Alkali-fast disazo disulfimide dyes

Details Alkali-fast disazo disulfimide dyes Alkali-fast disazo disulfimide dyes

1971-04-02

1979-08-28

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260191, 260196, 260205, 260556SN, C09B 3106, C09B 3308, C09B 3310, D06P 324

Patent

active

041660595

ABSTRACT:
Alkali-fast yellow to scarlet disazo water-soluble dyes for natural and synthetic polyamide fibers having the structure: ##STR1## wherein n is 1 or 2; A represents an alkyl radical or an aromatic radical such as phenyl, tolyl, naphthyl, or halophenyl; R.sub.1 represents H, halogen, --O-- lower alkyl or alkyl; B represents phenyl, substituted phenyl or naphthyl; R.sub.4 represents H, lower alkyl having --O-- lower alkyl or halogen; R.sub.5 represents H, lower alkyl or --O-- lower alkyl, and R.sub.6 represents methyl or ethyl.

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patent: 3485814 (1969-12-01), Speck
Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 7, 1966, pp. 469, 487 and 490-492.
Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 2, 1964, pp. 869-874.
Chemical Abstracts, vol. 74, 1971, 88661c (Sommer, et al.), an abstract of the Sommer, et al. German patent.

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