Process for coloring linear polyesters in the melt

Details Process for coloring linear polyesters in the melt Process for coloring linear polyesters in the melt

1981-05-20

1982-08-17

Clingman, A. Lionel

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

Synthetic resins

Processes of preparing a desired or intentional composition...

8637, 8679, 260374, 524605, C09B 100, C08L 6700

Patent

active

043447678

ABSTRACT:
The invention relates to a process for coloring linear polyesters in the melt. The process comprises the use of 1-hydroxy-4-phenylaminoanthraquinones of the formula ##STR1## wherein one X is a hydrogen atom and the other is an alkylsulfonyloxy or chloroalkylsulfoxy group and Y is a hydrogen or halogen atom or an alkyl group. The violet shades obtained are distinguished by excellent color strength and purity and also by good fastness properties.

REFERENCES:
patent: 3421828 (1969-01-01), Kolliker et al.
patent: 4001169 (1977-01-01), Cheetham et al.
patent: 4176113 (1979-11-01), Wick et al.
patent: 4284411 (1981-08-01), Neeff et al.
Venkataraman's "The Chemistry of Synthetic Dyes", vol. V (Academic Press), 1971, pp. 313-474.

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