MATERIAL SYSTEM AND METHOD FOR CHANGING PROPERTIES OF A PLACTIC COMPONENT

• US 20130092082A1
• Filed: 12/06/2012
• Published: 04/18/2013
• Est. Priority Date: 10/11/2007
• Status: Abandoned Application

• Current Assignee: Voxeljet AG
• Original Assignee: Voxeljet Technology Ghbh
• Inventors: Ederer, Ingo, Gunther, Daniel, Gunther, Johannes
• Application Number:
  US13/706,756
• Publication Number:
  US 20130092082A1
• Time in Patent Office: Days
• US Class Current: 118/641
• CPC Class Codes: B05C 3/005 incorporating means for heating or cooling the liquid or other fluent material B05C11/1042 takes precedence
• CPC Class Codes: B05C 3/02 the work being immersed in the liquid or other fluent material
• CPC Class Codes: B05C 5/0283 Flat jet coaters, i.e. apparatus in which the liquid or other fluent material is projected from the outlet as a cohesive flat jet in direction of the work
• CPC Class Codes: B29C 71/0009 using liquids, e.g. solvents, swelling agents spectacle cases, e.g. for cleaning contact lenses A45C11/04; disinfecting or sterilising contact lenses A61L12/00, using liquid substances A61L2/20; cleaning involving the use of liquid in general B08B3/00; for hydrating contact lenses B29D11/00067
• 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: B33Y 80/00 Products made by additive manufacturing
• CPC Class Codes: C08J 2351/00 Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
• CPC Class Codes: C08J 7/02 with solvents, e.g. swelling agents
• CPC Class Codes: C08J 7/18 using wave energy or particle radiation
• CPC Class Codes: C08J 9/405 with polymerisable compounds

Abstract

The instant invention relates to a method for changing characteristics of a plastic component, wherein a medium is introduced into the plastic component, which encompasses a porosity and wherein the medium forms a homogenous compound with the plastic component by at least partially dissolving the plastic component.

Claims

1-10. -10. (canceled)

11. A material system comprising at least:

a building platform or an applicator for producing a plastic component, wherein the plastic component has a porosity,

a device for introducing a medium into the plastic component,

a device for solidifying, the medium introduced into the plastic component, and

wherein the medium includes at least one substance, which at least partially dissolves the plastic component and which forms a homogenous compound therewith.

12. The material system according to claim 11, wherein the medium is a monomer.

20. The material system according to claim 11, wherein the device for introducing the medium into the plastic component is device for dip infiltration.

21. The material system according to claim 20, wherein the device for dip infiltration comprises:

a. a dipping vat,

b. a liquid-permeable bracket for dipping of the plastic component the dipping vat,

c. a hold-down device for preventing floating of the plastic component in the dipping vat, and

d. infiltration mixture.

22. The material system according to claim 21, wherein the hold-down device for preventing the floating of the plastic component in the dipping vat is a weight or a retainer clip.

23. The material system according to claim 21, wherein the dipping vat is a container made out of chemically resistant high-grade steel.

24. The material system according to claim 21, wherein the infiltration mixture contains an accelerator.

25. The material system according to claim 21, wherein the liquid-permeable bracket for dipping of the plastic component in the dipping vat is a cage made out of wire.

26. The material system according to claim 21, wherein the dipping vat contains a seal protecting the dipping vat from contamination and radiation ingress.

27. The material system according to claim 20, wherein the device for dip infiltration contains a cooling device.

28. The material system according to claim 11, wherein the device for solidification of the introduced medium into the plastic component comprises:

a. a Ultra Violet (UV) radiation source,

b. a rotary table comprising one or a plurality of degrees of freedom for moving the plastic component, and

c. a bracket to hold the plastic component.

29. The material system according to claim 28, wherein the bracket to hold the plastic component is made out of wires.

30. The material system according to claim 11, wherein the device for introducing a medium into the plastic component contains a jet spray system to apply a wetting agent on to the plastic component and a rotary table to rotate the plastic component

31. The material system according to claim 30, wherein the jet spray system comprises one or a plurality of spray nozzles to generate the wetting agent.

32. The material system according to claim 28, wherein the UV radiation source is one or a plurality of UVA radiation tubes.

13-19. -19. (canceled)

33. The material system according to clam 11, wherein a device for solidification of the introduced medium into the plastic component contains an initiating system.

34. A material system comprising at least:

a building platform or an applicator for producing a plastic component, wherein the plastic component has a porosity;

a device for introducing a medium into the plastic component located downstream of the building platform, so that the plastic component is completed on the building platform and then transported to the device for introducing the medium;

wherein the device for introduction of a medium into the plastic component comprises;

a device for dip infiltration, the device for dip infiltration comprising;

a. a dipping vat,

b. a liquid-permeable bracket for dipping of the plastic component in the dipping vat, and

c. a hold-down device for preventing floating of the plastic component in the dipping vat, and

d. an infiltration mixture;

a device for solidifying the medium introduced into the plastic component,

wherein the device for solidifying the medium introduced into the plastic component comprises;

a. a UV radiation source,

b. a rotary table comprising one or a plurality of degrees of freedom for moving the plastic component, and

c. a bracket to hold the plastic component;

wherein the medium includes at least one substance, which at least partially dissolves the plastic component and which forms a homogenous compound therewith.

35. The material system according to claim 34, wherein the bracket to hold the plastic component is made out of wires.

36. The material system according to claim 35, wherein the hold-down device for preventing the floating of the plastic component in the dipping vat is a weight or a retainer clip.

37. The material system according to claim 36, wherein the plastic component and the medium for introduction into the plastic component are from the same class of chemicals.