US 12,458,927 B2
Hollow fiber membrane and method for closing the same
Dirk Volmering, Aachen (DE); and Klaus Vossenkaul, Aachen (DE)
Assigned to MEMBION GMBH, Roetgen (DE)
Filed by MEMBION GMBH, Roetgen (DE)
Filed on May 1, 2024, as Appl. No. 18/652,528.
Application 18/652,528 is a continuation of application No. PCT/EP2022/080374, filed on Oct. 31, 2022.
Claims priority of application No. 102021128878.9 (DE), filed on Nov. 20, 2021.
Prior Publication US 2024/0350976 A1, Oct. 24, 2024
Int. Cl. B01D 63/02 (2006.01)
CPC B01D 63/023 (2013.01) [B01D 63/024 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for closing an end section of a hollow fiber membrane, the hollow fiber membrane including a lumen and wall radially enveloping the lumen, the wall including an inner textile layer, the method comprising:
feeding a low viscosity resin by positive pressure through an end face of the hollow fiber membrane into the end section of the hollow fiber membrane and closing the end face with an outer free surface of the resin; and
curing the resin after a time period at the most of 5 seconds by UV light,
wherein the resin is arranged exclusively within the hollow fiber membrane afer the curing.