
摘要 |
<p>There are provided two types of moistureproof films of a laminated structure. The first type of moistureproof film comprises a core layer (A) and a protective layer (B) joined to one side of the core layer, wherein: (a) the core layer (A) is composed of a transparent film of a polyvinyl alcohol having a degree of saponification of 99 mol % or higher, the film having a silicon oxide thin film formed on at least one side thereof; and (b) the protective layer (B) is composed of a transparent film including at least one layer of a transparent plastic film having a transparent silicon oxide thin film formed on at least one side thereof. The second type of moistureproof film comprises a moistureproof film of a laminated structure comprising a core layer (A), a protective layer (B) joined to one side of the core layer and a sealant layer (C) joined to the other side of the core layer, wherein: (a) the core layer (A) is composed of a film of a polyvinyl alcohol having a degree of saponification of 99 mol % or higher, the film having a silicon oxide thin film formed on at least one side thereof; (b) the protective layer (B) is composed of a transparent film including at least one layer of a transparent plastic film having a transparent silicon oxide thin film formed on at least one side thereof; and (c) the sealant layer is composed of a sealable resin.</p> |
申请公布号 |
EP0372489(A2) |
申请公布日期 |
1990.06.13 |
申请号 |
EP19890122402 |
申请日期 |
1989.12.05 |
申请人 |
MITSUBISHI MONSANTO CHEMICAL CO. LTD. |
发明人 |
SAWADA, TSUTOMU;OHHASI, SHINICHI;YOSHIDA, SIGENOBU |
分类号 |
B32B27/16;B65D65/40;H05B33/04 |
主分类号 |
B32B27/16 |
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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