Three-dimensional shaped article producing composition, production method for three-dimensional shaped article, and three-dimensional shaped article production apparatus

Patent metadata

Field	Value
Publication number	US-2020061702-A1
Application number	US-201816489290-A
Country	US
Kind code	A1
Filing date	Jan 18, 2018
Priority date	Feb 28, 2017
Publication date	Feb 27, 2020
Grant date	—

Abstract

A three-dimensional shaped article producing composition is provided and contains a plurality of particles, a solvent for dispersing the particles, and nanocellulose.

First claim

1 - 10 . (canceled)

11 . A three-dimensional shaped article producing composition for producing a three-dimensional shaped article, the composition comprising:
a plurality of particles; a solvent for dispersing the particles; and nanocellulose, wherein the solvent contains at least one type selected from the group consisting of propylene glycol, dipropylene glycol, butanediol, and 1,3-butylene glycol.

12 . The three-dimensional shaped article producing composition according to claim 11 , wherein the nanocellulose covers the surfaces of the particles.

13 . The three-dimensional shaped article producing composition according to claim 11 , wherein a content ratio of the nanocellulose is 0.02 vol % or more and 0.42 vol % or less.

14 . The three-dimensional shaped article producing composition according to claim 11 , wherein the particles contain at least one of a metal material and a ceramic material.

15 . A production method for a three-dimensional shaped article, comprising:
repeatedly performing a series of steps including:
a layer forming step of forming a layer using the three-dimensional shaped article producing composition including
a plurality of particles;
a solvent for dispersing the particles; and
nanocellulose, wherein
the solvent contains at least one type selected from the group consisting of propylene glycol, dipropylene glycol, butanediol, and 1,3-butylene glycol, and

a solvent removing step of removing the solvent contained in the layer.

16 . The production method for a three-dimensional shaped article according to claim 15 , wherein
the layer forming step includes a first pattern forming step of forming a first pattern and a second pattern forming step of forming a second pattern, and the three-dimensional shaped article producing composition is used in at least one of the first pattern forming step and the second pattern forming step.

17 . The production method for a three-dimensional shaped article according to claim 15 , including a joining step of performing a joining treatment for joining the particles to one another after repeatedly performing the series of steps.

18 . The production method for a three-dimensional shaped article according to claim 15 , wherein the three-dimensional shaped article producing composition is ejected by a dispenser.

Assignees

• Seiko Epson Corp

Inventors

• Ishida Masaya
• Miyashita Takeshi
• Okamoto Eiji
• Tsunoya Akihiko
• Shima Naoko
• Kato Makoto

Classifications

• B29C64/112

  using individual droplets, e.g. from jetting heads · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• B28B1/30

  by applying the material on to a core or other moulding surface to form a layer thereon (to form a permanent layer B28B19/00) · CPC title

• B33Y40/00

  Auxiliary operations or equipment, e.g. for material handling · CPC title