发明名称 |
Weldable bidirectionally oriented polypropylene film of improved barrier properties |
摘要 |
<p>The invention relates to a multi-layer, sealable biaxially oriented polypropylene film consisting of a base layer and at least one sealable covering layer. The base layer contains between 1 and 15 weight % of a resin with a mean molecular weight Mw of between 600 and 1,500 and between 1 and 6 weight % of a wax with a mean molecular weight Mn of between 200 and 700. The n-heptane insoluble part of the polypropylene of the base layer has a chain isotactic index of at least 95%, as measured by <13>C-NMR spectroscopy. The invention also relates to a method for producing said film and to its use.</p> |
申请公布号 |
PL200126(B1) |
申请公布日期 |
2008.12.31 |
申请号 |
PL19990342395 |
申请日期 |
1999.02.10 |
申请人 |
TRESPAPHAN GMBH |
发明人 |
SPEITH-HERFURTH ANGELA;HANSOHN ROBERT;SCHUHMANN DETLEF;ERNST FRANK |
分类号 |
B65D81/24;C08J5/18;B29C55/12;B32B27/32;B65D85/10;C08L23/02;C08L23/10;C08L23/12;C08L23/14;C08L57/02;C08L83/04;C08L91/00;C08L91/06 |
主分类号 |
B65D81/24 |
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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