METHOD FOR THE LAYERED CONSTRUCTION OF PLASTIC MODELS

• US 20110223437A1
• Filed: 11/02/2009
• Published: 09/15/2011
• Est. Priority Date: 11/20/2008
• Status: Active Grant

• Current Assignee: Voxeljet AG
• Original Assignee: Voxeljet Technology GMBH (Voxeljet AG)
• Inventors: Gunther, Johannes, Gnuchtel, Ingo, Gunther, Daniel, Ederer, Ingo
• Granted Patent: US 8,715,832 B2
• Time in Patent Office: Days
• US Class Current: 428/500
• CPC Class Codes: B29C 64/165 using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
• CPC Class Codes: B33Y 10/00 Processes of additive manufacturing
• CPC Class Codes: B33Y 70/00 Materials specially adapted for additive manufacturing
• CPC Class Codes: Y10T 428/254 Polymeric or resinous material
• CPC Class Codes: Y10T 428/31504 Composite [nonstructural laminate]
• CPC Class Codes: Y10T 428/31855 Of addition polymer from unsaturated monomers

Abstract

The invention relates to a method for implementing layered construction of plastic models, whereby a first material is applied to a building platform and thereupon a second material is selectively applied and these two application steps are respectively repeated layer after layer until the desired model is obtained. The two materials form a solid body when a suitable mixture ratio is used. The first material includes a particle material and the second material is applied via a print head and contains N-vinylformamide.

Claims

1. A method for implementing layered construction of plastic models, whereby a first material is applied to a building platform and thereupon a second material is selectively applied and these two application steps are repeated until the desired model is obtained, the two materials form a solid body when a suitable mixture ratio is used, the first material represents a particle material and the second material is applied via a print head and contains N-vinylformamide.

2. A method according to claim 1, whereby a PMMA-containing particle material is used as the first material.

3. A method according to claim 1, wherein the particle material has an initiator and/or a crosslinking agent and/or a catalyst.

4. A method according to claim 1, wherein N-vinylformamide is the main component of the second material.

5. A method according to claim 1, wherein the second material additionally has an initiator, catalyst, or/and crosslinking agent.

10. A method according to claim 2 wherein, the particle material has an initiator and/or a crosslinking agent and/or a catalyst.

11. A method according to claim 2, wherein N-vinylformamide is the main component of the second material.

12. A method according to claim 3, wherein N-vinylformamide is the main component of the second material.

13. A method according to claim 2, wherein the second material additionally has an initiator, catalyst, or/and crosslinking agent.

14. A method according to claim 3, wherein the second material additionally has an initiator, catalyst, or/and crosslinking agent.

15. A method according to claim 4, wherein the second material additionally has an initiator, catalyst, or/and crosslinking agent.

6. (canceled)

7. (canceled)

8. (canceled)

9. (canceled)

16. A plastic model comprising:

a. one or more layers of a particle material and

b. one or more layers of N-vinylformamide

wherein the particle material is applied to a building platform in layers and the N-vinylformamide is selectively applied via a print head to the particle material;

wherein the particle material and the N-vinylformamide are applied until the desired plastic model is obtained.

17. The plastic model of claim 16, wherein the particle material includes PMMA.

18. The plastic model of claim 16, further including an initiator and/or a crosslinking agent and/or a catalyst can be applied by a print head.

19. The plastic model of claim 17, further including an initiator and/or a crosslinking agent and/or a catalyst can be applied by a print head.