Abstract: A process for the preparation of polyetherols, comprising the following steps: a) reaction of at least one starter compound with at least one alkylene oxide and a catalyst to give a crude polyetherol and b) removal of low molecular weight byproducts from the crude polyetherol from step a), wherein the crude polyetherol is treated with a stripping gas in a column having internals.

Abstract: Disclosed is the use of benzylidene malonates of formula (1) wherein R1 is methyl; ethyl; propyl; or n-butyl; if R1 is methyl, then R is tert. butyl; a radical of formula (1a) or a radical of formula (1b) wherein R2 and R3, independently from each other are hydrogen; or methyl; R4 is methyl; ethyl; or n-propyl; R5 and R6 independently from each other are hydrogen; or C1-C3alkyl; if R1 is ethyl; propyl; or n-butyl, then R is isopropyl; for the protection of human and animal hair and skin against UV radiation.

Abstract: The invention relates to copolymers which comprise, in copolymerized form, a1) 30 to 90% by weight of at least one monoethylenically unsaturated C3-C8-carboxylic acid or of an anhydride or salt thereof, a2) 3 to 60% by weight of at least one monomer comprising sulfo groups, a3) 3 to 60% by weight of at least one nonionic monomer of the formula I H2C?C(R1)(CH2)xO[R2—O]0—R3 ??(I) in which R1 is hydrogen or methyl, R2 are identical or different, linear or branched C2-C6-alkylene radicals which may be arranged in blocks or randomly, and R3 is hydrogen or a straight-chain or branched C1-C4-alkyl radical, x is 0, 1 or 2 and o is a natural number from 3 to 50, a4) 0 to 30% by weight of one or more further ethylenically unsaturated monomers which are polymerizable with a1), a2) and a3), where the sum of a1), a2), a3) and a4) adds up to 100% by weight.

Abstract: The present invention pertains to a concentrated aqueous polymer dispersion with an average particle size of less than 1000 nm comprising a polymer carrier, a non-polar organic phenolic antioxidant and a surfactant. The present invention also pertains to a process for the preparation of said concentrated aqueous polymer dispersion, to a polymer powder obtainable from said concentrated aqueous polymer dispersion, to a composition comprising an organic material and said concentrated aqueous polymer dispersion or said polymer powder and to the use of said concentrated aqueous polymer dispersion or said polymer powder as stabiliser for organic material.

Abstract: In a thermoelectric module consisting of p- and n-conducting thermoelectric material pieces which are alternately connected to one another via electrically conductive contacts, the thermoelectric module (19) is thermally conductively connected to a micro heat exchanger (13) which comprises a plurality of continuous channels having a diameter of at most 1 mm, through which a fluid heat exchanger medium can flow.

Abstract: Process for producing polymer mixtures comprising at least one polymer (A) and comprising at least one component (B), comprising the following steps: (a) providing (A) in the form of granules, (b) providing (B) in the form of liquid solution and/or dispersion in a dispersion medium, (c) by means of an atomizer, applying droplets of the solution and/or dispersion provided in step (b) to the granules provided in step (a), (d) drying the granules obtained in step (c), and (e) optionally carrying out one or more shaping steps.

Abstract: Disclosed is the use of a UV filter combination, comprising (a) a first UV filter selected from benzylidene malonates of formula (1), wherein R1 methyl; ethyl; propyl; or n-butyl; if R1 is methyl, then R is tert.

Abstract: The invention relates to a component comprising an insert part and plastics jacketing composed of at least two plastics components, where the insert part is enclosed by a first plastics component A and there is a second plastics component B enclosing the first plastics component A.

Abstract: The present invention relates to the use of a mixture of film-forming polymers and hollow organic particles for coating materials, especially in paints, and to coating materials comprising such blends.

Abstract: The invention relates to a process for preparing multimetal cyanide compounds by reacting the aqueous solution of a metal salt a) with the aqueous solution of a hexacyanometalate compound b), wherein the mixture of the solutions a) and b) flows over the surface of a rotating body A to an outer region of the surface of the rotating body A and is flung off from there.

Abstract: Catalyzed soot filters comprising a wall flow monolith having porous walls, a first washcoat permeating the porous walls and a second washcoat on the porous walls are disclosed. Methods of manufacturing catalyzed soot filters and diesel engine exhaust emission treatment systems are also disclosed.

Abstract: The invention relates to a powder composition comprising particles of a) an alkali metal tungsten bronze, b) tungsten oxide, and c) tungsten metal, a method for the preparation of said powder composition, and to the use of said powder composition in form of a dispersion in a polymer material or article for heat shielding, or to increase the heat-input amount of near infrared radiation in processes selected from laser welding of plastics, NIR curing of coatings, drying of printing inks, fixing of ink toners to a substrate, heating of plastic performs, laser marking of plastics or paper.

Abstract: The invention relates to copolymers which comprise, in copolymerized form, a1) 30 to 90% by weight of at least one monoethylenically unsaturated C3-C8-carboxylic acid or of an anhydride or water-soluble salt thereof, a2) 3 to 60% by weight of at least one monomer comprising sulfo groups, a3) 3 to 60% by weight of at least one nonionic monomer of the formula (I) H2C?C(R1)COO—[R2—O]o—R3 ??(I) ?in which R1 is hydrogen or methyl, R2 are identical or different, linear or branched C2-C6-alkylene radicals which may be arranged in blocks or randomly, and R3 is hydrogen or a straight-chain or branched C1-C4-alkyl radical and o is a natural number from 3 to 50, a4) 0 to 30% by weight of one or more further ethylenically unsaturated monomers which are polymerizable with a1), a2) and a3), where the sum of a1), a2), a3) and a4) adds up to 100% by weight.

Abstract: Diesel oxidation catalysts, catalytic articles, methods of making catalytic articles, emissions treatment systems and methods of treating an exhaust gas stream using the catalytic articles for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC) and carbon monoxide (CO) are described. Specific catalytic articles comprising a substrate with a first washcoat layer comprising greater than or equal to about 2% by weight palladium dispersed on a cerin support and a second washcoat layer comprising a platinum group metal and a refractory metal oxide are described.

Abstract: A method is proposed for characterizing a totality of particles. The method can be used in particular for characterizing microparticular or nanoparticular aerosols. The method comprises the following steps: a) in a classification step, a class of the totality is selected, wherein the particles of the selected class have a prespecified mobility dm; b) in a counting step, a number N of the particles of the selected class is determined; c) in a charge determination step, a charge Q of the particles of the selected class is determined; and d) in an evaluation step, at least one morphological parameter is determined from the charge Q, the number N and the mobility dm, wherein the morphological parameter comprises at least one item of information about an agglomerate state of the particles.

Abstract: Disclosed are scratch resistant polypropylene molded parts comprising a) a polypropylene substrate and incorporated therein a combination of b) an alpha, beta-unsaturated carboxylic reagent functionalized olefin polymer or copolymer, c) a primary or secondary fatty acid amide and d) a nucleating agent selected from the group consisting of sodium benzoate, 2,2?-methylene-bis(4,6-di-tert-butylphenyl)phosphate, zinc glycerolate, calcium salt of 1,2-dicarboxylic acid cyclohexane and sodium salt of 1,2-dicarboxylic acid norbornane. Also disclosed is a method for providing scratch resistance to a polypropylene molded part by incorporating said additives. The polypropylene substrate is for instance polypropylene homopolymer or thermoplastic polyolefin (TPO). Component b) is for instance maleated polypropylene or the reaction product of an alpha-olefin and maleic anhydride. The fatty acid amide is for instance stearyl erucamide or oleyl palmitamide. The molded parts are suitable for automotive parts.

Abstract: A process for preparing (meth)acrylic esters (F) of alcohols (A) having at least one epoxy group, in which at least one alcohol (A) having at least one epoxy group is esterified with (meth)acrylic acid (S) or is transesterified with at least one (meth)acrylic ester (D) in the presence of at least one enzyme, the alcoholic leaving group being stable under the reaction conditions in the case of the transesterification.

Abstract: The present application relates to an improved process for preparing 6-hydroxycaproic esters from the by-product mixtures which are obtained in the oxidation of cyclohexane to cyclohexanol and cyclohexanone with oxygen or oxygen-comprising gas mixtures.

Abstract: In a process for producing water-absorbing polymeric particles which comprises generating droplets comprising monomers, polymerizing the monomers in a heated gas phase surrounding the droplets and flowing the gas through the polymerization reactor, the temperature of the gas leaving the polymerization reactor is closed-loop controlled.

Abstract: The invention relates to a method for purifying mixtures comprising 4,4?-methylenediphenyl diisocyanate, which comprises purifying by distillation a mixture I comprising 4,4?-methylene-diphenyl diisocyanate by means of a column K1, wherein the gaseous stream comprising the mixture I is brought into contact in the column K1 with at least one liquid compound A which has the same or higher boiling point than 4,4?-methylenediphenyl diisocyanate, and wherein the gaseous stream O obtained at the top of the column and comprising 4,4?-methylenediphenyl diisocyanate is cooled in a maximum of 5 seconds to a temperature of 20° C. to 60° C.