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1. (WO2016112283) COMPOSITIONS DE POUDRE POUR FRITTAGE LASER
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

What we claim is:

1. A polymer powder composition particularly adapted for use in laser sintering comprising a nylon copolymer containing at least one aromatic component and at least one aliphatic component.

2. The polymer powder composition of claim 1, wherein the aliphatic

component comprises a C4 to C12 diamine reacted with a C4 to C18 diacid.

3. The polymer powder composition of claim 1 wherein the aromatic

component comprises one or more phthalic acid, diphenic acid, and/or aromatic diamine.

4. The polymer powder composition of claim 3 wherein the phthalic acid

comprises isophthalic acid and/or isophthalic acid.

5. The polymer powder composition of claim 3 wherein the aromatic diamine comprises xylenediamine and/or phenylene diamine.

6. The polymer powder composition of claim 1, wherein the aliphatic

component is present in an amount of about 75 mole % to about 95 mole % and the aromatic component is present in an amount of about 5 mole % to about 25 mole %.

7. The polymer powder composition of claim 1, wherein the aliphatic

component comprises nylon 6, nylon 610 and/or nylon 612.

8. The polymer powder composition of claim 7, wherein the aliphatic

component comprises nylon 612 present in an amount of about 75 mole % to about 90 mole , and the aromatic component comprises isophthalic acid present in an amount of about 0.5 mole % to about 4.5 mole % and terephthalic acid present in an amount of about 9 mole % to about 22 mole .

9. The polymer powder composition of claim 8, wherein the nylon 612 is

present in an amount of about 80 mole , and the isophthalic acid is present in an amount of about 2 mole % and terephthalic acid present in an amount of about 18 mole %.

10. The polymer powder composition of claim 7, wherein the aliphatic

component comprises nylon 610 present in an amount of about 75 mole % to about 90 mole , and the aromatic component comprises isophthalic acid present in an amount of about 0.5 mole % to about 4.5 mole % and terephthalic acid present in an amount of about 9 mole % to about 22 mole .

11. The polymer powder composition of claim 10, wherein the nylon 610 is

present in an amount of about 80 mole , and the isophthalic acid is present in an amount of about 2 mole % and terephthalic acid present in an amount of about 18 mole %.

12. The polymer powder composition of claim 7, wherein the aliphatic nylon component comprises nylon 6 present in an amount of about 80 mole % to about 95 mole , and the aromatic component comprises isophthalic acid present in an amount of about 0.5 mole % to about 4.5 mole % and terephthalic acid present in an amount of about 4 mole % to about 19 mole .

13. The polymer powder of composition claim 12, wherein the nylon 6 is present in an amount of about 85 mole , and the isophthalic acid is present in an amount of about 1.5 mole % and terephthalic acid present in an amount of about 13.5 mole %.

14. The polymer powder of composition claim 1, wherein the aliphatic

component is bio-based.

15. A polymer powder composition particularly adapted for use in laser sintering comprising a first aliphatic nylon copolymerized with a second aliphatic nylon, and additionally containing unreacted cylic monomer.

16. The polymer powder composition of claim 15, wherein the unreacted cyclic monomer comprises caprolactam or laurolactam.

17. The polymer powder composition of claim 15, wherein the first aliphatic nylon comprises nylon 6 and/or nylon 12.

18. The polymer powder composition of claim 15, wherein the first aliphatic nylon comprises nylon 6 and the unreacted cyclic monomer comprises caprolactam.

19. The polymer powder composition of claim 15, wherein the second aliphatic nylon comprises nylon 66 and/or nylon 69.

20. The polymer powder composition of claim 15, wherein the unreacted cyclic monoer is present in an amount of about 3 mole % to about 9 mole %.

21. The polymer powder composition of claim 15, wherein the unreacted cyclic monomer is present in an amount of about 4 mole % to about 7 mole %.

22. The polymer powder composition of claim 15, wherein the unreacted cyclic monomer is present in an amount of about 6 mole % to about 7 mole %.

23. The polymer powder composition of claim 15, wherein the first aliphatic nylon is present in an amount of about 70 mole % to about 90 mole % and the second aliphatic nylon is present in an amount of about 10 mole % to about 30 mole %.

24. The polymer powder composition of claim 1 additionally containing a heat stabilizer comprising copper halide and/or phosphorous antioxidant.

25. A method of making a 3D laser sintered part using the powder composition of claim 1.

AMENDED CLAIMS

received by the International Bureau on 09 May 2016 (09.05.16)

What we claim is:

1. A polymer powder composition particularly adapted for use in laser sintering comprising a nylon copolymer containing at least one aromatic component and at least one aliphatic component.

2. The polymer powder composition of claim 1, wherein the aliphatic

component comprises a C to C12 diamine reacted with a C4 to C18 diacid.

3. The polymer powder composition of claim 1 wherein the aromatic

component comprises one or more phthalic acid, diphenic acid, and/or aromatic diamine.

4. The polymer powder composition of claim 3 wherein the phthalic acid

comprises isophthalic acid and/or isophthalic acid.

5. The polymer powder composition of claim 3 wherein the aromatic diamine comprises xylenediamine and/or phenylene diamine.

6. The polymer powder composition of claim 1, wherein the aliphatic

component is present in an amount of about 75 mole % to about 95 mole % and the aromatic component is present in an amount of about 5 mole % to about 25 mole %.

7. The polymer powder composition of claim 1 , wherein the aliphatic

component comprises nylon 6, nylon 610 and/or nylon 612.

8. The polymer powder composition of claim 7, wherein the aliphatic

component comprises nylon 612 present in an amount of about 75 mole % to about 90 mole %, and the aromatic component comprises isophthalic acid present in an amount of about 0.5 mole % to about 4.5 mole % and terephthalic acid present in an amount of about 9 mole % to about 22 mole %.

9. The polymer powder composition of claim 8, wherein the nylon 612 is

present in an amount of about 80 mole %, and the isophthalic acid is present

AMENDED SHEET (ARTICLE 9)

in an amount of about 2 mole % and terephthalic acid present in an amount of about 18 mole %.

10. The polymer powder composition of claim 7, wherein the aliphatic

component comprises nylon 610 present in an amount of about 75 mole % to about 90 mole %, and the aromatic component comprises isophthahc acid present in an amount of about 0.5 mole % to about 4.5 mole % and terephthalic acid present in an amount of about 9 mole % to about 22 mole %.

11. The polymer powder composition of claim 10, wherein the nylon 610 is present in an amount of about 80 mole %, and the isophthahc acid is present in an amount of about 2 mole % and terephthalic acid present in an amount of about 18 mole %.

12. The polymer powder composition of claim 7, wherein the aliphatic nylon component comprises nylon 6 present in an amount of about 80 mole % to about 95 mole %, and the aromatic component comprises isophthahc acid present in an amount of about 0.5 mole % to about 4.5 mole % and terephthalic acid present in an amount of about 4 mole % to about 19 mole %.

13. The polymer powder of composition claim 12, wherein the nylon 6 is present in an amount of about 85 mole %, and the isophthahc acid is present in an amount of about 1.5 mole % and terephthalic acid present in an amount of about 13.5 mole %.

14. The polymer powder of composition claim 1 , wherein the aliphatic

component is bio-based.

15. A polymer powder composition particularly adapted for use in laser sintering comprising a first aliphatic nylon copolymerized with a second aliphatic nylon, and additionally containing unreacted cyclic monomer.

16. The polymer powder composition of claim 15, wherein the unreacted cyclic monomer comprises caprolactam or laurolactam.

17. The polymer powder composition of claim 15, wherein the first aliphatic nylon comprises nylon 6 and/or nylon 12.

AMENDED SHEET (ARTICLE 19)

18. The polymer powder composition of claim 15, wherein the first aliphatic nylon comprises nylon 6 and the unreacted cyclic monomer comprises caprolactam.

19. The polymer powder composition of claim 15, wherein the second aliphatic nylon comprises nylon 66 and/or nylon 69.

20. The polymer powder composition of claim 15, wherein the unreacted cyclic monomer is present in an amount of about 3 mole % to about 9 mole %.

21. he polymer powder composition of claim 15, wherein the unreacted cyclic monomer is present in an amount of about 4 mole % to about 7 mole %.

22. The polymer powder composition of claim 15, wherein the unreacted cyclic monomer is present in an amount of about 6 mole % to about 7 mole %.

23. The polymer powder composition of claim 15, wherein the first aliphatic nylon is present in an amount of about 70 mole % to about 90 mole % and the second aliphatic nylon is present in an amount of about 10 mole % to about 30 mole %.

24. The polymer powder composition of claim 1 additionally containing a heat stabilizer comprising copper halide and/or phosphorous antioxidant.

25. A method of making a 3D laser sintered part using the powder composition of claim 1.

AMENDED SHEET (ARTICLE 19)