| 发明名称 |
Stretched polychlorotrifluoroethylene film, process for production thereof and packaged product using the film. |
| 摘要 |
A stretched PCTFE (polychlorotrifluoroethylene) film is provided with a good moisture-proofness (low moisture permeability) even at a relatively small thickness and at a small crystallinity The film is characterized by a crystallinity A (%) of 15 - 75 % and a moisture permeability B (mg/m<2>.day) at a film thickness of 20 mu m, satisfying a relationship of B/(100-A) </= 3.0. The film may suitably be produced through a process characterized by a sequence of a relatively low-temperature melt-extrusion and a low temperature stretching. The film is suitably used for constituting moisture-proof packaged products, such as an EL device or a packaged drug product. |
| 申请公布号 |
EP0684123(A2) |
申请公布日期 |
1995.11.29 |
| 申请号 |
EP19950303512 |
申请日期 |
1995.05.24 |
| 申请人 |
KUREHA KAGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
MIZUNO, TOSHIYA, C/O KUREHA KAGAKU KOGYO K.K.;TERAMOTO, YOSHIKICHI, C/O KUREHA KAGAKU KOGYO K.K.;TADA, YASUHIRO, C/O KUREHA KAGAKU KOGYO K.K. |
| 分类号 |
B65D85/38;A61J1/00;A61J1/03;B29C47/00;B29C55/00;B29C55/02;B29C71/02;B29K27/12;B29L7/00;B32B27/30;B65D65/40;B65D85/42;B65D85/86;C08F14/00;C08F14/24;C08J5/18;C08L27/06;C08L27/12;(IPC1-7):B29C55/00 |
主分类号 |
B65D85/38 |
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