Melt-blown fiber web with improved concentration force and elasticity and method and apparatus for manufacturing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 17, 2020
Grant Date -
Nov 30, 2017
app pub date -
Aug 8, 2017
filing date -
Nov 8, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed is a melt-blown fiber web with improved concentration force and elasticity, whereby a melt-blown fabric is cut and sealed at predetermined intervals using knives having arbitrary patterns so that concentration force and elasticity of the melt-blown fiber web can be improved without degrading the inherent function of the fiber web. Further disclosed are a method and apparatus for manufacturing the melt-blown fiber web. The melt-blown fiber web includes thermoplastic filaments, wherein cutting portions and sealing portions are arranged on top and bottom surfaces of the fiber web at predetermined intervals along a thickness of the fiber web so that a concentration force and elasticity of the fiber web are improved.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- D04H Class
- 441 Applications Filed
- 244 Patents Issued To-Date
- 55.33 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- D04H Class
- 0 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 17, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 17, 2032 |
