Abstract: The present invention relates to a process for preparing polytetrahydrofuran or tetrahydrofuran copolymers by polymerization of tetrahydrofuran in the presence of a telogen and/or a comonomer over a fixed bed of an acid catalyst, in which the temperature of the polymerization mixture increases in the direction of flow through the catalyst bed.

Abstract: The invention provides an adhesive or sealant comprising at least (A) one compound selected from the group consisting of silylated polyurethanes, silylated polyureas, silylated polyethers, silylated polysulfides and silyl-terminated acrylates, and at least (B) one cyclohexane polycarboxylic acid derivative. The composition has enhanced extensibility with good adhesion properties and high tensile strength. A process is disclosed for preparing the adhesive or sealant, and also disclosed is the use thereof for producing material bonds between parts to be joined.

Abstract: The present invention pertains to an electrode layer comprising a porous film made of oxide semiconductor fine particles sensitized with certain methine dyes.

Abstract: Non-cytotoxic compositions for tooth whitening are disclosed, as are their methods of use are also provided.

Abstract: The present invention relates to an acidic, aqueous composition which comprises a thiodiglycol alkoxylate for treating metallic surfaces. The invention furthermore relates to the use of one or more compound(s) of the general formula (I) as a corrosion inhibitor.

Abstract: The present invention relates to pigment compositions with improved and adjustable sparkling effect comprising A) a platelet-like perlite; and B) an effect pigment; and a process for their production and their use in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings (paints), printing inks, plastics, cosmetics, glazes for ceramics and glass. The pigment compositions show an improved sparkle effect; in particular an attractive high sparkle intensity.

Abstract: The present invention relates to a process for preparing 4-cyclohexyl-2-methyl-2-butanol. The process comprises the following steps: a) reaction of styrene with isopropanol at elevated temperature to obtain 4-phenyl-2-methyl-2-butanol, and b) heterogeneously catalyzed hydrogenation of 4-phenyl-2-methyl-2-butanol over a catalyst suitable for ring hydrogenation of aromatics.

Abstract: The process relates to a process for preparing delta-valerolactone (VLO) in the gas phase by catalytic dehydrogenation over at least two different catalysts.

Abstract: The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase and flowing the gas cocurrent through the polymerization chamber, which comprises thermal postcrosslinking in the presence of steam.

Abstract: The present invention relates to fungicidal plant protection formulations comprising: a) dimethomorph as active substance A and b) at least one active substance B from the group of the dithiocarbamates, where the plant protection formulation is formulated as an oil suspension concentrate of the active substances A and B in a liquid organic diluent C which is selected among hydrocarbons, vegetable oils, fatty acid esters and their mixtures, and where the oil suspension concentrate furthermore comprises at least one surface-active substance D.

Abstract: The present invention relates to a process for producing clingfilms by using biodegradable polyesters obtainable via polycondensation of: i) from 65 to 80 mol %, based on components i to ii, of one or more dicarboxylic acid derivatives or dicarboxylic acids selected from the group consisting of: succinic acid, adipic acid, sebacic acid, azelaic acid, and brassylic acid; ii) from 35 to 20 mol %, based on components i to ii, of a terephthalic acid derivative; iii) from 98 to 102 mol %, based on components i to ii, of a C2-C8-alkylenediol or C2-C6-oxyalkylenediol; iv) from 0.1 to 2% by weight, based on the polymer obtainable from components i to iii, of at least trifunctional crosslinking agent or at least difunctional chain extender. The invention further relates to polymer mixtures which have particular suitability for producing clingfilms, and to clingfilms which comprise biodegradable polyesters.

Abstract: A process for the preparation of random radical copolymers which comprises a) at least one olefinically unsaturated sulfonic acid of the formula (I), where n is 0 to 10; X is 0 or NR5; R1 is hydrogen or methyl; R2, R3 independently of one another are hydrogen or C1- to C6-alkyl and R5 is hydrogen, alkyl, aryl, alkylaryl, arylalkyl, alkoxyalkyl, aryloxyalkyl, alkoxyaryl, hydroxyalkyl, (di)alkylaminoalkyl, (di)alkylaminoaryl, (di)arylaminoalkyl, alkylarylaminoalkyl or alkylarylaminoaryl, it being possible for the aryl radicals to be monosubstituted or polysubstituted, salts thereof or mixtures of acid and salts and b) at least two structurally different olefinically unsaturated monomers of the formula (II), where Y is O or NR7; R5 is hydrogen or methyl; R6 is alkyl, hydroxyalkyl, (di)alkylaminoalkyl or (di)alkylaminoaryl and R7 is hydrogen, alkyl, aryl, alkylaryl, arylalkyl, alkoxyalkyl, aryloxyalkyl, alkoxyaryl, hydroxyalkyl, (di)alkylaminoalkyl, (di)alkylaminoaryl, (di)arylaminoal

Abstract: The present invention relates to a process for producing films which are resistant to tear propagation, by using biodegradable polyesters obtainable via polycondensation of: i) from 65 to 80 mol %, based on components i to ii, of one or more dicarboxylic acid derivatives or dicarboxylic acids selected from the group consisting of: succinic acid, adipic acid, sebacic acid, azelaic acid, and brassylic acid; ii) from 35 to 20 mol %, based on components i to ii, of a terephthalic acid derivative; iii) from 98 to 102 mol %, based on components i to ii, of a C2-C8-alkylenediol or C2-C6-oxyalkylenediol; iv) from 0.05 to 2% by weight, based on the polymer obtainable from components i to iii, of an at least trifunctional crosslinking agent or of an at least difunctional chain extender. The invention further relates to polymer mixtures which are suitable for producing films which are resistant to tear propagation.

Abstract: Process for producing molded foams from melamine/formaldehyde condensation products by subjecting melamine/formaldehyde precondensates to foaming under reduced pressure and subsequent irradiation.

Abstract: The invention relates to a process for preparing potassium and potassium compounds

Abstract: A process for producing water-absorbing polymer particles, wherein heated water-absorbing polymer particles are remoisturized and cooled in a high-speed mixer.

Abstract: The present invention relates to flame retardant polymer compositions which comprise mixtures of salts of phosphinic acids and 2,2,6,6-tetraalkylpiperidines. The mixtures are especially useful for the manufacture of flame retardant compositions based on thermoplastic polymers.

Abstract: The present invention relates to thermoplastic molding compositions comprising the following components: (A1) at least one polyarylene ether having an average of at most 0.5 phenolic end groups per polymer chain, (A2) optionally at least one polyarylene ether having an average of at least 1.5 phenolic end groups per polymer chain, (B) at least one polyarylene sulfide, (C) at least one hyperbranched polymer selected from hyperbranched polycarbonates and hyperbranched polyesters, (D) optionally at least one functionalized polyarylene ether comprising carboxy groups, (E) optionally at least one fibrous or particulate filler, and (F) optionally further additives and/or processing aids. The present invention further relates to a process for producing the thermoplastic molding compositions of the invention, to the use of these for producing moldings, fibers, foams, or films, and to the resultant moldings, fibers, foams, and films.

Abstract: The present invention relates to thermoplastic molding compositions comprising the following components: (A) at least one polyarylene ether, (B) at least one hyperbranched polymer selected from hyperbranched polycarbonates and hyperbranched polyesters, (C) optionally at least one fibrous or particulate filler, and (D) optionally further additives and/or processing aids. The present invention further relates to a process for producing the thermoplastic molding compositions of the invention, to their use for producing moldings, fibers, foams, films, or membranes, and to the resultant moldings, fibers, foams, films, and membranes.

Abstract: A process for removing residual monomers from water-absorbing polymer particles, wherein the water-absorbing polymer particles are thermally aftertreated in a mixer with rotating mixing tools at a temperature of at least 60° C. in the presence of water vapor.