Abstract: Shaped PU foam articles, preferably mattresses and/or cushions, wherein the polyurethane foam has been obtained by reaction of at least one polyol component and at least one isocyanate component in the presence of at least one compound of formula (1a) and at least one compound of formula (1b) and at least one blowing agent, are described.

Abstract: The polymerization of cycloalkenamer is stopped by adding an alkyl vinyl derivative. Subsequently compound A is added, wherein compound A has at least one of the features i) or ii): i) at least one functional group or ii) at least one saturated or unsaturated aliphatic or aromatic heterocyclic ring having 3 to 14 ring atoms, wherein the ring atoms contain at least one carbon atom and at least one atom selected from oxygen, nitrogen and sulfur. A membrane filtration is subsequently carried out. This type of production produces polyalkenamers which are temperature-stable at 180° C.

Abstract: A process produces a C3- to C20-alkyltrialkoxysilane by hydrosilylation, wherein alkoxy represents methoxy, ethoxy or propoxy. Initially, a mixture is charged of at least one hydroalkoxysilane from the group of hydrotrialkoxysilane, hydroalkyldialkoxysilane, and hydrodialkylalkoxysilane, and a Pt catalyst. The mixture is then heated to a temperature of 30° C. to 60° C. Subsequently, with mixing, an omega-unsaturated or mono-unsaturated C3- to C20-hydrocarbon, at least one carboxylic acid and at least one alcohol as cocatalysts are added to the mixture. The mixture is then reacted and subsequently worked up to obtain the product.

Abstract: Contaminated wastewater from the preparation of isophorone, isophoronenitrile and isophoronediamine is treated by A) 1. treating the wastewater from the preparation of isophoronenitrile from the reaction of isophorone with hydrogen cyanide by alkaline hydrolysis of isophoronenitrile to isophorone, and the salts of hydrogen cyanide within a pH range of 12.0 to 13.7 and at temperatures of 60 to 200° C. and 2. processing the wastewater from A) 1. by an oxidation, or B) treating the wastewater from the preparation of isophoronenitrile from the reaction of isophorone with hydrogen cyanide by an oxidation, or C) processing the wastewater from A) 1. and the wastewater from the preparation of isophorone and/or the wastewater from the preparation of isophoronediamine by an oxidation.

Abstract: The present invention relates to an oligomerization catalyst for oligomerization of low-molecular-weight olefins, to the use of said catalyst and to a process for oligomerization of low-molecular-weight olefins using the oligomerization catalyst according to the invention.

Abstract: The invention relates to a process for producing an oligomerization catalyst comprising nickel oxide and a silicon-alumina support material, wherein the silica-alumina support material is in the ammonium form. The present invention further relates to a process for oligomerization of C3- to C6-olefins using the oligomerization catalyst produced according to the invention.

Abstract: The present invention relates to at least one cell for producing at least one lipid with general formula II from at least one carbon substrate, wherein R1 and R2 independently of one another comprises identical or different organic radicals each with 5 to 13 carbon atoms, wherein the cell is a non-pathogenic cell that is genetically modified to increase the heterologous expression relative to the wild type cell of: an enzyme (E2) capable of converting 3-hydroxyalkanoyl-3-hydroxyalkanoyl-CoA/ACP or 3-(3-hydroxyalkanoyloxy)alkanoic acid (HAA) and NDP-glucose into ?-D-glucopyranosyl-3-hydroxyalkanoyl-3-hydroxyalkanoate.

Abstract: A composition is used for producing novel types of foam in that they combine specifically good flame-retardant properties with a good elongation at break. These novel types of foam are produced from a blend of polyether sulphone (PES) and polyphenylene sulphone (PPSU).

Abstract: An ester mixture of trialkyl esters of cyclohexane-1,2,4-tricarboxylates having isomeric pentyl radicals in which more than 5 mol % of the isomeric pentyl radicals are branched.

Abstract: Compositions suitable for production of polyurethane foams, comprising at least one OH-functional compound (OHC) obtainable by the partial or complete hydrogenation of ketone-aldehyde resins, wherein the OH-functional compound contains at least one structural element of the formula (1a) and optionally of the formulae (1b) and/or (1c), with R=aromatic with 6-14 carbon atoms, (cyclo)aliphatic with 1-12 carbon atoms, R1=H, CH2OH, R2=H, or a radical of the formula —(CH2—CH(R?)O—)y—H where R? is hydrogen, methyl, ethyl or phenyl and y=1 to 50, k=2 to 15, preferably 3 to 12, more preferably 4 to 11, m=0 to 13, preferably 0 to 9, l=0 to 2, where the sum of k+l+m is from 5 to 15, preferably from 5 to 12, and k>m, are described.

Abstract: In a process for the epoxidation of propene, comprising continuously reacting a propene feed with hydrogen peroxide in the presence of an epoxidation catalyst in a reaction step, using propene in excess to hydrogen peroxide, to provide a liquid reaction mixture comprising non-reacted propene, extra safety measures caused by the presence of oxygen during work-up of the liquid reaction mixture of the epoxidation reaction can be avoided by stripping liquid reaction mixture from step a) with an inert gas to provide an oxygen depleted stripped liquid reaction mixture and a strip gas stream, selecting the amount of inert gas to provide an oxygen concentration in the strip gas stream in the range of from 0.1 to 10% by weight, separating non-reacted propene from the strip gas stream and recycling it to the reaction step, and separating propene oxide from the stripped liquid reaction mixture.

Abstract: The invention provides a process for preparing an alcohol by hydrogenating an ester which is obtained by alkoxycarbonylating a C2 to C20 hydrocarbon having at least one multiple bond, preferably having at least one olefinic double bond, in which the homogeneous catalyst system used is separated from the product mixture by means of membrane separation. In a development of the present invention, the ester thus formed is converted to another ester by transesterification and then hydrogenated.

Abstract: The invention relates to a process for separating one or more components from a mixture by a membrane separation in which—depending on the component to be separated—an acid or a base is added to the mixture before the membrane separation.

Abstract: The invention relates to a process for preparing an ester by alkoxycarbonylation of a C2 to C20 hydrocarbon having at least one multiple bond, preferably having at least one olefinic double bond, in which the homogeneous catalyst system used is separated from the product mixture by means of membrane separation and recycled into the reaction zone. In a development of the present invention, the ester thus formed is converted into another ester by transesterification.

Abstract: The invention relates to a process for preparing carboxylic acids or salts thereof by hydrolysis or saponification of an ester, which is obtained by alkoxycarbonylation of a C2 to C20 hydrocarbon having at least one multiple bond, preferably having at least one olefinic double bond, in which the homogeneous catalyst system used is separated from the product mixture by means of membrane separation. In a development of the present invention, the ester thus formed is converted into another ester by transesterification and then hydrolyzed or saponified.

Abstract: A method includes at least two-stage process for the oligomerization of short-chain olefins in the presence of a catalyst, wherein the regeneration of the catalyst is stage-customized.

Abstract: The invention relates to functionalized polymers, a process for producing functionalized polymers and the use of functionalized polymers, especially in the field of personal care.

Abstract: The present invention relates to a formulation comprising: i) at least one hydrolysate of at least one compound of formula (I) RSi(OX)3 (I) where X, the same or different, is H, C1-C4 alkyl or acyl, R=OX, OH, C1-C4 alkyl or alkoxy silyl-substituted ethylene radical, ii) at least one hydrolysate of at least one polyisocyanurate bearing alkoxy silyl alkyl units, iii) at least one polymer bearing hydroxyl groups, and iv) a solvent mixture containing water comprising at least one alcohol with 1 to 4 carbon atoms, wherein the pH value of the formulation lies in a range from 1.8-4.7, preferably from 3-4.5, and the content of the polymer bearing hydroxyl groups ranges from 13 wt. % to 33 wt. % related to the solids content in the formulation. The invention further relates to a method for the production of said formulation, the use thereof in the production of laminate structures and corresponding laminate structures having at least two layers comprising the formulation.

Abstract: The invention provides for a composition comprising elemental platinum and/or at least one platinum-containing compound, where said platinum has a positive oxidation state, and one or more organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms, wherein at least one of said compounds comprises at least one olefinic unsaturation, characterized in that said composition comprises a proportion of organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms of from 50.0 to 99.9 wt % and a proportion of the sum of elemental platinum and platinum-containing compounds of from 0.1 to 50.0 wt % in each case based on the composition, with the proviso that the proportions of organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms and of elemental platinum and platinum-containing compounds sum to at least 90 wt % based on the composition and the proviso that the olefinic unsaturation content is at least 0.

Abstract: The present invention relates to a process for the production of perhalogenated hexasilane anion by reacting halogenated monosilane in the presence of organosubstituted ammonium and/or phosphonium halide at temperatures in a range from 100 to 120° C., wherein no solvent is used, and a process for the production of a cyclic silane compound of the formula Si6R12, by reacting [X]2[Si6Cl14] with AlR3 in at least one organic solvent, wherein R is chlorine or methyl and X, the same or different, is a counter-cation and is preferably selected from organosubstituted ammonium, organosubstituted phosphonium, alkali metal ions and [(PEDETA)(H2SiCl)]+.