Compositions pigmented with N-substituted 1,4-diketopyrrolo-[3,4

Details Compositions pigmented with N-substituted 1,4-diketopyrrolo-[3,4 Compositions pigmented with N-substituted 1,4-diketopyrrolo-[3,4

1986-01-29

1987-05-19

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Nontextile, dyeing process or product, including inorganic...

8512, 8514, 8513, 8516, 8637, 8922, 8924, 8928, 548453, 548455, C07D48704, D06P 354

Patent

active

046664556

ABSTRACT:
Compounds of the formula ##STR1## in which R.sub.1 and R.sub.2 are unsubstituted or substituted phenyl or naphthyl, and R.sub.3 and R.sub.4 are alkyl, alkoxycarbonyl, phenyl, benzoyl or benszl, are suitable for dyeing high molecular weight organic material.

REFERENCES:
patent: 4415685 (1983-11-01), Iqbal et al.
patent: 4490542 (1984-12-01), Iqbal et al.
patent: 4579949 (1986-04-01), Rochat et al.
patent: 4585878 (1986-04-01), Jost et al.

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