Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-12-19
1977-03-29
Thomas, Jr., James O.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
2602948F, 260429R, 2604299, 260431, 26050115, 26050121, 260503, 260507R, 252526, 252545, 252DIG11, C07C14308
Patent
active
040149269
ABSTRACT:
The invention is directed to fluorinated alkylamido sulfonic acids and salts of the formula ##STR1## where R.sub.f is straigt or branched chain perfluoroalkyl of 1 to 18 carbon atoms or perfluoroalkyl substituted by perfluoroalkoxy of 2 to 6 carbon atoms, R.sub.1 is hydrogen or lower alkyl and each of R.sub.2, R.sub.4 and R.sub.5 is individually hydrogen or a hydrocarbon radical, and R.sub.6 is alkylene, alkylenethioalkylene, alkyleneoxyalkylene or alkyleneiminoalkylene with a secondary or tertiary nitrogen atom. R.sub.3 is hydrogen, alkyl, aryl or pyridyl, M is hydrogen, a monovalent alkali metal, an alkaline earth metal, an organic base or ammonium, and n is an integer corresponding to the valency of M. Said compounds are prepared by a base catalyzed addition reaction of the thiol, R.sub.f -R.sub.6 SH, to an alkyenylamido sulfonic acid salt. The compounds are useful as surfactants and as levelling agents in floor polish formulations.
REFERENCES:
patent: 3235549 (1966-02-01), Broussalian
patent: 3544597 (1970-12-01), Killam
patent: 3798265 (1974-03-01), Bartlett
Dear Robert Ernest Arthur
Kleiner Eduard Karl
Chan Nicky
Ciba-Geigy Corporation
Shust Nestor W.
Thomas, Jr. James O.
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