US 11,884,764 B2
Membranes for liquid treatment
Jochen Meier-Haack, Dresden (DE); Wladimir Butwilowski, Radebeul (DE); Tim Oddoy, Freital (DE); and Kornelia Schlenstedt, Dresden (DE)
Assigned to LEIBNIZ-INSTITUT FUER POLYMERFORSCHUNG DRESDEN E.V., Dresden (DE)
Filed by LEIBNIZ-INSTITUT FUER POLYMERFORSCHUNG DRESDEN E.V., Dresden (DE)
Filed on Nov. 20, 2020, as Appl. No. 16/953,589.
Claims priority of application No. 10 2019 131 675.8 (DE), filed on Nov. 22, 2019.
Prior Publication US 2021/0163655 A1, Jun. 3, 2021
Int. Cl. C08F 293/00 (2006.01); C08J 5/22 (2006.01); C08J 9/28 (2006.01)
CPC C08F 293/00 (2013.01) [C08J 5/2256 (2013.01); C08J 9/28 (2013.01); C08J 2383/12 (2013.01)] 12 Claims
 
1. Membranes for liquid treatment, comprised at least predominantly of multiblock copolymers of the general formula (1)

OG Complex Work Unit Chemistry
where
X=connection point
E=C2 to C4 alkyl ether
A=other block component not containing silicone
R=C1 to C4 alkyl radical and/or phenyl radical
m=1<m<500
n=0≤n<100
o=1<o<10
p=1<p<10
z=1<z<25,
the molar ratio of the silicone-containing block component and the other block component A in the multiblock copolymer is between 5:1 and 1:5, wherein
the silicon-containing block components are predominately arranged at the surface of the membranes, and
the membranes have a pore size of 1 nm to 1 μm.