Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1974-12-02
1977-04-26
Higel, Floyd D.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260206, 260207, 2602071, 260508, 260509, 260556B, C09B 2908, D06P 106, D06P 108, D06P 326
Patent
active
040200531
ABSTRACT:
A series of azo dyes for dyeing polyamide fibrous material are provided by coupling an appropriate diazotized aminobenzene into an appropriately substituted N-alkyl-N-phenylbenzylamine. The dyes are characterized by the presence of one sulfonic acid group, either as the free acid or in salt form, and by the presence of one sulfamyl group. The single sulfonic acid group and single sulfamyl group are positioned interchangeably as a substituent on either the aminobenzene base or the benzyl radical forming a portion of the N-alkyl-N-phenylbenzylamine. When dyed from an appropriate dye bath, these dyes produce dyeings on polyamide fiber material characterized by outstanding lightfastness and excellent transfer properties.
REFERENCES:
patent: 3483180 (1969-12-01), Ramanathan
patent: 3535306 (1970-10-01), Altermatt et al.
patent: 3579497 (1971-05-01), Ramanathan et al.
patent: 3685952 (1972-08-01), Renfrew
Venkataraman, "The Chemistry of Synthetic Fibers," vol. I, p. 270 (1952).
El-Sebai et al., Die Pharmazie, vol. 26, pp. 615-616 (1971).
American Color & Chemical Corporation
Higel Floyd D.
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