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US 7,887,740 B2Granted
Composite powder, use in a shaping process, and mouldings produced from this powder
AssigneeEvonik Degussa GmbH
InventorsUlrich Simon, Sylvia Monsheimer, Maik Grebe, Stefan Altkemper
Life of this patent
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Abstract
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.
Claims6
A process for the production of mouldings via a layer-by-layer process, said process comprising selectively melting regions of a powder layer comprising at least one composite powder via introduction of electromagnetic energy;
- wherein the selectivity is achieved via application of inhibitors, of absorbers, or via masks;
- wherein the at least one composite powder comprises at least one polymer powder and porous glass beads;
- and wherein at least one other region is not melted.
Dependencies are inferred from the claim text.