Abstract:
The novel compounds have the formula below in which Rf denotes a perfluoroalkyl radical having 4 to 20 C atoms, x denotes 1 to 4, y denotes 1 to 10, X denotes Br, Cl or I, and R and R denote hydrogen or a C1- to C4-alkyl radical or a water-solubilising aliphatic radical, with the proviso that at least one of the two substituents R and R is a water-solubilising aliphatic radical. The surface-active compounds described are prepared by reaction of a suitable epoxide with a suitable amine. They are used in particular for the preparation of foaming agents.
Abstract:
Perfluoroalkyl-containing epoxides of the formula 1 in which Rf is a perfluoroalkyl-containing radical, X is halogen, a is 1 to 4 and b is 0 to 20, are prepared by reacting a fluoroalcohol/ epihalohydrin adduct of the formula 2 in which Rf, X, a and b have the meanings mentioned, with alkali metal hydroxide or alkaline earth metal hydroxide in the form of an aqueous solution in the presence of phase-transfer catalysts and at a pH of 9 to 12. The perfluoroalkyl-containing epoxides are those of the formula 3 in which Rf, X and a have the meanings mentioned and b is 1 to 20. The epoxides in question are advantageous monomers for the preparation of fluorine-containing epoxy resins and epoxy copolymers, which in turn are good finishing agents for textiles and leather.
Abstract:
Ammonium compounds of the formula (I) (I) in which at least one of the radicals R1 to R4 denotes a fluorine-containing alkyl radical having 4 to 30 carbon atoms and not more than three of the radicals R1 to R4 independently of one another denote hydrogen atoms or alkyl or hydroxyalkyl radicals having 1 to 30 carbon atoms, and R5 to R8 denote aryl, alkylaryl or halogenoaryl radicals or fluorine atoms, and iminium compounds of the formula (II) (II) in which Q, together with the constituent forms a ring system having 4 to 17 carbon atoms, which can be interrupted by 1 to 4 hetero atoms and contain 2 to 9 double bonds, and which can be substituted by fluorine, chlorine, bromine or iodine atoms or alkyl (C1-C6), alkoxy (C1-C6), nitro or amino groups, R9 denotes a fluorine-containing alkyl (C1-C30) radical, R10 denotes a hydrogen, fluorine, chlorine, bromine or iodine atom or an alkyl(C1-C6), alkoxy (C1-C6), nitro or amino group and the radicals R11 to R14 denote aryl radicals, alkylaryl radicals, halogenoaryl radicals or fluorine atoms, and mixtures of these compounds and processes for their preparation.
Abstract:
The novel urethanes are synthesised from aliphatic fluoroalcohol, isocyanate and a specific substituted phenol or aniline compound. They are prepared by reaction of an aliphatic fluoroalcohol with a di- or triisocyanate to form a fluoroalcohol/isocyanate adduct and by reaction of this adduct with a specific substituted phenol or aniline to give the desired urethanes. The urethanes are preferably used for the oleophobic and hydrophobic finishing of textiles and leather.
Abstract:
The novel urethanes are composed essentially of fluoroalcohol-isocyanate adducts as the fluoro component and a polysiloxane component, the two components being combined in a structurally specific manner. The novel urethanes are prepared by reacting the fluoroalcohol-isocyanate adducts with the polysiloxane in a molar ratio of 1 to 2:1 at a temperature of 30 DEG to 130 DEG C. The novel urethanes are preferably used for finishing textiles, to which they also impart the property of a soft handle in addition to good hydrophobicity and oleophobicity. They are also suitable for finishing leather, skins and wood.
Abstract:
The novel urethanes correspond to the formula I below in which a denotes a number from 5 to 17 and b denotes a number from 1 to 7. These urethanes are prepared by reaction of the corresponding perfluoroalkylethanol-epichlorohydrin adducts with toluylene diisocyanates. The novel aqueous dispersions consist essentially of the novel urethanes, cationic or betainic and non-ionic emulsifiers, water-insoluble carboxylic acid and/or dicarboxylic acid esters and alkanediols or polyalkanediols, which can be mono- or dietherified, in water. The novel urethanes and the novel aqueous dispersions are used for the oleophobic and hydrophobic finishing of textiles, leather and unvarnished wood, for example unvarnished furniture.