Abstract: The invention relates to an additive manufacturing process (3D printing) using particles having a meltable polymer. The meltable polymer comprises a thermoplastic polyurethane polymer which has a flowing temperature (intersection of E? and E? in the DMA) of ?80° C. to <180° C. and a Shore A hardness according to DIN ISO 7619-1 of ?50 Shore A and <85 Shore A and which, at a temperature T, has a melt volume rate (melt volume rate (MVR)) according to ISO 1133 of ?5 to <15 cm3/10 min. The invention also relates to an item which can be obtained by means of the method.

Abstract: The invention relates to an additive manufacturing process (3D printing) using particles having a meltable polymer. The meltable polymer comprises a thermoplastic polyurethane polymer which has a melting range (DSC, Differential Scanning calorimetry; second heating at heating rate 5 K/min) of 160 to 270° C. and a Shore D hardness according to DIN ISO 7619-1 of 50 or more and which, at a temperature T, has a melt volume rate (melt volume rate (MVR)) according to ISO 1133 of 5 to 15 cm/10 min and a change of the MVR, when this temperature T increases by 20° C., of greater than or equal to 90 cm3/10 min. The invention also relates to an item which can be obtained by means of the method.

Abstract: The present invention relates to polyester-based hard thermoplastic polyurethane systems which are impact-resistant at low temperatures, and to the production and use thereof.

Abstract: The present invention relates to a method for producing an object, comprising the step of producing the object according to an additive production process from a construction material, wherein the construction material comprises a mixture of a plurality of powdery thermoplastic materials which are different from one another due to at least one mechanical property and at least one thermoplastic material is a thermoplastic polyurethane material. The invention also relates to an object obtained according to said method.

Abstract: A method is provided for electric low-energy operation of motor vehicle functions during the operation of a motor vehicle equipped with an information display. The method deactivates the information display of the motor vehicle; degrades a functionality of at least one vehicle component that uses the information display to visually represent specific information of the vehicle component; and deactivates a graphics processing unit of the motor vehicle as an energy-saving measure. The graphics processing unit is configured to prepare the specific information of the vehicle component such that this information can be visually represented on the information display. The functionality of the vehicle component is degraded such that the vehicle component continues to determine its associated specific information in accordance with the function and keep the information ready in a prepared manner for graphical processing.

Abstract: A method for producing an object with layers of different materials in an additive manufacturing process comprises the following steps: I) providing a construction material heated at least in part to a temperature above its glass transition temperature on a substrate, so that a layer of the construction material is obtained which corresponds to a first selected cross section of the object; II) providing a construction material heated at least in part to a temperature above its glass transition temperature on a previously provided layer of the construction material, so that another layer of the construction material is obtained which corresponds to another selected cross section of the object and which is connected to the previously provided layer; repeating step II) until the object is formed.

Abstract: It is a feature of a porous body comprising a three-dimensional network of node points joined to one another by struts, and a void volume present between the struts, that the struts have an average length of ?200 ?m to ?50 mm, the struts have an average thickness of ?100 ?m to ?5 mm, and that the porous body has a compression hardness (40% compression, DIN EN ISO 3386-1: 2010-09) in at least one spatial direction of ?10 to ?100 kPa. The porous body according to the invention combines the advantages of a conventional mattress or cushion with ventilatability which results from its porous structure and is not achievable in conventional foams. The invention further relates to a method of producing such a porous body and to an apparatus comprising said body for supporting and/or bearing a person.

Abstract: The invention relates to a method for producing a visco-elastic damping element comprising at least one visco-elastic spring element, characterized in that the visco-elastic spring element is structured from at least one visco-elastic material having a tan ? of at least 0.5, determined according to DIN 53535: 1982-03, and produced by means of a 3D printing method. The invention further relates to a visco-elastic damping element, which is produced or can be produced according to said method, and to a solid body comprising or consisting of a plurality of damping elements.

Abstract: It is a feature of a porous body (10, 20) comprising a three-dimensional network of node points (200) joined to one another by struts (100), and a void volume (300) present between the struts (100), that the struts (100) have an average length of ?200 to ?50 mm, the struts (100) have an average thickness of ?100 ?m to ?5 mm, and that the porous body has a compression hardness (40% compression, DIN EN ISO 3386-1: 2010-09) in at least one spatial direction of ?10 to ?100 kPa. The porous body according to the invention combines the advantages of a conventional mattress or cushion with ventilatability which results from its porous structure and is not achievable in conventional foams. The invention further relates to a method of producing such a porous body (10, 20) and to an apparatus comprising said body (10, 20) for supporting and/or bearing a person.

Abstract: A process for manufacturing an article comprises the steps of: I) applying a filament of an at least partially fused construction material to a support so as to obtain a layer of the construction material which corresponds to a first selected cross-section of the article; II) applying a filament of the at least partially fused construction material to a previously applied layer of the construction material so as to obtain a further layer of the construction material which corresponds to a further selected cross-section of the article and which is bonded to the previously applied layer; and III) repeating step II) until the article is formed. At least steps II) and III) are carried out in a chamber and the construction material comprises a fusible polymer. The fusible polymer has a fusion range (DSC, differential scanning calorimetry; 2nd heating at a heating rate of 5 K/min.) of ?20° C. to ?100° C.

Abstract: A process for manufacturing an article comprises the steps of: applying a layer that consists of particles to a target area; allowing, in a chamber, energy to act on a selected portion of the layer, according to a cross-section of the article, so that the particles in the selected portion are bonded, and repeating the steps of applying and allowing energy to act for a plurality of layers so that the bonded portions of the adjacent layers are bonded to form the article, at least part of the particles comprising a fusible polymer. The fusible polymer has a fusion range (DSC, differential scanning calorimetry; 2nd heating at a heating rate of 5 K/min.) of ?20 ° C. to ?100 ° C. The fusible polymer further has a complex viscosity \?*\ (determined by viscosity measurement in the melt using a plate-plate oscillating viscometer according to ISO 6721-10 at 100° C. and a shear rate of 1/s) of ?10 Pas to ?1000000 Pas. Finally, the temperature inside the chamber is ?50° C.

Abstract: It is a feature of a porous body comprising a three-dimensional network of node points joined to one another by struts, and a void volume present between the struts, that the struts have an average length of ?200 ?m to ?50 mm, the struts have an average thickness of ?100 ?m to ?5 mm, and that the porous body has a compression hardness (40% compression, DIN EN ISO 3386-1: 2010-09) in at least one spatial direction of ?10 to ?100 kPa. The porous body according to the invention combines the advantages of a conventional mattress or cushion with ventilatability which results from its porous structure and is not achievable in conventional foams. The invention further relates to a method of producing such a porous body and to an apparatus comprising said body for supporting and/or bearing a person.

Abstract: It is a feature of a use of an elastic polymer for production of a porous body (in an additive manufacturing method that the porous body comprises a three-dimensional network of node points joined to one another by struts, and a void volume present between the struts, where the struts have an average length of ?200 ?m to ?50 mm and the struts (100) have an average thickness of ?100 ?m to ?5 mm. The polymer here is an elastomer selected from the following group: thermoset polyurethane elastomers (PUR), thermoplastic copolyamides (TPA), thermoplastic copolyesters (TPC), thermoplastic olefin-based elastomers (TPO), styrene block copolymers (TPS), thermoplastic urethane-based elastomers (TPU), crosslinked thermoplastic olefin-based elastomers (TPV), thermoplastic polyvinyl chloride-based elastomers (PVC), thermoplastic silicone-based elastomers and a combination of at least two of these elastomers.

Abstract: The present invention relates to the use of thermoplastic polyurethane powders in powder-based additive manufacturing methods for the production of elastic articles.

Abstract: An acoustofluidic system comprises a substrate (10) having an essentially rectangular recess with side walls (33), wherein the recess provides a microfluidic channel (30) containing a fluid with droplets (31), and at least one electromechanical transducer (20) attached at the substrate (10) adapted to excite an acoustic field in said channel (30). The side walls (33) are hard acoustic walls having a high specific acoustic impedance mismatch to said fluid in the channel (30) and the transducer (20) is configured to excite bulk acoustic waves (BAW) as standing waves (32) of a predetermined harmonic resonance mode between said hard acoustic side walls (33), which couple into the fluid in the channel (30) exerting acoustic pressure on droplets (31) suspended in said fluid towards the pressure nodal line, pressure antinode line or centerline of the standing wave (32).

Abstract: The present invention relates to reactive preparations, comprising isocyanate-functional polyurethane building blocks, to a method for the production thereof, and to the use thereof as or in adhesives having high initial strength and high mechanical strength.

Abstract: The present invention provides a coated plastics film with a zinc tin oxide coating which has improved absorption property, in particular in the blue spectral range from 380 to 430 nm, the zinc tin oxide coating itself and a process for the production thereof, and an electronic device comprising a corresponding coated plastics film.

Abstract: The invention relates to low-viscosity, low-monomer aqueous polymer dispersions based on polychloroprene, and a process for the preparation thereof and the use thereof as a contact adhesive.

Abstract: The present invention relates to a method for the production of low-viscosity polyurethane prepolymers (PUR prepolymers) based on 2,4?-MDI, as well as the use of said polyurethane prepolymers.

Abstract: The invention relates to a process for the continuous production of a flexible substrate, preferably a plastics film containing a multi-layer coating in a roll-to-roll coating process, in which at least one vacuum coating process and at least one wet coating process are combined together, and to a device for use in such a process.