Patent · US Expired

Process for mass coloring thermoplastic plastics

US4405734A · kind A · utility

6Cited by

2References

4Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Otto Fuchs · Frankfurt am Main, DE
Adolf Kroh · Bad Camberg, DE
Wolfgang Teige · Kelkheim, DE

Key dates

Filing date	Sep 3, 1982
Grant date	Sep 20, 1983
Priority date	—
Expiry date	Sep 3, 2002

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01F1/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.