| 摘要 |
A process for production of a powder suitable for use in a process for the layer-by-layer moldless production of a three-dimensional shaped article, in which regions of the respective powder layer are selectively melted via input of electromagnetic energy, comprising mixing of a polymer or copolymer with at least one water-soluble polymeric polyol, the dissolution of the mixture in water to form a dispersion, the isolation of the polymer particles or copolymer particles from the dispersion, and the washing and drying of the isolated polymer particles or isolated copolymer particles; a powder which comprises a polymer powder or copolymer powder with from 0.001% by weight to 5% by weight content of at least one polymeric polyol, the polymeric polyol having been selected from the group consisting of polyethylene glycols and polyvinyl alcohols; the powder formed from the process; method of using the powder; and a shaped article formed from the powder.
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