Johnson Matthey Public Limited Company

Mario Jaime Castagnola

Paul Richard Phillips

Andrew Francis Chiffey

Raj Rao Rajaram

Andrew Peter Walker

R Bradford Fortner

Kenneth Mahon

A method of coating an end surface of a monolithic substrate with a liquid is described and an apparatus therefor. The method comprises: (a) conveying a monolithic substrate to or toward a coating roller; and (b) applying a liquid onto an end surface of the monolithic substrate by contacting the end surface with the coating roller loaded with the liquid.

Method and apparatus for coating an end surface of a monolithic substrate

A substrate monolithhaving a length L and comprising a first zoneof substantially uniform length defined at one end by a first end of the substrate monolith, which first zone comprising a selective catalytic reduction (SCR) catalyst for reducing oxides of nitrogen with a nitrogenous reductant in exhaust gas emitted from an internal combustion engine and a second zoneof substantially uniform length less than L defined at one end by a second end of the substrate monolith, which second zone comprising (a) at least one particulate metal oxide or a mixture of any two or more thereof for trapping gas phase platinum group metal (PGM), which at least one particulate metal oxide does not act as a support for any other catalytic component; or (b) a component capable of trapping and/or alloying with gas phase PGM.

Substrate monolith comprising SCR catalyst

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Audubon, PA, United States of America

Mario Jaime Castagnola