Basic indoline dyestuffs

Details Basic indoline dyestuffs Basic indoline dyestuffs

1979-05-11

1981-01-20

Randolph, John D.

Harness for working animal

544105, 542465, C09B 1900, C09B 2310

Patent

active

042464048

ABSTRACT:
Basic dyestuffs free of sulphonic acid groups contain an indoline group the 2-position of which is connected through a vinylene group to the N-atom of a 2,3-dihydro-4H-1,4-benzoxazine group. The dyestuffs are useful for the dyeing of leather, paper and plastics and, particularly, polyacrylonitrile or acid-modified polyester fibres.

REFERENCES:
patent: 2166736 (1939-07-01), White
patent: 3597424 (1971-08-01), Hunter
patent: 3853859 (1974-12-01), Hunter

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