Abstract: The invention relates to the thermally stable contacting of semiconductive alloys for use in thermoelectric generators and Peltier arrangements by means of soldering, and to processes for producing thermoelectric modules using a barrier layer composed of borides, nitrides, carbides, phosphides and/or silicides.

Abstract: Process for preparing primary amines having a cyclopropyl unit and a primary amino group bound to an aliphatic or cycloaliphatic carbon atom (amine A) by cathodically reducing oximes having a cyclopropyl unit or oxime derivatives in which the hydrogen atom in the oxime group has been replaced by an alkyl or acyl group (oxime O) at a temperature of from 50 to 100° C. in an essentially anhydrous electrolyte solution in a divided electrolysis cell.

Abstract: Disclosed is a method for making nongelled addition polymers, especially carbamate functional additional polymers from linear unsaturated anhydrides. The method comprises reacting an unsaturated linear anhydride with an active hydrogen compound to provide two monomers comprising polymerizable C?C bonds, at least one of said monomers comprising an acid functional group; polymerizing the polymerizable C?C bonds of the two monomers to provide an acid functional polymerization product; and reacting the acid functional polymerization product with an epoxy functional compound to provide a nongelled addition polymer, wherein the disclosed method does not include a step comprising the physical removal of any acid functional monomers or polymerization products. Also disclosed is a curable coating composition containing the resulting carbamate functional polymer, as well as a coated substrate comprising a cured film resulting from the application and curing of the disclosed curable coating composition.

Abstract: The invention relates to a process for distillatively preparing TDA from a reactant stream comprising TDA, high boilers and low boilers in a dividing wall column in which a dividing wall is disposed in the longitudinal direction of the column to form an upper combined column region (2), a lower combined column region (3), a feed section (4) having a rectifying section (5) and stripping section (6), and also a withdrawal section (7) having a rectifying section (9) and stripping section (8), which comprises the following steps: a. feeding the reactant stream (13) into the feed section (4) of the dividing wall column (1); b. drawing off a low boiler fraction via the top of the column (11); c. drawing off TDA via a side draw (14) in the withdrawal section (7) of the dividing wall column (1); d. drawing off a low boiler fraction via the bottom of the column (12).

Abstract: The present invention relates to a process for preparing a polyetherol which comprises reacting at least one alkylene oxide with at least one starter compound in the presence of a catalyst of the formula I: M1p[M2qOn(OH)2(3-n)]x,??(I) and to the polyetherols prepared by such a process and to their use for the synthesis of polyurethanes, as fuel additive or as surfactant.

Abstract: A coating composition including a copolymerization product of a mixture of monomers including one or more carbamate-functional monomers and (meth)acrylic monomers, some having carboxylic acid-functionality. The monomer mixture is essentially free of hydroxyl monomers. The coating composition may be a solvent-borne clearcoat coating composition, preferably an automotive clearcoat coating composition, that may be applied over a water-borne basecoat coating composition.

Abstract: A process for preparing a high-concentration formaldehyde solution by removing water from a lower-concentration formaldehyde solution having a formaldehyde content of from 5 to 50% by weight, in which the lower-concentration formaldehyde solution is fed to a preheater and heated in the preheater, depressurized via a pressure maintenance device and concentrated in a helical tube evaporator to give a vapor stream and the high-concentration formaldehyde solution as bottom stream, wherein the heated lower-concentration formaldehyde hyde solution is depressurized in the pressure maintenance device to give a two-phase mixture which is fed into the helical tube evaporator, is proposed.

Abstract: An acrylic composition, or star acrylic polymer, includes the reaction product of an initiator, a first compound, and a highly-branched, polyfunctional core molecule. The initiator has a radical-forming portion and a functional group. The first compound, which includes a vinyl functional group, is reactive with the initiator to form a functionalized intermediate. The core molecule is reactive with the functionalized intermediate to form the acrylic composition. A method of forming the acrylic composition via free-radical polymerization includes the steps of reacting the initiator and the first compound to form the functionalized intermediate, and reacting the core molecule with the functionalized intermediate to form the acrylic composition.

Abstract: The present invention relates to a method for determining the identity or non-identity of at least one chemical compound V? homogeneous y distributed in a medium, by a) exposing the medium containing at least one homogeneously distributed chemical compound V? to analysis radiation with a variable wavelength ?, and b) determining the spectral measurement function I?(?) with the aid of the absorbed, reflected, emitted and/or scattered radiation, wherein a correlation function K(??,c?,c) is determined according to Equation I K ? ( ? ? ? ? ? , c ? , c ) = 1 / N · ? - ? + ? ? I ? ? ( ? , c ? ) · I ? ( ? + ? ? ? ? ? , c ) ? ? ? ? ? ( I ) in which K(??,c?,c) denotes the correlation depending on the relative shift ?? of the functions I?(?,c?) and I(?,c) and the concentrations c? and c of the at least one chemical compound V? and V, c? denotes the concentration of the at least one chemical compound V? homogeneously distributed in the medium, with a

Abstract: A process for producing an absorbent composite by contacting a solid supporting material with an emulsion comprising at least one polymeric material and at least one crosslinker and curing the mixture on the supporting material, the absorbent composites and also their use in sealing materials for road, tunnel and water engineering and also for excavations, high water protection and roof-sealing systems.

Abstract: A coating material comprising (A) at least 50% by weight, based on the amount of nonvolatile substances in the coating material, of at least one compound (A1) and/or (A1?) containing at least two reactive groups of the formula I —X—SiR?x(OR?)3-x??(I) where R?=hydrogen, alkyl or cycloalkyl, the carbon chain being uninterrupted or interrupted by nonadjacent oxygen, sulfur or NRa groups, where Ra alkyl, cycloalkyl, aryl or aralkyl, X=linear and/or branched alkylene or cycloalkylene radical having 2 to 20 carbon atoms, R?=alkyl, cycloalkyl, aryl or aralkyl, the carbon chain being uninterrupted or interrupted by nonadjacent oxygen, sulfur or NRa groups, and x=0 to 2, (B) a catalyst for the crosslinking of the —Si(OR?)3-x units, and (C) an organic solvent or a mixture of organic solvents, the reactive groups (I) being crosslinked, in the course of curing of the coating material, such that nanoindentation testing on the cured coat results in the following properties: a. elastic volume recovery >86.5%, b.

Abstract: A container for storing and transporting liquid materials has a container wall and a container opening surrounded by the container wall. A closure element that closes the container opening is provided. An intermediate lid made from plastic material is arranged between the closure element and the container wall and is removable. The intermediate lid has at least over portions thereof a convexly curved cross-section. The intermediate lid has a circumferential collar that is formed as a bead and that is placed onto a fastening projection formed on the container wall.

Abstract: Halogen-free, flame-retardant polymer foams, in particular molded polystyrene foams, composed of expandable polystyrene (EPS) or extruded polystyrene foam sheets (XPS), which comprise, as flame retardant, a phosphorus compound of the general formula (I) where R1, R2, and R3, independently of one another, are H, substituted or unsubstituted C1-C15-alkyl, substituted or unsubstituted C1-C15-alkenyl, substituted or unsubstituted C3-C8-cycloalkyl, substituted or unsubstituted C6-C18-aryl, or substituted or unsubstituted C7-C30-alkylaryl, or the hydrolysis product or metal salt of a phosphorus compound of the general formula (I), and processes for their production.

Abstract: An electrolysis device producing alkali metals from a liquid alkali metal heavy metal alloy, including at least two connected tubes forming an electrolysis unit. Two solid electrolyte tubes are arranged concentrically in each tube and oriented with openings towards one end of each tube such that a first annular gap for guiding a liquid alkali metal forming an anode is located between the inside of the tube and the outside of the solid electrolyte tubes. An alloy inlet and outlet for the liquid alkali metal in each of the tubes leads into the first annular gap of a tube. An inner chamber sealed off from the alloy inlet, first annular gap, and alloy outlet in each solid electrolyte tube receives liquid alkali metal that can be used as a cathode connected to the alkali metal outlet. Two respective closure devices are arranged at the two ends of each tube.

Abstract: The present invention relates to the use of perylene diimide derivatives as air-stable n-type organic semiconductors.

Abstract: The present invention provides a process for distillatively purifying tetrahydrofuran in the presence of a polar solvent.

Abstract: The invention relates to 5,6-cycloalkyl-7-aminotriazolopyrimidines of formula (I), where X=alkylene or alkenylene, whereby the carbon chain can be interrupted by one or two heteroatoms selected from S, O or NR1, R1?H, alkyl or C(?O)alkyl, L=halogen, cyano, nitro, alkyl, haloalkyl, alkoxy, haloalkoxy, alkenyl, alkinyl or NR2R3; R2,R3=each one of the groups given for R1 and m=a whole number from 0 to 5, whereby the aliphatic groups can be substituted by one to three of the following groups: halogen, cyano, nitro, hydroxy, alkoxy, alkylthio, or NRaRb, where Ra, Rb?H or alkyl in which the carbon chains can be halogenated. The invention further relates to methods for production of said compounds, agents comprising the same and use thereof for the prevention of fungal pests harmful to plants.

Abstract: A process for preparing halogenated rylenecarboximides of the general formula I in which the variables are each defined as follows: A, B together are an imide radical or, in the case that n is 1, A and B are also each Hal or one radical is Hal and the other radical is halogen; R, R? are each independently hydrogen; optionally substituted alkyl, cycloalkyl, aryl or hetaryl; Hal is chlorine, bromine or iodine; n is 1, 2 or 3; x is from 2 to 8, by reacting a rylenecarboximide of the general formula II in which the A? and B? radicals together are an imide radical or, in the case that n is 1, are also each hydrogen with elemental halogen in the presence of an inert organic solvent S1, which comprises continuously withdrawing the hydrogen halide formed in the course of the reaction from the solvent S1.

Abstract: An aqueous coating material comprising at least one epoxy resin as binder and at least one polyamine as curing agent, wherein said epoxy resin or at least one of the epoxy resins (i) is solid per se at room temperature and/or is present in a powder coating material, and (ii) the solid epoxy resin and/or the epoxy resin powder coating material is or are present in fine dispersion in an aqueous dispersion comprising the polyamine or polyamines; and the use of the aqueous coating material to produce antistonechip primers.

Abstract: A catalyst is described which has a catalytically active composition which contains a phase A and a phase B in the form of three-dimensional delimited regions, wherein phase A is a silver-vanadium oxide bronze and phase B a mixed oxide phase based on titanium dioxide and vanadium pentoxide. The catalyst serves to prepare aldehydes, carboxylic acids and/or carboxylic anhydrides from aromatic or heteroaromatic hydrocarbons by gas phase oxidation.