Resin composition for modeling material, resin composition for supporting material, photofabrication product, and process for producing photofabrication product

Patent metadata

Field	Value
Publication number	US-11485067-B2
Application number	US-201615748082-A
Country	US
Kind code	B2
Filing date	Jul 27, 2016
Priority date	Jul 29, 2015
Publication date	Nov 1, 2022
Grant date	Nov 1, 2022

Abstract

A resin composition for a modeling material for use in shaping a modeling material (4) by an ink-jet photofabrication method, the resin composition comprising, based on 100 parts by weight of the whole resin composition, 19 to 49 parts by weight of a water-insoluble monofunctional ethylenically unsaturated monomer (A), 15 to 50 parts by weight of a di- or more-functional polyfunctional ethylenically unsaturated monomer (B), 10 to 45 parts by weight of an oligomer (C), and a photopolymerization initiator (D). By this resin composition for a modeling material, a photofabrication product having good dimensional accuracy can be obtained.

First claim

The invention claimed is:

1. A resin composition for a modeling material for use in shaping a modeling material by an ink-jet photofabrication method, the resin composition comprising, based on 100 parts by weight of the whole resin composition:
19 to 49 parts by weight of a water-insoluble monofunctional ethylenically unsaturated monomer (A), wherein the water-insoluble monofunctional ethylenically unsaturated monomer (A) comprises isobornyl (meth)acrylate;
15 to 50 parts by weight of a di- or more-functional polyfunctional ethylenically unsaturated monomer (B);
10 to 45 parts by weight of an oligomer (C), wherein the oligomer (C) is one or more selected from the group consisting of a urethane (meth)acrylate oligomer, an epoxy (meth)acrylate oligomer, and a polyester (meth)acrylate oligomer; and
5 to 15 parts by weight of a photopolymerization initiator (D).

2. The resin composition for a modeling material according to claim 1 , wherein the content of the (A) ingredient is 25 to 47 parts by weight, based on 100 parts by weight of the whole resin composition.

3. The resin composition for a modeling material according to claim 1 , wherein the content of the (B) ingredient is 20 to 45 parts by weight, based on 100 parts by weight of the whole resin composition.

4. The resin composition for a modeling material according to claim 1 , wherein the content of the (C) ingredient is 15 to 30 parts by weight, based on 100 parts by weight of the whole resin composition.

5. The resin composition for a modeling material according to claim 1 , wherein the resin composition further comprises a preservation stabilizer (F) at 0.05 to 3.0 parts by weight, based on 100 parts by weight of the whole resin composition.

6. A resin composition for a supporting material for use in shaping a supporting material by an ink-jet photofabrication method, the resin composition comprising, based on 100 parts by weight of the whole resin composition:
20 to 50 parts by weight of a water-soluble monofunctional ethylenically unsaturated monomer (G);
20 to 49 parts by weight of polyalkylene glycol (H) comprising an oxyethylene group and/or an oxypropylene group;
35 parts by weight or less of a water-soluble organic solvent (I); and
a photopolymerization initiator (D).

7. The resin composition for a supporting material according to claim 6 , wherein the content of the (G) ingredient is 25 to 45 parts by weight, based on 100 parts by weight of the whole resin composition.

8. The resin composition for a supporting material according to claim 6 , wherein the content of the (H) ingredient is 25 to 45 parts by weight, based on 100 parts by weight of the whole resin composition.

9. The resin composition for a supporting material according to claim 6 , wherein the content of the (D) ingredient is 5 to 20 parts by weight, based on 100 parts by weight of the whole resin composition.

10. The resin composition for a supporting material according to claim 6 , wherein the content of the (I) ingredient is 5 parts by weight or more, based on 100 parts by weight of the whole resin composition.

11. The resin composition for a supporting material according to claim 6 , wherein the resin composition further comprises a preservation stabilizer (F) at 0.05 to 3.0 parts by weight, based on 100 parts by weight of the whole resin composition.

12. A photofabrication product comprising a modeling material which is obtained by photocuring a resin composition for a modeling material according to claim 1 , by an ink-jet photofabrication method.

13. The resin composition for a modeling material according to claim 1 , wherein the resin composition has a viscosity of 70 mPa·s or less at 25° C.

14. The resin composition for a modeling material according to claim 1 , wherein the content of the (C) ingredient is 10 to 30 parts by weight, based on 100 parts by weight of the whole resin composition.

Assignees

• Maxell Ltd
• Mimaki Eng Co Ltd

Inventors

• Kitou katsuyuki
• Izumo Taeko

Classifications

• C08L33/08

  Homopolymers or copolymers of acrylic acid esters · CPC title

• B29C64/264

  Arrangements for irradiation · CPC title

• B29C64/245

  Platforms or substrates (support structures intended to be sacrificed after manufacture B29C64/40) · CPC title

• C08F290/06

  Polymers provided for in subclass C08G · CPC title

• C08L2205/03

  containing three or more polymers in a blend · CPC title