Process for mass coloring thermoplastic plastics

Details Process for mass coloring thermoplastic plastics Process for mass coloring thermoplastic plastics

1982-09-03

1983-09-20

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524605, 524606, C08L 7700, C08L 6702

Patent

active

044057342

ABSTRACT:
The invention relates to a process for coloring water-insoluble thermoplastic plastics with dyestuffs of the formula ##STR1## The dyestuffs are added to the melt of the thermoplastic plastic or to its precursors.

REFERENCES:
patent: 2988402 (1961-08-01), Geiger et al.
patent: 3043843 (1962-07-01), Koch

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