Abstract: The invention relates to a process for producing viscoelastic polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) catalysts, d) blowing agents, wherein ai) diphenylmethane diisocyanate or aii) mixtures of diphenylmethane diisocyanate and polymethylenepolyphenylene polyisocyanates and/or aiii) prepolymers which comprise isocyanate groups and can be prepared by reacting aiv) polyether alcohols with diphenylmethane diisocyanate or mixtures of diphenylmethane diisocyanate and polymethylenepolyphenylene polyisocyanates are used as a) polyisocyanates and mixtures of at least one catalyst ci) and at least one catalyst cii) are used as catalysts.

Abstract: The use of water-soluble or water-dispersible polymers obtainable by reaction of (a) polyalkylenepolyamines, polyamidoamines or ethyleneimine-grafted polyamidoamines or mixtures thereof, (b) if desired at least bifunctional crosslinkers and (c) monoethylenically unsaturated carboxylic acids, salts, esters, amides or nitrites of monoethylenically unsaturated carboxylic acids, chlorocarboxylic acids and/or glycidyl compounds, said component (a) having an average molecular weight M, in the range from 20,000 to 2,000,000 and the molar ratio of the hydrogen atoms on the nitrogen in said component (a) to said component (b) being in the range from 1:0.7 to 1:0.9, as a laundry detergent additive.

Abstract: The present invention relates to the use of at least one heterocyclic compound of the formula (I) in which P is H or C1-C3-alkyl as a frictional wear-reducing additive in fuel compositions; to corresponding additized fuel compositions and their preparation; and to additive concentrates which comprise such compounds.

Abstract: Item comprising a first transparent thermoplastic (i) coated with a coating (ii) comprising at least one organosilicon compound, wherein, on at least one portion of the surface, on the side facing away from the first plastic (i), the coating (ii) has been adhesive-bonded, without chemical adhesion promoter, to a second thermoplastic (iii).

Abstract: The invention relates to an integrated process for preparing trioxane from formaldehyde, comprising the steps of: a) a stream A1 comprising water and formaldehyde and a recycle stream B2 consisting substantially of water and formaldehyde are fed to a trioxane synthesis reactor and allowed to react to obtain a product stream A2 comprising trioxane, water and formaldehyde; b) stream A2 is fed to a first low-pressure distillation column and distilled at a pressure of from 0.1 to 2.5 bar to obtain a stream B1 enriched in trioxane and additionally comprising water and formaldehyde, and the recycle stream B2 consisting substantially of formaldehyde and water; c) stream B1 and a recycle stream D1 comprising trioxane, water and formaldehyde are fed to a second low-pressure distillation column and distilled at a pressure of from 0.1 to 2.

Abstract: The invention relates to a continuous neutralization process in which at least one ethylenically unsaturated carboxylic acid is neutralized at least partly with a base and the temperature of the neutralized solution is less than 70° C., and also to an apparatus for carrying out the process.

Abstract: The present invention relates to the use of, if appropriate present in the form of an aqueous dispersion, polymers of ethylenically unsaturated anionic monomers for modifying the rheology of aqueous, alcoholic or aqueous/alcoholic cosmetic or dermatological compositions. The polymers are obtainable by free-radical emulsion copolymerization of water-soluble inorganic monomers in aqueous phase in the presence of, in each case, at least one stabilizing polymer of groups a) and b). The emulsion polymers are exceptionally suitable for thickening cosmetic or dermatological preparations based either on water or on alcohols.

Abstract: The present invention relates to novel 5-hydroxypyrazolines of the formula I in which the substituents are as defined below: B is phenyl, naphthyl or 5- or 6-membered hetaryl which contains one to four heteroatoms from the group consisting of O, N and S; A is C?O, C?S or SO2; R1 is alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl or haloalkynyl, cycloalkyl, cycloalkenyl, cycloalkynyl, phenyl, 5- or 6-membered heterocyclyl or hetaryl which contains one to four heteroatoms from the group consisting of O, N and S; R2 is alkyl, haloalkyl, alkenyl, haloalkyl, alkynyl, haloalkynyl, cycloalkyl, cycloalkenyl, cycloalkynyl, phenyl, 5- or 6-membered hetaryl or heterocyclyl which contains one to four heteroatoms from the group consisting of O, N and S; R3 is hydrogen, nitro, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkenyl, haloalkenyl, alkynyl, haloalkynyl or NR?2, where R? independently of one another are hydrogen or alkyl; R4 is hydrogen, halogen, nitro, cyano, NR?2, alkyl, haloalkyl, COOR? or 5- or 6-memb

Abstract: Processes for enzymatic synthesis comprising: (a) providing an aliphatic poly(oxyalkylene)amine; and (b) reacting the aliphatic poly(oxyalkylene)amine with a reactant selected from the group consisting of acrylic acid compounds and alkyl esters thereof, in the presence of a hydrolase in bulk or in a liquid reaction medium comprising an organic solvent to for a poly(oxyalkylene)acrylamide.

Abstract: The present invention relates to a solution comprising cellulose and an ionic liquid comprising anions and cations as solvent, wherein the cations comprise at least one atom selected from the group consisting of nitrogen, oxygen, sulfur and phosphorus which is present in protonated form, its preparation and use for physical and chemical treatment.

Abstract: Thermoplastic molding compositions, comprising A) from 10 to 98% by weight of at least one thermoplastic polymer, B) from 0.01 to 50% by weight of B1) at least one highly branched or hyperbranched polycarbonate having an OH number of from 1 to 600 mg KOH/g of polycarbonate (to DIN 53240, Part 2), or B2) at least one highly branched or hyperbranched polyester of AxBy type, where x is at least 1.1 and y is at least 2.1, or a mixture of these, C) from 1 to 40% by weight of a halogen-free flame retardant, selected from the group of the phosphorus-containing or nitrogen-containing compounds, or of the P—N condensates, or a mixture of these, D) from 0 to 60% by weight of other additives, where the total of the percentages by weight of components A) to D) is 100%.

Abstract: A process for preparing precipitation polymers by spray polymerization of a monomer solution comprising at least one ethylenically unsaturated monomer and at least one solvent, the monomer being soluble in the solvent, and the polymer obtained by the polymerization of the monomer being insoluble in the solvent, and also the use of the polymers for thickening liquids.

Abstract: The present invention relates to surface-modified nanoparticulate metal oxides where the metal is chosen from the group consisting of aluminum, cerium, iron, titanium, zinc and zirconium, wherein the surface modification comprises a coating with a copolymer P comprising, as monomers, A) 1 to 99 mol % of a N-vinylamide N-vinylpyrrolidone and B) 99 to 1 mol % of a monomer comprising, per molecule, a free-radically polymerizable ?,?-ethylenically unsaturated double bond and an anionogenic and/or anionic group, with the proviso that the copolymer P must comprise no further monomers chosen from the group consisting of C8-C30-alkyl esters of monoethylenically unsaturated C3-C8-carboxylic acids, N-alkyl- or N,N-dialkyl-substituted amides of acrylic acid or of methacrylic acid with C8-C18-alkyl radicals, or vinyl esters of aliphatic C8-C30-carboxylic acids.

Abstract: Processes comprising: (a) providing a feed stream comprising a C4 compound having at least a nonaromatic C—C double bond or C—C triple bond; (b) contacting the feed stream with an adsorbent which has been activated at a temperature of 450 to 1000° C. comprising at least 3% by weight of aluminum oxide to remove one or more impurities from the feed stream; and (c) contacting the feed stream from which one or more impurities have been removed with a metathesis catalyst under metathesis reaction conditions to form a compound or a mixture of compounds having a nonaromatic C—C double bond or C—C triple bond.

Abstract: The present invention relates to a method for determining dangerous or pesticidal residues in plastics, which comprises processing a plastic sample to a fine powder, converting the powder into a form accessible for determining the analyte, and determining the analyte. The present invention is thus concerned with the analysis of plastics, in particular trace analysis of residues in plastics. The method advantageously allows the use of microextraction techniques and thus a high sample throughput. The method is especially useful for determining whether or not a plastic sample such as agricultural waste plastics contain pesticidal residues.

Abstract: Thermoplastic polyurethanes which have a hardness of from 50 Shore A to 80 Shore A and are based on (b) polyester diols, wherein a polyester diol (b1) based on butane-1,4-diol and at least one further diol having at least 5 carbon atoms and a polyester diol (b2) based on butane-1,4-diol and at least one further diol having two or three carbon atoms are present as (b) polyester diols.

Abstract: The present invention relates to an isoalkane mixture, to a method for its preparation and to cosmetic or pharmaceutical compositions which comprise such a mixture.

Abstract: Solid pigment preparations comprising as essential constituents (A) 45% to 90% by weight of at least one color-conferring component comprising (A1) 5% to 100% by weight of at least one pigment and (A2) 0% to 95% by weight of at least one filler without self color, (B) 5% to 50% by weight of at least one water-soluble surface-active additive from the group of alkylene oxide group containing additives (B1) and alkylene oxide group free additives (B2), the alkylene oxide group containing additive (B1) comprising at least 5% by weight of the pigment preparation, and (C) 0.1% to 5% by weight of an antioxidant and also production and use of the pigment preparations for coloration of macromolecular organic or inorganic materials and also of plastics materials.

Abstract: The present invention relates to the use of selected dibenzanthrone or isodibenzanthrone derivatives as markers for liquids, in particular for mineral oils. The present invention further relates both to fuel and lubricant additive concentrates and to mineral oils which comprise at least one such dibenzanthrone or isodibenzanthrone derivative.

Abstract: The invention relates to a method for recovering a basic amino acid from the fermentation liquor of a micro-organism strain that produces the basic amino acid. According to said method: a) the fermentation liquor is acidified with an acid, whose pKs value in water at 25° C. ranges between 2 and 5; and b) the basic amino acid is separated from the aqueous liquor obtained in step a) by the successive charging of a single or multiple stage, serial arrangement of a strongly acidic cation exchanger in the form of a salt with the liquor that has been obtained in step a) and the subsequent elution of the basic amino acid using a basic eluant.