Self-hardening material and process for layerwise formation of models
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-067/00
B29K-033/00
B29K-105/16
출원번호
US-0377137
(2007-08-06)
등록번호
US-9643360
(2017-05-09)
우선권정보
DE-10 2006 038 858 (2006-08-20)
국제출원번호
PCT/DE2007/001372
(2007-08-06)
§371/§102 date
20100618
(20100618)
국제공개번호
WO2008/022615
(2008-02-28)
발명자
/ 주소
Kashani-Shirazi, Kaveh
출원인 / 주소
VOXELJET AG
대리인 / 주소
The Dobrusin Law Firm, P.C.
인용정보
피인용 횟수 :
1인용 특허 :
114
초록▼
The invention relates to a self-hardening material for layerwise construction of three-dimensional components, whereby the material comprises at least one particulate material and a separately applied bonding agent for bonding the particulate material, and has a setting time which is at least severa
The invention relates to a self-hardening material for layerwise construction of three-dimensional components, whereby the material comprises at least one particulate material and a separately applied bonding agent for bonding the particulate material, and has a setting time which is at least several times as long as the application time of a particulate layer.
대표청구항▼
1. A self-hardening material for layerwise construction of three-dimensional components comprising: (i) at least one particulate material;(ii) a bonding agent including a polymerizable monomer for bonding the particulate material; and(iii) a delayer for delaying a polymerization reaction;wherein the
1. A self-hardening material for layerwise construction of three-dimensional components comprising: (i) at least one particulate material;(ii) a bonding agent including a polymerizable monomer for bonding the particulate material; and(iii) a delayer for delaying a polymerization reaction;wherein the bonding agent is separate from the particulate material,wherein the particulate material includes polymethylmethacrylate, polyethylmethacrylate acrylonitrile butadiene styrene (i.e., ABS), polycarbonate-acrylonitrile butadiene styrene (i.e., PC-ABS), polyamide (i.e., PA), polybutylene terephthalate (i.e., PBT), a metal, glass, or carbon fiber,wherein the particulate material includes an initiator and is a loose material suitable for applying in a layerwise fashion,wherein the bonding agent is a printable liquid suitable for applying over the particulate material and is separate from the particulate material, andwherein a setting time of the material is greater than 20 times as long as an application time of a particulate layer. 2. The self-hardening material as per claim 1, wherein the setting time of the material is from greater than 20 times to 150 times as long as the application time of each layer. 3. The self-hardening material as per claim 1, wherein the bonding agent is based on acrylates, methacrylates, or styrols. 4. The self-hardening material as per claim 1, wherein the bonding agent contains a solvent. 5. A multi-layered structure comprising: a first layer of a self-hardening material according to claim 1, anda second layer of a self-hardening material according to claim 1,wherein the first layer and the second layer each include a layer of the one particulate material to which the bonding agent is applied separately,wherein the second layer is applied on top of the first layer while the first layer is not yet hardened, andwherein the first layer and the second layer shrink by the same amount and at the same time. 6. The self-hardening material as per claim 1, wherein the self-hardening material includes an UV active compound. 7. The self-hardening material as per claim 1, wherein the initiator is benzoyl peroxide. 8. The self-hardening material as per claim 1, wherein the bonding agent is a polyurethane resin or epoxy resin. 9. The self-hardening material as per claim 1, wherein the bonding agent contains further ingredients that increase or decrease viscosity and/or surface tension so that printability is improved. 10. The self-hardening material as per claim 4, wherein the particulate material includes a base material that is soluble in the solvent and a filler material that is insoluble in the solvent. 11. The self-hardening material as per claim 10, wherein setting of the bonding agent takes place after formation of the three-dimensional components. 12. The self-hardening material as per claim 11, wherein the three-dimensional components demonstrate uncured setting within 72 hours, and wherein a tension within the three-dimensional components causes curvature of the three-dimensional components. 13. A self-hardening material for layerwise construction of three-dimensional components comprising: a. at least one particulate material;b. a printable bonding agent for bonding the particulate material;c. an initiator; andd. a delayer so that a setting time of the bonding agent is greater than 20 times as long as an application time of a particulate layer, wherein the bonding agent is separate from the particulate material and the particulate material includes the initiator. 14. The self-hardening material as per claim 1, wherein the delayer is benzochinone. 15. The self-hardening material as per claim 13, wherein the particulate material includes a filler, and the bonding agent contains a solvent and a moisture-containing material which slows down volatilisation of the solvent. 16. The self-hardening material as per claim 10, wherein the bonding agent includes a moisture-containing material, and the filler material is a metal powder, a glass, a carbon fiber, or an insoluble polymer. 17. A self-hardening material for layerwise construction of three-dimensional components comprising: (i) at least one particulate material;(ii) a bonding agent, such as a polymerizable monomer, for bonding the particulate material; and(iii) a delayer for delaying a polymerization reaction;wherein the particulate material includes polymethylmethacrylate, polyethylmethacrylate, acrylonitrile butadiene styrene (i.e., ABS), polycarbonate-acrylonitrile butadiene styrene (i.e., PC-ABS), polyamide (i.e., PA), polybutylene terephthalate (i.e., PBT), a metal, glass, or carbon fiber,wherein the bonding agent is based on acrylates, methacrylates, or styrols,wherein the bonding agent contains a solvent and a material which slows down volatilisation of the solvent,wherein the delayer is benzochinone,wherein the initiator is benzoyl peroxide, andwherein the particulate material is a loose material suitable for applying in a layerwise fashion, andwherein the bonding agent is a printable liquid suitable for applying over the particulate material. 18. A multi-layered structure comprising: a first layer of a self-hardening material according to claim 1, anda second layer of a self-hardening material according to claim 1,wherein the first layer and the second layer each include a layer of the one particulate material to which the bonding agent is applied separately,wherein the second layer is applied on top of the first layer when less than 5% of setting of the material and less than 5% of shrinkage of the material occur in the first layer, andwherein the first layer and the second layer shrink by the same amount and at the same time. 19. The self-hardening material according to claim 1, wherein the particulate material includes from 2-100 weight percent PMMA-beads, 0.1 to 5 weight percent benzoyl peroxide; and 5 to 98 weight percent filler; andwherein the binder includes 0 to 75 weight percent styrol monomer, 25 to 100 weight percent hydroxyethylemethacrylate monomer, 0 to 50 weight percent polyethylene glycol-dimethacrylate; 0.5 to 1.5 weight percent N,N′ dimethyl-p-toluidin, and 0.3 weight percent or less p-benzochinone. 20. The self-hardening material according to claim 1, wherein the particulate material includes polyethylmethacrylate, acrylonitrile butadiene styrene (i.e., ABS), polycarbonate-acrylonitrile butadiene styrene (i.e., PC-ABS), polyamide (i.e., PA), polybutylene terephthalate (i.e., PBT), a metal, glass, or carbon fiber. 21. The self-hardening material according to claim 1, wherein the delayer delays a polymerization reaction without dampening the polymerization reaction. 22. A self-hardening material for layerwise construction of three-dimensional components comprising: a. at least one particulate material;b. a printable bonding agent for bonding the particulate material; andc. an initiator; andwherein the initiator is dissolved in grains of the particulate material so that setting of the bonding agent is delayed;wherein a setting time of the bonding agent is greater than 20 times as long as an application time of a particulate layer,wherein the bonding agent is separate from the particulate material. 23. The material of claim 22, wherein the bonding agent includes a combination of different monomers for copolymerization. 24. The material of claim 23, wherein the different monomers include sterol and methylmethacrylate. 25. The material of claim 24, wherein the initiator includes benzoyl peroxide.
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