Abstract: The present invention relates to a catalyst system for preparing carboxylic acids and/or carboxylic anhydrides, which system comprises a plurality of superposed catalyst layers arranged in a reaction tube, where vanadium antimonate is introduced into the active material in at least one of the catalyst layers. The present invention further relates to a process for gas-phase oxidation, in which a gaseous stream comprising at least one hydrocarbon and molecular oxygen is passed through a plurality of catalyst layers and the maximum hot spot temperature is below 425° C.

Abstract: The present invention relates to an oil-in-water emulsion comprising solvent (A), water (B), surfactant (C) and at least 2% by weight of pesticide (D) based on the emulsion, wherein the solvent comprises an aromatic hydrocarbon (a) and a ketone (b). Furthermore, the invention relates to a process for the preparation of an oil-in-water emulsion by mixing solvent (A), water (B), surfactant (C) and at least 2% by weight of pesticide (D) based on the emulsion with one another. Further subject matter are an agrochemical formulation comprising the emulsion according to the invention and further adjuvants; a method of controlling phytopathogenic fungi and/or undesired vegetation and/or undesired attack by insects or mites and/or for regulating the growth of plants; a method of controlling undesired attack by insects or mites on plants and/or of controlling phytopathogenic fungi and/or of controlling undesired vegetation; and seed treated with an agrochemical formulation according to the invention.

Abstract: The present invention relates to compositions which comprise highly branched polyesters, to the use of these highly branched polyesters in cosmetics and dermatology and to substituted highly branched polyesters.

Abstract: A process for coating a surface comprises said surface being coated with particles (A) comprising a core (a) and at least one envelope (b) other than said core (a), and optionally with at least one hydrophobicizing agent (B) and thereafter thermally treated.

Abstract: The present invention relates to 3-aminomethyl-1-cyclohexylamine and to a process for preparation thereof by a) reacting cyclohexenone with hydrogen cyanide in the presence of a basic catalyst, b) reacting the cyclohexanonenitrile obtained in stage a) with ammonia in the presence of an imine formation catalyst, and c) reacting the 3-cyanocyclohexylimine-containing reaction mixture obtained in stage b) with hydrogen and ammonia over hydrogenation catalysts. The present invention further relates to the use of 3-aminomethyl-1-cyclohexylamine as a hardener for epoxy resins, as an intermediate in the preparation of diisocyanates, as a starter in the preparation of polyetherols and/or as a monomer for polyamide preparation.

Abstract: The present invention relates to a catalyst for dehydroaromatizing C1-C4-aliphatics, said catalyst being obtainable by twice treating a zeolite from the group of MFI and MWW with NH4-containing mixtures, in each case with subsequent drying and calcination. The catalyst comprises molybdenum and, if appropriate, as further elements, Cu, Ni, Fe, Co, Mn, Cr, Nb, Ta, Zr, V, Zn and/or Ga. The present invention further provides a process for dehydroaromatizing a mixture comprising C1-C4-aliphatics by conversion in the presence of the catalyst.

Abstract: Disclosed is a method of preparing a modified halogenated polymer surface, comprising the steps of (a) activating the surface by modification with a polymerisation initiator by (a1) reacting the halogenated polymer surface with sodium azide and subsequent (a2) 1,3 dipolar cycloaddition with an alkine-functionalized initiator; or (a3) reacting the halogenated polymer surface with mercapto-functionalized initiators; and (b) reacting the activated surface obtained in steps (a1)/(a2) or (a3) with polymerizable monomeric units A and/or B. The modified halogenated polymer substrates according to the invention exhibit outstanding properties.

Abstract: A method for characterizing magnetorheological fluids using a volume flow rate measurement. The volume flow of the magnetorheological fluid through a capillary is initially measured, with a constant weight force being applied onto the magnetorheological fluid. A magnetic field is then applied to the capillary, and the volume flow of the magnetorheological fluid through the capillary is measured with the magnetic field applied, with a second constant weight force being applied onto the magnetorheological fluid. A device for carrying out the method comprises a container for storing a magnetorheological fluid, wherein the container is connected on one side to a capillary through which the magnetorheological fluid can flow, and is closed on a different side by a movable piston, which presses the magnetorheological fluid through the capillary with a constant weight force, and means for generating a magnetic field are provided in the region of the capillary.

Abstract: A process for producing water-absorbing polymer particles, wherein at least one aliphatic aldehyde or reaction product thereof with an aliphatic alcohol, an aliphatic amine, ammonia, a hypophosphite or a phosphite is added.

Abstract: The present invention relates to a polymer blend, comprising (a) at least one hydrophobic polymer, as component A, (b) at least one hydrophilic polymer, as component B, and (c) at least one structural unit that crosslinks component A and/or B and derives from at least one compound selected from the group consisting of aldehydes, dialdehydes, diketones, aldehyde ketones, derivatives of the above-mentioned compounds, and mixtures thereof, as component C, and to processes for the production thereof and to the use thereof.

Abstract: The present invention relates to a process of the invention for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises the steps: (A) Contacting of at least one magnetic particle and at least one bifunctional molecule or an adduct of the two with the mixture comprising the at least one first material and at least one second material so that an adduct is formed from the at least one magnetic particle, the bifunctional compound of the general formula (I) and the at least one first material, (B) suspension of the adduct obtained in step (A) in a suitable suspension medium, (C) separation of the adduct present in the suspension from step (B) from the suspension by application of a magnetic field, (D) if appropriate, dissociation of the adduct separated off in step (C) in order to obtain the at least one first material. a corresponding adduct and the use of such an adduct for the separation of mixtures of materials.

Abstract: The present invention relates to aqueous pigment compositions comprising—based in each case on the total weight of the composition— (A) 10% to 70% by weight of a coloring component comprising at least one color pigment and if appropriate at least one filler; (B) 0.1% to 30% by weight of a surface-active additive component based on at least one phosphoric or phosphonic ester, which may be anionic or nonionic; (C) 0.1% to 10% by weight of a nonionic, surface-active additive component based on at least one hydroxyl-containing acetylene or acetylene alkoxylate; (D) 0% to 20% by weight of an additive component comprising additives different than (B) and (C); (E) 1% to 89.8% by weight of a solvent component at least comprising water. The invention further relates to processes for preparing them and also to their use.

Abstract: The present invention relates to compositions which comprise highly-branched polycarbonates, to the use of these highly-branched polycarbonates in cosmetics and dermatology and to substituted highly-branched polycarbonates.

Abstract: The invention provides a process for preparing polyisocyanates, comprising the steps of a) reacting amines with phosgene, b) removing hydrogen chloride, excess phosgene and, if appropriate, the solvent from the reaction mixture, c) separating the liquid mixture from step b) into a liquid phase and a gaseous phase, d) working up the gaseous phase from step c) to give the polyisocyanate.

Abstract: A process for continuous production of multilayered composite articles which comprise (A) at least one backing material, (B) at least one bonding layer, and (C) at least one polyurethane layer which includes capillaries which pass through the entire thickness of the polyurethane layer, comprises using a mold to produce polyurethane layer (C) and fixing said polyurethane layer (C) on said backing material (A) with the aid of a material which converts to said bonding layer (B), the mold having a temperature in the range from 80 to 170° C. and a heat capacity in the range from 100 to 20 000 J/K.m2.

Abstract: Described is the use of benzotropolone and their derivatives, especially the compounds of formula (1); wherein R2, R3, R4, R5 and R6 independently of one another are hydrogen; OH; C1-C30alkyl, C2-C30al-kenyl, C1-C30alkoxy, C3-C12cycloalkyl or C1C30hydroxyalkyl, which may be substituted by one or more E and/or interrupted by one or more D; C6-C20aryl, which may be substituted by one or more G; C4-C20heteroaryl, which may be substituted by one or more G, C2-C18alkenyl, C2-C18alkynyl, C7-C25aralkyl, CN, or —CO—R17; C1-C30mono- or dialkylamino; COR9; COOR9; CONR9R10; CN; SO2R9; OCOOR9; OCOR9; NHCOOR9; NR9COR10; NH2; *—(CO)—NH—(CH2)n1—(PO)—(OR11)2; —(CO)—O—(CH2)n1—(PO)—(OR11)2; sulphate; sulphonate; phosphate; phosphonate; —(CH2)n2—[O—(SO2)]n3—OR11; —O—(CH2)n4(CO)n5—R11; —(O)n6—(CH2)n7—(PO)—(OR9)2; —(O)n6—(CH2)n7—SO2—OR9; halogen; organosilanyl; organo-siloxanyl; or a sugar residue linked directly in an ?- or ?-mode via the anomeric oxygen to the benzotropolone system or via a linear or branched alkylene, alkenyle

Abstract: The present invention relates to a process for preparing diols by hydrogenating a mixture comprising carboxylic acid, carboxylic anhydrides and/or carboxylic esters/lactones by means of a cobalt-comprising catalyst, wherein alkali metal and/or alkaline earth metal ions are added to the hydrogenation feed, excluding alkali metal and/or alkaline earth metal ions of mineral acids.

Abstract: The present invention relates to a catalyzed soot filter which comprises a wall flow substrate with an inlet end, an outlet end, a substrate axial length extending between the inlet end and the outlet end, and a plurality of passages defined by internal walls of the wall flow substrate wherein the plurality of passages comprise inlet passages having an open inlet end and a closed outlet end, and outlet passages having a closed inlet end and an open outlet end, and wherein the internal walls of the inlet passages comprise a zoned first inlet coating, the internal walls of the outlet passages comprise a zoned first outlet coating, and wherein the first inlet coating and the first outlet coating are present on the wall flow substrate at a coating loading ratio of less than 0.5.

Abstract: The invention relates to a process for the enzymatic synthesis of polyol acrylates and also to a process for preparing polymeric polyol acrylates, to the polymers obtainable by this process, and to their use for preparing radiation-curable and thermally curable coating materials.

Abstract: Described is the use of specific lactone compounds for protecting body-care and household products from photolytic and oxidative degradation. These compounds perform outstanding antioxidant properties.