发明名称 |
Process for adjusting WVTR and other properties of a polyolefin film |
摘要 |
A process for rendering films, film composites, and articles made therefrom less resistant to passage of water vapor by passing a filled precursor film or film composite through the nip of interdigitating grooved rollers. The films or film composites are generally formed using a precursor film of a film forming polyolefin or polyolefin blend, with a relatively high filler loading and optionally an elastomer. A process is disclosed for making diapers or other disposable items where a relatively high water vapor is coupled with a resistance to liquid strikethrough. In one embodiment of the invention, the interdigitating grooved rollers are maintained in a temperature range of from about 91° F. to about 159° F.
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申请公布号 |
US6258308(B1) |
申请公布日期 |
2001.07.10 |
申请号 |
US19990312103 |
申请日期 |
1999.05.14 |
申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
BRADY KEVIN A.;MACKAY JOHN H. |
分类号 |
A61F13/15;B29C55/18;C08J5/18;C08K3/00;(IPC1-7):B29C47/88 |
主分类号 |
A61F13/15 |
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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