Coated wall-flow filter

US11441459B2 · kind B2 · utility

Assignee

• UMICORE AG & CO. KG · DE

Inventors

• Naina Deibel · Pfungstadt, DE
• Martin Foerster · Büdingen, DE
• Antje Oltersdorf · Glückstadt, DE
• Juergen Koch · Schifferstadt, DE
• Martin Roesch · Rodgau, DE

Key dates

• Filing date: May 2, 2019
• Grant date: Sep 13, 2022
• Expiry date: May 2, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N2510/06
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a wall-flow filter, to a method for the production and the use thereof in order to reduce harmful exhaust gases of an internal combustion engine. The wall-flow filter was produced by applying a powder-gas aerosol to the filter, whereby the powder was deposited in the pores of the wall-flow filter.