Abstract: The invention relates to amphiphilic compounds of general formula (I), (R1, R3—C1-C22 hydrocarbon radical, R2—spacer, X, Y—functional groups, Z—1 to 10) with at least two hydrophilic and at least two hydrophobic groups on the basis of amides. The amphiphilic compounds of this invention are highly surface-active and are suitable in particular as emulsifiers, demulsifiers, detergents, dispersants and hydrotropics in industry and household, e.g. in the fields of metalworking, ore extraction, surface treatment, washing and cleaning, cosmetics, medicine and foodstuff processing and preparation.

Abstract: The invention concerns amphiphilic compounds of general formula (I) with at least two hydrophilic and at least two hydrophobic groups based on dicarboxylic acid diamides. The disclosed amphiphilic compounds mostly have a surfactant activity and are useful as emulsifiers, demulsifiers, detergents, dispersants, and hydrotropic agents for industry and household, for example in the fields of metal working, ore mining, surface finishing, washing and cleaning, cosmetics, medicine, foodstuff processing and preparation.

Abstract: The invention relates to amphiphilic compounds of the general formula (I) with at least two hydrophilic and at least two hydrophobic groups based on di, oligo or polyolethers. The amphiphilic compounds of this invention are highly surface active and are suitable as emulsifiers, demulsifiers, detergents, dispersants and hydrotropes for industrial and domestic purposes, e.g. in the fields of metalworking, ore separation, surface treatment, washing and cleaning, cosmetics, medicine and food processing and preparation.

Abstract: The invention relates to esters of certain benzene polycarboxylic acids with 2-alkylalcohols, and their use as hydraulic fluid, as or in lubricant formulations or as an additive in cosmetics.

Abstract: There are provided fluid compositions with particulate solid materials dispersed therein which are characterized by exceptionally low settling tendencies of the dispersed particles. Such compositions containing particulate ferromagnetic solids are useful as magnetorheological fluids.

Abstract: The present invention relates to a process for the manufacture of high-purity alumino-silicates which are dispersible in aqueous and/or aqueous-acidic media by hydrolysis of aluminium compounds and silicic acid compounds and hydrothermal treatment.

Abstract: A process is disclosed for preparing di- or oligoamide alkoxylates. Diamides are prepared from carboxylic acids or carboxylic acid alkyl esters and di-, oligo-, or polyamines and are alkoxylated as a melt directly after their preparation, without any further intermediate preparation process.

Abstract: The present invention relates to the use of anionic gemini tensides of the formula (I) ##STR1## in which R.sup.1 and R.sup.3 are, mutually independently, a hydrocarbon radical with 1 to 22 carbon atoms, R.sup.2 is a spacer containing 0 to 100 alkoxy groups, and X and Y, mutually independently, are functional groups and the degree of substitution Z=1 to 10, in washing, cleaning and body care agents in which the proportion of said tensides amounts to at least 0.1%.

Abstract: This invention relates to a process for producing odourless dimethyl ether (DME) which is thus an excellent propellant. This dimethyl ether is produced from methanol, the methanol feed, prior to the reaction to form dimethyl ether, and/or the dimethyl ether product still containing odorants being treated with acidic materials, preferably acidic ion exchangers.

Abstract: The vaporous reaction product from the continuous reaction of C.sub.3 -C.sub.4 monoalkanols with hydrogen chloride is removed, condensed, and split into a light organic phase and a heavy aqueous phase. The heavy aqueous phase is immediately distilled yielding HCl-containing reaction water at the bottom of the column and an alcohol stream at the head of the column from where it is returned to the synthesis. The light organic phase is washed with water, dried and, optionally, distilled. The water from this washing operation is neutralized, stripped off in order to remove dissolved organic constituents, and removed as waste water from the system.