Patent · US Active

Method for the coating of a diesel particle filter and diesel particle filter produced thereby

US8431186B2 · kind B2 · utility

4Cited by

0References

17Claims

0Family size

Assignee

UMICORE AG & CO. KG · DE

Inventors

Gerald Jeske · Neuberg, DE
Marcus Pfeifer · Mannheim, DE
Wolfgang Schneider · Marl, DE
Franz Dornhaus · Scheinfeld, DE
Ralf Mueller · Aulendorf, DE
Michael Schiffer · Hanau, DE

Key dates

Filing date	Feb 17, 2009
Grant date	Apr 30, 2013
Priority date	—
Expiry date	Oct 16, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N3/035
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

To equip a diesel particle filter with a zeolite-containing coating uniformly over the entire length of the particle filter and with a further zeolite-free coating which is applied, from the entry side of the filter, solely up to a specific length of the filter, it is proposed, first, to apply the zeolite-free coating from the entry side of the filter and only thereafter to apply the zeolite-containing coating over the entire length of the filter from the exit side of the filter. As a result of this sequence of coatings, a better adhesive strength of the coatings than when both coatings are applied from the entry side is ensured.

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