Abstract: A toy comprises a resiliently deformable member, a first contactor defining a first contacting surface, and a second contactor defining a second contacting surface. At least one of the first and second contactors defines a concave surface. The resiliently deformable member supports the first and second contactors for movement along a main axis between an engaged configuration in which the first contacting surface is contact with the second contacting surface and a disengaged configuration in which the first contacting surface is disengaged from the second contacting surface. The resiliently deformable member biases the first and second contactors in opposite directions along the main axis. Application of force to displace the first and second contactors along the main axis creates a sound when the first and second contactors are disengaged from each other.

Abstract: The invention relates to a device (01) for additively manufacturing an, in particular rotationally symmetric, component (02), said device (01) having a material application unit (03) which is movable along at least two axes and which has an extruder (04) and a nozzle (05) for applying a material strand (06), a rotary head (07) having a compressor (08) for compressing a material strand (06) and having a heating device (09) for heating at least one material application area (10) being disposed on the material application unit (03), the rotary head (07) being rotatable around the nozzle (05), and a control device (11) being comprised which is configured to control at least the rotary head (07) and the compressor (08) and the heating device (09).

Abstract: A plastification and injection unit in injection-molding machines for processing of polymer materials, for example rubber, has a plastification screw that is disposed so as to rotate in a screw cylinder, which simultaneously represents the injection piston. The screw cylinder is disposed in an injection cylinder, in an axially displaceable manner. The injection cylinder can be connected with the sprue channel of an injection-molding die by way of a nozzle, and the injection piston has a back-flow barrier. The screw is axially displaceable in the screw cylinder by means of a separate drive. The screw tip projects out of the screw cylinder and has a closure body having a sealing surface for contact with the face surface of the screw cylinder.

Abstract: A plastification and injection unit in injection-molding machines for processing of polymer materials, for example rubber, has a plastification screw that is disposed so as to rotate in a screw cylinder, which simultaneously represents the injection piston. The screw cylinder is disposed in an injection cylinder, in an axially displaceable manner. The injection cylinder can be connected with the sprue channel of an injection-molding die by way of a nozzle, and the injection piston has a back-flow barrier. The screw is axially displaceable in the screw cylinder by means of a separate drive. The screw tip projects out of the screw cylinder and has a closure body having a sealing surface for contact with the face surface of the screw cylinder.

Abstract: The invention relates to a method for the production of a pipe section (2), for insertion in a damaged pipeline or channel after the relining process, comprising an essentially cylindrical pipe section (4), with a collar end-piece (10) and an end (16), which may be introduced in the collar end-piece of an adjacent, corresponding pipe section. The invention is characterised in that the essentially cylindrical pipe section (4) is produced by winding a flat material (32) around a core (34) and formed by seam- or butt-welding or similar, or for a non-circular tube profile produced by means of shaping and, optionally, subsequent sectioning. The collar end-piece (10) is produced by partial sliding of a suitable pre-formed separate collar ring (8) onto one end (6) of the essentially cylindrical pipe section (4) and subsequent fixing to the above by means of fillet or socket welding.

Abstract: Biodegradable polyesteramides as defined in the specification are obtained by reacting a mixture consisting essentially of a1) a mixture consisting essentially of 35 to 95 mol % of adipic acid or ester-forming derivatives thereof, 5 to 65 mol % of terephthalic acid or ester-forming derivatives thereof, and 0 to 5 mol % of a compound containing sulfonate groups, a2) a mixture consisting essentially of 95.5 to 0.5 mol % of a dihydroxy compound, 0.5 to 99.5 mol % of an amino-C2-C12-alkanol or an amino-C5-C10-cycloalkanol, 0 to 50 mol % of a diamino-C1-C8-alkane, and 0 to 50 mol % of a 2,2′-bisoxazoline of the formula I  wherein R1 is as set forth in the specification, and a3) 0 to 5 mol %, based on a1), of a compound D as set forth in the specification; and other biodegradable polymers and thermoplastic molding compositions, their manufacture and their use for producing biodegradable moldings, adhesives, foams, and coatings.

Abstract: Compact, transparent polyisocyanate polyaddition products are produced in a process by reacting (a) isocyanates with (b) compounds reactive to isocyanates, if desired in the presence of (c) catalysts and (d) auxiliaries and/or additives, which comprises using as (b) compounds reactive to isocyanates a mixture (i) which has an average functionality of >3 and an average hydroxyl number of from 300 to 950 mg KOH/g.

Abstract: Nylon moldings which may or may not be cellular and have improved performance characteristics are obtained by activated alkaline polymerization of caprolactam in the presence of an amorphous or partially crystalline polycondensate which has a solubility of not less than 5% by weight in caprolactam at 120.degree. C.

Abstract: The invention is a process for the preparation of elastic polyurethane flexible foams having densities from approximately 25 to 60 kg/m.sup.3, and producing molded articles in closed molds at temperatures from 25.degree. to 80.degree. C., comprising reacting(A) an organic polyisocyanate prepolymer having an isocyanate content from 6 to 20 percent by weight prepared by reacting a toluene diisocyanate and/or a diphenylmethane diisocyanate with a di- to tetrafunctional polyether polyol having a hydroxyl number from 20 to 50 and oxyethylene terminal group content of at least 10 to 30 percent by weight(B) a mixture of compounds containing reactive hydrogen atoms, comprising a mixture of(a) from 55 to 89.5 parts by weight of at least one di- to tetrafunctional polyether polyol having a hydroxyl number of from 20 to 80 and less than 10 percent by weight terminal oxyethylene groups,(b) from 0.

Abstract: Sheet-like reinforced materials consisting ofA. a core layer comprising a sheet-like textile structure, preferably a glass fiber mat,B. a plastic matrix composed of a nylon which has been polymerized under alkaline conditions and penetrates both the core layer and the surface layer of layers,are produced batchwise by the RIM method or continuously on a double-belt press by impregnating the sheet-line textile structure and the foam sheets with a lactam melt and polymerizing the latter. The reinforced material can be used for the production of finished articles having a satisfactory surface, for example for the automotive or aircraft industry.