Fluorinated nonionic surfactants

Details Fluorinated nonionic surfactants Fluorinated nonionic surfactants

1977-12-07

1979-10-16

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252 805, 252 857, 252DIG1, 560153, 560154, B01F 1736, C07C 6940

Patent

active

041712820

ABSTRACT:
The perfluoroalkylthio-substituted half esters and amides of succinic acid having the formula ##STR1## wherein R.sub.f is a perfluoroalkyl, R.sup.1 alkylene optionally interrupted with oxygen, sulfur or nitrogen atom, X is oxygen or NH, y is zero or 1, Q is a polyether or polyester diradical moiety having a molecular weight of 300 to 5000 or a polysiloxane having 5 to 80 repeating units and A is hydrogen, hydroxyl, amino, alkoxy of 1 to 21 carbons, phenoxy, alkylphenoxy of 7 to 20 carbons, dialkylamino where each alkyl has 1 to 18 carbons or the group ##STR2## said compounds being prepared by first reacting maleic anhydride with a polyether, polyester, diamine or a polysiloxane derivative of an alcohol or a primary amine and then reacting the product with a perfluoroalkyl alkylene thiol. The novel compounds are useful as surfactants with specific applications as wetting agents in coatings, waxes, emulsions, paints and resins.

REFERENCES:
patent: 2341846 (1944-02-01), Meincke
patent: 3172910 (1965-03-01), Brace
patent: 3471518 (1969-10-01), Hager
patent: 3706787 (1972-12-01), Hager
patent: 4042522 (1977-08-01), Falk
patent: 4069244 (1978-01-01), Mueller

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