Patent · US Active

Composite body and use thereof in organophilic nanofiltration

US12397267B2 · kind B2 · utility

0Cited by

34References

12Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Christian Hying · Rhede, DE
Oliver Conradi · Düsseldorf, DE
Dirk Poppe · Frankfurt am Main, DE
David Grzenia · Westbury, US
Kira Khaletskaya · Düsseldorf, DE

Key dates

Filing date	Jan 6, 2021
Grant date	Aug 26, 2025
Priority date	—
Expiry date	Jun 6, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A composite body comprising a porous layer (1) made from oxide particles connected to one another and partially to a substrate, containing at least one oxide of the elements Al, Zr, Ti or Si, and comprising a further porous layer (2) at least on one side, having oxide particles connected to one another and partially to the layer (1) and containing at least one oxide of the elements Al, Zr, Ti or Si, wherein the oxide particles in the layer (1) have a greater average particle size (d50 is 0.5 to 4 μm) than the oxide particles in the layer (2) (d50 is 0.015 to 0.15 μm), characterised in that a polymer coating (PB) is provided on or above the layer (2), containing one or more polysiloxanes. A method for producing corresponding composite bodies and to the use thereof.

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