发明名称 |
Durable hydrophilic nonwoven webs and articles formed therefrom |
摘要 |
Nonwoven webs in accordance with the present invention include multicomponent fibers bonded by a multiplicity of bond sites to form a coherent web. The multicomponent fibers include a first component formed of a hydrophobic polypropylene and a second component formed of a blend of a hydrophobic polyolefin and a hydrophilic melt additive. This second component is disposed at the surface of the fibers. The hydrophilic melt additive-modified polyolefin component can be arranged in various configurations in the cross-section of the fiber and the fibers can have various cross sections. For example, the hydrophilic component can occupy a portion of the surface of the fiber, as would occur for example with a side-by-side or segmented pie multicomponent fiber configuration. Alternatively, the modified hydrophilic polyolefin can occupy substantially the entire surface of fiber, as for example by producing the fibers in a sheath core configuration with the hydrophilic modified component forming the sheath. A particularly preferred configuration is a sheath-core bicomponent fiber where the hydrophobic polypropylene forms the core and the modified hydrophilic polyolefin forms the sheath.
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申请公布号 |
US6696373(B2) |
申请公布日期 |
2004.02.24 |
申请号 |
US20000725797 |
申请日期 |
2000.11.29 |
申请人 |
BBA NONWOVENS SIMPSONVILLE, INC. |
发明人 |
KINN LARRY L.;HENNING GREGORY NEIL;HALEY CLEMENT J. |
分类号 |
D04H1/42;D04H13/00;H01M2/16;H01M10/24;(IPC1-7):D04H1/00;D04H3/00;D04H5/00;D02G3/00 |
主分类号 |
D04H1/42 |
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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