Resin composition for modeling material, light curing molding ink set, and method for manufacturing optically shaped article

Patent metadata

Field	Value
Publication number	US-11795335-B2
Application number	US-202217701322-A
Country	US
Kind code	B2
Filing date	Mar 22, 2022
Priority date	Sep 15, 2015
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

There is provided a resin composition for a modeling material, used for shaping a modeling material by a manufacturing method for light curing molding using an ink-jet scheme, comprising (A) an ethylenic unsaturated monomer as a photocuring component, (B) a photopolymerization initiator, and (C) a surface adjusting agent, wherein the resin composition for a modeling material has surface tension Mt of 26.0 to 33.0 mN/m, and the resin composition for a modeling material has surface tension Mst represented by the following (i) expression of 33.0 mN/m or more, and this resin composition for a modeling material 4 a can afford a light cured article having the good dimensional accuracy.

First claim

The invention claimed is:

1. A light curing molding ink set used for a manufacturing method for light curing molding using an ink-jet scheme, comprising a combination of a resin composition for a modeling material used for shaping the modeling material, and a resin composition for a supporting material used for shaping the supporting material,
wherein the resin composition for modeling material contains (A) an ethylenic unsaturated monomer as a photocuring component, (B) a photopolymerization initiator, (C) a surface adjusting agent, and (D) an oligomer as a photocuring component, wherein the resin composition for a modeling material has surface tension Mt of 26.0 to 33.0 mN/m, and the resin composition for a modeling material has surface tension Mst represented by the following (i) expression of 33.0 mN/m or more,

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wherein the resin composition for a supporting material contains (E) a water-soluble monofunctional ethylenic unsaturated monomer, (F) polyalkylene glycol comprising an oxyethylene group and/or an oxypropylene group, (B) a photopolymerization initiator, and (C) a surface adjusting agent,
wherein the resin composition for modeling material in an uncured state and the resin composition for supporting material in an uncured state are directly in contact with each other.

2. The ink set according to claim 1 , wherein the (A) component comprises 70 parts by weight or less of a monofunctional ethylenic unsaturated monomer, based on 100 parts by weight of the whole resin composition for a modeling material.

3. The ink set according to claim 2 , wherein the content of the monofunctional ethylenic unsaturated monomer is 5 to 70 parts by weight, based on 100 parts by weight of the whole resin composition for a modeling material.

4. The ink set according to claim 1 , wherein the (A) component comprises 70 parts by weight or less of a polyfunctional ethylenic unsaturated monomer, based on 100 parts by weight of the whole resin composition for a modeling material.

5. The ink set according to claim 2 , wherein the (A) component comprises 70 parts by weight or less of a polyfunctional ethylenic unsaturated monomer, based on 100 parts by weight of the whole resin composition for a modeling material.

6. The ink set according to claim 3 , wherein the (A) component comprises 70 parts by weight or less of a polyfunctional ethylenic unsaturated monomer, based on 100 parts by weight of the whole resin composition for a modeling material.

7. The ink set according to claim 4 , wherein the content of the polyfunctional ethylenic unsaturated monomer is 20 to 70 parts by weight, based on 100 parts by weight of the whole resin composition for a modeling material.

8. The ink set according to claim 5 , wherein the content of the polyfunctional ethylenic unsaturated monomer is 20 to 70 parts by weight, based on 100 parts by weight of the whole resin composition for a modeling material.

9. The ink set according to claim 6 , wherein the content of the polyfunctional ethylenic unsaturated monomer is 20 to 70 parts by weight, based on 100 parts by weight of the whole resin composition for a modeling material.

Assignees

• Maxell Ltd
• Mimaki Eng Co Ltd

Inventors

• Kitou katsuyuki
• Izumo Taeko
• Okawa Masakatsu
• Hongo Kenta

Classifications

• C09D11/101 Primary

  Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing · CPC title

• B29C64/112

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

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B33Y70/00

  Materials specially adapted for additive manufacturing · CPC title

• C08F2/44

  Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers · CPC title