Fiber-reactive unsymmetrical 1:2 chromium complex azo dyes

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

260145B, 260150, 260151, 260148, 260147, 260149, 260146R, 260146D, 260146T, 260153, 260154, 260160, 260206, C09B 4548, C09B 6208, C09B 6224, C09B 6250

Patent

active

044168152

ABSTRACT:
Chromium complex dyes which, in the form of the free acid, have the formula ##STR1## wherein Z is hydrogen, nitro, chlorine, or an arylazo group, Q is a nitrogen atom or the CH-- group, A is the radical of a coupling component which couples in the ortho-position to the oxygen atom if Q is a nitrogen atom, or is the radical of an o-hydroaldehyde if Q is the CH-- group, D is a sulfophenyl radical which can be substituted by nitro or chlorine, or a sulfonaphthyl radical which can be substituted by nitro and is bonded to the azo group in the orthoposition to the oxygen atom, and R is a reactive group. These dyes are obtained by chroming the corresponding o,o'-dihydroxyazo compounds or o,o'-dihydroxyazomethine compounds, the reactive radical R being introduced by acylation before or after the chroming. They are suitable for dyeing natural or synthetic polyamide material.

REFERENCES:
patent: 2931794 (1960-04-01), Ruetimeyer et al.
patent: 2943084 (1960-06-01), Buehler et al.
patent: 3308114 (1967-03-01), Blackhall
patent: 3625935 (1971-12-01), Back et al.
patent: 4001203 (1977-01-01), Back et al.
patent: 4024123 (1977-05-01), Dussy et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Fiber-reactive unsymmetrical 1:2 chromium complex azo dyes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fiber-reactive unsymmetrical 1:2 chromium complex azo dyes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber-reactive unsymmetrical 1:2 chromium complex azo dyes will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1814323

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.