Patent · US Active

Hollow fiber membrane and method for manufacturing thereof

US8596467B2 · kind B2 · utility

8Cited by

13References

10Claims

0Family size

Assignee

GAMBRO LUNDIA AB · SE

Inventors

Bernd Krause · Liederbach, DE
Hermann Gohl · Bisingen, DE
Markus Hornung · Nehren, DE
Carina Zweigart · Schömberg, DE

Key dates

Filing date	Oct 11, 2007
Grant date	Dec 3, 2013
Priority date	—
Expiry date	Sep 26, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2325/022
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention concerns a semipermeable hollow fiber membrane having an outer wall surface, an inner wall surface and an interior lumen extending along the length thereof and having the selective layer on the outer wall surface with a surface roughness below 10 nm. According to the invention the membrane has the smallest pore size on the outer wall surface, and has an outer wall surface which is smooth, continuous and homogeneous in a nanoscopic scale and four to five distinct layers of different pore size and density. Further the present invention concerns a process for manufacturing thereof and the use thereof.

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