WO2003087110-A1  See also references of EP 1495035A1;  YAGUPOL' SKII L M: "Electrochemical fluorination of trialkylphosphine oxides" JOURNAL OF GENERAL CHEMISTRY OF THE USSR, CONSULTANTS BUREAU, NEW YORK, NY, US, Bd. 54, Nr. 4, PART 1, April 1984 (1984-04), Seiten 692-695, XP002125736 ISSN: 0022-1279;  CHEMICAL ABSTRACTS, vol. 84, no. 15, 12. April 1976 (1976-04-12) Columbus, Ohio, US; abstract no. 105768, SEMENII, V. YA. ET AL: "Bis (perfluoroalkyl)phosphinic acids" XP002246199 in der Anmeldung erw hnt & SU 498 311 T (INSTITUTE OF ORGANIC CHEMISTRY, ACADEMY OF SCIENCES, UKRAINIAN S.S.R.,) 5. Januar 1976 (1976-01-05);  CHEMICAL ABSTRACTS, vol. 84, no. 15, 12. April 1976 (1976-04-12) Columbus, Ohio, US; abstract no. 105768, SEMENII, V. YA. ET AL: "Bis (perfluoroalkyl)phosphinic acids" XP002246199 in der Anmeldung erw{hnt & SU 498 311 T (INSTITUTE OF ORGANIC CHEMISTRY, ACADEMY OF SCIENCES, UKRAINIAN S.S.R.,) 5. Januar 1976 (1976-01-05);  MAHMOOD, TARIQ ET AL: "Comparative study of tris(trifluoromethyl) phosphine oxide, tris(nonafluorobutyl) phosphine oxide and fluorobis(nonafluorobutyl) phosphine oxide with ammonia and amines" INORGANIC CHEMISTRY (1988), 27(17), 2913-16 , 1988, XP001148249 in der Anmeldung erw hnt;  MAHMOOD, TARIQ ET AL: "Comparative study of tris(trifluoromethyl) phosphine oxide, tris(nonafluorobutyl) phosphine oxide and fluorobis(nonafluorobutyl) phosphine oxide with ammonia and amines" INORGANIC CHEMISTRY (1988), 27(17), 2913-16 , 1988, XP001148249 in der Anmeldung erw{hnt;  PAVLENKO N.V. ET AL.: "Esters of bis(perfluoroalkyl)phosphinic acids" JOURNAL OF GENERAL CHEMISTRY USSR., Bd. 59, Nr. 3, 20. August 1989 (1989-08-20), Seiten 474-476, XP002246156 CONSULTANTS BUREAU. NEW YORK., US;  CHEMICAL ABSTRACTS, vol. 84, no. 15, 12. April 1976 (1976-04-12) Columbus, Ohio, US; abstract no. 105768, SEMENII, V. YA. ET AL: "Bis (perfluoroalkyl)phosphinic acids" XP002246199 in der Anmeldung erwaehnt & SU 498 311 T (INSTITUTE OF ORGANIC CHEMISTRY, ACADEMY OF SCIENCES, UKRAINIAN S.S.R.,) 5. Januar 1976 (1976-01-05);  MAHMOOD, TARIQ ET AL: "Comparative study of tris(trifluoromethyl) phosphine oxide, tris(nonafluorobutyl) phosphine oxide and fluorobis(nonafluorobutyl) phosphine oxide with ammonia and amines" INORGANIC CHEMISTRY (1988), 27(17), 2913-16 , 1988, XP001148249 in der Anmeldung erwaehntUS7202379-B2  Chemical Abstracts, vol. 84, No. 15, Apr. 12, 1976, Columbus, Ohio, US, abstract No. 105768, Semenii, V. Ya et al.: "Bis (Perfluoroalkyl) Phosphinic Acids".;  Kovaleva et al. Perfluoroalkylphosphonic Acids and Their Derivatives. Journal of General Chemistry USSR, Bd. 59, Nr. 3, 1989, p. 2245-2248.;  Mahmood, Tariq et al.: "Comparative Study of Tris (Trifluoromethyl) Phosphine Oxide, Tris (Nonafluorobutyl) Phosphine Oxide and Fluorobis (Nonafluorobutyl) Phosphine Oxide with Ammonia and Amines" Inorganic Chemistry (1988), 27(17, 2913-16.;  Pavlenko N.V. et al.: "Esters of Bis(Perfluoroalkyl) Phosphinic Acids" Journal of General Chemistry USSR., Bd 59, Nr. 3, Aug. 20, 1989, pp. 474-476.;  Yagupol' Skii L M; "Electrochemical Fluorination of Trialkylphosphine Oxides" Journal of General Chemistry of the USSR, Consultants Bureau, New York, NY, US Bd. 54, Nr. 4, Part. 1, Apr. 1984, pp. 692-695.EP1495035-B1  YAGUPOL' SKII L M: "Electrochemical fluorination of trialkylphosphine oxides" JOURNAL OF GENERAL CHEMISTRY OF THE USSR, CONSULTANTS BUREAU, NEW YORK, NY, US, Bd. 54, Nr. 4, PART 1, April 1984 (1984-04), Seiten 692-695, XP002125736 ISSN: 0022-1279;  CHEMICAL ABSTRACTS, vol. 84, no. 15, 12. April 1976 (1976-04-12) Columbus, Ohio, US; abstract no. 105768, SEMENII, V. YA. ET AL: "Bis (perfluoroalkyl)phosphinic acids" XP002246199 in der Anmeldung erwaehnt&SU 498 311 T (INSTITUTE OF ORGANIC CHEMISTRY, ACADEMY OF SCIENCES, UKRAINIAN S.S.R.,) 5. Januar 1976 (1976-01-05);  MAHMOOD, TARIQ ET AL: "Comparative study of tris(trifluoromethyl) phosphine oxide, tris(nonafluorobutyl) phosphine oxide and fluorobis(nonafluorobutyl) phosphine oxide with ammonia and amines" INORGANIC CHEMISTRY (1988), 27(17), 2913-16 , 1988, XP001148249 in der Anmeldung erwaehnt;  PAVLENKO N.V. ET AL.: "Esters of bis(perfluoroalkyl)phosphinic acids" JOURNAL OF GENERAL CHEMISTRY USSR., Bd. 59, Nr. 3, 20. August 1989 (1989-08-20), Seiten 474-476, XP002246156 CONSULTANTS BUREAU. NEW YORK., US;  KALIBABCHUK N.N. ET AL: 'Use of 19F NMR for the investigation of micelle formation in aqueous solutions of ammonium perfluoroalkylphosphonate' THEORETICAL AND EXPERIMENTAL CHEMISTRY Bd. 11, Nr. 6, 1975, Seiten 700 - 703, XP009085723 ISSN: 0040-5760;  KALIBABCHUK N.N. ET AL: 'The effect of charge of the counterion on micellar and thermodynamic characteristics of anion-active SAM' SOVIET PROGRESS IN CHEMISTRY Bd. 44, Nr. 1, 1978, Seiten 65 - 67, XP009085719 ISSN: 0038-5743