Dyestuffs derived from triphenylmethane, their preparation and u

Details Dyestuffs derived from triphenylmethane, their preparation and u Dyestuffs derived from triphenylmethane, their preparation and u

1977-03-21

1981-08-25

Douglas, Winston A.

Bleaching and dyeing; fluid treatment and chemical modification

Dye or potential dye composition, additive, treatment,...

Basic dye containing strongly basic onium or alkylene imine...

260393, C09B 1110

Patent

active

042856965

ABSTRACT:
Dyestuffs of the formula: ##STR1## in which R.sub.2 and R.sub.4 which are the same or different each represent a hydrogen atom or an alkyl, hydroxyalkyl or cyanethyl group, one of the substituents R.sub.1 and R.sub.3 represents the 2,2,2-trifluoroethyl group and the other substituent represents an alkyl group or the 2,2,2-trifluoroethyl group, the ring A is unsubstituted by or substituted by one or 2 chlorine atoms or an alkoxy or alkyl group, the rings B.sub.1 and B.sub.2 are each unsubstituted or substituted by at least one alkyl or alkoxy group and X represents a colorless monovalent anion; process for the preparation of such dyestuffs; process for the coloration with such dyestuffs based on a polymer or copolymer of acrylic nitrile or on polyamides or polyesters which have been modified by anionic groups; and fibres based on a polymer or copolymer of acrylic nitrile or on polyamides or polyesters which have been modified by anionic groups colored by means of such dyestuffs.

REFERENCES:
patent: 2466008 (1949-04-01), Dickey
patent: 2466009 (1949-04-01), Dickey
patent: 2516106 (1950-07-01), Dickey
patent: 3535347 (1970-10-01), Bitterli
patent: 3538105 (1970-11-01), Yamaya et al.
patent: 3828071 (1974-08-01), Kast et al.
Ono, S. "N-[Bis(p-dimethylaminophenyl) methyl] anilines" in Chem. Abs., vol. 67, 1967, p. 11153, 118097y.
Dronkina, M. et al. "Triphenylmethane dyes containing bis(trifluoromethyl)amino groups" vol. 80, 1974, 134887e, Article dated 1973 prior to U.S. Filing date.

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