MATERIAL SYSTEM AND METHOD FOR CHANGING PROPERTIES OF A PLASTIC COMPONENT

• US 20100244301A1
• Filed: 10/01/2008
• Published: 09/30/2010
• Est. Priority Date: 10/11/2007
• Status: Active Grant

• Current Assignee: Voxeljet AG
• Original Assignee: Voxeljet Technology GMBH (Voxeljet AG)
• Inventors: Günther, Johannes Franz, Günther, Daniel, Ederer, Ingo
• Granted Patent: US 8,349,233 B2
• Time in Patent Office: Days
• US Class Current: 264/45.600
• 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 for ABS polymers C08J2355/02; 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. A method for changing characteristics of a plastic component, wherein a medium is introduced into the plastic component, which encompasses a porosity, and the medium forms a homogenous compound with said plastic component by at least partially dissolving it.

20. The method according to claim 1, wherein solidification of the introduced medium takes place by means of polymerization.

21. The method according to claim 1, wherein an outermost layer of the plastic component is solidified in an accelerated manner by means of chemical and/or physical measures as compared to a remaining portion of the plastic component.

22. The method according to claim 21, wherein the accelerated solidification of the outermost layer takes place with the use of two polymerization systems comprising different reaction times.

23. The method according to claim 22, wherein the accelerated solidification of the outermost layer takes place by means of the introduction of high-energy radiation.

24. The method according to claim 23, wherein UV radiation is used as high-energy radiation.

25. The method according to claim 1, wherein the introduction of the medium into the plastic component takes place by means of dipping into a vat of the medium.

26. The method according claim 1, wherein the plastic component is furthermore dipped into a vat comprising an accelerator for hardening the outermost layer.

27. The method according to claim 1, wherein the component is rotated at least in response to the introduction of medium and/or high-energy radiation.

28. The method according to claim 27, wherein the rotation can take place about one or a plurality of axes.

2-19. -19. (canceled)

29. A material system comprising a medium for introduction into a plastic component encompassing a porosity, wherein the medium encompasses at least one substance, which at least partially dissolves the plastic component and which forms a homogenous compound therewith.

30. The material system according to claim 29, wherein the medium is a monomer.

31. The material system according to claim 29, wherein the medium encompasses at least one part, which is from the same substance class as a plastic part of the plastic component.

32. The material system according to claim 29, wherein a provision is further made for a catalyst and/or a wetting agent.

33. The material system according to claim 29, wherein a provision is further made for a photo initiator.

34. The material system according to claim 33, wherein the photo initiator is provided in the medium.

35. The material system according to claim 31, wherein the plastic component and the medium encompass a methacrylate.

36. A use of the material according to claim 31 for infiltrating porous plastic components.

37. The use of the material system according to claim 31 for infiltrating of plastic components, which are produced by means of three-dimensional print processes.