Nanofiltration membrane
AssigneeLANXESS Deutschland GmbH
InventorsMartin Mechelhoff, Thomas Fruh, Christopher Kohl
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Abstract
The invention relates to a nanofiltration membrane having a porous support membrane, the surface of the support membrane being coated with polymer particles which are prepared by emulsion polymerization and which have an average particle diameter of less than 70 nm, preferably between 30-60 nm, more preferably between 40-50 nm.
Claims27
Nanofiltration membrane having a porous support membrane, characterized in that the surface of the support membrane is coated with polymer particles which are prepared by emulsion polymerization and have an average particle diameter of less than 70 nm, preferably between 30-65 nm, more preferably between 40-50 nm.
Process for producing a nanofiltration membrane having a porous support membrane according to any of the preceding claims, characterized in that a dispersion (latex) of polymer particles which are prepared by emulsion polymerization is applied to the support membrane, and a polymer layer (separation-active layer) is formed on the support membrane.
Use of polymer particles which are prepared by emulsion polymerization and have an average particle diameter of less than 70 nm, preferably 30-60 nm, more preferably 40-50 nm for producing a nanofiltration membrane according to any of the preceding claims.
Use of the nanofiltration membrane according to any of the preceding claims for the food, chemical or biochemical industry.
Dependencies are inferred from the claim text.