Partially fluorinated sulfonated surfactants

Details Partially fluorinated sulfonated surfactants Partially fluorinated sulfonated surfactants

C - Chemistry, Metallurgy

07

C

C07C 309/17 (2006.01) C11D 1/12 (2006.01)

Patent

CA 2725763

The present invention comprises a compound comprising Formula 1A, 1B, or 1C: (R a -O-CO-)2X Formula 1A, R a O-CO-X-CO-O-(CH2CH2)R f Formula 1B, R a -O-CO-X-CO-O-R Formula 1C wherein R a is the group R f(CH2CF2)a-(C g H 2g)-; R f OCF2CF2-(C g H2g)-; R f OCFHCF2O(CH2CH2)v-(C g H2g)-; R f OCFHCF2O(C w H2w); R f OCF(CF3)CONH-(C g H2g); or R f(CH2)h[(CF2CF2)i(CH2CH2)j]k; R f is C c F(2c+1); d is 1 to about 3; g is 1 to 4; v is 1 to about 4; w is from about 3 to about 12; h is 1 to about 6; i, j, and k are each independently 1, 2, or 3, or a mixture thereof; provided that the total number of carbon atoms in group (vi) is from about 8 to about 22; X is a linear or branched difunctional alkyl sulfonate group -C e H(2e-1)(SO3M)-, wherein e is 2 or 3; M is a monovalent cation selected from the group consisting of hydrogen, ammonium, alkali metal, or alkaline earth metal; R is H or a linear or branched alkyl group C b H(2b+1)-; and b is from 1 to about 18.

La présente invention concerne un composé répondant à la formule 1A, 1B ou 1C : (Ra-O-CO-)2X Formule 1A, Ra-O-CO-X-CO-O-(CH2CH2)Rf Formule 1B, Ra-O-CO-X-CO-O-R Formule 1C où Ra est le groupe Rf(CH2CF2)d-(CgH2g)-; RfOCF2CF2-(CgH2g)-; Rf OCFHCF2O(CH2CH2)v-(CgH2g)-; RfOCFHCF2O(CwH2w); RfOCF(CF3)CONH-(CgH2g); ou Rf(CH2)h[(CF2CF2)i(CH2CH2)j]k; Rf est CcF(2c+1); d est compris entre 1 et 3 environ; g est compris entre 1 et 4; v est compris entre 1 et 4 environ; w est compris entre 3 environ et 12 environ; h est compris entre 1 et 6 environ; i, j et k sont égaux à 1, 2 ou 3 ou à une combinaison de ces valeurs; pourvu que le nombre total d'atomes de carbone dans le groupe (vi) soit compris entre 8 environ et 22 environ; X est un groupe sulfonate alkyle difonctionnel linéaire ou ramifié -CeH(2e-1)(SO3M)-, où e est égal à 2 ou à 3; M est un cation monovalent sélectionné dans le groupe incluant l'hydrogène, l'ammonium, un métal alcalin ou un métal alcalino-terreux; R est H ou un groupe alkyle linéaire ou ramifi

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