06576748 is referenced by 96 patents and cites 28 patents.

Disclosed is a process for preparing a diazopyridone compound either (A) of the formula

or (B) of the formula

which comprises diazotizing a dianiline and coupling it with a pyridone or diazotizing an aniline and coupling it with a dipyridone.

Title
Method for making dimeric azo pyridone colorants
Application Number
10/185828
Publication Number
6576748 (B1)
Application Date
June 27, 2002
Publication Date
June 10, 2003
Inventor
Roger E Gaynor
Oakville
US
George Liebermann
Mississauga
US
Paul F Smith
Oakville
US
Jeffrey H Banning
Hillsboro
OR, US
James M Duff
Mississauga
US
James D Mayo
Mississauga
US
Rina Carlini
Mississauga
US
Agent
Judith L Byorick
US
Assignee
Xerox Corporation
CT, US
IPC
C09B 33/12
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