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; •III) repeating step II) until the object is formed.

Abstract: The invention relates to a method for the mechanical testing of a structure (1, 10) formed as one part, comprising the following steps: a) identifying a sub-element (2, 11) in the structure (1, 10) formed as one part for generating a test element (3, 3?) that is intended to undergo mechanical testing, wherein the sub-element (2, 11) only represents a portion of the structure (1, 10) formed as one part, b) determining the spatial-geometrical structure of the sub-element (2, 11), c) generating the test element (3, 3?) on the basis of the spatial-geometrical structure of the sub-element (2, 11) and at least in part or in full by way of a 3D printing process, d) carrying out at least one mechanical test on the test element (3, 3?) generated.

Abstract: A method of applying a material comprising a fusible polymer comprises the step of: applying a filament of the at least partly molten material comprising a fusible polymer from a discharge opening of a discharge element to a first substrate. The fusible polymer has the following properties: a melting point (DSC, differential scanning calorimetry; 2nd heating at heating rate 5° C./min) within a range from ?35° C. to ?150° C.; a glass transition temperature (DMA, dynamic-mechanical analysis to DIN EN ISO 6721-1:2011) within a range from ??70° C. to ?110° C.; wherein the filament, during the application process, has an application temperature of ?100° C. above the melting point of the fusible polymer for ?20 minutes. There are still free NCO groups in the material including the fusible polymer.

Abstract: The invention relates to a method for producing an object from different powdered components by means of additive manufacturing, wherein a plurality of powdered components having different melting points are simultaneously placed in precise positions, and the powder coating (1) is subsequently thermally treated. The construction material is, for example, polyether ether ketone (PEEK), polyaryl ether ketone (PAEK), polyether ketone ketone (PEKK), polyether sulfone, polyimide, polyether imide, polyester, polyamides, polycarbonates, polyurethanes, polyvinyl chloride, polyoxymethylene, polyvinyl acetate, polyacrylates, polymethacrylates, polyethylene, polypropylene, polylactide, ABS (acrylonitrile butadiene styrene copolymers), PETG (glycol modified polyethylene terephthalate), polystyrene, or mixtures thereof. The supporting material is an inorganic salt of the alkali metals, an inorganic salt of the alkaline earth metals, or a mixture thereof.

Abstract: The present invention relates to a method for functionalizing a workpiece surface, comprising the following steps: a) providing a workpiece; b) providing a film; c) functionalizing at least one film side by the location-selective application of a functionalization composition comprising a polymer material onto part of the film side in one or more layers by means of a 3D printing process; d) creating an integrally bonded or interlocking connection between the workpiece surface and the film functionalized in step c) by bringing the film into contact with at least part of the workpiece surface, wherein the integrally bonded or interlocking connection to the workpiece surface is achieved with a functionalized film side. The invention further relates to workpieces having a surface functionalized according to the invention.

Abstract: A method of applying a material comprising a fusible polymer comprises the step of: applying a filament of the at least partly molten material comprising a fusible polymer from a discharge opening of a discharge element to a first substrate. The fusible polymer has the following properties: a melting point (DSC, differential scanning calorimetry; 2nd heating at heating rate 5° C./min) within a range from ?35° C. to ?150° C.; a glass transition temperature (DMA, dynamic-mechanical analysis to DIN EN ISO 6721-1:2011) within a range from ??70° C. to ?110° C.; wherein the filament, during the application process, has an application temperature of ?100° C. above the melting point of the fusible polymer for ?20 minutes. There are furthermore blocked NCO groups present in the material comprising the fusible polymer.

Abstract: A process is described for producing a three dimensional structure, the process including the following steps a) applying of at least a first material M1 onto a substrate to build a first layer L1 on the substrate; b) layering of at least one further layer Ly of the first material M1 or of a further material Mx onto the first layer L1, wherein the at least one further layer Ly covers the first layer L1 and/or previous layer Ly-1 at least partially to build a precursor of the three dimensional structure; c) curing the precursor to achieve the three dimensional structure; wherein at least one of the materials M1 or Mx provides a Mooney viscosity of >10 ME at 60° C. and of <200 ME at 100° C. before curing. Also, a three dimensional structure is described which is available according to the process according to the invention.

Abstract: The invention relates to a method for producing a treated object, comprising the steps: a) producing an object by means of additive manufacturing, the object being produced by the repeated arrangement, layer by layer, of at least one first material on a substrate spatially selectively in accordance with a cross-section of the object, the method comprising the additional method step: b) at least partially bringing the object, which is still on the substrate or has already been detached from the substrate and which has been produced by additive manufacturing, into contact with a liquid heated to ?T or a powder bed of a second material heated to ?T for a time ?1 minute in order to obtain the treated object, T standing for a temperature of ?25° C. The invention further relates to an object produced by a method of this type.

Abstract: The present invention relates to a fibre-reinforced 3D-printed elastic product (1, 3, 4, 7, 10, 12), wherein the product comprises a weight proportion of ?50% of a polymer having a mean molecular weight of ?5000 g/mol, measured by means of GPC, and a weight proportion of ?0.5% and ?20% of one or more fibres having an aspect ratio of ?100 and a length of ?3 cm and ?1000 cm, the product being produced at least in part by means of an FFF (Fused Filament Fabrication) method, and the product having a tensile modulus of ?1.5 GPa in the region of the fibre reinforcement and in the direction of the fibre symmetry axis. The product also has a tensile modulus, measured according to DIN EN ISO 527-1, of ?1.2 GPa in the region of the fibre reinforcement and perpendicular to the fibre symmetry axis, and has a yield strength of ?5%, measured according to DIN EN ISO 527-1, perpendicular to the fibre symmetry axis.

Abstract: The present invention relates to an orthodontic splint made of a crosslinked polymer, wherein the crosslinked polymer has a glass transition temperature Tg, determined by means of dynamic-mechanical analysis at a frequency of 1/s DMA as peak tan ?, of ?25° C. and ?60° C., a modulus of elasticity, determined by means of dynamic-mechanical analysis as the storage modulus E? at a frequency of 1/s at 35° C., of ?500 MPa and ?4000 MPa, and a loss factor tan ?, determined by means of dynamic-mechanical analysis at a frequency of 1/s at 35° C., of ?0.08. The invention further relates to a process for producing such splints.

Abstract: The invention relates to a print head (100) for an additive fused deposition modelling method having a thermoplastic construction material, comprising:—at least one inlet (10) for receiving a construction material (11) into the print head;—at least one melt region, for melting the construction material (11), which is arranged downstream of the inlet (10) and is fluidically connected, at least temporarily, to the inlet (10); and—at least one first outlet (30) that is fluidically connected, at least temporarily, to the melt region (20), for discharging melted construction material (12) out of the melt region (29) at a first discharge rate; wherein—the print head (100) also comprises at least one second outlet (40) that is fluidically connected, at least temporarily, to the melt region (20) for discharging melted or non-melted construction material (11, 12) out of the melt region (20) at a second discharge rate; and—the first discharge rate can be influenced by a first discharge rate influencing device (50) for

Abstract: A method of applying a material comprising a fusible polymer comprises the step of: applying a filament of the at least partly molten material comprising a fusible polymer from a discharge opening of a discharge element to a first substrate. The fusible polymer has the following properties: a melting point (DSC, differential scanning calorimetry; 2nd heating at heating rate 5° C./min) within a range from ?35° C. to ?150° C.; a glass transition temperature (DMA, dynamic-mechanical analysis to DIN EN ISO 6721-1:2011) within a range from ??70° C. to ?110° C.; wherein the filament, during the application process, has an application temperature of ?100° C. above the melting point of the fusible polymer for ?20 minutes. There are furthermore blocked NCO groups present in the material comprising the fusible polymer.

Abstract: A method of applying a material comprising a fusible polymer comprises the step of: applying a filament of the at least partly molten material comprising a fusible polymer from a discharge opening of a discharge element to a first substrate. The fusible polymer has the following properties: a melting point (DSC, differential scanning calorimetry; 2nd heating at heating rate 5° C./min) within a range from ?35° C. to ?150° C.; a glass transition temperature (DMA, dynamic-mechanical analysis to DIN EN ISO 6721-1:2011) within a range from ??70° C. to ?110° C.; wherein the filament, during the application process, has an application temperature of ?100° C. above the melting point of the fusible polymer for ?20 minutes. There are still free NCO groups in the material including the fusible polymer.

Abstract: The invention relates to a method for producing a viscoelastic damping body (1, 20, 30), comprising at least one spring element (4) and at least one damping element coupled thereto, wherein the method is characterized in that the damping element and optionally also the spring element (4) are produced by means of a 3-D printing method. The invention further relates to a viscoelastic damping body (1, 20, 30) that is or can be produced according to such a method and to a volume body comprising or consisting of a plurality of such damping bodies (1, 20, 30).

Abstract: A process for manufacturing an object involves the steps of: I) depositing a radically cross-linked resin on a carrier so that a layer of a structuring material joined to the carrier is obtained, said layer corresponding to a first selected cross-section of the object; II) depositing a radically cross-linked resin on a previously applied layer of the structuring material so that an additional layer of the structuring material is obtained which corresponds to a further selected cross-section of the object and which is joined to the previously applied layer; III) repeating step II) until the object is formed, wherein the deposition of a radically cross-linked resin in steps I) and II) includes the application of a radically cross-linkable resin to the carrier or the previously applied layer and is performed at least in step II) by applying energy to a selected region of a radically cross-linkable resin, corresponding to the selected cross-section of the object, the radically cross-linkable resin having a viscos

Abstract: The invention relates to a method for producing an object, comprising the step of producing the object from a construction material by means of an additive manufacturing process, wherein the construction material comprises a plurality of thermoplastic polyurethane materials. The materials differ by at least one mechanical property such as the shore hardness or the elongation at break. The invention also relates to an object obtained according to said method.

Abstract: A process for manufacturing an article, comprising the step of manufacturing the article via an additive fabrication process from a structural material, is notable in that the structural material comprises a polymer selected from the following group: (co)polycarbonates, polyesters, polyestercarbonates, polyformals, polyamides, polyethers, polyvinyl chloride, polymethyl (meth)acrylate, polystyrene or a combination of at least two thereof and an additive absorbing infrared radiation. The additive absorbing infrared radiation is selected for its chemical structure and its concentration in the structural material such that it reduces transmission by the structural material of light in the wavelength range between 600 nm and 1700 nm, determined on a sample 100 ?m thick, by ?2.5 percentage points relative to a structural material sample with a thickness of 100 ?m that does not contain the additive absorbing infrared radiation.

Abstract: The invention relates to a method for producing an object from a construction material, the construction material comprising radically crosslinkable groups, NCO groups and groups having Zerewitinoff active H atoms, and the object being a three-dimensional object and/or a layer. During and/or after the production of the object, the construction material is heated to a temperature of >50° C.

Abstract: The invention relates to a method for producing an object from a precursor, comprising the steps: I) depositing a radically cross-linked resin on a carrier so that a layer of a construction material connected to the carrier is obtained, said layer corresponding to a first selected cross-section of the precursor; II) depositing a radically cross-linked resin on a previously applied layer of the construction material so that an additional layer of the construction material is obtained, which corresponds to a further selected cross-section of the precursor and which is connected to the previously applied layer; III) repeating step II) until the precursor is formed, wherein, at least in step II), the deposition of a radically cross-linked resin is carried out by allowing energy to act on a selected region of a radically cross-linkable resin, corresponding to the respectively selected cross-section of the object, wherein the radically cross-linkable resin has a viscosity (23° 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.