Abstract: The present invention relates to a thermosetting material for use in a 3D printing process comprising: a) at least one epoxy resin A, b) at least one elastomer-modified epoxy resin B, c) at least one resin C with a dynamic viscosity of below 4 Pas at 150° C., d) at least one of a curing agent D capable of reacting with A, B and optionally C, e) and optionally additional compounds, wherein the glass transition temperature of the uncured material is at least 30° C., preferably at least 40° C. as measured with DSC at a heating rate of 20° C./min. The invention further relates to a method of producing a cured 3D thermoset object and the use of the above-mentioned thermosetting material in a 3D printing process.

Abstract: The present invention relates to a thermosetting material for use in additive manufacturing, the material comprising at least one thermosetting resin and at least two curing compounds different from said thermosetting resin that are able to cure this/these thermosetting resin(s), wherein at least one curing compound is provided for curing during the additive manufacturing process and at least one curing compound is provided for curing during a post-curing step. The invention furthermore relates to a method of producing a cured 3D thermoset object comprising at least the steps of subjecting the material according to the present invention to an additive manufacturing process, obtaining a partially cured 3D thermoset object and subsequently subjecting the partially cured 3D thermoset object to a post-curing process to further cure the 3D thermoset object Additionally, the invention relates to the use of the material in an SLS, FFF, CBAM, FGF or powder bed additive manufacturing process.

Abstract: A housing material (108) for a photovoltaic module comprises a plurality of fibers and powder coating material (104), wherein the powder coating material (104) comprises an epoxy resin with an epoxy equivalent weight in between 150 g/eq. and 1800 g/eq, wherein a glass transition temperature of the powder coating material (104) is at least 30° C. measured with Differential Scanning calorimetry at a heating rate of 20 K/min.

Abstract: The present invention relates to the use of a thermosetting polymeric powder composition in a 3D printing process to produce a 3D duroplast, wherein the composition comprises at least one curable polymeric binder material and at least one thermoplast having a Tg and/or Mp below the temperature provided in a pass of the printing process and wherein during each pass of the printing process said polymeric binder material is at least partially cured within the layer thus formed and also at least partially crosslinked with the previous layer. The invention furthermore relates to a 3D printing process using such a thermosetting polymeric powder composition and a 3D-printing product obtained when using such a thermosetting polymeric powder composition.

Abstract: The present invention relates to a powder coating formulation, comprising at least one partially crystalline thermoplastic unsaturated polyester (A), at least one thermoplastic allyl prepolymer (B) which is copolymerizable with said polyester, and a thermal initiation system (C), including at least one thermal initiator, wherein the allyl prepolymer (B) has a weight average molar mass greater than 5000 g/mol, preferably greater than 10000 g/mol, and particularly preferably greater than 20000 g/mol, and/or has a viscosity of 30 mPas to 200 mPas, preferably of between 40 mPas and 170 mPas, particularly preferably of between 50 mPas and 150 mPas, and wherein the unsaturated polyester (A) has a melting point of between 90 and 120° C., preferably of 90-110° C., particularly preferably of 90-105° C., and still more preferably of 90-100° C.

Abstract: The present invention relates to the use of a thermosetting polymeric powder composition in a 3D dry printing process to produce a 3D duroplast object, the composition comprising at least one curable polymeric binder material with free functional groups, wherein during the 3D dry printing process the formed object is only partially cured to a curing degree of below 90%, preferably below 60%, most preferably between 35% and 60%, and the printing process is being followed by a post treatment comprising a heat treatment step to fully cure the printed object into a 3D duroplast object.

Abstract: The present invention relates to the use of a thermosetting polymeric powder composition in a 3D printing process to produce a 3D duroplast, wherein the composition comprises at least one curable polymeric binder material and at least one thermoplast having a Tg and/or Mp below the temperature provided in a pass of the printing process and wherein during each pass of the printing process said polymeric binder material is at least partially cured within the layer thus formed and also at least partially crosslinked with the previous layer. The invention furthermore relates to a 3D printing process using such a thermosetting polymeric powder composition and a 3D-printing product obtained when using such a thermosetting polymeric powder composition.

Abstract: The present invention relates to a powder coating formulation, comprising at least one partially crystalline thermoplastic unsaturated polyester (A), at least one thermoplastic allyl prepolymer (B) which is copolymerizable with said polyester, and a thermal initiation system (C), including at least one thermal initiator, wherein the allyl prepolymer (B) has a weight average molar mass greater than 5000 g/mol, preferably greater than 10000 g/mol, and particularly preferably greater than 20000 g/mol, and/or has a viscosity of 30 mPas to 200 mPas, preferably of between 40 mPas and 170 mPas, particularly preferably of between 50 mPas and 150 mPas, and wherein the unsaturated polyester (A) has a melting point of between 90 and 120° C., preferably of 90-110° C., particularly preferably of 90-105° C., and still more preferably of 90-100° C.

Abstract: The present invention relates to high-temperature solid oxide fuel cells, in particular to rotationally symmetrical high-temperature solid oxide fuel cells. The inventive oxide-ceramic high-temperature fuel cell having one or more gas channel(s) open at at least one end. The fuel cell has a substrate surrounding the gas channel(s) at least sectionally, preferably completely. The gas channel(s) and/or the substrate surrounding the gas channel(s) has/have (a) changing cross-sections(s), preferably (a) conically tapering cross-section(s), seen in the direction of the longitudinal axis/axes of the gas channel(s).

Abstract: The present invention relates to high-temperature solid oxide fuel cells, in particular to rotationally symmetrical high-temperature solid oxide fuel cells. The inventive oxide-ceramic high-temperature fuel cell having one or more gas channel(s) open at at least one end. The fuel cell has a substrate surrounding the gas channel(s) at least sectionally, preferably completely. The gas channel(s) and/or the substrate surrounding the gas channel(s) has/have (a) changing cross-sections(s), preferably (a) conically tapering cross-section(s), seen in the direction of the longitudinal axis/axes of the gas channel(s).

Abstract: A fuel cell system comprising at least one fuel cell unit (1) to generate electrical power and at least one component, upstream and/or downstream of said fuel cell unit in the anode flow path, said component preventing, as a reoxidation barrier, reoxidation of parts of the anode sections or of the anode sections as a whole in the case that an oxidizing gas is entering.

Abstract: The invention relates to a high-temperature fuel cell system comprising at least one fuel cell as heat generating source and/or at least one fuel cell system component as exothermic or endothermic source enclosed by a thermal insulation system. Between an inner thermal insulation unit and a radial outer shell at least one hollow space exists and this hollow space is evacuated or at least one fluid can be fed through and/or stored inside of the hollow space.