Abstract: The invention provides a process for preparing siloxanes modified with organic esters, by hydrosilylating siloxanes with terminally unsaturated esters, which comprises preparing the terminally unsaturated esters used using at least one enzyme as catalyst.

Abstract: The use of ester quats in compositions, the ester quats producing a sand-repellent action for the compositions, comprising cosmetic compositions, and the use of these cosmetic compositions having a sand-repellent action for topical application, for example for protection of the skin against ultraviolet radiation are provided. The present application in particular relates to the use of at least one ester quat based on alkanolamines in compositions, the ester quats producing a sand-repellent action for the compositions, and the acyl component of the ester quats being derived from (a) monocarboxylic acids, (b) dicarboxylic acids, (c) tricarboxylic acids, or their mixtures.

Abstract: The present invention relates to a newly identified hydrolase from thermophilic microorganisms having thermostable properties, and more specifically, to a novel thermostable hydrolase showing high activity at high temperatures.

Abstract: The present invention relates to an ester quat of a defined structure useful for the preparation of cosmetic and pharmaceutical oil-in-water emulsions, and to oil-in-water emulsions which comprise said ester quat.

Abstract: The invention provides a process for preparing amino acid esters and/or their acid addition salts from monomeric or polymeric amino acids, peptides, proteins and alcohols, which comprises carrying out the reaction in supercritical alcohols, preferably at pressures and temperatures which are at least 5% above the critical parameters, the alcohols serving both as the solvent and as reactants.

Abstract: The invention relates to a process for preparing highly concentrated flowable and pumpable aqueous solutions of betaines by quaternization of compounds containing tertiary amine nitrogen with ?-halocarboxylic acids by known processes, wherein 0.1 to less than 3% by weight, preferably 0.1 to 1% by weight, based on the end product, of one or more micellar thickeners are added to the reaction mixture before or during the quaternization reaction.

Abstract: The invention provides a process for preparing siloxanes modified with organic esters, by hydrosilylating siloxanes with terminally unsaturated esters, which comprises preparing the terminally unsaturated esters used using at least one enzyme as catalyst.

Abstract: The invention relates to a process for preparing highly concentrated flowable and pumpable aqueous solutions of betaines by quaternization of compounds containing tertiary amine nitrogen with ?-halocarboxylic acids by known processes, wherein 0.1 to less than 3% by weight, preferably 0.1 to 1% by weight, based on the end product, of one or more micellar thickeners are added to the reaction mixture before or during the quaternization reaction.

Abstract: The invention relates to UV-light-absorbing quaternary polysiloxanes in which quaternary groups and UV-absorbing radicals can be mixed independently of one another according to the general formula (I)

Abstract: The present invention relates to an enzymatic process for the preparation of hydroxy fatty acid esters which are solid at room temperature and have improved melting behavior. Specifically, the enzymatic process includes reacting di- or polyols having at least two primary and optionally secondary or tertiary, hydroxyl groups, and hydroxy fatty acids and/or hydroxy fatty acid alkyl esters, and optionally, removing water of reaction or alcohol of reaction which forms.

Abstract: The invention relates to essentially water-insoluble amphiphilic particles or molecules having predominantly hydrophilic and predominantly hydrophobic domains distributed anisotropically over their surface and a particle size ranging from 1 nm to 100 &mgr;m, consisting of antagonistic partial amounts of particles or molecules, which in each case have predominantly hydrophilic or predominantly hydrophobic domains, the partial amounts of the particles or molecules being agglomerated or associated over polar interactions or hydrogen bonds, as well as to a method for producing these particles or molecules and to the selective use of the particles or molecules.

Abstract: The present invention provides a defined alkylpolyglucoside having a degree of oligomerization of at least 1.7 to 3 and an alkyl radical comprising 8 carbon atoms, and mixtures of this alkylpolyglucoside with further alkylpolyglucosides, as cleaner concentrate. The present invention also relates to compositions which include the defined alkylpolyglucoside and a concentrated alkali metal hydroxide solution as well as a method of using the composition as a cleaner.

Abstract: Cosmetic and dermatological emulsions having at least one aqueous phase, comprising (a) an effective amount of one or more interface-active substances, selected from the group consisting of alkyl glucosides, which are characterized by the structural formula  in which R is a branched or unbranched alkyl radical having from 4 to 24 carbon atoms, (b) where in at least one of the aqueous phases one or more electrolytes is present in dissolved form, the ionic strength of the aqueous phases in which the electrolyte(s) is/are present in dissolved form being at least 0.075 mol/l, (c) and where {overscore (DP)} is an average degree of glucosylation of up to 2.