Abstract: A process for preparing aluminum oxide with a low calcium content, in which (1) crude alpha- and/or gamma-aluminum oxide with a total calcium content in the range from 50 to 2000 ppm, based on the crude alpha- and/or gamma-aluminum oxide, is mixed with an aqueous solution or suspension comprising the compounds selected from the group of inorganic acid, organic acid and complexing agent, (2) the mixture from step (1) is admixed with a flocculating aid, (3) in the mixture of step (2), the solids are separated from the liquid, (4) the solids separated are mixed with water in the presence or in the absence of a flocculating aid, (5) in the mixture of step (4), the solids are separated from the liquid, (6) optionally, steps (4) and (5) are repeated once or more than once, (7) optionally, the solids separated optionally after addition of further compounds, are dried.

Abstract: An aqueous dispersion of a copolymer with copolymerized units a) of at least one ethylenically unsaturated carboxylic acid, b) of at least one nonionic ethylenically unsaturated surfactant monomer, c) of at least one C1-C2-alkyl methacrylate, d) of at least one C2-C4-alkyl acrylate, where the alkyl chain length averaged over the number of alkyl groups of the alkyl acrylate is 2.1 to 4.0, is described. Following neutralization with alkali, the dispersion serves as associative thickener, in particular for liquid detergent and cleaner formulations. The thickeners are characterized by high transparency and high thickening effect coupled with high shear dilution.

Abstract: The present invention relates to polyarylene ether block copolymers according to the general formula A-K—X—K-A, where —X— is a polyarylene ether segment with number-average molar mass of at least 5000 g/mol, and A- is a segment of the general structure R2NH—(R1—NH—CO—Ar—CO—NH)n—R1—NH—, in which R1 is a linear or branched alkylene group having from 2 to 12 carbon atoms and Ar is an arylene group having from 6 to 18 carbon atoms, and R2 is selected from aryloyl, alkyloyl, and H, and in which the number average of n is from 1 to 3, and there is a coupling group K of the structure —CO—Ar3—CO— linking each A to X, in which Ar13 is an aromatic group having from 6 to 18 carbon atoms. The present invention also relates to a process for the production of the polyarylene ether block copolymers of the invention, to polymer compositions comprising the polyarylene ether block copolymers of the invention, and also to the use thereof for the production of moldings, of films, of fibers, or of foams.

Abstract: Disclosed is a catalyzed soot filter with layered design wherein the first coating of the filter comprises an oxidation catalyst comprising platinum (Pt) and optionally palladium (Pd), wherein the second coating of the filter comprises an oxidation catalyst comprising Pd and optionally Pt, wherein the Pt concentration in the second coating is lower than the Pt concentration in the first coating, and wherein the weight ratio of Pt:Pd in the second coating is in the range of from 1:1 to 0:1; and wherein the first coating and the second coating are present on the wall flow substrate at a coating loading ratio in the range of from 0.25 to 3, calculated as ratio of the loading of the first coating (in g/inch3 (g/(2.54 cm)3)): loading of the second coating (in g/inch3 (g/(2.54 cm)3)).

Abstract: Use of a mixture comprising a surfactant and a cosurfactant in the form of an aqueous solution for flooding underground deposits of hydrocarbons for mobilizing and recovering the hydrocarbons from the underground deposits, the cosurfactant being a substance or a group of substances selected from the following list: an amphiphilic comb polymer having a backbone with two or more side chains attached to the backbone, the side chains differing from one another and/or the side chains differing from the backbone in their amphiphilic character, an amphiphilic polymer having one or more hydrophobic subunits [A2] based on a polyisobutene block, at least 50 mol % of whose polyisobutene macromolecules have terminally arranged double bonds, and one or more hydrophilic subunits [B2], or an amphiphilic polymer having the general structural formula

Abstract: The present invention relates to a process for preparing a porous metal-organic framework comprising at least one at least bidentate organic compound coordinated to at least one metal ion, where the at least one metal ion is based on an aluminum ion and the at least one at least bidentate organic compound is based on fumaric acid, by reacting at least one aluminum compound with at least fumaric acid in an alkaline aqueous medium, optionally in the presence of at least one base, at a temperature in the range from 20° C. to 100° C. at an absolute pressure of not more than 2 bar for from 0.2 to 4 hours.

Abstract: The invention relates to a process for producing moldings made of a fiber-reinforced polymer, comprising the following steps: (a) inserting a fiber structure into a mold and injecting a polymer precursor compound around the fiber structure or saturating a fiber structure with a polymer precursor compound and inserting the saturated fiber structure into a mold, where the viscosity of the polymer precursor compound is at most 2000 mPas, (b) polymerizing the polymer precursor compound to give the polymer, to produce the molding, (c) removing the molding from the mold as soon as the polymerization process has proceeded at least to the extent that the molding is in essence dimensionally stable.

Abstract: The invention relates to a wheel for a motor vehicle, comprising a wheel body (3) with a rim tape (7) for receiving a tire and a rim star (9) or a wheel disk, through-holes (13) for receiving fastening means (17) of the wheel body (3) on a vehicle axle being formed in the rim star or in the wheel disk. The wheel body (3) is produced from a reinforced polymer material and is connected non-positively, positively or integrally to a cap (5), the cap (5) covering the rim star (9) or the wheel disk. Furthermore, the invention also relates to a process for producing the wheel.

Abstract: The present invention relates to a composition, which comprises (a) a compound of formula (A-1) (b) a compound of formulae (B-1), (B-11), (B-111) or (B-IV) wherein Z1 is linear C12-alkyl or linear C18-alkyl, and (c) a compound, which is a further sterically hindered phenolic antioxidant. The composition is used for stabilization of an organic polymer against degradation by heat, light and/or oxidation. The organic polymer is for example a styrene-butadiene copolymer, a styrene-isoprene copolymers or polybutadiene.

Abstract: The present invention relates to a method of purifying organic diphosphite compounds.

Abstract: The present invention concerns microcapsules comprising a capsule core and a capsule wall, the capsule wall being constructed from 30% to 90% by weight of one or more C1-C24-alkyl esters of acrylic and/or methacrylic acid, acrylic acid, methacrylic acid and/or maleic acid (monomers I), 10% to 70% by weight of a mixture of divinyl and polyvinyl monomers (monomers II), the fraction of polyvinyl monomers being in the range from 2% to 90% by weight based on the monomers II, and also 0% to 30% by weight of one or more miscellaneous monomers (monomer III), all based on the total weight of the monomers, a process for their production and their use in textiles, bindered building materials and heat transfer fluids.

Abstract: A process for producing a rigid polymer foam comprises reacting components A to C in the presence of component D or an isocyanate-functional prepolymer of components A and B with component C in the presence of component D, the total amount of which is 100 wt %, (A) 35 to 65 wt % of at least one polyisocyanate component A, (B) 5 to 50 wt % of at least one polyol component B, (C) 1 to 59 wt % of at least one polycarboxylic acid component C, and (D) 0.01 to 3 wt % of at least one Lewis base component D, wherein the reaction takes place with release of carbon dioxide.

Abstract: A method for preparing an aqueous based coating system, and coating systems made thereby, for coating onto paper and/or paperboard for providing barrier to liquid, moisture vapor, oil and grease including a pigment and a polymer emulsion system or natural based binding system. One alternative of the method includes surface treating a pigment to form a pigment system and mixing a polymer emulsion system or natural based binding system with the pigment system. Another alternative of the method includes mixing a pigment and polymer emulsion system or natural based binding system and hydrophobizing the polymer emulsion system or natural based binding system by adding silanes, siloxanes, siloxane/silicone resin blends, or their carbon based analogs.

Abstract: The present invention relates to a method for preparing 4-chloro-, 4-bromo- or 4-iodobenzaldehyde oximes and phenyl-substituted isoxazoline compounds prepared from these oximes.

Abstract: A composition for cleaning a surface and an article including a substrate and the composition for cleaning the surface are provided herein. The composition comprises a biocide, a first alcohol alkoxylate, an alkyl polyglycoside, a supplemental alcohol alkoxylate, and water. The composition is substantially free of organic solvents and has a cleaning performance of from 30% to 70% as determined in accordance with the Federal Test method Std. No. 536A/GEN, “Soap and Soap-Products (Including Synthetic Detergent)”.

Abstract: The present invention relates to coating compositions which comprise dispersions of polymers obtained by a two-stage procedure, to processes for preparing them, and to their use.

Abstract: The crystalline form of 2-(4,6-bis-biphenyl-4-yl-1,3,5-triazin-2-yl)-5-(2-ethyl-(n)-hexyloxy)phenol, characterized by a melting range of 118-126° C.

Abstract: Organic materials which possess outstanding stability to oxidative, thermal or light-induced degradation comprise as stabilizers at least one compound of the formula I wherein the general symbols are as defined in claim 1. The compounds of formula I are especially useful as stabilizers for protecting polymers and lubricants against oxidative, thermal or light-induced degradation and as scavengers for oxidized developer in color photographic material.

Abstract: The alkoxylate mixtures comprise alkoxylates of the formula (I) C5H11CH(C3H7)CH2O(B)p(A)n(B)m(A)qH??(I) where A is ethyleneoxy, B, in each case independently, are C3-10-alkyleneoxy or mixtures thereof, groups A and B being present in the form of blocks in the stated sequence, p is a number from 0 to 10, n is a number greater than 0 to 20, m is a number greater than 0 to 20, q is a number greater than 0 to 10, p+n+m+q is at least 1, from 70 to 99% by weight of alkoxylates A1, in which C5H11 is n-C5H11, and from 1 to 30% by weight of alkoxylates A2, in which C5H11 is C2H5CH(CH3)CH2 and/or CH3CH(CH3)CH2CH2, being present in the mixture.

Abstract: The invention provides metal carbamates of the general formula (I) where R1 and R2 are each an alkyl group.