Patent · US Active

Process for producing a polymer membrane, and polymer membrane

US8276764B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH

Inventors

Detlev Fritsch · Reinbek, DE
Gisela Bengtson · Hamburg, DE
Katrin Ebert · Ebern, DE
Joachim Koll · Munich, DE
Petra Merten · Lauenburg/Elbe, DE

Key dates

Filing date	Sep 6, 2007
Grant date	Oct 2, 2012
Priority date	—
Expiry date	Sep 16, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/00162
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a process for producing a polymer membrane, the polymer membrane being produced from a solution, in particular a casting solution, comprising at least one first polymer. The invention further relates to a polymer membrane. The process of the invention is distinguished by the fact that a water-soluble second polymer and/or oligomer that forms phases in the solution is part of the solution. The polymer membrane of the invention, preferably produced by the process of the invention, has an oil flow rate, in particular of a refined edible oil, of greater than 200 l/m2 h bar at 60° C.

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