Decomposing polymer binders for additive manufacturing feedstock
US-2018162048-A1 · Jun 14, 2018 · US
Paste and method for producing three-dimensional shaped article
US2018250877A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018250877-A1 |
| Application number | US-201815911589-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 5, 2018 |
| Priority date | Mar 6, 2017 |
| Publication date | Sep 6, 2018 |
| Grant date | — |
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Abstract
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There is provided a paste for use in producing a three-dimensional shaped article, the paste containing a solvent, a binder that is soluble in the solvent, support layer forming first particles, and a material having a decomposition temperature lower than a sintering temperature of the support layer forming first particles, in which the material is contained in a volume of greater than or equal to 20% and less than or equal to 60% with respect to a total volume of the support layer forming first particles and the material being 100%. By using such a paste, a highly accurate three-dimensional shaped article can be produced.
First claim
Opening claim text (preview).
What is claimed is: 1 . A three-dimensional shaping paste for use in producing a three-dimensional shaped article, comprising: a solvent; a binder that is soluble in the solvent; support layer forming first particles; and a material having a decomposition temperature lower than a sintering temperature of the support layer forming first particles, wherein the material is contained in a volume of greater than or equal to 20% and less than or equal to 60% with respect to a total volume of the support layer forming first particles and the material being 100%. 2 . The three-dimensional shaping paste according to claim 1 , wherein the material is a resin. 3 . The three-dimensional shaping paste according to claim 1 , wherein the material is particles, and an average particle diameter of the particles is greater than or equal to an average particle diameter of the support layer forming first particles. 4 . A method for producing a three-dimensional shaped article, comprising: forming a constituent layer corresponding to a constituent region of the three-dimensional shaped article; forming a support layer that is in contact with the constituent layer and supports the constituent layer; and sintering the constituent layer, wherein in the forming of the support layer, the support layer is formed by using a paste that contains a solvent, a binder that is soluble in the solvent, support layer forming first particles, and resin particles having a decomposition temperature lower than a sintering temperature of the support layer forming first particles, in which the material of the resin particles is contained in a volume of greater than or equal to 20% and less than or equal to 60% with respect to a total volume of the support layer forming first particles and the resin particles being 100%, and the sintering temperature in the sintering is lower than the sintering temperature of the support layer forming first particles and higher than the decomposition temperature of the resin particles. 5 . The method for producing a three-dimensional shaped article according to claim 4 , wherein an average particle diameter of the resin particles is greater than or equal to an average particle diameter of the support layer forming first particles. 6 . The method for producing a three-dimensional shaped article according to claim 4 , wherein in the forming of the support layer, plural types of pastes are used, the pastes being different from each other in terms of at least one of a content ratio of the resin particles to the support layer forming first particles and an average particle diameter of the resin particles. 7 . A paste comprising: a solvent; a binder that is soluble in the solvent; first particles; and a material having a decomposition temperature lower than a sintering temperature of the first particles, wherein the material is contained in a volume of greater than or equal to 20% and less than or equal to 60% with respect to a total volume of the first particles and the material being 100%.
Assignees
Inventors
Classifications
Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof · CPC title
Polyacrylates; Polymethacrylates · CPC title
micrometer sized, i.e. from 1 to 100 micron · CPC title
Fine ceramics · CPC title
Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products · CPC title
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- What does patent US2018250877A1 cover?
- There is provided a paste for use in producing a three-dimensional shaped article, the paste containing a solvent, a binder that is soluble in the solvent, support layer forming first particles, and a material having a decomposition temperature lower than a sintering temperature of the support layer forming first particles, in which the material is contained in a volume of greater than or equal…
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification B29C64/165. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Sep 06 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).