Abstract: Composite of layers which comprises a dielectric layer and a layer which comprises pyrogenic zinc oxide and is bonded to the dielectric layer. Process for producing the composite of layers, in which the pyrogenic zinc oxide is applied to the dielectric layer in the form of a dispersion in which the zinc oxide particles are present with a mean aggregate diameter of less than 200 nm, and the zinc oxide layer is dried and then treated at temperatures of less than 200° C. Process for producing the composite of layers, in which the pyrogenic zinc oxide is applied to a substrate layer or a composite of substrate layers in the form of a dispersion in which the zinc oxide particles are present with a mean aggregate diameter of less than 200 nm to form a zinc oxide layer, and then the zinc oxide layer and the substrate layer are treated at temperatures of less than 200° C., and then a dielectric layer is applied to the zinc oxide layer. Field-effect transistor which has the composite of layers.

Abstract: The invention relates to a process for producing coated carbon particles, which comprises coating electrically conductive carbon particles with elemental doped or undoped silicon by chemical vapor deposition from at least one gaseous silane in an oxygen-free gas atmosphere in a reaction space, with the electrically conductive carbon particles being in continual motion during the vapor deposition, and also correspondingly coated carbon particles and their use in anode materials for lithium ion batteries.

Abstract: The invention provides a method to produce primary diamines by catalytic conversion of diols having a linear main chain of from 4 to 31 carbon atoms into the corresponding diamines. The reaction is conducted in a liquid or supercritical phase and is catalyzed by a homogeneous ruthenium-containing complex. The primary diamines obtained may be suitable for polyamide syntheses.

Abstract: The invention provides a process for preparing linear alpha,omega-dicarboxylic diesters by reacting a triglyceride containing fatty acid residues having monounsaturated or polyunsaturated carbon chains with carbon monoxide, an acid and an OH-group donor in one reaction step in the presence of a catalyst.

Abstract: The invention provides a process for preparing linear alpha,omega-dicarboxylic diesters by reacting a triglyceride containing fatty acid residues having monounsaturated or polyunsaturated carbon chains with carbon monoxide, an acid and an OH-group donor in one reaction step in the presence of a catalyst.

Abstract: The invention provides a method to produce primary diamines by catalytic conversion of diols having a linear main chain of from 4 to 31 carbon atoms into the corresponding diamines. The reaction is conducted in a liquid or supercritical phase and is catalyzed by a homogeneous ruthenium-containing complex. The primary diamines obtained may be suitable for polyamide syntheses.

Abstract: The invention relates to an electrode material for a lithium ion battery which is distinguished by the fact that the electrode material comprises 5-85% by weight of nanoscale silicon particles which have a BET surface area of from 5 to 700 m2/g and a mean primary particle diameter of from 5 to 200 nm, 0-10% by weight of conductive carbon black, 5-80% by weight of graphite having a mean particle diameter of from 1 ?m to 100 ?m and 5-25% by weight of a binder, the proportions of the components summing to not more than 100% by weight, and to the use of the electrode material according to the invention for the production of lithium ion batteries, and to a lithium ion battery having a negative electrode which comprises the electrode material according to the invention.

Abstract: An aggregated crystalline silicon powder with a BET surface area of 20 to 150 m2/g is provided. The aggregated silicon powder may be doped with phosphorus, arsenic, antimony, bismuth, boron, aluminium, gallium, indium, thallium, europium, erbium, cerium, praseodymium, neodymium, samarium, gadolinium, terbium, dysprosium, holmium, thulium, lutetium, lithium, ytterbium, germanium, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver, gold, or zinc.

Abstract: An aggregated crystalline silicon powder with a BET surface area of 20 to 150 m2/g is provided. The aggregated crystalline silicon may be doped with a doping component and can be used to produce electronic components.

Abstract: An aggregated crystalline silicon powder with a BET surface area of 20 to 150 m2/g is provided. The aggregated crystalline silicon may be doped with a doping component and can be used to produce electronic components.

Abstract: Aggregated crystalline silicon powder with a BET surface area of 20 to 150 m2/g. It is prepared by subjecting at least one vaporous or gaseous silane and optionally at least one vaporous or gaseous doping material, an inert gas and hydrogen to heat in a hot wall reactor, cooling the reaction mixture or allowing the reaction mixture to cool and separating the product from gaseous substances in the form of a powder, wherein the proportion of silane is between 0.1 and 90 wt. %, with respect to the sum of silane, doping material, hydrogen and inert gases, and wherein the proportion of hydrogen, with respect to the sum of hydrogen, silane, inert gas and doping material, is in the range 1 mol. % to 96 mol. %. It can be used to produce electronic components.

Abstract: An aggregated crystalline silicon powder with a BET surface area of 20 to 150 m2/g is provided. The aggregated silicon powder may be doped with phosphorus, arsenic, antimony, bismuth, boron, aluminium, gallium, indium, thallium, europium, erbium, cerium, praseodymium, neodymium, samarium, gadolinium, terbium, dysprosium, holmium, thulium, lutetium, lithium, ytterbium, germanium, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver, gold, or zinc.

Abstract: Composite of layers which comprises a dielectric layer and a layer which comprises pyrogenic zinc oxide and is bonded to the dielectric layer. Process for producing the composite of layers, in which the pyrogenic zinc oxide is applied to the dielectric layer in the form of a dispersion in which the zinc oxide particles are present with a mean aggregate diameter of less than 200 nm, and the zinc oxide layer is dried and then treated at temperatures of less than 200° C. Process for producing the composite of layers, in which the pyrogenic zinc oxide is applied to a substrate layer or a composite of substrate layers in the form of a dispersion in which the zinc oxide particles are present with a mean aggregate diameter of less than 200 nm to form a zinc oxide layer, and then the zinc oxide layer and the substrate layer are treated at temperatures of less than 200° C., and then a dielectric layer is applied to the zinc oxide layer. Field-effect transistor which has the composite of layers.

Abstract: The invention relates to a polymer composition which comprises at least one at least semicrystalline polymer having no ionic groups and comprises at least one compound with plasticizing properties, and which comprises having 0.1 to 30% by weight of ionic liquid as plasticizer, and also to the use of this polymer composition, and a process for its preparation.

Abstract: The invention relates to a process for producing coated carbon particles, which comprises coating electrically conductive carbon particles with elemental doped or undoped silicon by chemical vapor deposition from at least one gaseous silane in an oxygen-free gas atmosphere in a reaction space, with the electrically conductive carbon particles being in continual motion during the vapor deposition, and also correspondingly coated carbon particles and their use in anode materials for lithium ion batteries.

Abstract: The invention relates to an electrode material for a lithium ion battery which is distinguished by the fact that the electrode material comprises 5-85% by weight of nanoscale silicon particles which have a BET surface area of from 5 to 700 m2/g and a mean primary particle diameter of from 5 to 200 nm, 0-10% by weight of conductive carbon black, 5-80% by weight of graphite having a mean particle diameter of from 1 ?m to 100 ?m and 5-25% by weight of a binder, the proportions of the components summing to not more than 100% by weight, and to the use of the electrode material according to the invention for the production of lithium ion batteries, and to a lithium ion battery having a negative electrode which comprises the electrode material according to the invention.

Abstract: Aggregated, crystalline silicon powder with a BET surface of more than 50 m2/g. The powder is produced by continuously feeding at least one vaporous or gaseous silane and optionally at least one vaporous or gaseous doping substance and an inert gas into a reactor and mixing the components there, wherein the proportion of silane is between 0.1 and 90 wt. % referred to the sum total of silane, doping substance and inert gas, the mixture is caused to react by input of energy, wherein a plasma is produced by the input of energy by means of electromagnetic radiation in the microwave range at a pressure of 10 to 1100 mbar, the reaction mixture is allowed to cool and the reaction product is separated in the form of a powder from gaseous substances. The powder may be used for the production of electronic components.

Abstract: Aggregated crystalline silicon powder with a BET surface area of 20 to 150 m2/g. It is prepared by subjecting at least one vaporous or gaseous silane and optionally at least one vaporous or gaseous doping material, an inert gas and hydrogen to heat in a hot wall reactor, cooling the reaction mixture or allowing the reaction mixture to cool and separating the product from gaseous substances in the form of a powder, wherein the proportion of silane is between 0.1 and 90 wt.%, with respect to the sum of silane, doping material, hydrogen and inert gases, and wherein the proportion of hydrogen, with respect to the sum of hydrogen, silane, inert gas and doping material, is in the range 1 mol. % to 96 mol. %. It can be used to produce electronic components.

Abstract: The invention relates to a fragrance composition which has, as fixative, at least one ionic liquid, and to the preparation and use thereof. The fragrance compositions according to the invention are advantageous since the ionic liquid, being a polar solvent which has as it were no vapor pressure, can delay the evaporation of the base scent components in a targeted manner. The large choice of ionic liquids allows the rate of evaporation of the scent components to be adjusted precisely. Since the polarity of the ionic liquids can be varied by means of the structure of the cations and/or anions within wide ranges, the ionic liquids used as fixative can be matched precisely to the chemicophysical and/or olfactory requirements of the scent component.

Abstract: The invention relates to a polymer composition which comprises at least one at least semicrystalline polymer having no ionic groups and comprises at least one compound with plasticizing properties, and which comprises having 0.1 to 30% by weight of ionic liquid as plasticizer, and also to the use of this polymer composition, and a process for its preparation.