FIELD: chemistry.
SUBSTANCE: method of producing said fine powder involves holding fine powder obtained from coarse powder or granulate at temperature at least 20°C higher than the polymer glass-transition temperature for more than 30 minutes. The method of making a three-dimensional object involves successive hardening of layers of the formed objects in places corresponding to the cross-section of the object.
EFFECT: improved method.
17 cl, 4 dwg, 4 tbl, 7 ex
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