Patent ID: 6699485
Filing Date: 2004-03-02
Classification: A61K,A61P,A61Q,C08G

Abstract:
Cosmetic formulations with oil and water repellent properties prepared by diluting with carriers and excipients a monophase composition consisting essentially of the following components:A) a (per)fluoropolyether phosphate of the general formula: Rfâ€”[CF2CH2â€”Oâ€”Lâ€”P(O)(OZ1)(OZ2)]lâ€ƒâ€ƒ(I) â€ƒwherein l=1 or 2; L is a divalent linking group; Z1 is equal to or different from Z2, both of which are selected from H, alkaline or ammonium cation, di- or tri-alkanolammonium cation wherein alkanol comprises from 1 to 20 C atoms, di- or tri- or tetra-alkylammonium cation wherein alkyl comprises from 1 to 20 C atoms, or Rfâ€”CF2CH2â€”Oâ€”Lâ€”; Rf is a (per)fluoropolyether chain comprising repeating units selected from one or more of the following: a) â€”(C3F6O)â€”; b) â€”(CF2CF2O)â€”; c) â€”(CFL0O)â€”, wherein L0=â€”F, â€”CF3; d) â€”CF2(CF2)zâ€²CF2Oâ€”, wherein zâ€² is an integer 1 or 2; e) â€”CH2CF2CF2Oâ€”; and when Rf is monofunctional (l=1), an end group is of the perfluoroalkyl type selected from CF3O, C2F5O, C3F7O, and, optionally, a fluorine atom in the perfluoroalkyl end groups is substituted by a chlorine or hydrogen atom; B) a solvent selected from the group consisting of ethanol, ethylene glycol, isopropanol, propanol, acetone, methoxyethanol, propyleneglycol, propan-1,2-diol, dimethoxy methane, methoxy-isoPropanol, diethylene glycol, butan-1,4-diol, diethylenglycol monoethyleneether, pentan-1,2-diol, diethylen-glycol monoethylether, dipropylenglycol, dipropylenglycol monomethylether, dipropylenglycol monoethylether; C) water; wherein said monophasic composition is diluted in carriers and excipients and wherein the percentage by weight of component A) is in the range of 20%-40%, that of component B) is in the range of 30-70% and water in the range of 5-30%, and wherein the sum of A)+B)+C) in the monophase is 100%.