Cationic alpha-cyano-p-dimethyl aminocinnamoyl dyes

Details Cationic alpha-cyano-p-dimethyl aminocinnamoyl dyes Cationic alpha-cyano-p-dimethyl aminocinnamoyl dyes

C - Chemistry, Metallurgy

09

B

8/4, 260/290.1

C09B 57/00 (2006.01) C09B 23/14 (2006.01) D21H 21/28 (2006.01)

Patent

CA 1073462

ABSTRACT OF THE DISCLOSURE Cationic dyes for paper having the formula Image wherein R is selected from hydrogen and methyl, X is selected from O and NH, n is 2 or 3, and Y? is an anion selected from halide and methosulfate, have improved storage stability in aqueous acid solutions.

275465

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