Preparation of solutions of azo methine basic dyestuffs

Details Preparation of solutions of azo methine basic dyestuffs Preparation of solutions of azo methine basic dyestuffs

1976-02-11

1981-02-03

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260152, 260155, 260156, 260157, 260158, 260165, 260208, C09B 4300, C09B 4600, D06P 376

Patent

active

042487757

ABSTRACT:
Stable concentrated solutions of basic dyestuffs of the formula ##STR1## wherein R denotes the remaining part of a 5- or 6-membered heterocyclic ring,

REFERENCES:
patent: 3331831 (1967-07-01), Raue et al.
patent: 3345355 (1967-10-01), Raue
patent: 3718642 (1973-02-01), Lehment et al.
patent: 3741982 (1973-06-01), Fujino et al.
patent: 3769279 (1973-10-01), Kulthau et al.
patent: 3773764 (1973-11-01), Lehment et al.
patent: 3829418 (1974-08-01), Raue et al.
patent: 3840518 (1974-10-01), Schmitt et al.

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