Method for the production of a pigment preparation for coloring

Details Method for the production of a pigment preparation for coloring Method for the production of a pigment preparation for coloring

1979-07-20

1981-07-21

Ziegler, J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 326R, 260 328R, 260 334R, 260 40R, C08L 6700

Patent

active

042798027

ABSTRACT:
The invention provides a method for the production of a pigment preparation for coloring linear polyesters in the melt, which comprises forming a concentrate from 20 to 80 parts of pigment and 80 to 20 parts of a polyester which melts between 60.degree. and 160.degree. C., by kneading in the presence of a salt and a solvent or by a flush process, mixing said concentrate with a fibre forming linear polyester, melting the mixture and processing it to granules. The invention also provides the pigment preparation obtained by the process and the linear polyesters colored therewith.

REFERENCES:
patent: 2868663 (1959-01-01), Jarmus
patent: 4012358 (1977-03-01), Cardenas et al.

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