Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2007-09-18
2007-09-18
Lorengo, J. A. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S238000, C502S239000, C502S240000, C428S450000, C428S469000, C428S325000, C428S697000, C428S702000, C427S180000, C427S202000, C427S205000
Reexamination Certificate
active
10757684
ABSTRACT:
A coated metal substrate useful for carrying an exhaust emission treatment catalyst such as a three-way conversion catalyst for use with small engine platforms. The coated metal substrate comprises a metal such as a stainless steel, a carbon steel, a FeCr alloy, HASTELLOY® and the like. The coating on the metal substrate comprises an alumina silicate having alumina particles impregnated therein. The coating is applied using a liquid dispersion containing an aluminum silicate and the alumina particles are dispersed into the aluminum silicate coating while the coating is still wet. The coated metal substrate is then calcined. Thereafter, a washcoat containing an engine exhaust treatment catalyst may be applied to the surface of the coated metal substrate.
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Galligan Michael Patrick
Kim Young Gin
Brown Melanie L.
Engelhard Corporation
Hailey Patricia L.
Lorengo J. A.
Negin Richard A.
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