.beta.-modification of 1-(2,4-dinitro-6-chloro-phenylazo)-2-prop

Details .beta.-modification of 1-(2,4-dinitro-6-chloro-phenylazo)-2-prop .beta.-modification of 1-(2,4-dinitro-6-chloro-phenylazo)-2-prop

1989-08-21

1991-08-06

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

534855, 534887, C09B 6748, C09B 2908, D06P 118, D06P 336

Patent

active

050379623

ABSTRACT:
The .beta.-modification, which is stable under dyeing conditions, of the dyestuff of the formula ##STR1## is prepared by heating the .alpha.-modification, which is unstable under dyeing conditions, at temperatures of 60.degree. to 180.degree. C. and the .beta.-modification is useful in printing and dyeing fiber materials of cellulose esters, synthetic linear polyesters or mixed fabrics of the polyester fiber material with wool or viscose staple.

REFERENCES:
patent: 4319880 (1982-03-01), Opitz et al.
patent: 4460375 (1984-07-01), Sommer et al.
patent: 4523926 (1985-06-01), Brandt et al.
patent: 4795807 (1989-01-01), Buhler et al.
patent: 4802889 (1989-02-01), Buhler et al.
Haehnle et al., Chemical Abstracts, vol. 98, No. 90978a (1983).
Tappe et al., Chemical Abstracts, vol. 107, No. 135880k (1987).

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