Exhaust filter with active plugs

US10898856B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Christian Bischof · Corning, US
• David Robert Heine · Seminole, US
• Ameya Joshi · Horseheads, US
• Barbara Anna Oyer · Hornell, US
• Todd Parrish St Clair · Riverside, US
• Patrick David Tepesch · Corning, US

Key dates

• Filing date: Sep 2, 2015
• Grant date: Jan 26, 2021
• Expiry date: Sep 1, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A ceramic honeycomb body having intersecting walls that form channels extending axially from a first end face to a second end face and plugs to seal the channels at least at one of the first end face and the second end face. The plugs include a first active component, such as a catalytically active component or a chemically active component, of the plug structure, wherein the intersecting walls comprise no first active component and optionally have a second active component of the wall structure or disposed on the walls. Included are methods of making the ceramic honeycomb body having plugs of the first active component and walls with no first active component.