Abstract: Syntactic polyurethanes are prepared by mixing hollow microspheres with polyurethanes by a process in which, in a first step, the polyurethane system components are reacted and, in a second step, the feeding of the hollow microspheres is effected in a mixing apparatus, the mixing apparatus being free of dead space and comprising i) a mixing pot, ii) a feed for polyurethane, iii) a feed for hollow microspheres, iv) a stirring element and v) an outlet orifice.

Abstract: Coating materials for the coil coating process, comprising (A) as binder at least one aliphatic, araliphatic and/or aromatic polyester having an acid number of <10 mg KOH/g, a hydroxyl number of from 30 to 200 mg KOH/g, and a number-average molecular weight Mn of between 1000 and 5000 daltons, (B) as crosslinking agent at least two amino-containing resins of different reactivity, processes for preparing them, and their use as coil coating materials.

Abstract: The invention relates to a method for chemically decontaminating soil by applying a fungicidally, insecticidally or nematicidally active quantity of a mixture M containing a constituent a) consisting of a1) between 20 and 96 wt. % of sulphur and a2) between 4 and 80 wt. % of a complexing agent, and optionally at least one plant protecting agent b.) and/or additive c).

Abstract: A coating material comprising (A) at least one kind of hydrophobic nanoparticles based on silica and (B) at least one kind of hydrophilic nanoparticles based on silica having a BET internal surface area of >300 m2/g; process for preparing it, and its use.

Abstract: Aqueous (meth)acrylate copolymer dispersions preparable by (I) subjecting at least one monomer (a) containing at least one hydrophilic functional group which brings about the water-solubility or water-dispersibility of the (meth)acrylate copolymer to (co)polymerization in aqueous/organic solution using at least one oil-soluble initiator which provides free radicals, (II) where appropriate, fully or partly neutralizing the resulting (co)polymer I, (III) dispersing the resultant solution of the (co)polymer I, (partly) neutralized where appropriate, in water, and (IV) copolymerizing and/or graft-copolymerizing at least one monomer (b) in the presence of the resultant dispersion III using oil-soluble initiators which provide free radicals, the monomer or monomers (b) containing at least one hydrophilic functional group which brings about no substantial water-solubility or water-dispersibility of the (meth)acrylate copolymer, or at least one hydrophobic group, and being selected in nature and amount such that th

Abstract: A process is described for preparing hydrogen cyanide by autothermal noncatalytic oxidation of one or more nitrogenous hydrocarbons or a nitrogenous hydrocarbon mixture in which the nitrogenous hydrocarbons, an oxygen-containing gas, with or without ammonia, with or without water, with or without a gas containing nitrogen oxides and with or without other essentially inert feed gas constituents are introduced into a flame reaction zone, react in the flame reaction zone and a post-reaction zone at a temperature of from 1000 to 1800° C. for a reaction time of 0.03 to 0.3 s to form a cleavage gas which comprises at least the constituents hydrogen cyanide, carbon oxides, hydrogen, water, ammonia, nitrogen, light hydrocarbons with or without other cleavage gas constituents, the atomic C/N ratio in the reaction zones being from 1 to 7 and the atomic air ratio ?ato being <0.6, the cleavage gas being cooled and separated.

Abstract: The invention relates to a composition for producing a heat-insulating coating comprising at least one radiation-absorbing compound and at least one IR-reflector component, to a heat-insulating coating comprising this oriented, cured composition, and to a process for producing said coating.

Abstract: A process for preparing a vanadium, phosphorus, and oxygen catalyst precursor for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of a hydrocarbon having at least four carbon atoms, by reacting vanadium pentoxide (I) in the presence of a primary or secondary, noncyclic or cyclic, unbranched or branched, saturated alcohol having from 3 to 6 carbon atoms (II) with a pentavalent or trivalent phosphorus compound (III) in a temperature range from 80 to 160° C. with stirring and subsequently filtering the resultant suspension, in which (a) the way in which the phosphorus compound (III) and the vanadium pentoxide (I) are combined in the presence of the alcohol (II), (b) the action of a stirring power of from 0.01 to 0.6 W/kg suspension, and/or (c) the filtration at a temperature from 65° C. to 160° C.

Abstract: A process for preparing a vanadium, phosphorus, and oxygen catalyst precursor for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of a hydrocarbon having at least four carbon atoms, which comprises (a) reacting vanadium pentoxide with from 102 to 110% strength phosphoric acid in the presence of a primary or secondary, noncyclic or cyclic, unbranched or branched, saturated alcohol having from 3 to 6 carbon atoms in a temperature range from 80 to 160° C.; (b) isolating the precipitate formed; (c) setting an organic carbon content of ?1.1% by weight in the isolated precipitate by heat treatment in a temperature range from 250 to 350° C., the heat-treated product, following the addition of 3.0% by weight of graphite, giving a powder X-ray diffraction diagram which in the 2? region features a ratio of the height of the peak of any pyrophosphate phase present at 28.5° to the height of the peak due to the graphite at 26.6° of ?0.

Abstract: A substrate is coated by a process in which a finely divided suspension of crystalline oxide particles is applied to a substrate by coating, the suspending medium is evaporated and the coating on the substrate is sintered.

Abstract: The invention relates to graft polyols with a bimodal particle size distribution and a total solid content of between 5 and 65 wt. %. Said polyols contain small particles with a particle diameter of between 0.05 and 0.7 ?m and large particles with a particle diameter of between 0.4 and 5.0 ?m, whereby the peaks of the large and small particles measured during a representation according to the light-scattering analysis method do not overlap. The total solid content with the defined particle sizes consists of a volumetric fraction of between 5 and 45% small particles and a volumetric fraction of between 95 and 55% large particles, said volumetric fractions totalling 100%. The invention also relates to a method for producing graft polyols of this type and to the use thereof for producing polyurethanes.

Abstract: The invention relates to 1,6,9,14-tetrasubstituted terrylene tetracarboxylic acid diimides of general formula (I), in which the variables are defined as follows: X, Y independently of one another represent bromium; cyano; aryloxy, arylthio, hetaryloxy or hetarylthio, which can respectively be mono- or polysubstituted by C1-C12 alkyl, C1-C12 alkoxy, —COOR1, —SO3R1, halogen, hydroxy, carboxy, cyano, —CONHR2 and/or —NHCOR2; a group of formula -L-R3; a group of formula —NR22; R, R? independently of one another represent hydrogen; C1-C30 alkyl, whose carbon chain can be interrupted by one or more groupings —O—, —S—, —NR1—, —CO— and/or —SO2— and which can be mono- or polysubstituted by cyano, C1-C6 alkoxy, aryl, which may be substituted by C1-C18 alkyl or C1-C6 alkoxy and/or a 5- to 7-membered heterocyclic group that is bonded by means of a nitrogen atom and that can contain additional heteroatoms and be aromatic; C5-C8 cycloalkyl, whose carbon skeleton can be interrupted by one or more groupings —O—, —S— and/or —N

Abstract: The present invention describes a method of inhibiting the growth of an undesired plant by contacting the plant with a herbicidally effective amount of a microcapsule composition. The microcapsule composition includes a dinitroaniline compound and the microcapsule has a median diameter from about 3 micrometers to about 10 micrometers. The present invention further describes a composition for inhibiting the growth of an undesired plant containing a herbicidally effective amount of a microcapsule composition. The microcapsule composition includes a dinitroaniline compound and the microcapsule has a wall with a thickness from about 1 wt. % to about 10 wt. %.

Abstract: The present invention relates to a continuous process for preparing isocyanates by reacting primary amines with phosgene, wherein the reaction is carried out in a cascade of at least two tube reactors and the gas phase formed in the reaction is separated off in a phase separator after each reactor and only the liquid phase is passed to the next reactor or to product purification and the reaction volume of the first tube reactor is only a fraction of the total reaction volume.

Abstract: Process for producing semifinished products from sheet-like fiber structures and from binders, by first (i) treating a sheet-like fiber structure with a binder and, if appropriate, drying it to a moisture content of from 4 to 30% by weight, (ii) coating the surface of the resultant treated fiber structure on one or both sides with a curable binder, and (iii) drying the coated fiber structure to a residual moisture content of from 4 to 30% by weight, to give a semifinished product, and the resultant semifinished product, process for producing moldings via heating of the semifinished product to a temperature above the temperature at which the binders crosslink, and use of the moldings as internal parts for motor vehicles, as packing material, as single-use tableware, as office accessories, as trays, as decorative parts in the furniture industry, or else as inserts for closets, or drawers, or rear walls of furniture.

Abstract: A process for preparing impact-resistant molding compositions by anionic polymerization of vinylaromatic monomers in the presence of a rubber, in a continuous-flow reactor cascade composed of at least two reactors, where the vinylaromatic monomers are fed in substreams to the reactors of the reactor cascade, and an anionic initiator and a rubber are fed at least to the first reactor, and where the reactor cascade is composed of back-mixing reactors.

Abstract: Described are microcapsule formulations comprising microcapsules having a core of a hydrophobic material, which encloses at least one fragrance or perfume, and a capsule shell which is obtainable by either i) free-radical polymerization of ethylenically unsaturated monomers comprising: from 30 to 100% by weight of one or more C1-C24 alkyl esters of acrylic and/or methacrylic acid, from 0 to 70% by weight of a bi- or polyfunctional monomer, from 0 to 40% by weight of other monomers; or ii) acid-induced condensation of melamine-formaldehyde precondensates and/or their C1-C4 alkyl ethers. Also described are laundry detergent or cleaning product compositions which comprise the microcapsules.

Abstract: The invention relates to the use of a water-soluble polyvinyl alcohol (co)polymer or a mixture of polyvinyl alcohol (co)polymers as additives in aqueous electrodeposition baths, to electrodeposition baths comprising a polyvinyl alcohol (co)polymer, and to a method of coating an electrically conductive substrate.

Abstract: The invention relates to a process for the work-up of polyether alcohols which have been prepared by base-catalyzed addition of ethylene oxide and propylene oxide onto H-functional starter substances and have a proportion of ethylene oxide in the polyether chain of greater than 20% by weight, preferably greater than 25% by weight, particularly preferably greater than 35% by weight and in particular greater than 50% by weight, based on the weight of the alkylene oxides used, which comprises the steps a) neutralization of the polyether alcohol with an acid subsequent to the addition reaction of the alkylene oxides, b) addition of at least one absorbent, c) removal of water and volatile compounds from the polyether alcohol, d) removal of the salts formed and the absorbents from the polyether alcohol, wherein phosphoric acid is used as acid in step a) in an amount of from 56 to 98% of the stoichiometric amount, the absorbent is used in an amount of from 0.

Abstract: A blend comprising a) from 5 to 40% by weight of a linear block copolymer of vinylaromatic monomers and dienes of the structure (I) S1—(B/S)1—S2 having a flexible phase fraction (B/S)1 of not more than 55% by weight, based on the block copolymer (I) and b) from 95 to 60% by weight of a linear block copolymer of vinylaromatic monomers and dienes of the structure (II) S3—(B/S)2—S4 having a flexible phase fraction (B/S)2 of at least 65% by weight, based on the block copolymer (II), where S1 is a block of vinylaromatic monomers having a number average molar mass Mn in the range from 40 000 to 100 000 g/mol, S2, S3 and S4 are in each case blocks of vinylaromatic monomers having a number average molar mass Mn in the range from 5000 to 20 000 g/mol, (B/S)1 and (B/S)2 are in each case copolymer blocks of dienes and vinylaromatic monomers having a number average molar mass Mn in the range from 15 000 to 40 000 g/mol.