05179059 is referenced by 24 patents and cites 7 patents.

A catalyst for purifying the exhaust gases of internal combustion engines with improved light-off behavior and improved durability with reduced specific noble-metal content is disclosed which uses active aluminum oxide provided with customary promoters as carrier and platinum and/or palladium and rhodium in customary amounts as noble metals. In addition, it contains one or more base metals in amounts up to 5 times the mass of the total noble metal which are brought into the immediate vicinity of the rhodium by means of a special manufacturing technique.

Title
Catalyst for purifying the exhaust gases of internal combustion engines and method for making the catalyst
Application Number
7/658280
Publication Number
5179059
Application Date
January 31, 1991
Publication Date
January 12, 1993
Inventor
Edgar Koberstein
Alzenau
DE
Peter Schubert
Grenzach-Wyhlen
DE
Felix Schmidt
Rheinfelden
DE
Bernd Engler
Hanau
DE
Rainer Domesle
Alzenau-Kalberau
DE
Agent
Beveridge DeGrandi & Weilacher
Assignee
Degussa
DE
IPC
B01J 23/89
B01J 23/10
B01J 21/06
B01J 21/04
View Original Source