Three-dimension formation composition, method of manufacturing three-dimensional structure, and three-dimensional structure

Patent metadata

Field	Value
Publication number	US-2016333153-A1
Application number	US-201515112050-A
Country	US
Kind code	A1
Filing date	Jun 30, 2015
Priority date	Jul 1, 2014
Publication date	Nov 17, 2016
Grant date	—

Abstract

There are provided a method of manufacturing a three-dimensional structure, and three-dimension formation composition, by each which a three-dimensional structure can be manufactured with high dimensional accuracy, and provided a three-dimensional structure manufactured with high dimensional accuracy.
There is provided a method of manufacturing a three-dimensional structure, in which the three-dimensional structure is manufactured by laminating a layer, the method including: forming the layer using a three-dimension formation composition containing particles, a binding resin, and a water-based solvent; removing the water-based solvent from the layer by heating the layer; and applying a binding solution containing a binder to the layer, in which the binding resin has an ammonium salt of a carboxyl group as a functional group.

First claim

1 . A three-dimension formation composition, comprising:
particles; a binding resin; and a water-based solvent, wherein the binding resin has an ammonium salt of a carboxyl group as a functional group.

2 . The three-dimension formation composition according to claim 1 ,
wherein the binding resin contains one or two or more selected from the group consisting of a reaction product of an olefin-maleic anhydride copolymer with ammonia, a polyacrylic acid ammonium salt, an ammonium salt of carboxymethyl cellulose, a polystyrene carboxylic acid ammonium salt, an ammonium salt of an acrylamide-acrylic acid copolymer, and an alginic acid ammonium salt.

3 . The three-dimension formation composition according to claim 1 ,
wherein the weight average molecular weight of the binding resin is 50000 to 200000.

4 . The three-dimension formation composition according to claim 1 ,
wherein the binding resin has a structure of acid anhydride which is formed by heating.

5 . The three-dimension formation composition according to claim 1 ,
wherein the binding resin has a cyclic chemical structure which is formed by heating.

6 . The three-dimension formation composition according to claim 5 ,
wherein the binding resin has a five-membered or six-membered cyclic structure which is formed by heating.

7 . The three-dimension formation composition according to claim 1 ,
wherein the binding resin has an amide group (—CONH 2 ) together with the ammonium salt of a carboxyl group in a molecule.

8 . The three-dimension formation composition according to claim 1 , further comprising:
a compound having an amide group (—CONH 2 ) in addition to the binding resin.

9 . The three-dimension formation composition according to claim 8 ,
wherein the compound having an amide group is polyacrylamide.

10 . A method of manufacturing a three-dimensional structure, in which the three-dimensional structure is manufactured by laminating a layer, the method comprising:
forming the layer using a three-dimension formation composition containing particles, a binding resin, and a water-based solvent; removing the water-based solvent from the layer by heating the layer; and applying a binding solution containing a binder to the layer, wherein the binding resin has an ammonium salt of a carboxyl group as a functional group.

11 . The method of manufacturing a three-dimensional structure according to claim 10 ,
wherein, in the removing of the water-based solvent, the layer is heated to a temperature equal to or higher than the glass transition temperature of the binding resin.

12 . The method of manufacturing a three-dimensional structure according to claim 10 ,
wherein, in the removing of the water-based solvent, the heating temperature is 30 degrees Celsius to 140 degrees Celsius.

13 . The method of manufacturing a three-dimensional structure according to claim 10 , further comprising:
removing the particles, which are not bound by the binder, after repeating the forming of the layer, the removing of the water-based solvent, and the applying of the binding solution, wherein the pH of a removing solution used in the removing of the unbound particles is 9 or more.

14 . The method of manufacturing a three-dimensional structure according to claim 10 , further comprising:
removing the particles, which are not bound by the binder, after repeating the forming of the layer, the removing of the water-based solvent, and the applying of the binding solution, wherein, in the removing of the unbound particles, ammonia is used.

15 . A three-dimensional structure, which is manufactured by the method of manufacturing a three-dimensional structure according to claim 10 .

Assignees

• Seiko Epson Corp

Inventors

• Hirata Koki
• Fukumoto Hiroshi
• Kato Shinichi
• Sato Chigusa

Classifications

• C08J3/005

  Processes for mixing polymers · CPC title

• C08J3/203

  Solid polymers with solid and/or liquid additives · CPC title

• C08J2325/08

  Copolymers of styrene (C08J2329/08, C08J2335/06, C08J2355/02 take precedence) · CPC title

• C08J2307/00

  Characterised by the use of natural rubber · CPC title

• C08J2429/04

  Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids · CPC title