Abstract: The invention relates to a method for producing an at least partially coated object, comprising the step of producing the object from a construction material by means of an additive manufacturing method, the construction material comprising a thermoplastic polyurethane material. Following the production of the object, the method comprises the step of at least partially bringing a preparation into contact with the object, the preparation being selected from: an aqueous polyurethane dispersion; an aqueous dispersion of a polymer comprising OH groups, this dispersion also containing a compound comprising NCO groups; an aqueous preparation of a compound containing NCO groups, but not containing any polymers comprising OH groups; or a combination of at least two thereof. The invention also relates to an at least partially coated object that was obtained by a method according to the invention.

Abstract: The present invention relates to polymerizable compositions which contain components that can be crosslinked both via isocyanurate bonds and by a radical reaction mechanism. The invention further relates to methods by way of which polymers can be produced from said compositions.

Abstract: The present invention relates to polymerizable compositions which contain components that can be crosslinked both via isocyanurate bonds and by a radical reaction mechanism. The invention further relates to methods by way of which polymers can be produced from said compositions.

Abstract: The present invention relates to novel anisotropic composite materials and processes for production thereof. The composite materials are based on the crosslinking of polyisocyanates and feature good weathering stability.

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: A process for producing an object from a precursor comprises the steps of: I) depositing a free-radically crosslinked resin atop a carrier to obtain a ply of a construction material joined to the carrier which corresponds to a first selected cross section of the precursor; II) depositing a free-radically crosslinked resin atop a previously applied ply of the construction material to obtain a further ply of the construction material which corresponds to a further selected cross section of the precursor and which is joined to the previously applied ply; III) repeating step II) until the precursor is formed; wherein the depositing of a free-radically crosslinked resin at least in step II) is effected by exposure and/or irradiation of a selected region of a free-radically crosslinkable resin corresponding to the respectively selected cross section of the object and wherein the free-radically crosslinkable resin has a viscosity (23° C., DIN EN ISO 2884-1) of ?5 mPas to ?100000 mPas.

Abstract: A process for producing an object from a precursor comprises the steps of: depositing a free-radically crosslinked resin atop a carrier to obtain a ply of a construction material joined to the carrier which corresponds to a first selected cross section of the precursor; depositing a free-radically crosslinked resin atop a previously applied ply of the construction material to obtain a further ply of the construction material which corresponds to a further selected cross section of the precursor and which is joined to the previously applied ply; repeating step II) until the precursor is formed; wherein the depositing of a free-radically crosslinked resin at least in step II) is effected by exposure and/or irradiation of a selected region of a free-radically crosslinkable resin corresponding to the respectively selected cross section of the object and wherein the free-radically crosslinkable resin has a viscosity (23° C., DIN EN ISO 2884-1) of ?5 mPas to ?100000 mPas.

Abstract: A method for producing an article in which a layer (200) of meltable polymer is selectively melted at least partially. This takes place according to a selected cross section of the article to be formed. The at least partially melted material is added on layer by layer to a carrier (500) or to previous layers bonded to the carrier (500). A system that is suitable for carrying out the method according to the invention has a substrate (100), a control unit (600), an application unit (700) for applying the particles to the substrate (100), an energy exposure unit (700) and a contacting unit (800).

Abstract: A method for producing an article in which a layer with a radically cross-linkable resin is selectively crosslinked at least partially. This takes place according to a selected cross section of the article to be formed by means of selective application of a radical initiator. The at least partially crosslinked material is added on layer by layer to a carrier or to previous layers bonded to the carrier. A system that is suitable for carrying out the method according to the invention has a substrate, a control unit, an application unit for applying the resin to the substrate, an application unit for applying an initiator to the resin, an energy exposure unit and a contacting unit.

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: 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 and wherein at least one of the first material Mi or of the further material Mx is a powder. Also, a three dimensional structure is described which is available according to the process according to the invention.

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: 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: A method of treating at least part of a surface (110) of an article (100) in which an article (100) is treated, at least part of a surface (110, 111) of the article having been produced by an additive manufacturing method from a construction material, and the construction material provides a temperature TG? at which the storage modulus G? of the construction material (determined by dynamic-mechanical analysis according to ISO 6721 at a shear rate of 1/s) is 10 MPa. The article is preferably placed into an evacuable volume and the volume is evacuated. By heating and exerting pressure, the surface is plastically deformed and can be smoothed thereby.

Abstract: The invention relates to a method for producing a three-dimensional object, the outer surface of which comprises at least one surface segment that is created in that a surface segment in two-dimensional form is first produced on a flat base plate by means of an additive manufacturing method (layer-building shaping method), comprising the following steps: I) applying at least one curable polymer or curable reaction resin in flowable form as material webs to a flat base plate by means of a layer-building shaping method in order to create a first layer; II) applying a second layer to the first layer, which second layer is created by means of the same layer-building shaping method as in step I); III) optionally applying 1 to 198 further layers, which are created in accordance with step II), wherein in each case a new layer is applied to the previous layer; IV) curing the layers; V) detaching the cured surface segment from the flat base plate; and VI) shaping the cured surface segment into a three-dimensional obje

Abstract: A process for producing an object from a precursor comprises the steps of: depositing a free-radically crosslinked resin atop a carrier to obtain a ply of a construction material joined to the carrier which corresponds to a first selected cross section of the precursor; depositing a free-radically crosslinked resin atop a previously applied ply of the construction material to obtain a further ply of the construction material which corresponds to a further selected cross section of the precursor and which is joined to the previously applied ply; repeating step II) until the precursor is formed; wherein the depositing of a free-radically crosslinked resin at least in step II) is effected by exposure and/or irradiation of a selected region of a free-radically crosslinkable resin corresponding to the respectively selected cross section of the object and wherein the free-radically crosslinkable resin has a viscosity (23° C., DIN EN ISO 2884-1) of ?5 mPas to ?100000 mPas.

Abstract: A method of treating at least part of a surface (110) of an article (100) in which an article (100) is treated, at least part of a surface (110, 111) of the article having been produced by an additive manufacturing method from a construction material, and the construction material provides a temperature TG? at which the storage modulus G? of the construction material (determined by dynamic-mechanical analysis according to ISO 6721 at a shear rate of 1/s) is 10 MPa. The article is preferably placed into an evacuable volume and the volume is evacuated. By heating and exerting pressure, the surface is plastically deformed and can be smoothed thereby.

Abstract: The invention relates to a method for producing a three-dimensional object, the outer surface of which has at least one surface section that is generated in that, by means of an additive production method (layer-building forming method), initially a surface section is produced on a flat base plate (5) in two-dimensional form, comprising the following steps: I) applying at least one curable polymer or curable reaction resin with a respective elastic modulus according to DIN 53504 (effective: 18 Apr.