Abstract: A process for preparing fused triazoles of formula I where: X—X is C—O, C—S, C—SO, C—SO2, or C—NR1; V is C═W2, R1R2C—C(═W2)— or C(═V2)—C(═W2); W1, W2 are oxygen or sulfur; which comprises reacting substituted N-aminoureas are reacted with formaldehyde or paraformaldehyde to give the corresponding methyleneimino ureas; cyclizing these in the presence of catalytic amounts of acid or metal oxide to give tetrahydro-4H-1,3,4-oxa(or thia)diazines, and cyclizing the fused triazoles using phosgene or a phosgene substitute.

Abstract: Insoluble, only slightly swellable popcorn polymers containing a) from 50 to 99% by weight of styrene and/or at least one monounsaturated styrene derivative, b) from 0.1 to 40% by weight of at least one N-vinyllactam or N-vinylamine and c) from 0.1 to 10% by weight of at least one difunctional crosslinking component, the stated percentages by weight of the individual components a) to c) summing to 100%.

Abstract: A process is described for preparing isoxazol-3-ylacylbenzenes. Also, novel intermediates for preparing isoxazol-3-ylacylbenzenes and novel processes for preparing the intermediates are described.

Abstract: The invention relates to the use of compounds of the formula I in which X is the divalent radical of oxygen, a carbonyl radical, optionally aliphatically substituted imino or the radical ═CR9R10, Y is a carbonyl group or the radical ═CR9R10, R1 and R2 are identical or different electron-withdrawing radicals, chosen from the group consisting of cyano, alkyl- or arylcarbonyl, alkyloxy- or aryloxycarbonyl, optionally substituted aminocarbonyl, alkyl- or arylsulfinyl, alkyl- or arylsulfonyl and optionally substituted aminosulfonyl, R3 is a hydrogen atom, a cyano, hydroxyl, carboxyl or aminocarbonyl group or a C5-C20-aryl radical or C1-C20-alkylradical optionally bonded via an oxygen bridge, an aminocarbonyl bridge or oxycarbonyl bridge, R4 is a hydrogen atom, a hydroxyl group, an amino group, or a C5-C20-aryl radical or C1-C20-alkyl radical optionally bonded via an oxygen bridge, and R5 to R10 independently of one another are hydrogen or C1-C20-alkyl radicals and where in additio

Abstract: The continuous process for producing polyamides by reacting at least one aminonitrile with water comprises the following steps: (10) reacting at least one aminonitrile with water at a temperature of from 200 to 290° C. at a pressure of from 40 to 70 bar in a flow tube containing a Brönsted acid catalyst selected from a beta-zeolite, sheet-silicate or metal oxide catalyst in the form of a fixed bed, (11) diabatically or adiabatically expanding the reaction mixture from step (1) into a first separation zone to a pressure of from 20 to 40 bar, the pressure being at least 10 bar lower than the pressure in step (1), and to a temperature within the range from 220 to 290° C. by flash evaporation and removal of ammonia, water and any aminonitrile monomer and oligomer, (12) further reacting the reaction mixture from step (2) in the presence of water at a temperature of from 200 to 290° C.

Abstract: Amines are prepared by reacting aldehydes or ketones at elevated temperature under elevated pressure with nitrogen compounds selected from the group of ammonia, primary and secondary amines, and with hydrogen in the presence of a catalyst, wherein the catalytically active mass of the catalyst contains, after its preparation and before the treatment with hydrogen, 22 to 45% by weight of oxygen-containing compounds of zirconium, calculated as ZrO2, 1 to 30% by weight of oxygen-containing compounds of copper, calculated as CuO, 5 to 50% by weight of oxygen-containing compounds of nickel, calculated as NiO, where the molar ratio of nickel to copper is greater than 1, 5 to 50% by weight of oxygen-containing compounds of cobalt, calculated as CoO, 0 to 5% by weight of oxygen-containing compounds of molybdenum, calculated as MoO3, and 0 to 10% by weight of oxygen-containing compounds of aluminum and/or manganese, calculated as Al2O3 or MnO2.

Abstract: A molding (catalyst structure) for chemical apparatuses which is formed from at least two closed frames and one or more cross-pieces connecting these frames, where the frames are arranged at a distance from one another in a single plane or in a plurality of parallel planes about an (imaginary) molding (structure) axis which is perpendicular to the plane(s) and passes through the center points of the frames. The molding (catalyst structure) is preferably formed from at least four closed frames and one or more cross-pieces connecting these frames, where the frames are arranged one inside the other at a distance from one another in at least two parallel planes about an (imaginary) molding (structure) axis which is perpendicular to the planes and passes through the center points of the frames, and each plane has at least two frames.

Abstract: The present invention relates to free-radically polymerizable, siloxane-containing urethane (meth)acrylates which comprise, in incorporated form, a) at least one compound which contains at least one active hydrogen atom and at least one free-radically polymerizable &agr;,&bgr;-ethylenically unsaturated double bond per molecule, b) at least one diisocyanate, c) at least one compound which contains two active hydrogen atoms per molecules, d) at least one compound which contains at least one active hydrogen atom and at least one siloxane group per molecule, to water-soluble or water-dispersible polymers which comprise these urethane (meth)acrylates in copolymerized form, to the use of these polymers, and to cosmetic compositions which comprise these polymers.

Abstract: Modified forms of human interleukin-1&bgr; converting enzyme (ICE) that display proteolytic activity and, furthermore, have increased stability compared to unmodified human ICE are disclosed. Nucleic acid molecules encoding a modified p10 subunit of ICE, and recombinant vectors and host cells incorporating such nucleic acid molecules, are also disclosed. A modified ICE protein of the invention can be used to cleave proteolytically ICE substrates and to identify modulators of ICE activity in screening assays. Moreover, due to its enhanced stability, the modified ICE of the invention is particularly suitable for use in the preparation of ICE crystals for X-ray crystallography.

Abstract: The spinel monolith catalyst is obtainable by a) preparing or coating a molding, especially a monolith, with an at least surfacial active composition comprising a spinel of the general formula (I) AxB(1−x)E2O4  (I)  where A is Cu, of which up to half may be replaced by Co, Fe, Ni, Mn or Cr, B is at least one element selected from the group consisting of Zn, Mg, Ca, Zr, Ce, Sn, Ti, V, Mo and W, E is Al, of which up to half may be replaced by Fe2O3, Cr2O3, Ga2O3, La2O3 or mixtures thereof, x is from 0 to 1, preferably 0 to 0.9, b) impregnating the monolith with a solution of at least one compound of elements of transition group 5 of the periodic table or adding these elements in step a) in the form of their oxides or salts, c) drying and optionally calcining.

Abstract: A process for the catalytic gas-phase oxidation of propene to acrylic acid, in which the reaction gas starting mixture is oxidized, with an increased propene loading, in a first reaction stage, over a first fixed-bed catalyst and then the acrolein-containing product gas mixture of the first reaction stage is oxidized, in a second reaction stage, with an increased acrolein loading, over a second fixed-bed catalyst, the catalyst moldings in both reaction stages having an annular geometry.

Abstract: Adhesives comprising as binder an aqueous dispersion of a polymer formed from free-radically polymerizable compounds (monomers), wherein from 0.1 to 20% by weight of the monomers, based on the overall amount of the monomers, are ethylenically unsaturated acids at least 20 mol % of whose acid groups are present as a salt of at least divalent metals.

Abstract: In a process for the suspension hydrogenation of an anthraquinone compound or a mixture of two or more thereof in a reactor in which there are present the working solution in which at least one catalyst is suspended and, in addition, a hydrogen-containing gas phase, the working solution and the gas phase are, in the reactor, passed at least partly through a fitting having openings or channels whose hydraulic diameter is from 0.5 to 20 mm, preferably from 1 to 10 mm, particularly preferably from 1 to 3 mm.

Abstract: The invention relates to a novel fungicidal composition comprising a fungicidally acceptable carrier and/or surface active agent together with, and synergistically effective amounts of (a) at least one benzophenone of formula I wherein R1, R2, R3, R4, R5, R6, R7, m and n have the meaning given; at least one fungicidal active ingredient selected from the following groups (A), (B), (C), (D) and (E): (A) an ergosterol biosynthesis inhibitor; (B) a strobilurine derivative, (C) a melanin biosynthesis inhibitor; (D) a compound selected from the group consisting of acibenzolar, benomyl, captan, carboxin, chlorothalonil, copper, cyprodinil, dinocap, dithianon, dimethomorph, dodine, ethirimol, famoxadone, fenpiclonil, fluazinam, mancozeb, metalaxyl, pyrifenox, sulfur, vinclozolin and (E) an azolopyrimidine of formula II in which R8, R9, R10, R11, A, L and p have the meaning given; and to a method of controlling the growth of phytopathogenic fungi at a locus which comprises a

Abstract: This invention relates to an improved process of producing hydrogen and carbon dioxide by the catalytical process of methanol reformation. The improvement resides in the use of catalysts made up substantially of metal oxides selected from the group consisting of Al2O3, TiO2, ZrO2 and ZnO, and which catalyst is in the form of a substantially cylindrical tablet having a maximum diameter in the range from 0.8 to 2.0 mm and a maximum height in the range of from 0.5 to 2.0 mm.

Abstract: The present invention relates to laser-markable plastics, in particular thermoplastic polyurethanes, which are distinguished by the fact that they contain pigments having a coating of doped tin dioxide.

Abstract: Open-cell moldable foams are based on a thermoplastic matrix which comprises A. from 99 to 50% by weight of a styrene polymer and B. from 1 to 50% by weight of a polymer of low compatibility with the styrene polymer.

Abstract: A composite is composed of at least one first molding and one second molding, where the first molding and the second molding have been immovably bonded to one another via at least one partial region of one surface &agr; of the first molding and of one surface &bgr; of the second molding, via a welded region, and where, based on the first molding, at least 50% by weight of the first molding is composed of a molding composition comprising: A) from 5 to 99% by weight of a polyester, B) from 1 to 95% by weight of a fibrous filler pretreated with an aminosilane compound and with an epoxy polymer, C) from 0 to 30% by weight of an elastomeric polymer, and D) from 0 to 40% by weight of other additives, where the total of the percentages by weight of components A) to D) is 100%. Laminates made from these composites, and products produced therefrom and recycled materials obtained therefrom, are described, as is the use of all of these, in particular in automotive construction.

Abstract: The invention relates to cycloalkyl derivatives, a process for their preparation and their use.

Abstract: Block copolymers comprise at least two hard blocks S1 and S2 made from vinyl aromatic monomers and, between these, at least ore random soft block B/S made from vinyl aromatic monomers and from dienes, where the proportion of the hard blocks is above 40% by weight, based on the total block copolymer, wherein the 1,2-vinyl content in the soft block B/S is less than 20%.