Henkel Kommanditgesellschaft Auf Aktien

Henkel Kgaa

Alfred Struve

Joachim Schindler

Frank F Hill

Rolf Schmid

Wolfgang Preuss

Karl Heinz Schmid

Horst Hoeffkes

Alfred Meffert

Juergen Geke

Horst Upadek

Robert Piorr

Bert Gruber

Horst Baumann

Kurt Seidel

Karl Giede

Gerhard Borggrefe

A process for the isolation and purification of essentially fatty acid mixtures, which in addition to the methyl branched fatty acids contain saturated and unsaturated, respectively straight chain as well as methyl branched, unsaturated fatty acids, in which the industrial fatty acid mixtures are first hydrogenated by catalysis and then the methyl branched saturated fatty acids are separated, and in which before the hydrogenation if necessary, a separation by the hydrophilization process is provided, this process produces the desired products with a high yield and purity.

Process for the recovery of methyl-branched, saturated C.sub.14 -C.sub.24 -

An aqueous or aqueous-alcoholic composition useful for washing or rinsing hair which contains a water-soluble ionic polymer and from about 0.1 to 20% by weight of a water soluble salt of a di- or tri-carboxylic acid containing from 6 to 44 carbon atoms. The ionic polymers may be cationic, anionic, amphoteric or zwitter-ionic. Preferred di- or tri-carboxylic acids are those in which two of the carboxyl groups are separated from one another by at least 3 carbon atoms. The composition further includes a quaternary ammonium compound as a preferred component. Hair rinses preferably contain as an additional ingredient from about 0.1 to 10% by weight of a water-insoluble cosmetic oil or fat component, while shampoos additionally contain from about 1 to 25% by weight of anionic, ampholytic, zwitter-ionic or nonionic surfactant.

Preparations for washing or rinsing hair containing di- or tri-

A method for corrosion inhibition in oil or oil emulsions comprising adding thereto a corrosion-inhibition-effective amount of at least one salt corresponding to the general formula ##STR1## in which R.sup.1 is a linear or branched C.sub.8-36 alkyl or C.sub.8-36 alkenyl or a mono- or polyethoxylated C.sub.8-18 alkyl containing from 1 to 10 ethoxy groups,

Salts of esters of long-chain fatty alcohols with alpha-sulfofatty acids

The C.sub.2-4 -alkanolamine salts of alkenyl succinic acid dialkyl semiamides are used as corrosion inhibitors in aqueous systems.

Alkanolamin salts of alkenyl succinic acid dialkyl semiamide corrosion

This invention relates to a process for the preparation of a concentrate containing sterol compounds of natural origin, which concentrate is suitable as a starting material for the transformation of sterol compounds by fermentation, which comprises the steps of:

Transformation of sterols by fermentation

A process for the conjugation of the double bonds of polyunsaturated fatty acids or mixtures of fatty acids containing polyunsaturated fatty acids comprising treating said fatty acids with SO.sub.2 in the presence of substoichiometric amounts of soap-forming bases in a closed reaction vessel or in a reaction vessel equipped with a reflux condenser, at a temperature range of from 170.degree. C. to 260.degree. C.; particularly wherein the process is performed in the presence of from 0.5 to 25 mol % of SO.sub.2, 0.5 to 25 mol % of soap-forming alkali metal and/or alkaline earth metal compounds, and 0.05 to 2% by weight, based on the fatty acid starting material, of water.

Process for the conjugation of the double bonds of polyunsaturated fatty

Sterol concentrates, the preparation thereof, and their use in the

For the production of 17-C-steroid-.alpha.-propionic acid compounds by microbial side chain degradation on 17-C-side chain steroid substrates wild strain microorganisms selected in predetermined manner are subjected to a multi-stage mutation and selection. The resultant mutant strains are capable of supplying the desired compounds, e.g. .DELTA.-4 BNC and/or .DELTA.-1,4 BNC in high yields even in the absence of inhibitors arresting the growth and/or degradation of the steroid ring. Wild strains and mutants particularly suitable, and their choice, production and use, are described.

Process for the preparation of defective mutants of microorganisms

A process for the production of useful steroids obtained by side chain degradation of sterol source materials through the use of microorganisms is described.

Steroid production

A method for isolating sterols from the distillation residues of industrial fat processing comprising transesterifying said residues with methanol and then isolating said sterols from the transesterification mixture by adduct formation with CaCl.sub.2 in an aprotic solvent and with slight addition of a protic solvent.

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Hilden, Germany

Alfred Struve