Stretchable nonwoven fabric and tape
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 27, 2013
Grant Date -
Feb 11, 2010
app pub date -
Jul 27, 2007
filing date -
Aug 4, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
To produce a nonwoven fabric comprising a conjugated fiber comprising a plurality of resins which are different in thermal shrinkage and form a phase separation structure. In the nonwoven fabric, the conjugated fibers are arranged in a direction approximately parallel to a surface direction of the nonwoven fabric and crimped. In addition, the conjugated fibers have an average curvature radius of fiber crimp of 20 to 200 μm and the crimps are distributed approximately uniformly in a thickness direction of the nonwoven fabric. The nonwoven fabric is substantially free from an adhesive agent. In the nonwoven fabric, each fiber is substantially not melt-bonded to another. The conjugated fiber may comprise a polyalkylene arylate-series resin and a modified polyalkylene arylate-series resin and have a side-by-side or eccentric sheath-core form. Since the bimetal form conjugated fibers having specific crimps are appropriately entangled with each other, the nonwoven fabric has a high stretchability and is easily torn by hand, without using scissors. The nonwoven fabric is suitable for a tape such as a bandage or a supporter.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2007 Application Filing Year
- D04H Class
- 174 Applications Filed
- 97 Patents Issued To-Date
- 55.75 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- D04H Class
- 10.31 % this patent is cited more than
- 12 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 27, 2025 |
