Liquid separation membrane module
US6454942B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Jan 18, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D63/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A liquid separation membrane module includes a semipermeable membrane receiving a pressure of a feed liquid, and a channel material arranged so as to support the back side of the semipermeable membrane. The channel material is a tricot knitted fabric knitted by a tricot knitting machine with two reeds and has a ground stitch portion and a convex portion. The tricot knitted fabric includes a thermoplastic synthetic filament yarn with a core/sheath type conjugated fiber having a high melting point polymer as a core component and a low melting point polymer as a sheath component. Thermoplastic synthetic filament yarns for forming the ground stitch portion and the convex portion have a substantially same fineness, and the yarns in the tricot knitted fabric are bonded with one another by melt adhesion of the low melting point component to rigidity the entire knitted fabric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.