Abstract: A process for preparing colorants of the general formula (Ia), (Ib) or (Ic) or mixtures thereof, comprises reacting (a) tetracarboxylic acids or their functional derivatives with (b) at least one compound selected from i. aliphatic amines, ii. aromatic amines, iii. aliphatic diamines, iv. aromatic diamines, (c) optionally in the presence of further additives, (d) optionally in the presence of wetting agents in a mixing apparatus. These colorants are useful for coloration of macromolecular organic and inorganic materials of natural and synthetic origin.

Abstract: The invention relates to hydrogels capable of absorbing aqueous fluids, which hydrogels are produced by polymerization of olefinically unsaturated carboxylic acids or their derivatives. The hydrogels are characterized in that before, during or after the polymerization reaction and before drying a silicic acid alkali salt of the general formula (I) M2O×nSiO2 is added to the polymerization reaction mixture. In said formula M is an alkali metal and n is a number between 0.5 and 4. The hydrogel obtained in this way is then dried at an elevated temperature. The invention also relates to a method for producing said hydrogels and to their use for absorbing aqueous fluids.

Abstract: The present invention pertains transgenic plant cells and mature plants comprising Oxidoreductase Stress Related Proteins (ORSRP) resulting in increased tolerance and/or resistance to environmental stress as compared to non-transformed wild type cells and methods of producing such plant cells or plants. Further object of the present invention are isolated ORSRPs or ORSRP encoding nucleic acids from plants.

Abstract: A dehydrogenation catalyst is described that comprises an iron oxide, an alkali metal or compound thereof, and rhenium or a compound thereof. A process for preparing a dehydrogenation catalyst comprising preparing a mixture of iron oxide, an alkali metal or compound thereof, and rhenium or a compound thereof is also described. Additionally, a dehydrogenation process using the catalyst and a process for preparing polymers are described.

Abstract: An additive formulation suitable for antistatic modification and improving the electrical conductivity of inanimate organic material, consisting essentially of (A) from 1 to 50% by weight of an olefin-sulfur dioxide copolymer, (B) from 1 to 50% by weight of a compound which comprises one or more basic nitrogen atoms and has at least one relatively long-chain linear or branched hydrocarbon radical having at least four carbon atoms or an equivalent structural element which ensures the solubility of component (B) in the inanimate organic material, (C) from 0.1 to 30% by weight of an oil-soluble acid and (D) from 1 to 80% by weight of a high-boiling organic solvent which consists of one or more molecule types, where at least 80% by weight of these molecule types have a boiling point of more than 150° C. at standard pressure, where the sum of all components adds up to 100% by weight.

Abstract: The present invention relates to an aqueous polymer dispersion whose dispersed addition polymer P comprises, copolymerized in free-radically polymerized form, at least one polar monomer having a water solubility of greater than 50 g/liter (measured at 20° C.), and obtainable by free-radically initiated aqueous emulsion polymerization, the polar monomer being metered to the reaction mixture during the polymerization process at a variable, i.e., nonconstant rate, for example in the sense of a rate gradient. The present invention further relates to processes for preparing these aqueous polymer dispersions, to their use as binders and/or in coatings, and also to coatings comprising the polymer dispersion of the invention.

Abstract: A method is provide for preparing potassium metal which comprises embedding a polycrystalline alkali metal ??-Al2O3 molding in an oxidic powder containing potassium and aluminum of a molar K2O:Al2O3 ratio within the range of 1:(x?1) to 1:(x+1), the weight of oxidic powder amounting to at least two times the weight of the molding; heating the embedded molding at a rate of at least 100° C. per hour to at least 1100° C.; and further heating to at least 1300° C., this temperature being maintained for at least one hour prior to cooling.

Abstract: Chemically combined chlorides are removed from intermediate and product streams of a hydrocarbon reforming process by contacting the streams with zeolite 13X, having a Si/Al ratio of less than 1.25.

Abstract: The present invention relates to a process for producing polyamide moldings by subjecting a lactam-containing polymerizable composition to a rotomolding process.

Abstract: The invention relates to the use of a thermoplastic molding composition which comprises at least one polybiphenyl ether sulfone polymer, to produce moldings for conveying gas.

Abstract: The present invention relates to electrochemical cells comprising (A) at least one cathode comprising at least one lithium ion-containing transition metal compound, (B) at least one anode, and (C) at least one layer comprising (a) at least one sulfur-containing polymer (a) comprising sulfur atoms bound in the form of monovalent thiol groups —SH or thiolate groups —S? or bound as divalent disulfide or polysulfide bridges —(S)m— in which m is an integer from 2 to 8, and (b) optionally at least one binder. The present invention further relates to the use of inventive electrochemical cells, and to lithium ion batteries comprising at least one inventive electrochemical cell.

Abstract: The present invention relates to specific acylhydrazone compounds, their use as oxidation catalysts and to a process for removing stains and soil on textiles and hard surfaces. The compounds are substituted with a specific cyclic ammonium group adjacent to the acyl group. Further aspects of the invention are compositions or formulations comprising such compounds.

Abstract: A process for removing sulphur oxides from a fluid stream, such as flue gas, that comprises a) providing a non-aqueous absorption liquid containing at least one hydrophobic amine, the non-aqueous absorption liquid being incompletely miscible with water: b) treating the fluid stream in an absorption zone with the non-aqueous absorption liquid to transfer at least part of the sulphur oxides into the non-aqueous absorption liquid and to form a sulphur oxide-hydrophobic amine-complex: c) causing the non-aqueous absorption liquid to be in liquid-liquid contact with an aqueous liquid whereby at least part of the sulphur oxide-hydrophobic amine-complex is hydrolyzed to release the hydrophobic amine and sulphurous hydrolysis products, and at least part of the sulphurous hydrolysis products is transferred into the aqueous liquid; d) separating the aqueous liquid from the non-aqueous absorption liquid. The process mitigates absorbent degradation problems caused by sulphur dioxide and oxygen in flue gas.

Abstract: A superabsorbent obtainable by a process for producing superabsorbents by polymerizing a monomer solution comprising a) at least one ethylenically unsaturated monomer which bears acid groups and is optionally present at least partly in salt form, b) at least one crosslinker, c) at least one initiator, d) optionally one or more ethylenically unsaturated monomers copolymerizable with the monomers mentioned under a), e) optionally one or more water-soluble polymers, the process further comprising drying of the resulting polymer and optionally grinding of the dried polymer and sieving of the ground polymer and optionally surface postcrosslinking of the dried and optionally ground and sieved polymer, wherein at least one sulfonic acid derivative is added to the monomer mixture and/or to the polymer prior to the drying, and at least one phosphonic acid derivative is added to the polymer after the drying or optionally after the surface postcrosslinking, exhibits improved stability to discoloration in the course o

Abstract: The present invention relates to methods for the design and production of synthetic promoters with a defined specificity and promoters produced with these methods.

Abstract: A process for thermal surface postcrosslinking of water-absorbing polymer particles, wherein the polymer particles are coated with an aqueous solution, the coated polymer particles are deagglomerated and the deagglomerated polymer particles are thermally surface postcrosslinked by means of a drum heat exchanger with an inverse screw helix.

Abstract: A superabsorbent having surfaces complexed with polyvalent metal ions and which contains at least one phosphonic acid derivative, and the molar ratio between polyvalent metal and phosphonic acid derivative is at most 1.2/n, where n is the number of phosphonic acid groups in the phosphonic acid derivative. The superabsorbent exhibits good stability against discoloration and a surprisingly low caking tendency without any significant impairment of its performance properties.

Abstract: The present invention relates to a process for the continuous production of polyether alcohols by catalyzed addition of at least one alkylene oxide to at least one hydrogen-functional starter compound, wherein at least one catalyst exhibits the structural element R1/R2C=N?R3.

Abstract: A catalyst material including a catalyst carrier including a porous alumina support and a hindrance layer on the alumina support, the hindrance layer comprising one or more of a sulfate, carbonate, hydroxide, or oxide of barium, strontium, or calcium is described. The catalyst carrier further includes a rare earth oxide. The catalyst material can further comprise a platinum group metal. The catalyst material is useful for methods and systems of abating pollutants from automotive exhaust gas.

Abstract: The present invention relates to a method for the continuous production of a polymer by radical polymerization, wherein at least three materials are mixed with microstructures in one or more mixers and are then polymerized in at least one reaction zone.