Abstract: The present invention relates to a method for producing a molded body by the selective laser sintering of a sinter powder (SP). The sinter powder (SP) contains at least one polyamide (P) and 5 to 50 wt %, preferably 10 to 50 wt %, of at least one aluminum silicate. The at least one aluminum silicate has a D50 value in the range of 2.5 to 4.5 ?m. The present invention also relates to molded bodies obtainable by means of the method according to the invention.

Abstract: The present invention relates to a polyamide composition (PC) which comprises at least one polyamide (P) and at least one additive (A). The present invention further relates to the use of the polyamide composition (PC) in a selective laser sintering process, in an injection molding process, for producing molded articles and in an extrusion process.

Abstract: The present invention relates to a process for producing a shaped body by selective laser sintering of a sinter powder (SP). The sinter powder (SP) comprises at least one polyimide (P) and in the range from 10% to 50% by weight of at least one aluminosilicate. The at least one aluminosilicate has a D50 in the range from 2.5 to 4.5 ?m. The present invention further relates to shaped bodies obtainable by the process of the invention.

Abstract: Process for producing polyamide powders by precipitation The present invention relates to a process for producing polyamide powders and to the polyamide powders obtainable by this process. The present invention additionally relates to the use of the polyamide powder as sintering powder in selective laser sintering.

Abstract: The present invention relates to a process for producing shaped bodies by selective laser sintering of a sinter powder (SP) comprising a polyamide (P) and 0.1% to 5% by weight of at least one additive (A). The present invention also relates to shaped bodies comprising polyamide (P) and 0.1% to 5% by weight of at least one additive (A). The present invention further relates to the production of sinter powders (SP) comprising polyamide (P) and 0.1% to 5% by weight of at least one additive (A).

Abstract: The invention relates to a process for preparing a polyamide dispersion in polyol, the polyamide dispersion in polyol thus obtained, the use of a polyether amine in the preparation of the polyamide dispersion in polyol, the use of the polyamide dispersion in polyol for preparing a polyurethane, a respective process and the polyurethane.

Abstract: The present invention relates to a polyamide composition (PC) which comprises at least one polyamide (P) and at least one additive (A). The present invention further relates to the use of the polyamide composition (PC) in a selective laser sintering process, in an injection molding process, for producing molded articles and in an extrusion process.

Abstract: The invention relates to a method for producing polyamides by means of a spray nozzle arrangement for the collision of spray jets, comprising at least one spray nozzle forming a first spray jet having a first spray jet cross-sectional surface and a first spray jet longitudinal extension axis, and comprising a second spray jet forming a second spray jet having a second spray jet cross-sectional surface and a second spray jet longitudinal extension axis, wherein the first and second spray jets have a spray direction that is facing the gravitational field, and are arranged opposite one another such that in a spray direction facing the gravitational field, the formed spray jets collide in a collision area.

Abstract: Styrene beads, wherein the styrene polymer beads comprise from 0.5 to 5% by weight of one or more high-temperature peroxides, where the high-temperature peroxides have a half-life time of 1 hour in the range from 110 to 160° C., measured in cumene.

Abstract: a) Production of prepolymer beads through a first suspension polymerization reaction using an aqueous suspension comprising styrene monomers and comprising particulate additives, b) isolation of the prepolymer beads, c) optional division of the prepolymer beads into fractions of different particle size and selection of one or more fractions for subsequent stages, d) production of an aqueous suspension of the prepolymer beads and conduct of a second suspension polymerization reaction in the presence of blowing agent and with addition of further monomers.

Abstract: A process for producing expandable styrene polymers via polymerization of at least one vinylaromatic monomer in aqueous suspension in the presence of at least one halogenated polymer as flame retardant, graphite, and blowing agent, which comprises the presence, in the aqueous suspension at the start of the polymerization reaction, of from 1 to 30% by weight of at least one styrene polymer, based on the entirety of monomers and styrene polymer, and likewise the presence of at least one halogenated polymer as flame retardant in the styrene polymer used at the start of the polymerization reaction.

Abstract: The present invention relates to a process for producing metal oxide nanofibers using a sol-gel precursor. The nanofibers produced by the process according to the invention are notable for an increased metal oxide content compared to the prior art.

Abstract: The invention relates to a flame retardant comprising a) at least one sulfur compound of the formula (I) b) at least one halogen-free organophosphorus compound with phosphorus content in the range from 0.5 to 40% by weight, based on the phosphorus compound.

Abstract: A method of manufacturing vacuum plasma treated workpieces includes the steps of introducing at least one workpiece to be treated into a vacuum chamber; treating the workpiece in the vacuum chamber, thereby establishing a plasma discharge in the vacuum chamber by a supply signal with maximum energy at a first frequency which is at least in the Hf frequency range; removing the workpiece treated from the vacuum chamber; performing a cleaning inside the vacuum chamber, thereby establishing the plasma discharge by a supply signal with maximum energy at a second frequency higher than the Hf frequency; and repeating these steps at least one time.

Abstract: A vacuum transport chamber has a transport robot arrangement. A processing arrangement has at least one processing station communicating by at least one workpiece pass-through opening with the vacuum transport chamber. A loadlock arrangement communicates by at least one workpiece pass-through opening with an atmosphere outside the vacuum transport chamber and the processing arrangement. One single loadlock and processing tower is formed by the processing arrangement and the loadlock arrangement being arranged vertically on upon the other.

Abstract: A vacuum transport chamber has a transport robot arrangement. A processing arrangement has at least one processing station communicating by at least one workpiece pass-through opening with the vacuum transport chamber. A loadlock arrangement communicates by at least one workpiece pass-through opening with an atmosphere outside the vacuum transport chamber and the processing arrangement. One single loadlock and processing tower is formed by the processing arrangement and the loadlock arrangement being arranged vertically on upon the other.

Abstract: A method of manufacturing vacuum plasma treated workpieces includes the steps of introducing at least one workpiece to be treated into a vacuum chamber; treating the workpiece in the vacuum chamber, thereby establishing a plasma discharge in the vacuum chamber by a supply signal with maximum energy at a first frequency which is at least in the Hf frequency range; removing the workpiece treated from the vacuum chamber; performing a cleaning inside the vacuum chamber, thereby establishing the plasma discharge by a supply signal with maximum energy at a second frequency higher than the Hf frequency; and repeating these steps at least one time. A system for vacuum plasma treating workpieces includes an evacuatable vacuum recipient. A gas inlet arrangement in the vacuum recipient is connectable to a first gas supply and to a second gas supply. A plasma generating arrangement in the recipient has an electric input to an electrode.

Abstract: A vacuum transport chamber has a transport robot arrangement. A processing arrangement has at least one processing station communicating by at least one workpiece pass-through opening with the vacuum transport chamber. A loadlock arrangement communicates by at least one workpiece pass-through opening with an atmosphere outside the vacuum transport chamber and the processing arrangement. One single loadlock and processing tower is formed by the processing arrangement and the loadlock arrangement being arranged vertically on upon the other.