C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
8/26.2
C09B 67/18 (2006.01) C09B 29/01 (2006.01) C09B 67/26 (2006.01) C09B 69/04 (2006.01)
Patent
CA 2002726
1-17300/= Concentrated dye solutions Abstract Concentrated dye solutions of dyes of the formula (1) shown in claim 1 are described. The dye solutions are notable for a long shelf life and are suitable in particular for dyeing paper.
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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