METHOD FOR MANUFACTURING A THREE-DIMENSIONAL OBJECT USING A NITRIDE

1 . A method for manufacturing a three-dimensional (3D) object with an additive manufacturing system, comprising extruding a part material to print layers of the 3D object, wherein the part material comprises, based on the total weight of the part material:

from 50 to 99 wt. % of a polymeric material comprising at least one poly(aryl ether ketone) polymer (PAEK), and optionally at least one poly(biphenyl ether sulfone) polymer (PPSU) and/or at least one poly(ether imide) polymer (PEI), and

at least one nitride (N).

2 . The method of claim 1 , wherein the part material comprises at least 1 wt. % of at least one nitride (N), based on the total weight of the part material.

3 . The method of claim 1 , wherein the part material comprises less than 10 wt. % of at least one nitride (N), based on the total weight of the part material.

4 . The method of claim 1 , wherein the part material further comprises up to 45 wt. %, based on the total weight of the part material, of at least one additive selected from the group consisting of fillers, colorants, lubricants, plasticizers, flame retardants, nucleating agents, flow enhancers and stabilizers.

5 . The method of claim 1 , wherein the part material comprises at least 80 wt. %, based on the total weight of the part material, of the polymeric material selected from the group consisting of:

PAEK,

a blend of PAEK and PPSU,

a blend of PAEK and PEI, and

a blend of PAEK, PPSU and PEI.

6 . The method of claim 1 , wherein the PAEK is a poly(ether ether ketone) (PEEK).

7 . The method of claim 1 , wherein the part material is in the form of a filament having a cylindrical geometry and a diameter comprised between 0.5 and 5 mm±0.2 mm.

8 . A filament material having a cylindrical geometry and a diameter comprised between 0.5 and 5 mm±0.2 mm, comprising:

from 50 to 99 wt. % of at least one poly(aryl ether ketone) polymer (PAEK), and optionally at least one poly(biphenyl ether sulfone) polymer (PPSU) and/or at least one poly(ether imide) polymer (PEI),

at least one nitride (N).

9 . (canceled)

10 . (canceled)

11 . A method for the manufacture of the filament of claim 8 to be used in the manufacture of three-dimensional objects, said filament having a cylindrical geometry and a diameter comprised between 0.5 and 5 mm±0.2 mm, comprising:

using a part material comprising:

from 50 to 99 wt. % of a polymeric material comprising at least one poly(aryl ether ketone) polymer (PAEK), and optionally at least one poly(biphenyl ether sulfone) polymer (PPSU) and/or at least one poly(ether imide) polymer (PEI),

at least one nitride (N).

12 . A three-dimensional (3D) object obtained by the process of claim 1 by extrusion of a part material in form of a filament comprising:

from 50 to 99 wt. % of a polymeric material comprising at least one poly(aryl ether ketone) polymer (PAEK), and optionally at least one poly(biphenyl ether sulfone) polymer (PPSU) and/or at least one poly(ether imide) polymer (PEI),

at least one nitride (N).

13 . (canceled)

14 . The method of claim 1 , wherein the part material comprises boron nitride.

15 . The method of claim 1 , wherein the part material is in the form of a filament having a cylindrical geometry and a diameter comprised between 1 and 3.5 mm±0.15 mm.

16 . The filament material of claim 8 , having a cylindrical geometry and a diameter comprised between 1 and 3.5 mm±0.15 mm.

17 . The filament material of claim 8 , wherein the at least one nitride (N) comprises boron nitride.

18 . The filament material of claim 8 , comprising at least 80 wt. %, based on the total weight of the filament material, of the polymeric material selected from the group consisting of:

PAEK,

a blend of PAEK and PPSU,

a blend of PAEK and PEI, and

a blend of PAEK, PPSU and PEI.