PAEK-POWDER FOR APPLICATION IN PROCESS OF LAYER-BY-LAYER OBTAINING OF THREE-DIMENSIONAL OBJECT AND METHOD OF LAYER-BY-LAYER OBTAINING OF THREE-DIMENSIONAL OBJECT FROM POWDER-LIKE MATERIAL Russian patent published in 2015 - IPC C08G65/40 C08G67/00 B29C67/00 

FIELD: chemistry.

SUBSTANCE: claimed invention relates to a finely-disperse powder of polyaryletherketone for the application as a construction material in the process of the layer-by-layer creation of three-dimensional objects. Described is the finely-disperse polyaryletherketone (PAEK) powder for the application as the construction material in the process of the layer-by-layer creation of three-dimensional objects, with the finely-disperse (PAEK) powder having the melt viscosity below 0.25 kN·s/m², D_0.90 value lower than 150 mcm, BET specific surface lower than 40 m²/g and bulk density with a value higher or equal to 0.42 g/cm³, and the powder does not require the introduction of auxiliary additives, improving looseness (versions). Also described is a method of layer-by-layer obtaining of a three-dimensional object from the powder-like material, in which successive layers of the created object from the hardening powder material are successively hardened in the places, corresponding to the object cross-section, with the powder material being the powder, mentioned above.

EFFECT: finely-disperse polyaryletherketone powder, possessing characteristics, which make it possible to obtain a high-precision three-dimensional object with high surface quality.

13 cl, 4 dwg, 4 tbl, 7 ex