Patent · US Expired

Membrane and the use thereof

US7306754B2 · kind B2 · utility

2Cited by

17References

14Claims

0Family size

Assignee

UNIVERSITY OF TWENTE · NL

Inventors

Bernd Krause · Liederbach, DE
Christel Mohlenkamp · Haren (Ems), DE
Hylke Sijbesma · Dordrecht, NL
Heiner Strahtmann · Tübingen, DE
Matthias Wessling · Enschede, NL

Key dates

Filing date	Jun 15, 2001
Grant date	Dec 11, 2007
Priority date	—
Expiry date	Dec 22, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2323/10
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a membrane that consists of a polymer or a polymer mixture. The aim of the invention is to produce membranes, especially planar membranes or hollow fiber membranes that have an as high a separation efficiency as possible while simultaneously having a high membrane efficiency. To this end, the membrane has a gas- or liquid-permeable bicontinuous foam structure with orifices in the interior whose diameters do not exceed 500 nm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.