Powder material for three dimensional modeling, kit for three dimensional modeling, green body for three dimensional modeling, method of manufacturing three dimensional object, method of manufacturing three-dimensional green body, device for manufacturing three-dimensional object, and device for manufacturing three-dimensional green body

Patent metadata

Field	Value
Publication number	US-9873228-B2
Application number	US-201615065316-A
Country	US
Kind code	B2
Filing date	Mar 9, 2016
Priority date	Mar 18, 2015
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

A powder material for three-dimensional modeling includes a base particle and a resin covering the base particle, wherein the resin has a first absorption peak in the range of from 1,141 cm −1 to 1,145 cm −1 and a second absorption peak in the range of from 1,089 cm −1 to 1,093 cm −1 in an infrared absorption spectrum and the intensity ratio of the first absorption peak to the second absorption peak is from 0.40 to 0.70.

First claim

What is claimed is:

1. A powder material for three-dimensional modeling comprising:
a base particle; and
a resin covering the base particle,
wherein the powder material is used for three-dimensional modeling and the resin has a first absorption peak in a range of from 1,141 cm −1 to 1,145 cm −1 and a second absorption peak in a range of from 1,089 cm −1 to 1,093 cm −1 in an infrared absorption spectrum and an intensity ratio of the first absorption peak to the second absorption peak is from 0.40 to 0.70.

2. The powder material according to claim 1 , wherein the base particle includes metal or ceramic.

3. The powder material according to claim 1 , wherein the resin includes a modified polyvinyl alcohol having an acetoacetyl group, a carbonyl group, or a butanediol group.

4. The powder material according to claim 3 , wherein the resin has a degree of average polymerization of from 400 to 1,100.

5. The powder material according to claim 1 , wherein a coverage thickness of the base particle by the resin is from 30 nm to 500 nm.

6. A kit for three-dimensional modeling comprising:
the powder material of claim 1 ; and
a modeling liquid including a solvent configured to dissolve the resin.

7. The kit according to claim 6 , wherein the modeling liquid includes a cross-linking agent to cross-link with the resin.

8. A method of manufacturing a three-dimensional object comprising:
forming a layer of the powder material of claim 1 on a substrate,
applying a modeling liquid including a solvent configured to dissolve the resin to an area of the layer; and
repeating the forming and the applying to manufacture the three-dimensional object.

9. The method of manufacturing a three-dimensional object according to claim 8 , wherein the modeling liquid is applied according to an inkjet discharging method.

10. A device for manufacturing a three-dimensional object comprising:
a powder material layer forming device configured to form a layer of the powder material of claim 1 on a substrate; and
a modeling liquid applying device configured to apply a modeling liquid including a solvent to dissolve the resin.

11. A three-dimensional green body comprising:
a base material; and
a resin,
wherein the three-dimensional green body is used for three-dimensional modeling and the resin has a first absorption peak in a range of from 1,141 cm −1 to 1,145 cm −1 and a second absorption peak in a range of from 1,089 cm −1 to 1,093 cm −1 in an infrared absorption spectrum and an intensity ratio of the first absorption peak to the second absorption peak is from 0.55 to 0.80.

12. A method of manufacturing the three-dimensional green body of claim 11 ;
forming a layer of a powder material for three-dimensional modeling on a substrate, the powder material including the base material and the resin from;
applying a modeling liquid to an area of the layer, the modeling liquid including a solvent to dissolve the resin; and
repeating the forming and the applying to manufacture the three-dimensional green body.

13. A device for manufacturing the green body of claim 11 comprising:
a powder material layer forming device to form a layer of a powder material for three-dimensional modeling on a substrate, the powder material including the base material and the resin from; and
a modeling liquid applying device to apply a modeling liquid to an area of the layer, the modeling liquid including a solvent to dissolve the resin.

Assignees

• Suzuki Yasuo
• Naruse Mitsuru
• Iwatsuki Hitoshi
• Tamoto Nozomu
• Ohtaki Kazumi
• Yamashita Yasuyuki
• Ricoh Co Ltd

Inventors

• Suzuki Yasuo
• Naruse Mitsuru
• Iwatsuki Hitoshi
• Tamoto Nozomu
• Ohtaki Kazumi
• Yamashita Yasuyuki

Classifications

• B22F2999/00

  Aspects linked to processes or compositions used in powder metallurgy · CPC title

• B29C64/165 Primary

  using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber · CPC title

• B28B1/001

  Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material (selective deposition modelling of metallic powder B22F10/00; rapid manufacturing of 3D objects in general and in particular of plastics B29C64/00) · CPC title

• C04B35/63416

  Polyvinylalcohols [PVA]; Polyvinylacetates · CPC title

• C04B35/62897

  Coatings characterised by their thickness · CPC title