Process for dyeing high-molecular organic material, and novel po

Details Process for dyeing high-molecular organic material, and novel po Process for dyeing high-molecular organic material, and novel po

1982-03-16

1983-11-15

Jacobs, Lewis T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

106193P, 106253, 524597, 524720, C08K 534

Patent

active

044156855

ABSTRACT:
A process for dyeing high-molecular organic material in the bulk characterized by the use of a 1,4-diketo-pyrrolo[3,4-c]-pyrrole of the formula ##STR1## wherein R.sub.1 and R.sub.2 are isocyclic or heterocyclic aromatic radicals, preferably unsubstituted or substituted phenyl or naphthyl radicals.
The dyeings obtained, for example in plastics, fibres, lacquers and printings, are distinguished by very high coloring strength, high saturation, good dispersibility, good fastness to cross-lacquering, migration, heat, light and weather, and also by a high gloss and a good IR-remission behavior.

REFERENCES:
D. G. Farnum et al., Tetrahedron Letters, 29, 2549, (1974).

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