Abstract: Aqueous polymeric dispersions comprising a mixture of: (a) a component selected from the group consisting of polyvinylacetates, polyvinylacetate copolymers, and combinations thereof; and (b) SiO2 particles having an average particle diameter of 1 to 400 nm; their use as adhesives and coatings; processes for preparing such dispersions; and substrates coated and/or adhered therewith.

Abstract: The present invention provides a new process for separating zirconium and hafnium compounds, in particular to remove traces of zirconium compounds from hafnium compounds, using fractional crystallisation, as well as hafnium compounds obtainable in accordance with this process.

Abstract: The invention relates to a novel process for the production of linear organic thiophene-phenylene oligomers represented by the following general formula (I), The process involves reacting (e.g., by means of a Suzuki coupling reaction) a compound represented by the following general formula (II), with a formula represented by the following general formula (III), The reaction may be conducted optionally in the presence of catalysts, optionally in a solution and/or optionally at elevated temperature. The linear organic thiophene-phenylene oligomers of the present invention may be used to form semi-conductive coatings.

Abstract: The invention relates to asymmetrical linear organic oligomers represented by the following formula (I), X—R1ArnR2 ??(I) in which n is from 4 to 10, Ar is for example an optionally substituted 2,5-thienylene group, R1 is for example a C10–C20 alkylene group, R2 is for example a C1–C12 alkyl group, and X is for example a vinyl group or an alkoxysilyl group. Also described is a process for the production of such organic oligomers, and semiconductors in electronic modules that include such organic oligomers.

Abstract: The production of electrically conductive polythiophenes by reaction of 2,5-dihalogen-3,4-ethylene dioxythiophenes with 3,4-ethylene dioxythiophenes in a solvent or liquid phase is provided. These polythiophenes can be used as a plastic or lacquer additive to provide antistatic properties.

Abstract: Disclosed herein is a water-dispersible powder consisting essentially of polymers T comprising recurring thiophene units and at least one further polyanionic polymer P and process for preparing and using the same.

Abstract: Process for preparing specific oxidants which in mixtures with precursors for preparing conductive polymers display a long processing time during the polymerization; oxidants obtainable by this process; mixtures comprising such specific (retarding) oxidants and the use of said oxidants for preparing solid electrolyte capacitors and conductive layers.

Abstract: A process for producing dielectric layers with low dielectric constants by thermal treatment of a sol-gel product of a multifunctional carbosilane, corresponding layers, and their use in the production of electronic components, are described.

Abstract: The invention relates to compounds having a core-shell structure, to a process for preparing them and to their use as semiconductors in electronic components.

Abstract: Polythiophenes which are soluble or dispersible in anhydrous or low-water-content solvents can be prepared if they are prepared in anhydrous or low-water-content solvents and a phase-transfer catalyst is added during the reaction.

Abstract: A process for the preparation of dispersions or solutions comprising polythiophene+An? ion complexes in anhydrous or low-water-content organic solvents, characterized in that at least one water-miscible organic solvent or a water-miscible solvent mixture is added to an aqueous dispersion or solution comprising optionally substituted polythiophenes, all or some of the water is removed, and the resultant dispersion or solution is, if desired, diluted with organic solvents.

Abstract: A process for the preparation of dispersions or solutions comprising polythiophene+An? ion complexes in anhydrous or low-water-content organic solvents, characterized in that at least one water-miscible organic solvent or a water-miscible solvent mixture is added to an aqueous dispersion or solution comprising optionally substituted polythiophenes, all or some of the water is removed, and the resultant dispersion or solution is, if desired, diluted with organic solvents.

Abstract: The invention relates to compounds containing optionally substituted 3,4-methylenedioxythiophene units (thieno[3,4-d]-1,3-dioxole units), the production thereof and their use as organic semi-conductors.

Abstract: Macromolecular compounds having a core-shell structure are described. Also described is a process for preparing such macromolecular compounds, and their use as semiconductors in electronic structural elements.

Abstract: The invention relates to asymmetrical linear organic oligomers represented by the following formula (I), X—R1—[—Ar—]n—R2 ??(I) in which n is from 4 to 10, Ar is for example an optionally substituted 2,5-thienylene group, R1 is for example a C10-C20 alkylene group, R2 is for example a C1-C12 alkyl group, and X is for example a vinyl group or an alkoxysilyl group. Also described is a process for the production of such organic oligomers, and semiconductors in electronic modules that include such organic oligomers.

Abstract: The invention relates to a novel process for the production of linear organic thiophene-phenylene oligomers represented by the following general formula (I), The process involves reacting (e.g., by means of a Suzuki coupling reaction) a compound represented by the following general formula (II), with a formula represented by the following general formula (III), Y?Ar?mY ??(III) The reaction may be conducted optionally in the presence of catalysts, optionally in a solution and/or optionally at elevated temperature. The linear organic thiophene-phenylene oligomers of the present invention may be used to form semi-conductive coatings.

Abstract: The invention relates to a process for the purification of thiophenes by means of precipitation. The purified thiophenes are liquid at room temperature, have a purity of at least 99.50 wt. %, and are represented by the following general formula (I), wherein R1 and R2 independently of each other are, for example, a linear or branched C1-C20-alkyl group, or together form a fused C1-C20-dioxyalylene ring. The process involves: (I) precipitating the thiophene by cooling a solution of the thiophene and at least one solvent; or (II) precipitating the thiophene by adding the thiophene to a cooled solution of solvent and optionally the thiophene. The solutions are cooled to a temperature below the melting point of the thiophene.

Abstract: The invention relates to stable solutions comprising organic semiconducting compounds, characterized in that they comprise at least one solvent and, as a stabilizer, at least one basic compound, and also to their use for the production of stable semiconducting layers for semiconductor technology.

Abstract: A composition suitable for sizing of glass fibers is disclosed. The composition contains water dispersible, water-soluble or water emulsifiable resin selected from the group consisting of polyepoxide, polyester, polyvinyl acetate, polyacrylate and polyurethane, water, an organofunctional silane, and a nucleating agent. Optional components include emulsifiers, lubricants, wetting and anti-static agents. Glass fibers sized with the composition are suitable for preparing composites having improved mechanical properties.

Abstract: The invention relates to substituted or unsubstituted benzodioxinothiophenes, their preparation and their use for preparing electrically conductive oligomers or polymers, also oligomers or polymers comprising these thiophene derivatives as repeating unit.