Abstract: A process for obtaining oligomers of polytetrahydrofuran or of tetrahydrofuran copolymers from a methanolic crude product which contains polytetrahydrofuran or tetrahydrofuran copolymers and is obtained in the transesterification of the mono- and/or diesters of polytetrahydrofuran or tetrahydrofuran copolymers with methanol, which includes a) removing the majority of the methanol from the crude product in a first distillation stage, b) separating the resulting bottom product by distillation into a top fraction containing the oligomers of polytetrahydrofuran or of tetrahydrofuran copolymers, and polytetrahydrofuran or tetrahydrofuran copolymer, and c) condensing the oligomers of polytetrahydrofuran or of tetrahydrofuran copolymers out of the top fraction from stage b).

Abstract: An inbred maize line, designated HLA18ND, is disclosed. The invention relates to the seeds of inbred maize line HLA18ND, to the plants of inbred maize line HLA18ND and to methods for producing a maize plant, either inbred or hybrid, by crossing the inbred line HLA18ND with itself or another maize line. The invention further relates to methods for producing a maize plant containing in its genetic material one or more transgenes and to the transgenic plants produced by that method and to methods for producing other inbred maize lines derived from the inbred HLA18ND.

Abstract: An electrolyte solution proposed for double layer capacitors contains at least one conducting salt comprising a cation having a maximum diameter<9.20 Á which additionally comprises substituents on the central atom which are not all the same and further contains at least one solvent comprising a functional group selected from lactones and nitrites. Such electrolyte solutions are superior to conventional electrolyte solutions at low temperatures when acetonitrile is the solvent, so that double layer capacitors provided with electrolyte solutions according to the invention have improved electrical properties at low temperatures.

Abstract: The invention relates to a process for preparing an ethylene amine mixture, which comprises the following steps: a) crude AAN which is largely free of formaldehyde cyanohydrin (largely FACH-free) is heated at a temperature of from 50 to 150° C. to give an amino nitrile mixture comprising aminoacetonitrile (AAN) and from 5 to 70% by weight of iminodiacetonitrile (DAN), b) hydrogenation of the amino nitrile mixture obtained in step a) in the presence of a catalyst. Ethylenediamine (EDA) and/or diethylenetriamine (DETA) and also, if appropriate, further ethylene amines can be isolated from the ethylene amine mixtures obtained.

Abstract: A method for cleaning structured surfaces of semiconductor components to remove photoresist and etching residues after the etching of the surface, comprising: a) removal of the photoresist, b) treatment of the surface with an acidic aqueous solution comprising one or more acids and one or more oxidizing agents, c) treatment of the surface with an alkaline aqueous solution and d) washing of the surface with demineralized water, the steps a), b) and c) being effected before step d).

Abstract: Process for preparing an alkenylphosphonic acid derivative by reacting a phosphonic acid derivative with an alkyne in the presence of a complex catalyst system and a base whose conjugate acid has a pKa in dimethyl sulfoxide (25° C., 1 bar) of at least 6.

Abstract: The present invention relates to a liquid formulation containing at least one carotenoid, at least one hydrophilic protective colloid and at least one water-miscible alcohol. The formulation according to the invention can be added directly to aqueous or non-aqueous preparations. The invention compositions can be used in animal feed, human food or a dietary supplement and in pharmaceutical and cosmetic preparations.

Abstract: The invention relates to two-component coating systems comprising as component (a) one or more polyisocyanates, as component (b) one or more oligomeric and/or polymeric compounds that are reactive with component (a), and as component (c) one or more phosphonates selected from the group of phosphonic diesters and diphosphonic diesters, where (i) component (b) comprises all oligomeric and/or polymeric compounds that are present in the two-component coating system and are reactive with component (a) and (ii) component (b) contains not more than 15% by weight, based on the total weight of component (b), of oligomeric and/or polymeric compounds which carry isocyanate-reactive amino groups. Additionally provided by the invention are a process for preparing the two-component coating systems, and the use of these coating systems as a clearcoat, more particularly for multicoat automobile finishing.

Abstract: A process for removing trioxane from a use stream I of formaldehyde, trioxane and water, by a) providing a use stream I which comprises formaldehyde as the main component and trioxane and water as the secondary components, b) feeding the use stream I, a recycle stream V and a recycle stream VII which comprises formaldehyde as the main component and water and trioxane as the secondary components into a first distillation stage and distilling at a pressure of from 0.1 to 2.5 bar to obtain a stream II which comprises formaldehyde as the main component and water as the secondary component, and a stream III which comprises trioxane as the main component and water and formaldehyde as the secondary components, and a stream X which comprises water, trioxane and formaldehyde, c) distilling the stream III, optionally after removing low boilers from the stream III in a low boiler removal stage, in a second distillation stage at a pressure of from 0.2 to 17.

Abstract: The invention relates to a process for removing carbon monoxide from a hydrogenous gas stream by reacting the carbon monoxide with hydrogen to give methane and water in the presence of a heterogeneous catalyst. In this process, the catalyst is present in the form of a thin-layer catalyst on a support material. The invention further relates to an apparatus for carrying out the process.

Abstract: The present invention relates to a process for preparing at least one sheet silicate comprising Ga and/or Zn, and based thereon, a framework silicate, preferably of the RRO structure type, to the sheet silicate and framework silicate themselves and to the uses of the silicates, especially of the framework silicate, preferably as catalysts.

Abstract: The present invention relates to methods of producing surface-modified nanoparticulate particles at least of one metal oxide, metal hydroxide and/or metal oxide hydroxide, and aqueous suspensions of these particles. Furthermore, the invention relates to the surface-modified nanoparticulate particles, obtainable by these methods, at least of one metal oxide, metal hydroxide and/or metal oxide hydroxide and aqueous suspensions of these particles, and to their use for cosmetic sunscreen preparations, as stabilizer in plastics and as antimicrobial active ingredient.

Abstract: The invention relates to a process for preparing triethylenetetramine (TETA), which, comprises the following steps: a) reaction of ethylenediamine (EDA) with formaldehyde and hydrocyanic acid (HCN) in a molar ratio of EDA to formaldehyde to HCN of from 1:1.5:1.5 to 1:2:2 to give ethylenediaminediacetonitrile (EDDN), b) hydrogenation of the EDDN obtained in step a) in the presence of a catalyst and a solvent.

Abstract: A process for producing odor-inhibiting water-absorbing polymer particles based on ethylenically unsaturated monomers bearing acid groups, wherein the acid groups have been neutralized to an extent of from 40 to 70 mol % and the polymer particles are coated with a condensed tannin and/or a hydrolyzable tannin.

Abstract: The present invention relates to novel active substance compositions for plant protection in the form of finely divided active-substance-containing particles which compositions comprise a) at least one plant protectant; b) at least one polymer P which is not soluble in water and which is degradable by enzymatic hydrolysis, in an amount of at least 20% by weight based on the total amount of the components of the active-substance-comprising particles, and c) at least one hydrolase (EC 3), where at least 90% by weight of the active substance-containing particles of the active substance composition do not exceed a diameter of 500 ?m (D90-value) and where components a), b) and c) account for at least 30% by weight of the active substance particles. The invention also relates to a process for their preparation, and to the use of the active substance compositions for the treatment of plants, soils and of seed.

Abstract: A process for producing water-absorbing polymeric particles by a suspension polymerization with recycling of the hydrophobic solvent, the hydrophobic solvent comprising branched saturated aliphatic hydrocarbons.

Abstract: The present invention relates to compositions comprising at least one polymer a) having cationic and/or cationogenic groups and a molecular weight Mw in the range from 10 000 to 5 million and at least one polymer b) which has been prepared in the presence of polymer a).

Abstract: Aqueous dispersions comprising (A) at least one polyurethane, (B) at least one compound of the general formula I a or I b in which R1, R2 and R3 may be identical or different and are selected from A1-NCO and A1-NH—CO—X, in which A1 is a spacer having 2 to 20 carbon atoms and X is selected from O(AO)xR4, AO is C2-C4-alkylene oxide, x is an integer in the range from 1 to 50 and R4 is selected from hydrogen and C1-C30-alkyl, (C) and at least one silicone compound having reactive groups.

Abstract: Disclosed are catalytic compositions having from about 35% to about 75% of Cu by weight, from about 15% to about 35% of Al by weight, and about 5% to about 20% of Mn by weight. The catalytic compositions are bulk homogeneous compositions formed from extruding and calcinating a powder formed from a precipitation reaction of Cu(NO3)2, Mn(NO3)2, Na2Al2O3. The catalytic compositions have one or more crystalline phases of one or more of CuO and CuxMn(3-x)O4, where x is from about 1 to about 1.5, or both. The catalytic compositions are useful for the conversion of 1,4-butane-di-ol to ?-butyrolactone by a dehydrogenation reaction.

Abstract: The present invention relates to the use of insecticides which are selected among GABA antagonists and nicotin receptor agonists/antagonists, if appropriate in combination with at least one gibberellin, as safener for fungicides which have a phytotoxic effect. Moreover, the invention relates to a method of reducing or preventing the phytotoxic effect of fungicides on plants treated therewith or on plants whose seeds or growth substrate have been or are treated with these fungicides. The invention finally also relates to compositions which comprise at least one GABA antagonist, at least one azole fungicide or strobilurin fungicide and, if appropriate, at least one gibberellin, and to compositions which comprise at least one nicotin receptor agonist/antagonist, at least one azole fungicide or strobilurin fungicide and, if appropriate, at least one gibberellin.