Loom processing of hollow fiber membranes

US5598874A · kind A · utility

Assignee

• MG Generon · US

Inventors

• Philip E. Alei · Oceanside, US
• Jeff C. Schletz · Clayton, US
• John A. Jensvold · Benicia, US
• Ward E. TeGrotenhuis · Kennewick, US
• Wickham Allen · Midland, US
• Frederick L. Coan · Antioch, US
• Karen Skala · Davis, US
• Daniel O. Clark · Pleasanton, US
• Harold V. Wait, Jr. · Midland, US

Key dates

• Filing date: Aug 11, 1995
• Grant date: Feb 4, 1997
• Expiry date: Aug 11, 2015

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D10B2331/14
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Hollow fiber membrane modules are manufactured by weaving hollow fiber membranes into a web while the fibers still contain a residual amount of the organic liquids used in the extrusion of the fibers. The web once formed is then passed through a final solvent extraction stage, followed by drying and heating to fix the final form and permeation characteristics of the membranes, and finally rolling the web into a bundle which forms the interior of the module. The hollow fibers are woven as fill in the web.