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By a temper treatment a polyaryletherketone powder is processed such that it is particularly suited for the use in a method for a layer-wise manufacturing of a three-dimensional object. To this effect the powder is tempered at a temperature that is at least 20° C. above the glass transition temperat

By a temper treatment a polyaryletherketone powder is processed such that it is particularly suited for the use in a method for a layer-wise manufacturing of a three-dimensional object. To this effect the powder is tempered at a temperature that is at least 20° C. above the glass transition temperature for at least 30 minutes before it is used as building material.

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1. Polyaryletherketone(PAEK) fine powder for the use as building material in a method for a layer-wise generation of three-dimensional objects, wherein the PAEK fine powder has a melt viscosity that lies below 0.25 kN*s/m2, a D0.90-value below 150 μm, a BET surface below 40 m2/g and a bulk density h

1. Polyaryletherketone(PAEK) fine powder for the use as building material in a method for a layer-wise generation of three-dimensional objects, wherein the PAEK fine powder has a melt viscosity that lies below 0.25 kN*s/m2, a D0.90-value below 150 μm, a BET surface below 40 m2/g and a bulk density having a value equal to or larger than 0.42 g/cm2. 2. Polyaryletherketone(PAEK) fine powder for the use as building material in a method for a layer-wise generation of three-dimensional objects, wherein the PAEK fine powder has a melt viscosity between 0.25 kN*s/m2 and 0.50 kN*s/m2, a D0.90-value below 150 μm, a BET surface below 40 m2/g and a bulk density having a value which is equal to or larger than 0.39 g/cm2. 3. Polyaryletherketone(PAEK) fine powder for the use as building material in a method for a layer-wise generation of three-dimensional objects, wherein the PAEK fine powder has a melt viscosity above 0.50 kN*s/m2, a D0.90-value below 150 μm, a BET surface below 40 m2/g and a bulk density having a value that is equal to or larger than 0.34 g/cm2. 4. Polyaryletherketone fine powder according to claim 1 that comprises at least one powder from the group polyetheretherketone (PEEK), polyetherketoneketone (PEKK), polyetherketone (PEK), polyetheretherketoneketone (PEEKK) or polyetherketoneetherketoneketone (PEKEKK). 5. Polyaryletherketone fine powder according to claim 2 that comprises at least one powder from the group polyetheretherketone (PEEK), polyetherketoneketone (PEKK), polyetherketone (PEK), polyetheretherketoneketone (PEEKK) or polyetherketoneetherketoneketone (PEKEKK). 6. Polyaryletherketone fine powder according to claim 3 that comprises at least one powder from the group polyetheretherketone (PEEK), polyetherketoneketone (PEKK), polyetherketone (PEK), polyetheretherketoneketone (PEEKK) or polyetherketoneetherketoneketone (PEKEKK). 7. Polyaryletherketone fine powder according to claim 1, in which at least one additive is added as further component. 8. Polyaryletherketone fine powder according to claim 2, in which at least one additive is added as further component. 9. Polyaryletherketone fine powder according to claim 3, in which at least one additive is added as further component. 10. Polyaryletherketone fine powder according to claim 7, wherein the additive is worked into the powder by means of a fusion joining. 11. Polyaryletherketone fine powder according to claim 8, wherein the additive is worked into the powder by means of a fusion joining. 12. Polyaryletherketone fine powder according to claim 9, wherein the additive is worked into the powder by means of a fusion joining. 13. Method for a layer-wise manufacturing of a three-dimensional object from a material in powder form, in which method successive layers of the object to be formed from solidifiable powder material are subsequently solidified at positions corresponding to the cross-section of the object and wherein the powder material is a powder according to claim 1. 14. Method for a layer-wise manufacturing of a three-dimensional object from a material in powder form, in which method successive layers of the object to be formed from solidifiable powder material are subsequently solidified at positions corresponding to the cross-section of the object and wherein the powder material is a powder according to claim 2. 15. Method for a layer-wise manufacturing of a three-dimensional object from a material in powder form, in which method successive layers of the object to be formed from solidifiable powder material are subsequently solidified at positions corresponding to the cross-section of the object and wherein the powder material is a powder according to claim 3. 16. Method for a layer-wise manufacturing of a three-dimensional object from a material in powder form, in which successive layers of the object to be formed from a solidifiable powder material are successively solidified at positions corresponding to the cross-section of the object and wherein before the start of the manufacturing process the powder is treated by exposing the powder to a temperature that lies at least 20° above a glass transition temperature determined by means of differential scanning calorimetry (DSC) according to DIN 53765 for a period that is longer than 30 minutes, wherein the powder has been manufactured by grinding, a precipitation process from a solvent, melt spraying or spray drying from a coarse powder or granulate. 17. Method according to claim 16, wherein the method is performed in a device for a layer-wise manufacturing of a three-dimensional object and the treatment of the powder is effected in the device for a layer-wise manufacturing of a three-dimensional object.