Patent application number | Description | Published |
20100270713 | Method of Manufacturing a Three-Dimensional Object by Use of Synthetic Powder Having Anti-Microbial Properties, and Synthetic Powder Having Anti-Microbial Properties for Such a Method - A method is provided, in which three-dimensional objects are manufactured by layer-wise solidifying powdery synthetic material by impact of electromagnetic or particle radiation, wherein the powdery synthetic material has an anti-microbial property so that the manufactured objects comprise surfaces having an anti-microbial effect. The anti-microbial property is achieved by additives which are present in each powder grain. Such additives can be noble metals, for example argent. The manufactured objects are mainly used in particular in the food industry and in medical engineering. | 10-28-2010 |
20110172387 | METHOD FOR INCREASING THE DIFFERENCE BETWEEN THE MELTING TEMPERATURE AND THE CRYSTALLIZATION TEMPERATURE OF A POLYAMIDE POWDER - The present invention relates to a method for reducing the crystallization temperature an the melting temperature of a polyamide powder resulting from the polymerization of at least one predominant monomer, in which the reduction in the crystallization temperature is greater than the reduction in the melting temperature, said method comprising a step of polymerization of said at least one predominant monomer with at least one different minor comonomer polymerized according to the same polymerization process as said at least one predominant monomer, said at least one minor comonomer being chosen from aminocarboxylic acids, diamine/diacid pairs, lactams and/or lactones, and said at least one minor comonomer representing from 0.1% to 20% by weight of the total blend of said monomers(s) and comonomer(s), preferably from 0.5% to 15% by weight of said total blend, preferably from 1% to 10% by weight of said total blend. | 07-14-2011 |
20110236698 | PULVERULENT COMPOSITION FOR THE MANUFACTURE OF ARTICLES WITH A METALLIC APPEARANCE, WHICH IS STABLE OVER TIME AND SHOWS IMPROVED RESISTANCE TO METAL MARKING - The present invention relates to a pulverulent composition for the manufacture of articles having a metallic appearance that is stable over time and an improved resistance to pencilling, said composition comprising: from 50 to 99.9% by weight of at least one thermoplastic polymer, from 0.1 to 5% by weight of at least one effect pigment, from 0 to 0.3% by weight of at least one metallic pigment relative to the total weight of the composition. | 09-29-2011 |
20120058264 | SPRAYING DEVICE AND METHOD - The present invention relates to a spraying nozzle, a spraying device including such a nozzle, and a spraying method implementing such a device. A nozzle for projecting powdery sold products for coating objects. The nozzle comprises a body having an essentially cylindrical shape and comprises at least two tunnels extending there through and insulated from each other. Each tunnel developing helically about a main axis of the nozzle. The tunnels are independently supplied with a fluid/powdery solid(s) mixture. The helical shape of the tunnels makes it possible to obtain a powerful jet with a conical shape capable of coating the inner surfaces of tubular objects. | 03-08-2012 |
20130004448 | METHOD FOR PREPARING A RECYCLABLE POLYAMIDE POWDER - The present invention relates to a method for preparing a recyclable polyimide powder, said method including the following consecutive steps: a) a step of adding 0.01 to 5 wt % of at least one antioxidant in powder form to a mixture including 20 to 95 wt % of polyamide powder and 5 to 80 wt % of liquid, relative to the weight of said mixture, said polyamide powder having a pH in the range from 3 to 8 and a yellowness index of less than 4, measured according to standard ASTM E 313-05, D1925, said liquid being non-solvent for polyamide at a temperature between 5° C. and the boiling temperature T | 01-03-2013 |
20130273131 | Method of Manufacturing a Three-Dimensional Object by Use of Synthetic Powder Having Anti-Microbial Properties, and Synthetic Powder Having Anti-Microbial Properties for Such a Method - A method is provided, in which three-dimensional objects are manufactured by layer-wise solidifying powdery synthetic material by impact of electromagnetic or particle radiation, wherein the powdery synthetic material has an anti-microbial property so that the manufactured objects comprise surfaces having an anti-microbial effect. The anti-microbial property is achieved by additives which are present in each powder grain. Such additives can be noble metals, for example argent. The manufactured objects are mainly used in particular in the food industry and in medical engineering. | 10-17-2013 |