Abstract: The invention relates to a spreader structure (10) for introducing into a hollow organ, comprising spreader rods (12), which radiate from a first connection section (14) essentially in the longitudinal direction (36) of the spreader structure (10) up to a second connection section (16), are distributed around the periphery of the spreader structure (10) and can be placed against a wall of a hollow organ by means of radial expansion. The aim of the invention is to provide a spreader structure (10), which is versatile and cost-effective to produce. To achieve this, the spreader rods (10) have at least one zone (22) running in the longitudinal direction, which has a reduced flexural strength in comparison to neighboring zones (20, 24). The invention also relates to the use of said spreader structure, to a spreader device and to a method for positioning a spreader structure.

Abstract: The present invention relates to a method and a reactor system for preparing linear alpha-olefins by oligomerization of ethylene in the presence of an organic solvent and an oligomerization catalyst, wherein a product fraction of C10+ alpha-olefins contaminated with aromatic C9+ compounds is separated from a product main stream and transferred into a conversion reactor, where C10+ alpha-olefins and aromatic C9+ components are reacted in the presence of a Friedel-Crafts alkylation catalyst to produce aromatic C19+ compounds.

Abstract: The present invention relates to method for reaction control of an exothermic reaction, comprising the steps: i) carrying out an exothermic reaction in a reactor to produce product, ii) measuring temperature and/or pressure in the reactor, and iii) introducing inert product already produced previously in the exothermic reaction from a storage container into the reactor, if temperature and/or pressure exceed(s) critical value(s). as well as an apparatus for carrying out an exothermic reaction.

Abstract: The present invention relates to a method and a reactor system, for the oligomerization of ethylene, comprising oligomerizing ethylene in a reactor in the presence of a solvent and a catalyst composition to produce a liquid product stream comprising linear alpha-olefins, solvent and catalyst composition, and deactivating and extracting the catalyst composition in said liquid product stream by mixing it with a polar phase in a dynamic mixing device having rotor and stator elements comprising concentric tool rings.

Abstract: The present invention relates to a process for oligomerization/polymerization of ethylene and/or alpha-olefins, comprising the steps of oligomerizing/polymerizing ethylene and/or alpha-olefins to produce a reaction product which contains undesired reaction by-products, separating the reaction by-product from the reaction product as one or more reaction by-product fractions, and subjecting at least one of the reaction by-product fractions to steam cracking to produce a steam cracking product which comprises ethylene, which may be optionally purified and feed to the oligomerization/polymerization of ethylene and/or alpha olefins step.

Abstract: The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of solvent and homogenous catalyst, comprising the steps of: (i) feeding ethylene, solvent and catalyst into an oligomerization reactor, (ii) oligomerizing the ethylene in the reactor, (iii) removing a reactor outlet stream comprising solvent, linear alpha-olefins, ethylene, and catalyst from the reactor via a reactor outlet piping system, (iv) transferring the reactor outlet stream to a catalyst deactivation and removal step, and (v) deactivating and removing the catalyst from the reactor outlet stream, characterized in that at least one organic amine is added into the oligomerization reactor and/or into the reactor outlet piping system.

Abstract: The present invention relates to a catalyst composition comprising: (a) a binuclear chromium(II) complex; (b) a ligand of the general structure (A) R1R2P—N(R3)—P(R4)—N(R5)—H or (B) R1R2P—N(R3)—P(R4)—N(R5)—PR6R7, wherein R1, R2, R3, R4, R5, R6 and R7 are independently selected from halogen, amino, trimethylsilyl, C1-C10-alkyl, aryl and substituted aryl, wherein the PNPN- or PNPNP-unit is optionally part of a ring system; and (c) an activator or co-catalyst, as well as to a process for oligomerization of ethylene.

Abstract: The invention relates to a mirror in a motor vehicle, in particular a make-up lighted or/vanity style mirror. At least one preferably reflective organic light-emitting diode display abuts the periphery of said mirror.

Abstract: The present invention relates to a method for the preparation of linear alpha-olefins by oligomerization of ethylene in a reactor in the presence of a catalyst and solvent, wherein an outlet stream from the reactor comprising the solvent, catalyst and linear alpha-olefins is heated by at least one heating means to a temperature at which all or substantially all of the linear alpha-olefins are dissolved and/or melted in the outlet stream; and a reactor system therefor.

Abstract: The present invention relates to a catalyst composition and a process for di-, tri- and/or tetramerization of ethylene, wherein the catalyst composition comprises a chromium compound, a ligand of the general structure (A) R1R2P—N(R3)—P(R4)—N(R5)—H or (B) R1R2P—N(R3)—P(R4)—N(R5)—PR6R7, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNPNP-unit is member of a ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution and a co-catalyst or activator.

Abstract: The invention relates to a compact reactor that consists of a number of plates that are arranged like stacks and spaced some distance apart, whereby a) The plates are separated by spacers and are sealed off from one another in a gas-tight manner, b) The plates are profiled in the shape of waves, so that flow channels are formed by the wave troughs that are separated from one another by the wave crests (fins), c) The flow channels run parallel to one another and parallel to one side of the plate, d) The flow channels at least partially contain at least one catalyst material that is introduced such that gaseous and/or liquid media can flow through the flow channels, and e) The compact reactor has means (headers) for feeding at least two gaseous and/or liquid media to the flow channels or removing them therefrom. The invention also relates to the use of a compact reactor.

Abstract: Described is the use of polymers with a high refractive index for ophthalmic products and a process for the production thereof.

Abstract: The present invention relates to a process for oligomerization/polymerization of ethylene and/or alpha-olefins, comprising the steps of oligomerizing/polymerizing ethylene and/or alpha-olefins to produce a reaction product which contains undesired reaction by-products, separating the reaction by-product from the reaction product as one or more reaction by-product fractions, and subjecting at least one of the reaction by-product fractions to steam cracking to produce a steam cracking product which comprises ethylene, which may be optionally purified and feed to the oligomerization/polymerization of ethylene and/or alpha olefins step.

Abstract: The invention relates to a dental device, in particular a dental mixing device, with a housing, and with a frame that supports at least one motor and a mixing arm and is mounted on at least two bearings, preferably at least three bearings, in particular four bearings, inside a housing, each of these bearings being clamped between upper and lower elastic, pretensioned damping elements (32, 34). The damping elements are supported respectively on a first, upwardly directed abutment surface (58) and on a second, downwardly directed abutment surface (50) of the housing, in particular on a stand foot (52).

Abstract: A roof unit having an outer skin, an inward facing ceiling having a ceiling frame, and a basic structure. The ceiling and the outer skin along with the basic structure have joining configurations that mate together at corresponding locations. The ceiling has at least one fitting from a group of fittings including fittings for a ceiling cover, interior cladding, cushioning against impact, sun shields, an interior rear view mirror, interior lighting, wiring, operating and display elements, sliding, raising, folding, lamellar and glass roofs, and their frame parts and drive elements, and roof hand grips.

Abstract: The invention relates to a mirror in a motor vehicle, in particular a make-up lighted or/vanity style mirror. At least one preferably reflective organic light-emitting diode display abuts the periphery of said mirror.

Abstract: The vehicle headliner has integrated head-side airbag modules. Each module has an elongated accommodation housing (12) for a folded airbag (14). The accommodation housings (12) are arranged along the side edges of the headliner (10). At the side of the headliner (10), the accommodation housing (12) is connected to a support structure (18) that has support ribs and that is joined to the headliner by means of gluing. On the opposite side, facing the vehicle body, the accommodation housing (12) is covered by a further support structure (20) having numerous support ribs.

Abstract: A connector includes two housings, a chamber block, and a seal. Passages arranged in a configuration extend through first housing top wall into first housing. Chamber block has chambers arranged in the configuration. Seal has openings arranged in the configuration and attaches to chamber block such that openings align with chambers. First housing houses chamber block and seal such that first housing top wall and chamber block sandwich seal and passages, openings, and chambers align. Second housing has plugs arranged in the configuration. Housings attach together such that first housing side wall and seal sandwich second housing side wall whereby seal seals housings and such that plugs extend into respective sockets in chambers. Electrical leads extend through the aligned passages, openings, and chambers and contact sockets to electrical connect with plugs. The seal simultaneously seals first housing in a region in which leads enter first housing and seals between housings.

Abstract: A roof unit having an outer skin, an inward facing ceiling, whereby the outer skin and the ceiling are combined to form a unit ready for installation, a base structure having longitudinal frames. The ceiling and the outer skin along with the basic structure have joining configurations that mate the ceiling and the outer skin to the base structure at mutual places for joining. The ceiling has a sandwich structure including a middle layer of foam, at least one side of the middle layer being provided with one of a fiber mat and a glass fiber fleece and at least one of a plastic film, a cover film, a decorative overlay and a functional overlay.