Abstract: A process for preparing an aqueous styrene-butadiene polymer dispersion by free-radical aqueous emulsion polymerization of a monomer mixture M comprising

Abstract: Organic diurethanes and/or polyurethanes are prepared by reacting organic diamines and/or polyamines (a) with urea and/or alkyl cabamates (b) and alcohols (c) in the presence of soluble zirconium compounds, preferably zirconium alkoxides, zirconium acetate or zirconium acetylacetonate, as catalyst (d). They can be used for preparing diisocyanates and/or polyisocyanates by thermal dissociation.

Abstract: The reactive dyes have the general formula I where n is 0 or 1, m is 0 or 1, Y is vinyl or a radical of the formula C2H4Q, where Q is an alkali-detachable group, L is C2-C6-alkylene with or without interruption by 1 or 2 nonadjacent oxygen atoms or 1 or 2 imino groups or is cyclohexylene, Hal is fluorine or chlorine, R1 is hydrogen or hydroxysulfonylmethyl, R2 is hydrogen or hydroxysulfonylmethyl, and R3 is carboxyl or hydroxysulfonyl and may also be hydrogen when R1 and/or R2 are each hydroxysulfonylmethyl.

Abstract: In a process for preparing trialkoxysilanes by reaction of silicon metal with an alcohol in an inert solvent in the presence of a copper catalyst, the copper catalyst used is a copper salt whose anion contains at least one nonhydrolyzable fluorine atom, or a mixture thereof with other salts.

Abstract: Use of amino-substituted hydroxybenzophenones of the formula I in which the variables have the meanings explained in the description, as photostable UV filters in cosmetic and pharmaceutical preparations for protecting human skin or human hair from the sun's rays, alone or together with compounds which absorb in the UV region and are known per se for cosmetic and pharmaceutical preparations.

Abstract: Crop protection granules based on the active substance tetrahydro-3,5-dimethyl-1,3,5-thiadiazine-2-thione and comprising an outer shell having a proportion by weight of from 0.1 to 50% by weight, based on the granules, of which at least 50% by weight consists of sulfur or sulfur compounds.

Abstract: Provided is a fire resistant corespun yarn. The yarn includes a core of high temperature resistant continuous inorganic filaments; a first sheath of staple fibers surrounding the core, wherein the staple fibers comprise fibers of at least one fire resistant material selected from the group consisting of meta-aramids, para-aramids, fluoropolymers and copolymers, chloropolymers and copolymers, polybenzimidazole, polyimides, polyamideimides, partially oxidized polyacrylonitriles, novoloids, poly (p-phenylene benzobisoxazoles), poly (p-phenylene benzothiazoles), polyphenylene sulfides, flame retardant viscose rayons, polyvinyl chloride homopolymers and copolymers, polyetheretherketones, polyketones, polyetherimides, polylactides, and combinations thereof; and a second sheath of staple fibers surrounding the first corespun yarn. This yarn may be woven and knit in fine, non-plied or plied form and extends the range of fineness of fabrics below heretofore achievable limits.

Abstract: The present invention relates to novel cycloalkylalkane-carboxamides of the formula I where the substituents have the following meanings: A is C3-C6-cycloalkyl; R1 is C1-C6-alkyl or C2-C6-alkenyl; R2, R3 and R4 are hydrogen or, independently of this meaning, have one of the meanings of the radical R1; n is 0 or 1; Y is cyano or halogen; w is phenyl, naphthyl or heteroaryl.

Abstract: The present application relates to saccharin-5-carbonyl derivatives of the formula I in which the substituents have the following meanings: L is C1-C6-alkyl, C1-C6-alkoxy; Z is C1-C6-alkyl, C3-C8-cycloalkyl, C3-C6-alkenyl, C3-C5-alkynyl, phenyl-C1-C6-alkyl or phenyl, where the phenyl rings are in each case optionally mono- or polysubstituted by C1-C6-alkyl, C1-C6-alkoxy or halogen; M is hydrogen, C1-C6-alkyl, C1-C6-alkoxy, halogen, cyano, nitro or halo-C1-C6-alkyl; R1, R2, R3, R4, R5, R6, R7, R8 are hydrogen, C1-C6-alkyl; and agriculturally utilizable salts of the compound I.

Abstract: In a process for producing an alkali metal from alkali metal amalgam by electrolysis using an alkali metal amalgam as anode, a solid electrolyte which conducts alkali metal ions and a liquid alkali metal as cathode, the alkali metal amalgam as anode is kept in motion.

Abstract: Inorganic per compounds may be activated with oxime carbonates of the formula (I), A—O—CO—OR3, a hydroximide ester of formula (II): or polymeric hydroximide esters.

Abstract: Fungicidal mixtures comprise as active components a) an amide compound of the formula I A—CO—NR1R2  in which A is an aryl group or an aromatic or non-aromatic, 5- or 6-membered heterocycle which has from 1 to 3 hetero atoms which are selected from O, N and S; where the aryl group or the heterocycle may or may not have 1, 2 or 3 substituents which are selected, independently of one another, from alkyl, halogen, CHF2, CF3, alkoxy, haloalkoxy, alkylthio, alkylsulfinyl and alkylsulfonyl; R1 is a hydrogen atom; R2 is a phenyl or cycloalkyl group which may or may not have 1, 2 or 3 substituents which are selected, independently of one another, from alkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, cycloalkyl, cycloalkenyl, cycloalkyloxy, cycloalkenyloxy, phenyl and halogen, where the aliphatic and cycloaliphatic radicals may be partially or fully halogenated and/or the cycloaliphatic radicals may be substituted by from 1 to 3 alkyl groups and where the phenyl group may have from 1 to

Abstract: In a process for the preparation of acrolein by gas-phase partial oxidation under heterogeneous catalysis, a reaction gas starting mixture which contains propene and molecular oxygen in a molar C3H6:O2 ratio of >1 is reacted in reaction zones connected in series, at elevated temperatures, over solid-state catalysts, further molecular oxygen being added to the reaction gas mixture in the course of the partial oxidation.

Abstract: The present invention is a method of producing dry, alkali metal or ammonium carboxylic acid salt particles. In accordance with the invention, a molten carboxylic acid is mixed with a solution of an alkali metal-containing or ammonium-containing alkaline compound and the carboxylic acid and alkaline compound are reacted to form the carboxylic acid salt. Water is then removed from the carboxylic acid salt to produce dry, carboxylic acid salt particles. The feed ratio of the molten carboxylic acid and the alkaline compound is controlled to neutralize the carboxylic acid in the process.

Abstract: In a process for preparing aromatic polyamine mixtures which contain compounds of the formula (I), H2N—A—CH2—B—NH2  (I) where A and B are 1,4-phenylene radicals each of which independently of one another can have 1 to 4 substituents selected from C1-20 alkyls and halogens, a compound of the formula (IV) H—A—NH—CH2—HN—B—H  (IV) and/or a compound of the formula (V) H—A—NH—CH2—B—NH2  (V) where A and B are substituted as above, are reacted at from 20° C. to 200° C.

Abstract: A concentrate containing titanium dioxide is made by employing a carrier that is a liquid below about 25° C. and which has ester functionality. The concentrate may be added directly to a host polymer to provide a high concentration of titanium dioxide without causing processing interruptions. Milling of the concentration is unnecessary.

Abstract: Improved cholesteric special-effect layers are obtainable by comminuting cholesteric layers. These cholesteric layers are produced by applying at least one layer of a reactive, pourable cholesteric mixture to a moving substrate, by casting, and forming a solid cholesteric layer.

Abstract: An aqueous composition is essentially free of organic solvents, plasticizers and additional tackifiers and contains water and 20-99% by weight of a polymer and 1-80% by weight of a filler, the percentages by weight being based on the sum of the components of the aqueous composition, with the exception of water.

Abstract: A continuous alkoxylation process for the production of polyether polyols is disclosed. The process comprises the use of a plurality of reaction modules each having an outer tube and an inner tube with annular chamber between them. A spiral reaction tube is spaced from the inner tube and winds around the inner tube within the annular chamber. The spiral reaction tube includes an inlet and an outlet, each of which extend through said outer tube. A heat exchange medium flows through the annular chamber and controls the reaction temperature in the spiral reaction tube. The process comprises continuously forming an initial reaction mixture of at least one alkylene oxide and an initiator having at least one reactive hydrogen which is reactive to the alkylene oxide.

Abstract: An anionically polymerized impact-modified polystyrene has a yield stress of at least 24 MPa, measured at 23° C. to DIN 53455 and a hole impact strength of at least 11 kJ/m2, measured at 23° C. to DIN 53753, measured in each case on a specimen produced to ISO 3167. A preparation process is described.