Abstract: Disclosed herein are bridged perinones/quinophthalones of the general formula (I) or tautomeric forms thereof where X1, X2, Ar1 Ar2 and B are as described herein and are particularly characterized in that the bridging B is a radical of the formula —T1—W—T2—, where T1 and T2 are independently O or S and W is alkylene, especially C1-C6-alkylene, C6-C10-arylene, especially phenylene or cycloalkylene, which are each optionally substituted or is the radical of the formula (a) where the phenyl rings are optionally substituted and A is a radical of the formula O, S, SO, SO2 or CO, optionally substituted alkylene, or optionally substituted cycloalkylene, said alkylene or cycloalkylene being attached to the adjacent phenyl rings itself or else via its substitutents, or W is a radical of the formulae where s and t are independently from 1 to 6, the ends of the radical B each being attached to an aromatic carbon atom of the two radicals Ar1

Abstract: A reinforced polyamide molding composition is disclosed. Characterized in that its viscosity at a shear velocity of 10 s−1 is greater than 1000 Pas and a shear velocity of 1000 s−1 is less than 300 Pas, at processing temperatures of 40 to 80° C. above its melting point, the composition is particularly suitable for thermoforming applications.

Abstract: The present invention relates to the use of a 24-membered cyclodepsipeptide of the formula (I) for controlling animal pests in agriculture, forests and the protection of materials, and to pesticides comprising this depsipeptide.

Abstract: A process has now been discovered that permits the simultaneous crosslinking and derivation of an, optionally hydrogenated, polymer whose backbone is composed of a conjugated diene, an unsaturated nitrile and an unsaturated carboxylic acid in the presence of a coupling/condensing agent. This permits the preparation of a novel polymeric material that is an optionally hydrogenated polymer of a conjugated diene, an unsaturated nitrile and a derived unsaturated acid. It has also been found that this novel polymeric material has unexpected and valuable properties.

Abstract: Process for preparing compounds of the formula (I) characterized in that an acrylic compound of the formula is reacted with an amine of the formula in which R1, R2, R3, R4 and Z are as defined in the description.

Abstract: A molding composition having good surface gloss, high elongation at break and good thermoplastic processability is disclosed. The composition contains (A) a graft polymer that is obtained by free-radical polymerization of resin-forming vinyl monomers in the presence of rubber in latex form, (B) a copolymer of styrene and acrylonitrile and an optional (C) a resin selected from the group consisting of polycarbonates, polyester-carbonates, polyesters and polyamides. The preparation of the graft polymer is characterized in that (i) before the start of the grafting polymerization reaction the rubber latex is brought to a pH of 9 to 11, (ii) the redox initiator components are employed in amounts of 0.1 to 2.5 wt. % (based on the monomers metered in) and (iii) during the entire grafting polymerization reaction the pH remains constant±0.5 and in the range of 11.0 to 8.8, and (iv) the temperature difference between the start and end of the reaction is at least 10° C.

Abstract: The invention relates to substituted or unsubstituted benzodioxinothiophenes, their preparation and their use for preparing electrically conductive oligomers or polymers, also oligomers or polymers comprising these thiophene derivatives as repeating unit.

Abstract: This invention relates to process for dihydroxylation of olefins using transition metal catalysts to obtain monofunctional, bifunctional, and/or polyfunctional 1,2-diols of the formula (I) R1R2C(OH)—C(OH)R3R4  (I) where R1 to R4 are defined herein, by reacting an olefin of the formula (II) R1R2C═CR3R4  (II) where R1 to R4 are defined as for formula (I), with molecular oxygen in the presence of an osmium, ruthenium, or manganese compound in water or a water-containing solvent mixture at a pH of from 7.5 to 13.

Abstract: The invention relates to a novel process that makes it possible to epoxidize &agr;,&bgr;-unsaturated enones or &agr;,&bgr;-unsaturated sulfones with high conversions and enantiomeric excesses in a two-phase system without addition of water in the presence of an organic solvent, a base, an oxidant, a diastereomer- and enantiomer-enriched homo-polyamino acid that has not been separately preactivated as catalyst, and a specific phase-transfer catalyst as cocatalyst.

Abstract: The present invention relates to a process for preparing 4,6-dichloropyrimidine by reaction of 4-chloro-6-hydroxypyrimidine with an acid chloride.

Abstract: Process for extracting aqueous ketazine solutions which is carried out using an aqueous ketazine solution having a salt content of 5 to 27% by weight and an ammonia content of 0 to 28% by weight to extract at temperatures of 50 to 120° C., which is characterized in that the ketazine solution to be extracted has a molar excess of 50 to 200% of ketone based on the ketazine to be extracted, and that an aliphatic hydrocarbon extractant is used which has a boiling point of 150 to 300° C. at atmospheric pressure.

Abstract: Paint and coating material system comprising a) at least one solids component comprising at least one organic or inorganic white, black or chromatic pigment, organic or inorganic fillers, or mixtures thereof, and b) at least one binder component, characterized in that the components of the system in water, with a specific energy input of less than 150 J/cm3, based on the sum of the volumes of the components and water, produced an aqueous dispersion having a particle size of <60 &mgr;m (determined in accordance with ISO 1524: 1983).

Abstract: The present invention relates to a process for the preparation of nitrodiphenylamines by reaction of nitrohalogens with anilines, a base and a catalyst, and to a process for the preparation of aminodiphenylamine by hydrogenation of the nitrodiphenylamine intermediately prepared.

Abstract: The present invention relates to rubber mixtures with improved processing behavior and high filler activity, containing 1,4-butenediol and/or 1,4-butenediol polyether, as well as the use of the rubber mixtures for the production of vulcanizates, in particular for the production of highly reinforced, abrasion-resistant molded articles, and preferably for the production of tires that have a low rolling resistance and a high abrasion resistance.

Abstract: A composite structural article, of preferably metal and thermoplastic material is described. The composite structural article comprises: (a) at least one reinforcing element (2) having sized openings (20); and (b) at least three profiled sections (1, 3, 4). A portion of each profiled section (1, 3, 4) is connected interlockingly with a portion of the reinforcing element (2). At least two of the profiled sections (1, 3, 4) have terminal portions each having a projecting region (5) that engages interlockingly with the sized openings (20) of the reinforcing element (2), such that a portion of the reinforcing element (2) surrounds at least partially the projecting regions (5). The profiled sections (1, 3, 4) are further joined to the reinforcing element (2) by means of thermoplastic material (11, 13) injected in the region of each interlocking connection with the reinforcing element (2).

Abstract: The present invention relates to rubber mixtures based on silica and carbon black-filled solution styrene/butadiene rubbers in which the silica has been partially replaced by rubber gels. The vulcanizates produced from the rubber mixtures of the present invention are distinguished by improved cushioning behavior at 0° C. and 60° C., and this is accompanied by better resistance to slipping when wet and improved rolling resistance. In addition, the vulcanizates have good resistance to wear. The processing behavior of the unvulcanized rubber mixtures (compound viscosity and Mooney relaxation) is not impaired by the partial substitution of silica.

Abstract: Asymmetrical compounds composed of two different heterocyclic and/or carbocyclic rings linked via a conjugated chain containing an uneven number of chain atoms are useful electrochromic compounds and can be used for producing electrochromic devices.

Abstract: The invention relates to a toner containing low-silicon magnetite particles.

Abstract: Thermoplastic molding composition characterized in that the polymer proportion soluble in dichloromethane has a c50 value of acrylonitrile of ≧28 wt. % and a chemical distribution (c90−c10 value) of the acrylonitrile of ≧5 wt. % is disclosed. The composition is characterized by its improved processability by extrusion and thermoforming.

Abstract: The invention relates to a process for the preparation of &pgr;-conjugated polymers by (1) complexing a monomeric compound with a cyclodextrin, and (2) polymerizing the complexed compound using a chemical oxidant.