Synthetic filter media and method for manufacturing same
US5898981A · kind A · utility
14Cited by
12References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1997 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Apr 14, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2323/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composite filter media (100) includes a meltblown fiber material and a nonwoven filter web which are preferably attached to each other by needling the nonwoven filter web with the meltblown fiber material. A netting (104) is then attached by preferably needling the nonwoven filter web and meltblown through the netting (104).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.