Meltblown fabric
US5273565A · kind A · utility
62Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1992 |
| Grant date | Dec 28, 1993 |
| Priority date | — |
| Expiry date | Oct 14, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/44
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A meltblown web is composed of fibers having a narrow fiber size distribution (expressed as % coefficient of variation of the average fiber diameter) and low packing density. The web is characterized as a soft lofty web and exhibits exceptional filtration capability. The web preferably comprises fibers having an average fiber size of between 3 and 10 microns and a packing density of between 5 to 15%, and a CV of 15 to 40%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.