Polypropylene/ethylene polymer fiber having improved bond performance and composition for making the same
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United States of America Patent
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Nov 19, 2002
Grant Date -
Feb 14, 2002
app pub date -
Aug 27, 2001
filing date -
Dec 8, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The subject invention is directed to fibers and polymer blend compositions having improved bonding performance. In particular, the subject invention pertains to a multiconstituent fiber comprising a blend of a polypropylene polymer and a high molecular weight (i.e. low melt index or melt flow) ethylene polymer. The subject invention further pertains to the use of the fiber and polymer blend composition which has improved bonding performance in various end-use applications, especially woven and nonwoven fabrics such as, for example, disposable incontinence garments and diapers. The fibers have good spinnability and provide fabrics having improved bond strength and elongation.
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