THREE-DIMENSIONAL MODELING COMPOSITION SET AND THREE-DIMENSIONAL MODELING METHOD

• US 20200131291A1
• Filed: 10/30/2019
• Published: 04/30/2020
• Est. Priority Date: 10/31/2018
• Status: Active Application

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: SATO, Chigusa, HIRATA, Koki, NAMIKOSHI, Shohei, ISHIDA, Masaya
• Application Number:
  US16/668,057
• Publication Number:
  US 20200131291A1
• Time in Patent Office: Days
• CPC Class Codes: B22F 10/22 Direct deposition of molten metal
• CPC Class Codes: B22F 10/40 Structures for supporting workpieces or articles during manufacture and removed afterwards
• CPC Class Codes: B22F 10/62 by chemical means
• CPC Class Codes: B22F 10/66 by mechanical means
• CPC Class Codes: B29C 64/112 using individual droplets, e.g. from jetting heads
• CPC Class Codes: B29C 64/40 Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
• CPC Class Codes: B29K 2033/04 Polymers of esters
• CPC Class Codes: B33Y 10/00 Processes of additive manufacturing
• CPC Class Codes: B33Y 40/20 Post-treatment, e.g. curing, coating or polishing
• CPC Class Codes: B33Y 70/00 Materials specially adapted for additive manufacturing
• CPC Class Codes: C08F 220/281 and containing only one oxygen, e.g. furfuryl (meth)acrylate or 2-methoxyethyl (meth)acrylate
• CPC Class Codes: C08F 220/282 and containing two or more oxygen atoms
• CPC Class Codes: C08F 220/285 and containing a polyether chain in the alcohol moiety
• CPC Class Codes: C08F 220/301 and one oxygen in the alcohol moiety
• CPC Class Codes: C08F 220/325 containing glycidyl radical, e.g. glycidyl (meth)acrylate
• CPC Class Codes: C08F 220/40 Esters of unsaturated alcohols , e.g. allyl (meth)acrylate
• CPC Class Codes: C08F 220/54 Amides , e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
• CPC Class Codes: C08F 220/56 Acrylamide; Methacrylamide
• CPC Class Codes: C08F 220/58 containing oxygen in addition to the carbonamido oxygen , e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
• CPC Class Codes: C08F 222/102 of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
• CPC Class Codes: C08F 222/1065 : of alcohol terminated (poly)urethanes, e.g. urethane(meth)acrylates
• CPC Class Codes: C08F 224/00 : Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a heterocyclic ring containing oxygen cyclic esters of polyfunctional acids C08F218/00; cyclic anhydrides of unsaturated acids C08F220/00, C08F222/00
• CPC Class Codes: C08L 2205/025 : containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
• CPC Class Codes: C08L 33/06 : of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
• CPC Class Codes: C08L 33/14 : of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
• CPC Class Codes: C09D 4/00 : Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
• CPC Class Codes: Y02P 10/25 : Process efficiency

Abstract

A three-dimensional modeling composition set includes a model material and a support material. The model material contains a heterocyclic acrylate having oxygen as a heteroatom in the molecule and a first photopolymerization initiator. The support material contains a water-soluble polymerizable compound and a second photopolymerization initiator. The heterocyclic acrylate may be an acrylate having one of a dioxane ring structure and a dioxolane ring structure.

Claims

1. A three-dimensional modeling composition set comprising:

a model material containing a heterocyclic acrylate having oxygen as a heteroatom in the molecule thereof and a first photopolymerization initiator; and

a support material containing a water-soluble polymerizable compound and a second photopolymerization initiator.

2. The three-dimensional modeling composition set according to claim 1, wherein

the heterocyclic acrylate is an acrylate having one of a dioxane ring structure and a dioxolane ring structure.

3. The three-dimensional modeling composition set according to claim 2, wherein

the heterocyclic acrylate is at least one of (2-methyl-2-ethyl-1,3-dioxolan-4-yl)methyl acrylate and cyclic trimethylolpropane formal acrylate.

4. The three-dimensional modeling composition set according to claim 1, wherein

the heterocyclic acrylate in the model material has a content of 50% by mass to 80% by mass.

5. The three-dimensional modeling composition set according to claim 1, wherein

the model material further contains a multifunctional polymerizable compound.

6. The three-dimensional modeling composition set according to claim 5, wherein

the multifunctional polymerizable compound in the model material has a content of 1.0% by mass to 10% by mass.

7. The three-dimensional modeling composition set according to claim 1, wherein

the first photopolymerization initiator is at least one compound selected from the group consisting of bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide, 2,4,6-trimethylbenzoyldiphenylphosphine oxide, and 2,4-diethylthioxanthen-9-one.

8. The three-dimensional modeling composition set according to claim 1, wherein

the second photopolymerization initiator is bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide.

9. A three-dimensional modeling method comprising:

a layer-forming step including ejecting the model material and the support material of the composition set as set forth in claim 1 and irradiating the model material and the support material with light,

wherein

the layer-forming step is performed a plurality of times.

10. The three-dimensional modeling method according to claim 9, wherein

the model material and the support material are ejected by an ink jet method.

11. The three-dimensional modeling method according to claim 9, further comprising a support portion removal step of removing portions defined by the support material after the plurality of times of the layer-forming step.