Invention Grant
US06465378B2 Nonwoven fabrics and fabric laminates from multiconstituent polyolefin fibers
失效
来自多组分聚烯烃纤维的无纺织物和织物层压材料
- Patent Title: Nonwoven fabrics and fabric laminates from multiconstituent polyolefin fibers
- Patent Title (中): 来自多组分聚烯烃纤维的无纺织物和织物层压材料
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Application No.: US09773901Application Date: 2001-01-31
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Publication No.: US06465378B2Publication Date: 2002-10-15
- Inventor: Scott L. Gessner , J. Darrell Gillespie , Jared A. Austin , David D. Newkirk , William Fowells
- Applicant: Scott L. Gessner , J. Darrell Gillespie , Jared A. Austin , David D. Newkirk , William Fowells
- Main IPC: B32B506
- IPC: B32B506

Abstract:
Nonwoven fabrics and fabric laminates are formed from continuous filaments or staple fibers of a select blend of specific grades of polyethylene and polypropylene which give improved fabric performance not heretofore recognized or described, such as high abrasion resistance, good tensile properties, excellent softness and the like. Furthermore, these blends have excellent melt spinning and processing properties which permit efficiently producing nonwoven fabrics at high productivity levels. The polymers are present as a lower-melting dominant continuous phase and at least one higher-melting noncontinuous phase dispersed therein. The lower-melting continuous phase forms at least 70 percent by weight of the fiber and comprises a linear low density polyethylene polymer of a melt index of greater than 10 and a density of less than 0.945 g/cc. At least one higher-melting noncontinuous phase comprises a polypropylene polymer with melt flow rate of greater than 20 g/10 min.
Public/Granted literature
- US20010004574A1 Nonwoven fabrics and fabric laminates from multiconstituent polyolefin fibers Public/Granted day:2001-06-21
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