Hollow fiber capillary membrane and method for the production thereof

US9149770B2 · kind B2 · utility

Assignee

• Fresenius Medical Care Deutschland GmbH · DE

Inventors

• Rainer Fislage · Namborn, DE
• Klaus Heilmann · Sankt Wendel, DE
• Torsten Keller · Prüm, DE
• Holger Lichau · Mücke, DE
• Igor Raiko · Bad Homburg vor der Höhe, DE
• Roland Sander · Sankt Wendel, DE

Key dates

• Filing date: Apr 21, 2008
• Grant date: Oct 6, 2015
• Expiry date: Nov 1, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2325/0283
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A hollow fiber membrane made of two coextruded layers A and B, wherein layer B has a non-woven type structure having a mesh size of 0.1 to 10 μm and layer A has a porous structure. A method for producing a membrane according to the invention and the use thereof is also disclosed.