Wetlaid-spunbond laminate membrane support
US7051883B2 · kind B2 · utility
3Cited by
18References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2003 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | Mar 1, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/689
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Nonwoven fabric laminates suitable for use as semipermeable membrane supports are provided. The fabric laminates generally include at least two layers: a spunbond layer of continuous filament fibers and a wet-laid layer of discontinuous filaments. The resulting semipermeable membrane supports provide an advantageous balance of properties, including smoothness, porosity, interlaminar adhesion, and flux properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.