Patent application number | Description | Published |
20080217821 | Welding Method by Means of Electromagnetic Radiation - Two shaped articles A and B which are not directly weldable to one another can be welded to one another with the aid of a film C if the material of the first surface of this film is compatible with the material of the shaped article A and the material of the second surface of this film is compatible with the material of the shaped article B and if either the film C or a surface region in contact therewith absorbs electromagnetic radiation. The welding is carried out by brining the first surface of the film C into contact with the shaped article A and the second surface of the film C into contact with the shaped article B and inputting electromagnetic radiation. | 09-11-2008 |
20080258346 | COMPOSITE POWDER, USE IN A SHAPING PROCESS, AND MOULDINGS PRODUCED FROM THIS POWDER - The present invention relates to a composite powder of polymer powder and porous glass beads, and to the use of this composite powder for shaping processes, and also to mouldings produced from this composite powder. | 10-23-2008 |
20080300353 | LASER SINTER POWDER WITH METAL SOAPS, PROCESS FOR ITS PRODUCTION, AND MOLDINGS PRODUCED FROM THIS LASER SINTER POWDER - A sinter powder containing a polyamide and metal soaps, in particular particles of a salt of an alkanemonocarboxylic acid. A process for laser sintering, and to moldings produced from the sinter powder. The moldings formed using the powder have advantages in appearance and in surface finish when recyclability in the selective laser sintering (SLS) process is taken into account. Moldings produced from recycled sinter powder have improved mechanical properties, in particular in the modulus of elasticity and tensile strain at break. | 12-04-2008 |
20090044906 | METHOD FOR DECORATING SURFACES - The surface of a shaped article produced in a first step, for example by means of rapid prototyping, is subsequently decorated by a method for the production of a surface-decorated shaped article in which
| 02-19-2009 |
20090088508 | POWDERY COMPOSITION OF A POLYMER AND A FLAMEPROOFING AGENT CONTAINING AMMONIUM POLYPHOSPHATE, METHOD FOR THE PRODUCTION THEREOF, AND MOULDED BODY PRODUCED FROM SAID POWDER - The present invention relates to a powder which, in addition to a polymer, comprises a flame retardant based on ammonium polyphosphate, to the use of this powder for the layer-by-layer production of moldings, and also to moldings produced from this powder. The moldings constructed using the inventive powder have marked advantages with regard to their flammability, when comparison is made with conventional products, and this permits use in aircraft, for example. | 04-02-2009 |
20090236775 | COPOLYAMIDE POWDER AND ITS PREPARATION, USE OF COPOLYAMIDE POWDER IN A SHAPING PROCESS AND MOULDINGS PRODUCED FROM THIS COPOLYAMIDE POWDER - A task often encountered in very recent times is the rapid provision of prototypes. Particularly suitable processes are those based on pulverulent materials and in which the desired structures are produced layer-by-layer through selective melting and solidification. The invention provides the constitution, production and use of a copolyamide powder which was produced using the following monomer units: a) laurolactam or ω-aminoundecanoic acid, and also b) dodecanedioic acid, and either c) decanediamine or dodecanediamine, in shaping processes, and also to mouldings produced through a layer-by-layer process which selectively melts regions of a powder layer, using this specific powder. Once the regions previously melted layer-by-layer have been cooled and solidified, the moulding can be removed from the powder bed. The mouldless layer-by-layer processes for the production of components using the copolyamide powder result in simplified and more reliable conduct of the process and better recyclability. | 09-24-2009 |
20100324190 | POWDERY COMPOSITION OF A POLYMER AND A FLAMEPROOFING AGENT CONTAINING AMMONIUM POLYPHOSPHATE, METHOD FOR THE PRODUCTION THEREOF, AND MOULDED BODY PRODUCED FROM SAID POWDER - A pulverulent composition that is a powder containing at least one polymer, and at least one flame retardant that contains ammonium polyphosphate, the powder having a maximum particle size of ≦150 μm and a median particle size of from 20 to 100 μm. | 12-23-2010 |
20110118410 | COMPOSITE POWDER, USE IN A SHAPING PROCESS, AND MOULDINGS PRODUCED FROM THIS POWDER - The present invention relates to a composite powder which comprises polymer powder and porous glass beads, and to the use of this composite powder for shaping processes, and also to mouldings produced from this composite powder. | 05-19-2011 |
20110130515 | POLYMER POWDER COMPRISING A COPOLYMER, USE IN A SHAPING METHOD WHICH USES A NON-FOCUSED APPLICATION OF ENERGY AND MOULDED BODY THAT IS PRODUCED FROM SAID POLYMER POWDER - A molding produced by a layer-by layer process of selectively melting regions of a respective pulverulent layer via unfocused introduction of electromagnetic energy, using a polymer powder, where the powder has at least one thermoplastic random copolymer with an ISO 1133 MFR value of from 12 to 1 g/10 min. | 06-02-2011 |
20110237756 | USE OF CYCLIC OLIGOMERS IN A SHAPING PROCESS, AND MOLDINGS PRODUCED BY THIS PROCESS - The present invention relates to a three-dimensional powder-based production process using powders based on cyclic oligomers, and to moldings produced by this process. | 09-29-2011 |
20120041132 | POLYMER POWDER COMPRISING POLYAMIDE USE THEREOF IN A MOULDING METHOD AND MOULDED BODY MADE FROM SAID POLYMER POWDER - A molding, produced by a layer-by-layer process in which regions of respective polymer pulverulent layers are selectively melted via introduction of electromagnetic energy, where the process employs a powder which comprises at least one homopolyamide prepared via polycondensation of diamines and dicarboxylic acids, wherein the homopolyamide has an enthalpy of fusion of at least 125 J/g and a recrystallization temperature of at least 148° C. | 02-16-2012 |
20120315483 | POLYAMIDE-BASED POLYMER POWDER, USE THEREOF IN A MOLDING METHOD, AND MOLDED ARTICLES MADE FROM SAID POLYMER POWDER - The invention relates to a polymer powder for use in a layer-by-layer method in which areas of each powder layer are selectively fused by introducing electromagnetic energy. Said polymer powder contains: at least one AB-type polyamide produced by polymerizing lactams comprising 10 to 12 carbon atoms in the monomer unit or polycondensing the corresponding ω-amino carboxylic acids comprising 10 to 12 carbon atoms in the monomer unit and at least one AABB-type polyamide produced by polycondensing diamines and dicarboxylic acids, each of which comprises 10 to 14 carbon atoms in the monomer units, the AB-type polyamide containing up to 20 mole % of the AABB comonomer units and the AABB-type polyamide containing up to 20 mole % of the AB monomer units. The invention also relates to a method for producing such a powder, a layer-by-layer method for producing a molded article from such a powder in which areas of each layer are selectively fused by introducing electromagnetic energy, the selectivity being obtained using masks or by applying inhibitors, absorbers or susceptors or focusing the applied energy, and molded articles produced in said manner. | 12-13-2012 |
20130011660 | POWDER COMPRISING POLYMER-COATED CORE PARTICLES COMPRISING METALS, METAL OXIDES, METAL NITRIDES OR SEMIMETAL NITRIDES - Composite particles comprising core particles completely or partially coated with a precipitated polymer, where the d | 01-10-2013 |
20130012643 | POWDER COMPRISING POLYMER-COATED GLASS PARTICLES - Composite particles comprising core particles completely or partially coated with a precipitated polymer, where the d | 01-10-2013 |
20130171416 | POWDER COMPRISING POLYMER-COATED INORGANIC PARTICLES - Composite particles comprising core particles completely or partially coated with a precipitated polymer, where the d | 07-04-2013 |
20130183493 | COMPONENT PROPERTIES THROUGH BEAM SHAPING IN THE LASER SINTERING PROCESS - An apparatus and method for the layer-by-layer production of three-dimensional objects wherein a powder layer is melted with a laser beam shaped such that the focus maximum power density is less than 50% greater than the average power density, is provided. Also provided are the corresponding mouldings. | 07-18-2013 |
20130183494 | COMPONENT PROPERTIES THROUGH OPTIMIZED PROCESS MANAGEMENT IN LASER SINTERING - A method for layer-by-layer production of a three dimensional object is provided. The method includes applying a layer of a polymer powder having a thickness; selectively irradiating portions of the polymer powder layer with a laser beam having an average power density and a focus maximum power density to melt and sinter the irradiated polymer powder; cooling the melted and sintered powder to obtain a solid mass having a shape; and repeating the application, irradiating and cooling operations until the three dimensional object is obtained; wherein a duty factor of the laser beam is greater than 60%. Also provided is an apparatus to carry out the method and a molding obtained therefrom. | 07-18-2013 |
20130183529 | POWDER COMPRISING POLYMER-COATED POLYMERIC CORE PARTICLES - The invention relates to powder, comprising composite particles comprising core particles completely or partially coated with a precipitated first polymer, where the core particles comprise a second polymer which differs from the precipitated first polymer, and where the ratio of the d | 07-18-2013 |
20140371364 | POLYMER POWDER WITH POLYAMIDE, USE IN A SHAPING PROCESS, AND MOLDINGS PRODUCED FROM THIS POLYMER POWDER - The present invention relates to a polymer powder which comprises nylon-11, and to the use of this powder for shaping processes, and also to moldings produced from this polymer powder. | 12-18-2014 |