Abelman Frayne and Schwab
Polymeric cationic dyes including a quaternized pyridinium group
 Polymeric cationic dyes wherein the same or different monomer components represented by the following formula (1) are linked at the terminal amino groups by a crosslinking agent: EQU H.sub.2 N--A--CH.dbd.CH--B (1) in which A represents a substituted or unsubstituted benzene ring and B represents the radical of a quaternized methylene active compound. The dyes are used in particular for dyeing paper. 
Nippon Chemical Works Co., Ltd.
Y C C D
Y10S C09B C09B D21H
additional inventional inventional inventional
Koichi
Taniguchi