Abstract: Aqueous dispersions of water-soluble and/or water-swellable anionic polymers which are obtainable by free radical polymerization of ethylenically unsaturated, anionic monomers in an aqueous medium in the presence of at leas one stabilizer, the polymerization being carried out in the presence of at least one water-soluble polymer of the groups consisting of (a) graft polymers of vinyl acetate and/or vinyl propionate on (i) polyethylene glycols or (ii) polyethylene glycols or polypropylene glycols blocked at one or both terminal groups with alkyd carboxyl or amino groups, polyalkylene glycols, polyalkylene glycols blocked at one or both terminal groups with alkyl carboxy or amino groups and (b) water-soluble copolymers of (b1) nonionic monoethylenically unsaturated monomers, (b2) cationic monoethylenically unsaturated monomers and if appropriate (b3) anionic monoethylenically unsaturated monomers, the fraction of the interpolymerized cationic monomers being greater than that of the anionic monomers, as a

Abstract: A finely divided, cationic or amphoteric, aqueous polymer dispersion which is obtainable by emulsion polymerisation of ethylenically unsaturated monomers in the presence of a cationic or amphoteric protective colloid, wherein first the cationic or amphoteric protective colloid is prepared by polymerising a monomer blend in the presence of at least one first polymerisation initiator in an organic solvent, and is carried out in a pressurised reactor at a pressure of at least 1720 kPa and at a temperature of at least 150° C.

Abstract: A thermoplastic molding composition is provided, which comprises A) from 30 to 90% by weight of at least one thermoplastic polymer, B) from 10 to 70% by weight of microcapsules with a capsule core made of latent-heat-accumulator material and a polymer as capsule wall, where the latent-heat-accumulator material has its solid/liquid phase transition in the temperature range from ?20° C. to 120° C.

Abstract: A process for preparing olefins by reaction of carbon monoxide with hydrogen in the presence of a an iron-comprising heterogeneous catalyst produced by the following steps: thermal decomposition of gaseous iron pentacarbonyl to give carbonyl iron powder having spherical primary particles; treatment of carbonyl iron powder with hydrogen, resulting in the metallic spherical primary particles at least partially forming agglomerates; contacting the agglomerates with iron pentacarbonyl; and thermal decomposition of the iron pentacarbonyl to give at least predominantly pore-free and void-free secondary particles.

Abstract: Use of modified sheet silicates (a) in combination with at least one polycationic polymer (b) for protecting metallic surfaces against corrosion. Metallic surfaces which are protected against corrosion by means of modified sheet silicates (a) in combination with at least one polycationic polymer (b). Method of protecting metallic surfaces against corrosion, which comprises applying formulations to the metallic surface to be protected. Anticorrosion composition comprising modified sheet silicates (a) and at least one polycationic polymer (b).

Abstract: The present invention relates to flame retardant polymer compositions which comprise phosphinic acid salts in combination with polymer chain extension agents on the basis of epoxide structures and oxides or hydroxides of selected metals. The compositions are especially useful for the manufacture of flame retardant compositions based on thermoplastic polymers, especially polyolefin homo- and copolymers, such as polybutylene terephthalate (PBT).

Abstract: The invention relates to a flame-retardant thermoplastic polyurethane based on at least one diisocyanate and on at least one substance reactive toward isocyanate, and preferably on at least one chain extender, and also optionally on at least one catalyst, and comprising at least one flame retardant, and also optionally additives and/or auxiliaries, where one flame retardant is a metal hydroxide at least to some extent surrounded by a coating, and the metal hydroxide is aluminum hydroxide, aluminum oxide hydroxide, or a mixture of said hydroxides, and also to an associated production process and use.

Abstract: The present invention provides a composition comprising a) at least 1% by weight of copolymer synthesized from monomers M comprising i) at least one ethylenically unsaturated monomer M1 containing sulfonic acid groups, ii) at least one monomer M2 selected from C1-C4 alkyl (meth)acrylates, and iii) at least one monomer M3 selected from C6-C22 alkyl (meth)acrylates; b) at least 10% by weight of organic solvent; c) not more than 10% by weight of water; d) at least 1% by weight of water-insoluble pesticide; and e) at least 1% by weight of nonionic surfactant. Further provided is a process for preparing this composition by contacting the copolymer, the organic solvent, the water-insoluble pesticide, and the nonionic surfactant. The invention relates additionally to the agrochemical application of the composition.

Abstract: Thermoplastic molding compositions comprising A) from 10 to 99.6% by weight of a thermoplastic polyamide, B) from 0.1 to 60% by weight of red phosphorus, C) from 0.5 to 30% by weight of a liquid-crystalline polyester (LCP), D) from 0 to 55% by weight of a fibrous or particulate filler or a mixture of these, E) from 0 to 40% by weight of further additives, where the sum of the percentages by weight of A) to E) is 100%.

Abstract: Disclosed is a process for manufacturing a nitrogen-containing porous carbonaceous material with an optional inorganic salt content of up to 50 ppm by weight. The process comprises the following steps: (A) conversion of (a) at least one heterocyclic hydrocarbon with at least two NH2-groups per molecular with (b) at least one aromatic compound with at least two aldehyde groups per molecular, (B) heating in the absence of oxygen to temperature in the range of from 700 to 1200° C.

Abstract: The invention relates to a flame-retardant thermoplastic polyurethane based on at least one diisocyanate and on at least one substance reactive toward isocyanate, and preferably on at least one chain extender, and also optionally on at least one catalyst, and comprising at least one flame retardant, and also optionally additives and/or auxiliaries, where one flame retardant is a metal hydroxide at least to some extent surrounded by a coating, the material comprises, as further flame retardant, at least one phosphorus-containing flame retardant which is a derivative of phosphoric acid, phosphonic acid, and/or phosphinic acid and the material further comprises hydrotalcite and/or phyllosilicate, and also to an associated production process and the use.

Abstract: The invention relates to a method of regulating the viscosity of a mixture (125; 210) comprising at least two components having different viscosities, which comprises the steps: (a) determination of the viscosity (132; 222) of the mixture (125; 210) by means of ultrasound measurements, (b) standardization of the viscosity determined (132; 222) to standard conditions, (c) comparison of the standardized viscosity (14) with a prescribed intended value (134; 224), (d) adjustment of the viscosity of the mixture (125; 210) by increasing or decreasing the proportion of at least one component of the mixture, where the ultrasound measurements in step (a) are carried out at or in a line conveying the mixture or in a vessel.

Abstract: Disclosed is a method for viscosity breaking of a polypropylene polymer, a polypropylene copolymer or a polypropylene polymer blend, which process comprises adding a chain transfer agent and an initiator to a polypropylene polymer, polypropylene copolymer or polypropylene polymer blend and heating the resultant composition. The chain transfer agent has a Cs value of greater than or equal to about 0.04 as measured in ethylene polymerization at 130° C. The initiator is for example an organic or inorganic peroxide, a carbon based radical generator, a bis azo compound, a stable nitroxyl compound, a sterically hindered NO-acyl compound or a sterically hindered alkoxyamine compound.

Abstract: Process for preparing 4-cyclohexyl-2-methyl-2-butanol The present invention relates to a process for preparing 4-cyclohexyl-2-methyl-2-butanol. The process comprises the following steps: a) reaction of styrene with isopropanol at elevated temperature to obtain 4-phenyl-2-methyl-2-butanol, and b) heterogeneously catalyzed hydrogenation of 4-phenyl-2-methyl-2-butanol over a catalyst suitable for ring hydrogenation of aromatics.

Abstract: Provided are processes for making an amide of a carboxylic acid by reacting an amine of the formula (I) H—NR1R2 ??(I) wherein R1 and R2 are the same or different, R1 comprising a C1-C4-alkyl, and R2 comprising hydrogen or a C1-C4-alkyl, the amine having a lower boiling point than water, with a carboxylic acid with at least 3 carbon atoms per molecule, said carboxylic acid optionally comprising at least one alcoholic hydroxyl group per molecule, and selecting a molar ratio of amine to carboxylic acid in the range of from 1.5:1 to 1:1. The reaction step occurs under temperature and pressure conditions at which water and amine according to formula (I) are gaseous, and in a single reactor, the water formed together with any unreacted amine is distilled off, any unreacted amine is separated from the water and said the unreacted amine is reintroduced into the reaction mixture.

Abstract: A composite material suitable for an inexpensive cathode material for a lithium-sulfur cell. The composite material is obtained by thermally treating a mixture, wherein the mixture comprises: (A) a fluorinated polymer and (B) carbon in a polymorph containing at least 60% sp2-hybridized carbon atoms; or (A) a fluorinated polymer and (C) a sulfur-containing component; or (A) a fluorinated polymer, (B) carbon in a polymorph containing at least 60% sp2-hybridized carbon atoms, and (C) a sulfur-containing component, in which the proportion of the sum of the proportions by weight of starting components (A) and (B), (A) and (C), or (A), (B), and (C) in the respective mixture prior to the thermal treatment, based on the total weight of the mixture, is 90 to 100% by weight, and wherein the thermal treatment of the mixture containing the above starting components is performed at a temperature of at least 115° C.

Abstract: The invention relates to radiation-curable aqueous dispersions having mercapto groups, to processes for preparing them, and to their use.

Abstract: Thermoplastic molding compositions, comprising A) from 10 to 99.999% by weight of a polyimide B) from 0.001 to 20% by weight of iron powder with a particle size of at most 10 ?m (d50 value), which is obtainable via thermal decomposition of pentacarbonyliron, C) from 0 to 70% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%.

Abstract: A process for removing metallic impurities from a product mass flow comprising water-absorbing polymer particles, wherein the product mass flow has a temperature of 35 to 90° C.

Abstract: Extracts of the plant Cassia alata are used in cosmetic and/or dermatological skin care preparations. These preparations possess antioxidative and anti-inflammatory properties and exhibit preventive and curative effect on skin aging.