COMPOSITE FOR APPLICATION OF PROTECTIVE MOLECULAR FILM Russian patent published in 2003 - IPC

FIELD: organic chemistry. SUBSTANCE: invention relates to composites that after application forms thin molecular protective film with surface of solid body. The claimed composite contains fluorinated surface- active substance and solvent. The composite contains substance of the general formula: as fluorinated surface-active substance wherein R_F is C_nF_2n+1O; n = 1-8; is (-CF₂-CF₂-CF₂O-)_m or ; m = 3-50; Q is CO- or -SO₂; Z is -OR_H or OH, or -NHR_H, or -N(R_H)₂ wherein R_H is C₁-C₆,-alkyl group and/or fluorinated acid amide of the general formula: C_nF_2n+1CNH₂; n = 3-6 and/or fluorinated acid amidoamine of the general formula: C_nF_2n+1CONH(CH₂)₂N(C₂H₅)₂; n = 3-6 and/or dialkylhydrazine of the general formula: R_FCONHN(R_H)₂ and/or pyrogallol ester of the general formula: , and/or perfluoroenanthic acid of the general formula: C_nF_2n+1COOH; n = 3-8, and/or telomeric acid of the general formula: H(CF₂)_nCOOH; n = 4-10 in the concentration of each fluorinated surface-active substance from 0.03 to 3.0 wt.-%. Polar solvent taken among group methyl alcohol, ethyl alcohol, propyl alcohol, isopropyl alcohol, water, and/or nonpolar solvent taken among C₅-C₁₅,-hydrocarbon class, and/or halogen-containing solvent taken among group: trichloroethylene, tetrachloroethylene, coolant 122 is used as a solvent. Invention allows increasing degree of change of surface energy of solid body and to enhance resistance of prepared covers to corrosive liquid and gaseous media and to provide possibility to regulate thickness of articles. EFFECT: improved and valuable properties of composite. 4 cl, 3 tbl, 3 dwg, 9 ex