发明名称 Process for the manufacture of microporous film
摘要 A vapor permeable and liquid impermeable microporous film suitable for diaper back sheets and other disposable applications is produced by first abrading a filled, unoriented film by passing it through at least one set of at least two cooperating nip rollers, each having an abrasive grit surface and then subjecting the unoriented abraded film to a corona treatment.
申请公布号 US4815714(A) 申请公布日期 1989.03.28
申请号 US19870092498 申请日期 1987.09.03
申请人 EL PASO PRODUCTS COMPANY 发明人 DOUGLAS, NOEL L.
分类号 B29C59/04;B29C59/10;B29C67/20;(IPC1-7):B29C59/04;B29C71/04 主分类号 B29C59/04
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