Composition set, shaped article production method, and shaped article

Patent metadata

Field	Value
Publication number	US-2016289481-A1
Application number	US-201615060371-A
Country	US
Kind code	A1
Filing date	Mar 3, 2016
Priority date	Mar 30, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

A composition set according to the invention includes a first composition which contains a cellulose derivative having a liquid crystalline functional group, and a second composition which contains a liquid crystalline compound having a reactive functional group and can be in a liquid state. The first composition preferably contains particles whose surfaces are at least partially constituted by the cellulose derivative. Further, the first composition preferably contains a liquid component which functions as a dispersion medium for dispersing the particles.

First claim

What is claimed is:

1 . A composition set, comprising:
a first composition which contains a cellulose derivative having a liquid crystalline functional group; and a second composition which contains a liquid crystalline compound having a reactive functional group and can be in a liquid state.

2 . The composition set according to claim 1 , wherein the first composition contains particles whose surfaces are at least partially constituted by the cellulose derivative.

3 . The composition set according to claim 2 , wherein the first composition contains a liquid component which functions as a dispersion medium for dispersing the particles.

4 . The composition set according to claim 2 , wherein the particles have an average particle diameter of 1 μm or more and 25 μm or less.

5 . The composition set according to claim 1 , wherein the second composition does not contain a liquid component other than the liquid crystalline compound.

6 . The composition set according to claim 1 , wherein the reactive functional group contains a carbon-carbon double bond.

7 . The composition set according to claim 6 , wherein the reactive functional group is a (meth)acryloyl group.

8 . The composition set according to claim 1 , wherein the cellulose derivative has the liquid crystalline functional group introduced into a repeating unit of a polymer chain having a repeating structure introduced into a cellulose backbone structure.

9 . The composition set according to claim 1 , wherein a chemical reaction involving the reactive functional group of the liquid crystalline compound proceeds by UV irradiation.

10 . A shaped article production method, comprising producing a shaped article using the composition set according to claim 1 .

11 . A shaped article production method, comprising producing a shaped article using the composition set according to claim 2 .

12 . A shaped article production method, comprising:
bringing a first composition which contains a cellulose derivative having a liquid crystalline functional group and a second composition which is in a liquid state and contains a liquid crystalline compound having a reactive functional group into contact with each other; and allowing a chemical reaction involving the reactive functional group of the liquid crystalline compound to proceed.

13 . A shaped article production method, which is a method for producing a three-dimensional shaped article by performing a layer forming step of forming a layer a plurality of times and stacking the layers, comprising:
applying a first composition which contains a cellulose derivative having a liquid crystalline functional group and a second composition which is in a liquid state and contains a liquid crystalline compound having a reactive functional group to a region where the three-dimensional shaped article is to be formed so that the first composition and the second composition come in contact with each other; and allowing a chemical reaction involving the reactive functional group of the liquid crystalline compound to proceed.

14 . A shaped article production method, which is a method for producing a three-dimensional shaped article by stacking layers, comprising:
a layer forming step of forming the layer using a first composition which contains a plurality of particles constituted by a material containing a cellulose derivative having a liquid crystalline functional group; a second composition application step of applying a second composition which is in a liquid state and contains a liquid crystalline compound having a reactive functional group to the layer; and a solidification step of solidifying the second composition by allowing a chemical reaction involving the reactive functional group of the liquid crystalline compound to proceed.

15 . The shaped article production method according to claim 13 , wherein the application of the second composition is performed by an inkjet method.

16 . The shaped article production method according to claim 10 , wherein the first composition and the second composition are applied onto a member having been subjected to an alignment treatment.

17 . A shaped article, which is produced using the composition set according to claim 1 .

18 . A shaped article, which is produced using the composition set according to claim 1 .

19 . A shaped article, which is produced using the production method according to claim 10 .

20 . The shaped article according to claim 16 , wherein the shaped article is a stent.

Assignees

• Seiko Epson Corp

Inventors

• Otake Toshihiro

Classifications

• B29K2105/0079

  Liquid crystals · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• C09D11/30

  Inkjet printing inks · CPC title

• C09D11/107

  from unsaturated acids or derivatives thereof · CPC title