公开(公告)号：CA3018122A1

公开(公告)日：2017-09-28

申请号：CA3018122

申请日：2017-03-20

Applicant: BASF SE

Inventor： BOS MENNO ,  HEIJNEN MARTIN ,  WIDJOJO NATALIA

IPC: B01D67/00 ,  B01D69/02 ,  B01D69/08 ,  B01D69/12 ,  B01D71/68 ,  D01D5/247

Abstract: The present invention is related to a method for fabricating multilayer singlebore membranes (10) or multilayer multibore membranes (20) for ultrafiltration applications including the following method steps: (a)feeding at least a material of a substrate (12), at least one material of a functional layer (14, 15) and a bore fluid (36) to a spinneret (30) simultaneously; (b)forming said membranes (10, 20) as a tube-like string (54) in a one-step process in said spinneret (30); (c)thereby assigning a functionality to said functional layer (14, 15) applied on at least one surface (13, 17) of said substrate (12). The invention is also related to a spinneret (30) for fabricating multilayer singlebore membranes (10) or multilayer multibore membranes (20), using the inventive method, and to a system com- prising such a spinneret (30).