C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
260/159, 8/4
C09B 35/378 (2006.01) C09B 35/35 (2006.01) C09B 67/36 (2006.01) D21H 17/09 (2006.01) D21H 21/28 (2006.01)
Patent
CA 1327567
Trisazo dyes and process for dyeing paper Abstract of the Disclosure The dyes of formula Image (1) wherein R, M, X, Y and n are as defined in claim 1, are preeminently suitable for dyeing paper in blue shades.
606189
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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