Abstract: Resin composition comprising a) the reaction product of a1) one or more epoxy compounds having at least 2 epoxy groups, and a2) sorbic acid as component A; b) a solvent containing vinyl groups as component B; characterized in that a bisphenol F diglycidyl ether or an epoxy novolac is used as epoxy compound a1) in component A.

Abstract: The present invention relates to a solvent-free wire enamel composition containing extrudable, polyesterimide-containing binders, prepared from polyols, polycarboxylic acids, imide-forming components, and structural elements which are crosslinkable after extrusion.

Abstract: An improvement of the flow properties of paraffin-containing crude oil, more specifically, a means of favourably influencing the pour point of crude oil and hence improving the flow properties of paraffin-containing crude oil. The crude oil composition is a paraffin-containing crude oil and has an amount of an additive that brings about lowering of the pour point of the crude oil, wherein the additive comprises at least one copolymer composed of at least two comonomers, and wherein all comonomers that make up the copolymer are selected from the groups (a) and (b) of comonomers, and wherein group (a) is comonomers formed from acrylic acid and methacrylic acid, and group (b) is comonomers formed from styrene and a styrene derivative.

Abstract: Resin composition comprising a) the reaction product of a1) one or more epoxy compounds having at least 2 epoxy groups, and a2) sorbic acid as component A; b) a solvent containing vinyl groups as component B; characterized in that a bisphenol F diglycidyl ether or an epoxy novolac is used as epoxy compound a1) in component A.

Abstract: Resin composition comprising a) the reaction product of a1) one or more epoxy compounds having at least 2 epoxy groups, and a2) sorbic acid as component A; b) a solvent containing vinyl groups as component B.

Abstract: A process is proposed for preparing hydroxyaromatics by heterogeneous catalytic reaction of hydroxyaromatics with C1-C4-alkanols in a microreactor (10), comprising the steps of: a) introducing the hydroxyaromatic and at least one compound selected from the group consisting of C1-C4-alkanols as reactants into at least one inlet orifice (22) of the microreactor (10) comprising at least one microreactor unit (18), b) passing the reactants through at least one microreactor unit (18) of the microreactor (10), said unit comprising a multitude of microchannels (28), said microchannels (28) having a lateral extent of less than 1 mm, and a heterogeneous catalyst being incorporated in the microchannels (28) for conversion of the reactants, c) passing the hydroxyaromatics prepared out through at least one outlet orifice (24) of the microreactor (10).

Abstract: The present invention relates to a solvent-free wire enamel composition containing extrudable, polyesterimide-containing binders, prepared from polyols, polycarboxylic acids, imide-forming components, and structural elements which are crosslinkable after extrusion.

Abstract: Resin composition comprising a) the reaction product of a1) one or more epoxy compounds having at least 2 epoxy groups, and a2) sorbic acid as component A; b) a solvent containing vinyl groups as component B.

Abstract: The field of the present invention relates to the stabilisation of nanoparticles in aqueous dispersion and, in particular, the stabilisation of nanoparticles by encapsulating the nanoparticles in a micellular combination. The field of the present invention further relates to a micellular combination of nanoparticles and a method of manufacture of the micellular combination and uses thereof. In a first aspect the present disclosure teaches a micellular combination that allows the stable dispersion of nanoparticles into aqueous environment. The micellular combination comprises at least one nanoparticle in a core of the micellular combination. A plurality of surfactants is co-assembled with a plurality of hydrophobic ligands on the surface of the nanoparticle in such a way that the hydrophilic part of the surfactant forms a hydrophilic shell around the core of the micellular combination.

Abstract: A process is proposed for preparing hydroxyaromatics by heterogeneous catalytic reaction of hydroxyaromatics with C1-C4-alkanols in a microreactor (10), comprising the steps of: a) introducing the hydroxyaromatic and at least one compound selected from the group consisting of C1-C4-alkanols as reactants into at least one inlet orifice (22) of the microreactor (10) comprising at least one microreactor unit (18), b) passing the reactants through at least one microreactor unit (18) of the microreactor (10), said unit comprising a multitude of microchannels (28), said microchannels (28) having a lateral extent of less than 1 mm, and a heterogeneous catalyst being incorporated in the microchannels (28) for conversion of the reactants, c) passing the hydroxyaromatics prepared out through at least one outlet orifice (24) of the microreactor (10).

Abstract: A process for preparing polyvinylpyrrolidones by free-radically initiated polymerization in the presence of an initiator found, which comprises performing the polymerization as a spray or droplet polymerization.

Abstract: The present invention relates to processes for preparing carboxylated latex particles based on the copolymerization of a monoalkenylaromatic monomer (A) and an aliphatic unsaturated carboxylic acid (B), where the copolymerization takes place at a pH in the range from pH >1.5 to pH <4.5. The pH is typically monitored during the copolymerization process and regulated by suitable compensatory titration. The invention likewise relates to the carboxylated latex particles obtainable by one of the processes according to the invention, and to the use of these particles in an immunological test method.

Abstract: Process for producing polymers by spray polymerization wherein the aqueous monomer solution comprises at least one displacer, so that the polymer separates from the aqueous solution during the polymerization; water soluble or water swellable compositions; and also their use for thickening and/or absorption of liquids.

Abstract: Process for producing polymers by spray polymerization wherein the aqueous monomer solution comprises from 0.01% to 0.2% by weight, based on the monomer, of at least one crosslinker, the use of the polymers for thickening liquids and also apparatus for producing polymers by spray polymerization.

Abstract: In the spray condensation process for the preparation of dried resins in powder form from melamine, urea or a mixture thereof and at least one aldehyde, the morphology of the resin particles produced is influenced in a targeted manner with respect to their particle parameters.

Abstract: (Co)polymers preparable by free-radical (co)polymerization of olefinically unsaturated monomers in the presence of at least one thiocarbamate-functional organic compound, processes for preparing (co)polymers by free-radical (co)polymerization of olefinically unsaturated monomers, which involves (co)polymerizing the olefinically unsaturated monomers in the presence of at least one thiocarbamate-functional organic compound, and the use of thiocarbamate-functional organic compounds as regulators in the free-radical (co)polymerization of olefinically unsaturated monomers.

Abstract: Novel polyurethanes containing sulfide groups which comprise at least one group of the general formula I in the polymer main chain and/or at least one group of the general formula II incorporated at the chain end: —X—A—S—B—Y—??(I) —X—A—S—B—YH??(II) in which the variables have the following definitions: S is the sulfur atom; X and Y independently of one another are oxygen atoms, sulfur atoms or groups —NZ where Z is the hydrogen atom or an alkyl radical of 1 to 10 carbon atoms; and A and B independently of one another are divalent organic radicals; novel polymer mixtures based thereon, and the use of the novel polyurethanes and polymer mixtures and dispersions thereof for the preparation of coating materials, adhesives and sealing compounds.

Abstract: A Taylor reactor for conducting material conversions, having an external reactor wall (1) located within which there is a concentrically or eccentrically disposed rotor (2), a reactor floor (3) and a reactor lid (4), which together define the annular reactor volume (5), at least one means (6) for metered addition of reactants, and a means (7) for the discharge of product, wherein during the conversion there is a change in the viscosity ? of the reaction medium and the reactor wall (1) and/or the rotor (2) are or is geometrically designed in such a way that the conditions for Taylor vortex flow are met over essentially the entire reactor length in the reactor volume (5).

Abstract: Aqueous monomer solutions comprising free-radically polymerizable monomers and at least 55% by weight of water are spray polymerized to prepare crosslinked, water-swellable polymers.

Abstract: In the Taylor reactor, in accordance with a first alternative of the invention, the reactor housing and/or the rotor are/is equipped such that the cross section of the reaction volume initially rises from the inlet to the outlet but the rise in cross section decreases in the direction of the outlet at least over part of the length of the rotor. In accordance with a second alternative of the invention, which may also find application in addition to the first, the end face of the rotor is designed in such a way that the reaction volume opens out into the outlet in such a way that it is at least substantially free from deadspaces (FIG. 4).