基本信息:
- 专利标题: PROCESS FOR ADJUSTING WVTR AND OTHER PROPERTIES OF A POLYOLEFIN FILM
- 专利标题(中):调整WVTR和其他性质的多孔薄膜的方法
- 申请号:PCT/US0013287 申请日:2000-05-15
- 公开(公告)号:WO0069615A3 公开(公告)日:2001-02-01
- 发明人: BRADY KEVIN A , MACKAY JOHN H
- 申请人: EXXON CHEMICAL PATENTS INC
- 专利权人: EXXON CHEMICAL PATENTS INC
- 当前专利权人: EXXON CHEMICAL PATENTS INC
- 优先权: US31210399 1999-05-14
- 主分类号: A61F13/15
- IPC分类号: A61F13/15 ; B29C55/18 ; C08J5/18 ; C08K3/00
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 (10) or film composite through the nip of interdigitating grooved rollers (24, 25). The films (10) or film composites are generally formed using a precursor film (10) 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 (24, 25) are maintained in a temperature range of from about 91 DEG F to about 159 DEG F.
摘要(中):
通过使填充的前体膜(10)或膜复合物通过交错的带槽辊(24,25)的辊隙,使膜,膜复合材料和由其制成的制品对水蒸汽的通过不那么耐受。 膜(10)或膜复合材料通常使用成膜聚烯烃或聚烯烃共混物的前体膜(10)形成,具有相对高的填料负载量和任选的弹性体。 公开了一种用于制造尿布或其它一次性物品的方法,其中相对较高的水蒸汽与耐液体穿透线结合。 在本发明的一个实施例中,叉指沟槽辊(24,25)保持在约91°F至约159°F的温度范围内。