High-strength meltblown polyester webs
US7468335B2 · kind B2 · utility
18Cited by
7References
13Claims
0Family size
Inventors
Key dates
| Filing date | Mar 31, 2006 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Mar 31, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/68
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A meltblown web of polymeric polyester fibers, where the polyester polymer includes an aromatic dicarboxylic acid, a butanediol, and at least one additional branched or cycloaliphatic diol compound. The webs of the invention achieve high tensile strength values, and are particularly suitable for use as filter media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.