Esters of cellulose with phosphonic acid dyes having a sulfonami

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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260199, 260200, 260201, 2605024R, 536 34, C09B 6282, D06P 104, D06P 138, D06P 334

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active

041500210

ABSTRACT:
Dyes of the formula ##STR1## are disclosed which are useful in dyeings where the phosphonic acid group serves both as a water-solubilizing group and as a group capable of reacting to bond covalently with the fiber to be dyed. Application of the dyes to cellulose results in reactive dyeing by immobilization of the dye as a cellulose phosphonate ester. The dye substituent is a chromophore, e.g. an anthraquinone or azo chromophore, while R may be hydrogen or lower alkyl.

REFERENCES:
patent: 2959582 (1960-11-01), Schimmelschmidt et al.
patent: 3947435 (1976-03-01), Pekmeze et al.
Arbuckle et al., Chemical Abstracts, vol. 61, 10814 to 10815 (1964).
Durand et al., Chemical Abstracts, vol. 61, 16202c (1964).

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