Trisazo black dyes from 2-(4'-aminophenylazo)-7-amino-1-naphthol

Details Trisazo black dyes from 2-(4'-aminophenylazo)-7-amino-1-naphthol Trisazo black dyes from 2-(4'-aminophenylazo)-7-amino-1-naphthol

1986-06-27

1988-04-12

Higel, Floyd D.

Paper making and fiber liberation

Processes and products

Non-fiber additive

8436, 8527, 8550, 8581, 8584, 8585, 8594, 8611, 8641, 514150, 534573, 534582, 534666, 534680, 534728, 534815, 534887, 534583, C09B 3116, C09B 3126, C09B 3322, D06P 106

Patent

active

047372400

ABSTRACT:
Black trisazo dyes for cellulosic textiles, leather and especially paper having the structure ##STR1## where A is ##STR2## one of B.sub.1 and B.sub.2 is hydrogen and the other is --SO.sub.3 M or a mixture thereof, and M is hydrogen, sodium, potassium, lithium or --HNR.sub.1 R.sub.2 R.sub.3 wherein R.sub.1, R.sub.2 and R.sub.3 represent the same or different substituents selected from hydrogen, lower alkyl and lower hydroxyalkyl, and stable liquid concentrates of these dyes are described.

REFERENCES:
patent: 679221 (1901-07-01), Ernst
patent: 1740801 (1929-12-01), Wolfsleben
patent: 1762020 (1930-06-01), Kahn
patent: 1876848 (1932-09-01), Brightman
patent: 1877800 (1932-09-01), Brightman
patent: 1906754 (1933-05-01), Jordan
patent: 1989472 (1935-01-01), Clingestein et al.
patent: 3078266 (1963-02-01), Hanhart
patent: 3679353 (1972-07-01), Streck
patent: 4097476 (1978-06-01), Wicki
patent: 4443571 (1984-04-01), Brulard et al.
patent: 4479906 (1984-10-01), Zeidler et al.
The Chemistry of Synthetic Dyes, vol. VIII, (1978), p. 313, Vankataraman.
Colour Index, 3rd Edition, vol. 4, pp. 4293 to 4295 (1971).

Affiliated with

Also associated with

Rating

Trisazo black dyes from 2-(4'-aminophenylazo)-7-amino-1-naphthol does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Trisazo black dyes from 2-(4'-aminophenylazo)-7-amino-1-naphthol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trisazo black dyes from 2-(4'-aminophenylazo)-7-amino-1-naphthol will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1427832