Abstract: The invention relates to a method for producing a polymer comprising the following steps: (A) depositing a radically cross-linkable resin, obtaining a radically cross-linked resin; and (B) treating the radically cross-linked resin under conditions which are sufficient to trigger a chemical reaction that is different from the radical cross-linking in the radically cross-linked resin. The radically cross-linkable resin comprises a curable component, in which there are NCO groups, olefinic C?C double bonds and epoxide groups, and the chemical reaction in the radically cross-linked resin that is different from the radical cross-linking is the reaction of NCO groups and epoxide groups to form oxazolidinone groups.

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 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: 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; IV) treating the precursor obtained after step III) under conditions sufficient to at least partially trimerize to isocyanurate groups NCO groups present in the free-radically crosslinked resin of the obtained precursor to obtain the object.

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., and the construction material comprises one or more cyclic tin compounds of formula F-I, F-II and/or F-III.

Abstract: An additive manufacturing method wherein the carrier (400) is within a vessel (100), the vessel contains the free-radically crosslinkable resin (300) and a liquid (200) which is immiscible with the free-radically cross-linkable resin (300) and has a higher density than the free-radically crosslinkable resin (300), such that the free-radically crosslinkable resin (300) floats on top of the liquid (200) and, prior to each step II), the distance between the carrier (400) and the free-radically crosslinkable resin (300) is altered such that a layer of the free-radically crosslinkable resin forms above the uppermost surface (420), viewed in vertical direction, of the previously deposited layer of the construction material (600) and at least partially forms contact with this uppermost surface (420) of the previously deposited layer of the construction material (600). The free-radically crosslinkable resin (300) comprises a urethane (meth)acrylate.

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 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: 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 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 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: An additive manufacturing method wherein the carrier (400) is within a vessel (100), the vessel contains the free-radically crosslinkable resin (300) and a liquid (200) which is immiscible with the free-radically cross-linkable resin (300) and has a higher density than the free-radically crosslinkable resin (300), such that the free-radically crosslinkable resin (300) floats on top of the liquid (200) and, prior to each step II), the distance between the carrier (400) and the free-radically crosslinkable resin (300) is altered such that a layer of the free-radically crosslinkable resin forms above the uppermost surface (420), viewed in vertical direction, of the previously deposited layer of the construction material (600) and at least partially forms contact with this uppermost surface (420) of the previously deposited layer of the construction material (600). The free-radically crosslinkable resin (300) comprises a urethane (meth)acrylate.

Abstract: The invention relates to a method for producing a polymer comprising the following steps: (A) depositing a radically cross-linkable resin, obtaining a radically cross-linked resin; and (B) treating the radically cross-linked resin under conditions which are sufficient to trigger a chemical reaction that is different from the radical cross-linking in the radically cross-linked resin. The radically cross-linkable resin comprises a curable component, in which there are NCO groups, olefinic C?C double bonds and epoxide groups, and the chemical reaction in the radically cross-linked resin that is different from the radical cross-linking is the reaction of NCO groups and epoxide groups to form oxazolidinone groups.

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 a method for producing an object in an additive manufacturing process from a precursor and comprises the following steps: I) depositing a layer of a radically cross-linkable construction material, which corresponds to a first selected cross-section of the precursor, on a carrier; II) depositing a layer of a radically cross-linkable construction material, which corresponds to a further selected cross-section of the precursor, on a previously applied layer of the radically cross-linked construction material; III) repeating step II) until the precursor is formed. The radically cross-linkable construction material comprises a thermoplastic radically cross-linkable polyurethane with a urethane group content of ?5% by weight and a photoinitiator. The radically cross-linkable construction material is also heated to a processing temperature that is greater than the melting point of the radically cross-linkable polyurethane. After step III) the precursor having a temperature of 20° C.

Abstract: The invention relates to a method for producing an object comprising the the following steps: producing a shell, which surrounds a volume for holding a fluid, by means of an additive manufacturing method from a construction material; providing a reaction mixture comprising a polyisocyanate component and a polyol component in the volume and allowing the reaction mixture to react in the volume such that a polymer present at least partly in the volume is obtained. The reaction mixture has a setting time of ?2 minutes. An object that can be obtained by means of a method according to the invention comprises a shell, which defines a volume located within the shell, and a foam, which completely or partly fills the volume.

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: 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.