D - Textiles – Paper – 01 – D
Patent
D - Textiles, Paper
01
D
D01D 5/247 (2006.01) B01D 63/02 (2006.01) B01D 67/00 (2006.01) B01D 69/08 (2006.01) B01D 69/14 (2006.01) B01D 71/68 (2006.01) C08J 3/24 (2006.01) C08J 3/28 (2006.01)
Patent
CA 2064301
A hollow polysulfonic fiber intended for a selectively transmissive membrane contains a hydrophilic polymer which is cross-linked into a water-insoluble form (for example polyvinylpyrrolidone) and is used in the form of a hydrogel containing water. A method for the production of a membrane module consists in spinning a hollow fiber by the use of a spinning solution containing a polysulfonic resin and a hydrophilic polymer, wetting the fiber above the saturated moisture content, and then, with the wet condition maintained, subjecting the fiber to the processes of module molding and radiation induced cross-linking, these processes being performed in either order. The method provides a selectively transmissive hollow polysulfone fiber membrane which displays less elution into water and a sharp molecular weight fractionation, so as to be usable safely in the fields of medicine and foodstuffs.
Kobayashi Takuichi
Tanaka Kazumi
Smart & Biggar
Toray Industries Inc.
LandOfFree
Selectively transmissive polysulfonic hollow fiber membrane... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Selectively transmissive polysulfonic hollow fiber membrane..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selectively transmissive polysulfonic hollow fiber membrane... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1516885