发明名称 |
BIORIENTIERTE POLYETHYLENFOLIE MIT HOHER WASSERDAMPFDURCHLASSRATE |
摘要 |
<p>Methods of producing polyethylene films having a desired water vapor transmission rate (WVTR) are provided. The methods include casting a polyethylene sheet which has a base layer of a polyethylene and a cavitating agent, and at least one layer of a WVTR-controlling material, and subsequently biaxially orienting the sheet to yield a film having the desired WVTR. The base layer has a porous microstructure and a WVTR substantially higher than the desired WVTR.</p> |
申请公布号 |
DE69916467(T2) |
申请公布日期 |
2005.05.12 |
申请号 |
DE1999616467T |
申请日期 |
1999.04.30 |
申请人 |
EXXONMOBIL OIL CORP., FAIRFAX |
发明人 |
PIP, JOACHIM;AGENT, ROGERS |
分类号 |
B32B27/32;B29C39/20;B29C47/06;B29C55/02;B29C55/12;B32B5/18;B32B27/08;C07K14/26;C08J5/18;(IPC1-7):B29C47/06 |
主分类号 |
B32B27/32 |
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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