| US 7,476,417 B2 | ||
| Method of manufacturing monolithic catalysts | ||
| Joseph C. Dettling, Howell, N.J. (US); Victor Rosynsky, Ewing, N.J. (US); and Chung-Zong Wan, Somerset, N.J. (US) | ||
| Assigned to BASF Catalysts LLC, Florham Park, N.J. (US) | ||
| Filed on Jan. 24, 2007, as Appl. No. 11/626,658. | ||
| Application 11/626658 is a continuation of application No. 09/873979, filed on Jun. 01, 2001, abandoned. | ||
| Application 09/873979 is a continuation of application No. 09/067820, filed on Apr. 28, 1998, abandoned. | ||
| Application 09/067820 is a continuation in part of application No. 09/067831, filed on Apr. 28, 1998, granted, now 5,953,832. | ||
| Application 09/067831 is a continuation in part of application No. 08/962363, filed on Oct. 31, 1997, granted, now 5,866,210. | ||
| Application 08/962363 is a continuation of application No. 08/668385, filed on Jun. 21, 1996, abandoned. | ||
| Prior Publication US 2007/0116870 A1, May 24, 2007 | ||
| Int. Cl. B05D 7/22 (2006.01); B05D 1/36 (2006.01); B05D 1/38 (2006.01); B05D 3/04 (2006.01); B05D 3/12 (2006.01); F26B 3/04 (2006.01) | ||
| U.S. Cl. 427—238 [427/256; 427/258; 427/348; 427/350] | 21 Claims |
| 1. A method of coating a substrate comprising an inlet end, an outlet end, wall elements extending between the inlet end to
the outlet end and a plurality of axially enclosed channels defined by the wall elements, at least some of the channels having
a channel inlet at the inlet end and a channel outlet at the outlet end, the method comprising:
passing at least a first inlet fluid composition into the inlet end of the substrate to form at least a first inlet end layer
on the walls and extending for only part of the length from the inlet end toward the outlet end, the first inlet fluid composition
comprising at least one first inlet base metal oxide component and at least one first inlet precious metal component; and
applying a vacuum to the outlet end while forcing a heated gas stream through the channels from the inlet end after the formation
of each inlet end layer without significantly changing the length of each inlet layer, wherein the temperature of the heated
gas is from about 200° C. to about 400° C. to fix the first inlet precious metal component.
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