发明名称 |
Aus schmelzgeprägten Polyolefin/Füllstoff Ausgangsfolien hergestellte atmungsaktive Folien/NWF-Laminate mit hoher Wasserdampfpermeabilität. |
摘要 |
Films, made of polyethylenes and filers, and articles made therefrom greater WVTR than previously available films based on conventional Zeigler-Natta based polyethylenes. The polyethylenes are produced in a metallocene-catalyzed production process. The films may be made by a cast film process, and may be made in widely varying filler content, generally polyethylene to filler ratios of 30/70 to 70/30. The metallocene based polyethylenes when combined with filler also permit the extrusion of thinner films leading to lighter weight and softer films. The m-polyethylenes utilized for making such films typically have a Composition Distribution Breadth Index above 50%, a Mw/Mn below 3, and a Mz/Mw below 2. The films may be used advantageously in composite structures with fabrics (either woven or non-woven) to fabricate such articles as house-wrap |
申请公布号 |
DE69716744(T2) |
申请公布日期 |
2003.03.20 |
申请号 |
DE1997616744T |
申请日期 |
1997.07.31 |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC., BAYTOWN |
发明人 |
MIDDLESWORTH, A.;BRADY, A. |
分类号 |
B29C55/00;B32B27/12;B32B37/15;B32B38/04;B32B38/06;C08J5/18;D04H13/00 |
主分类号 |
B29C55/00 |
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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