Abstract: Disclosed is an assembly for granulating polymer material, having a housing; a gas feed conduit having a rectangular cross-section and leading into the housing; a gas discharge conduit located downstream of the housing and having a rectangular cross-section; a granulating unit disposed in the housing and having a perforated plate feeding into the housing and a scraper, which comminutes the material emerging through openings of the perforated plate. In a plane running parallel to the plane of the perforated plate, the two lateral wall faces of the gas discharge conduit arranged perpendicularly to said plane enclose an angle ?2 with one another, and the two lateral wall faces of the gas feed conduit arranged perpendicularly to said plane or plane of section enclose an angle ?1, the two angles ?1 and ?2 being open towards the housing, and the angle ?1 being larger than the angle ?2.

Abstract: Disclosed is a device for cooling particulate materials or particles, in particular granulates of polymeric materials, having an outer container with an, in particular frustoconical, outer shell surface and an inner container, which is arranged at least in sections in the interior of the outer container, with an, in particular frustoconical, inner shell surface, wherein an intermediate space is formed between the outer shell surface and the inner shell surface, wherein an inlet equipment for introducing a gas flow as well as the particles into the intermediate space is provided in an inlet-side initial region of the device, and wherein an outlet opening for the particles is provided in an outlet-side end region of the device opposite the inlet equipment, wherein the inlet equipment is so arranged and/or designed that the gas flow as well as the particles can be introduced substantially tangentially into the intermediate space.

Abstract: The invention relates to a screw (1) for an extruder or conveyor (20), in particular extruder screw, conveying screw or dosing screw for polymers, having a web (3) running helically around a core (2), wherein the web (3) is formed undercut on its active conveying flank (4) in a conveying direction (F) at least in a section of the screw (1).

Abstract: Disclosed is an arrangement for granulating polymer material, having a housing with a gas supply line, connected opposite the latter to the housing, having a rectangular cross-section, a granulating unit located at least partially in the housing and having a perforated plate of a feed or plasticising unit feeding into the housing, and a scraper which crushes or separates the material emerging through the recesses of the perforated plate, wherein in a plane running parallel to the plane of the perforated plate, the two lateral wall surfaces of the gas discharge line perpendicular to this plane include an angle ?2 with one another, and the two lateral wall surfaces of the gas supply line perpendicular to this plane include an angle ?1, wherein the two angles ?1, ?2 open towards the housing and wherein the angle ?1 is greater than the angle ?2.

Abstract: Disclosed is a device for cooling particulate materials or particles, in particular granulates of polymeric materials, having an outer container with an, in particular frustoconical, outer shell surface and an inner container, which is arranged at least in sections in the interior of the outer container, with an, in particular frustoconical, inner shell surface, wherein an intermediate space is formed between the outer shell surface and the inner shell surface, wherein an inlet equipment for introducing a gas flow as well as the particles into the intermediate space is provided in an inlet-side initial region of the device, and wherein an outlet opening for the particles is provided in an outlet-side end region of the device opposite the inlet equipment, wherein the inlet equipment is so arranged and/or designed that the gas flow as well as the particles can be introduced substantially tangentially into the intermediate space.

Abstract: What is disclosed is a method of processing and/or recycling materials, especially thermoplastic materials, wherein the material is agitated and mixed m a receiving vessel (1), especially a cutting compressor or a preconditioning unit (PCU), and optionally also heated, committed and/or softened, wherein the material in the receiving vessel (1) remains in the form of pieces or particles and unmoltenthroughout, and—wherein the material in piece or particle form being agitated within the receiving vessel is subjected to inline spectroscopic and/or spectrometric analysis and/or measurement wherein die measurements ascertained in tins way are employed to obtain information about the material being analysed in each case, especially quantitative and/or qualitative indices of the respective material.

Abstract: Features for a high performance prosthetic foot are provided in a package suitable for use with Symes and reverse-Symes amputees. The foot has a very low profile despite incorporating ankle-type torsional features complete with biasing. Other optional features are presented by way of a dual-rate padding spring system, that convincingly allow for both walking and running (together with related tasks like jumping) by way of a single prosthetic setup. Additional features may be provided in the padding springs directed toward more natural foot movement and response. The foot may be provided alone, in connection with a prosthetic socket and be bare or encased in order to appear more natural.

Abstract: The invention relates to a new process for the preparation and purification of thermolabile compounds.

Abstract: The invention relates to a new process for the purification, by distillation, of thermolabile compounds wherein a thermolabile compound is introduced into a twin screw extruder which is heated, in at least one zone, to the boiling temperature of the compound. The volatilized compound is drawn off and condensed.