High loft spunbonded web
US8240484B2 · kind B2 · utility
25Cited by
17References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2012 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Mar 15, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/681
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Herein are disclosed high loft spunbonded webs that are substantially free of crimped fibers and gap-formed fibers. The webs exhibit a solidity of from less than 8.0% to about 4.0% and a ratio of Effective Fiber Diameter to Actual Fiber Diameter of at least 1.40. Also disclosed are methods of making such webs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.