发明名称 |
MULTIPLY POLYOLEFIN SHEET, METHOD FOR MAKING SAME AND RELATED USE |
摘要 |
The invention relates to a multilayer polyolefin film composed of at least three layers, comprising a) a core layer A functioning as base layer and composed of at least one amorphous polyolefin or of a mixture of at least one semicrystalline polyolefin and 5.0% by weight or more of at least one amorphous polyolefin and b) on the two sides, outer layers B and C, which are identical or different, composed of a polyolefin (polyethylene, polypropylene) and/or a mixture composed of polypropylene and of an amorphous polyolefin. The films of the invention have very good thermoformability together with low shrinkage. The chemical structure of the core layer A gives exceptionally low water absorption and superior barrier action with respect to water vapor. The invention further relates to the use of this film and to a process for its production. |
申请公布号 |
EP1531987(A1) |
申请公布日期 |
2005.05.25 |
申请号 |
EP20030792370 |
申请日期 |
2003.08.19 |
申请人 |
TICONA GMBH |
发明人 |
BEER, EKKEHARD;GOERLITZ, WOLFRAM;HOECKER, BERND |
分类号 |
B65D75/36;A61J1/03;B29C47/16;B29K23/00;B29L7/00;B29L9/00;B32B27/32;B65D65/40;(IPC1-7):B32B27/32 |
主分类号 |
B65D75/36 |
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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