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    • 4. 发明申请
    • RESILIENT ABSORBENT COFORM NONWOVEN WEB
    • 耐用吸收剂非织造网
    • WO2011077277A3
    • 2011-11-24
    • PCT/IB2010055250
    • 2010-11-17
    • KIMBERLY CLARK COJACKSON DAVID M
    • JACKSON DAVID M
    • D04H1/42D01F6/06D04H1/56
    • A61L15/24A61F13/15658A61F13/538A61L15/60D01D5/0985D01F6/30D01F11/06D04H1/407D04H1/4282D04H1/56D04H3/005D04H3/16D04H5/08Y10T442/68
    • A resilient coform nonwoven web that contains a matrix of meltblown fibers and an absorbent material is provided. The meltblown fibers may constitute from 45 wt% to about 99 wt% of the web and the absorbent material may constitute from about 1 wt% to about 55 wt% of the web. The meltblown fibers may be formed from a thermoplastic composition that contains at least one propylene/a- olefin copolymer having a propylene content of from about 60 mole% to about 99.5 mole% and an a-olefin content of from about 0.5 mole% to about 40 mole%. The copolymer may have a density of from about 0.86 to about 0.90 grams per cubic centimeter and the thermoplastic composition may have a melt flow rate of from about 200 to about 6000 grams per 10 minutes, determined at 230°C in accordance with ASTM Test Method D1238-E. The coform web may be imparted with a three-dimensional texture by, for example, using a three-dimensional forming surface. As one example, the resilient coform web is suitable for use as a component in the absorbent core of a personal care absorbent product.
    • 提供了一种包含熔喷纤维基质和吸收材料的弹性共成纤维非织造纤维网。 熔喷纤维可以占网的45重量%至约99重量%,并且吸收材料可以占网的约1重量%至约55重量%。 熔喷纤维可以由热塑性组合物形成,该热塑性组合物含有至少一种丙烯含量为约60摩尔%至约99.5摩尔%的丙烯/α-烯烃共聚物,α-烯烃含量为约0.5摩尔%至约 40摩尔%。 共聚物可以具有约0.86至约0.90克/立方厘米的密度,并且热塑性组合物可以具有约200至约6000克/ 10分钟的熔体流动速率,在230℃下根据ASTM测试方法 D1238-E。 可以通过例如使用三维成形表面赋予共模成形纤维网的三维织构。 作为一个示例,弹性共模纤维网适合用作个人护理吸收产品的吸收芯中的组分。