Abstract: The invention relates to a process for preparing polymethylolated melamine and polymethylolated melamine compounds polyetherified with alkanol, wherein the methylolation reaction is carried out in a kneading reactor.

Abstract: Process for the production of paper, board and cardboard having high dry strength by separate addition of a polymer comprising vinylamine units and of ligninsulfonic acid and/or a ligninsulfonate to a paper stock, draining of the paper stock and drying of the paper products.

Abstract: What is described is a process for obtaining maleic anhydride by distillation from a solution of maleic anhydride in a high-boiling absorbent which has been obtained by gas phase oxidation of a hydrocarbon and at least partial absorption of the oxidation products into the absorbent, by i) introducing the solution into the side of a feed column with a rectifying section disposed above the feed point and a stripping section disposed below the feed point, ii) providing an upper combining column which communicates with the upper end of the rectifying section and a lower combining column which communicates with the lower end of the stripping section, iii) providing a draw column which communicates with the upper combining column and the lower combining column, iv) drawing maleic anhydride off as a side draw from the draw column, and drawing off compounds having a lower boiling point than maleic anhydride at the top of the upper combining column and the high-boiling absorbent at the bottom of the lower combining c

Abstract: The present invention concerns double stranded RNA compositions and transgenic plants capable of inhibiting expression of genes essential to establishing or maintaining nematode infestation in a plant, and methods associated therewith. Specifically, the invention relates to the use of RNA interference to inhibit expression of a target OPR3-like plant gene, and relates to the generation of plants that have increased resistance to parasitic nematodes.

Abstract: Catalysts, methods of preparing catalyst, and methods for treating exhaust gas streams are described. In one or more embodiments, a catalyst system includes an upstream zone effective to catalyze the conversion of a mixture of NOx and NH3 to N2, and a downstream zone effective for the conversion of ammonia to N2 in the presence or absence of NOx. In an embodiment, a method for preparing a catalyst system includes: first coating one end of a substrate along at least 5% of its length with an undercoat washcoat layer containing a material composition effective to catalyze the removal of ammonia; second coating with an overcoat layer containing a material composition effective to catalyze the conversion of a mixture of NOx and NH3 to N2.

Abstract: A water gas shift catalyst comprising a platinum group metal dispersed on an inorganic oxide support modified with a carbon-containing burn-out additive and a rare earth oxide. A water gas shift catalyst containing alumina, a platinum group metal, and oxides of Pr and Nd are also disclosed.

Abstract: A process for preparing crystalline hydroxylamine-O-sulfonic acid by a. reacting hydroxylamine or a hydroxylammonium salt with oleum/sulfuric acid or with chiorosulfonic acid/sulfuric acid at a temperature in the range from 90 to 130° C., b. continuing to stir the reaction mixture at a temperature in the range from 90 to 130° C. for a period of from 2 to 24 hours, c. cooling the reaction mixture to a temperature in the range from 10 to 40° C. within a period of from 1 to 12 hours and d. subsequently removing and washing the hydroxylamine-O-sulfonic acid which has crystallized out.

Abstract: The present invention relates to crystalline complexes comprising at least one agriculturally active organic compound A having at least one functional moiety which is capable as serving as a hydrogen acceptor in a hydrogen bond and thiophanate-methyl.

Abstract: A process for preparing (meth)acrylic esters (F) of N-hydroxyalkylated lactams, in which cyclic N-hydroxyalkylated lactams (L) in which R1 is C1-C5-alkylene, or C2-C20-alkylene interrupted by one or more oxygen and/or sulfur atoms and/or one or more substituted or unsubstituted imino groups and/or by one or more cycloalkyl, —(CO)—, —O(CO)O—, —(NH)(CO)O—, —O(CO)(NH)—, —O(CO)— or —(CO)O— groups, where the radicals mentioned may each be substituted by aryl, alkyl, aryloxy, alkyloxy, heteroatoms and/or heterocycles, with the proviso that R1 must not have any atom other than a carbon atom directly adjacent to the lactam carbonyl group, R2 is C1-C20-alkylene, C5-C12-cycloalkylene, C6-C12-arylene, or C2-C20-alkylene interrupted by one or more oxygen and/or sulfur atoms and/or one or more substituted or unsubstituted imino groups and/or by one or more cycloalkyl, —(CO)—, —O(CO)O—, —(NH)(CO)O—, —O(CO)(NH)—, —O(CO)— or —(CO)O— groups, where the radicals mentioned may each be substituted by aryl, alkyl, aryloxy, al

Abstract: A process is described for continuously hydrocyanating 1,3-butadiene in the presence of at least one nickel(0) catalyst with chelate ligands, wherein 1,3-butadiene and hydrogen cyanide are used in a molar ratio of from 1.6:1 to 1.1:1.

Abstract: The invention provides a process for the simultaneous preparation of 4,4?-diphenylmethanediamine and also diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates, which comprises the steps a) preparation of a mixture of diphenylmethanediamine and polyphenylenepolymethylenepolyamines by acid condensation of aniline and formaldehyde and subsequent work-up of the mixture, b) splitting-off of part of the mixture prepared in step a), c) distillation of the mixture separated off in step b) in a column, d) recirculation of the bottom product from step c) to the end product from step a) and condensation of the overhead product from step c), e) distillation of the overhead product from step c) in a column, f) recirculation of the overhead product from step e) to the end product from step a), g) isolation of the 4,4?-diphenylmethanediamine obtained as bottom product in step e), h) reaction of the mixture from step a) with phosgene and subsequent work-up of the reaction product.

Abstract: 5-Phenylpyrimidines of the formula I, in which the substituents have the following meanings: R1 is a five- to ten-membered saturated, partially unsaturated or aromatic mono- or bicyclic heterocycle comprising one to four hetero atoms selected from the group consisting of O, N or S, which heterocycle can be substituted as defined in the description, R2 is hydrogen, halogen, cyano, alkyl, haloalkyl or alkoxy; R3, R4 are hydrogen, alkyl, haloalkyl, cycloalkyl, halocycloalkyl, alkenyl, haloalkenyl, cycloalkenyl, alkynyl, haloalkynyl or cycloalkynyl, R3 and R4 together with the nitrogen atom to which they are bonded may also form a five- or six-membered ring which can be interrupted by a hetero atom and have attached to it one or more substituents; R5, R6 are hydrogen, halogen, alkyl, haloalkyl or alkoxy; R7, R8 are hydrogen, halogen, alkyl or haloalkyl; R9 is hydrogen, halogen, alkyl, alkoxy, cycloalkoxy, haloalkoxy or alkoxycarbonyl, Processes and intermediates for the preparation of these compounds, and t

Abstract: A process for preparing substituted biphenyls of the formula I in which the substituents are defined as follows: X is fluorine or chlorine; R1 is nitro, amino or NHR3; R2 is cyano, nitro, halogen, C1-C6-alkyl, C1-C6-alkenyl, C1-C6-alkynyl, C1-C6-alkoxy, C1-C6-haloalkyl, C1-C6-alkylcarbonyl or phenyl; R3 is C1-C4-alkyl, C1-C4-alkenyl or C1-C4-alkynyl; n is 1, 2 or 3, where in case that n is 2 or 3, the R2 radicals may also be different, which comprises reacting the compound of the formula II in which Hal is halogen and X and R1 are as defined above, in the presence of a base and of a palladium catalyst selected from the group of: a) palladium-triarylphosphine or -trialkylphosphine complex with palladium in the zero oxidation state, b) salt of palladium in the presence of triarylphospine or trialkylphosphine as a complex ligand or c) metallic palladium, optionally applied to support, in the presence of triarylphosphine or trialkylphosphine, in a solvent, with a diphenylborinic acid (III) i

Abstract: Processes comprising: (a) enantioselectively hydrogenating a staffing material comprising a component selected from geraniol, nerol and mixtures thereof to form optically active citronellol; (b) converting the optically active citronellol to optically active citronellal; (c) cyclizing the optically active citronellal to form a mixture comprising optically active isopulegol; and (d) subjecting the mixture to further processing comprising: (i) separating the optically active isopulegol from the mixture and hydrogenating the separated optically active isopulegol to form optically active menthol; or (ii) hydrogenating the optically active isopulegol in the mixture to form optically active menthol and separating the optically active menthol from the mixture.

Abstract: A transgenic plant transformed by a Transcription Factor Stress-Related Protein (TFSRP) coding nucleic acid, wherein expression of the nucleic acid sequence in the plant results in increased tolerance to environmental stress as compared to a wild type variety of the plant. Also provided are agricultural products, including seeds, produced by the transgenic plants. Also provided are isolated TFSRPs, and isolated nucleic acid coding TFSRPs, and vectors and host cells containing the latter.

Abstract: A method is provided for recovering a catalytic element from a fuel cell membrane electrode assembly. The method includes grinding the membrane electrode assembly into a powder, extracting the catalytic element by forming a slurry comprising the powder and an acid leachate adapted to dissolve the catalytic element into a soluble salt, and separating the slurry into a depleted powder and a supernatant containing the catalytic element salt. The depleted powder is washed to remove any catalytic element salt retained within pores in the depleted powder and the catalytic element is purified from the salt.

Abstract: Alkyldiketene-containing aqueous polymer dispersions which are obtainable by miniemulsion polymerization of hydrophobic monoethylenically unsaturated monomers in the presence of alkyldiketenes, processes for the preparation of such polymer dispersions and the use of the thus obtainable dispersions as sizes for paper or as water repellents for leather, natural and/or manmade fibers and textiles.

Abstract: The present invention concerns double stranded RNA compositions and transgenic plants capable of inhibiting expression of genes essential to establishing or maintaining nematode infestation in a plant, and methods associated therewith. Specifically, the invention relates to the use of RNA interference to inhibit expression of a target plant gene, which is an MTHFR-like gene, and relates to the generation of plants that have increased resistance to parasitic nematodes.

Abstract: A novel polynary vanadyl pyrophosphate of the general formula I (VO)a(M1-bVb)2(P2O7)c is described, in which M is one or more metals selected from Ti, Zr, Hf, Cr, Fe, Co, Ni, Ru, Rh, Pd, Cu, Zn, B, Al, Ga and In, a is from 0.5 to 1.5, b is from 0 to 0.9, c is from 1.5 to 2.5, having a crystal structure whose powder X-ray diffractogram is characterized by defined reflections. A preferred representative is (VO)Fe2(P2O7)2. The vanadyl pyrophosphates are suitable as gas phase oxidation catalysts, for example for preparing maleic anhydride from a hydrocarbon having at least four carbon atoms.

Abstract: The present invention describes a process for preparing water-emusifiable polyisocyanate.