Dental stereolithography-type three-dimensional printing material used for preparing dental three-dimensional formed article

A three-dimensional printing and patterning technology, applied in dental preparations, dentistry, dental prostheses, etc., can solve the problems of difficult data consistency, large polymerization shrinkage, low polymerization degree, etc., and achieve short production time, excellent deformation over time, and dimensional accuracy. excellent effect

Pending Publication Date: 2020-10-27
SHOFU INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For conventional 3D printing materials with optical modeling, the degree of polymerization is low in the modeling step by the 3D printer, so the polymerization shrinkage during the final curing by the post-curing device is large, resulting in deformation, and there are final cured products. Difficult to agree with expected data

Method used

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  • Dental stereolithography-type three-dimensional printing material used for preparing dental three-dimensional formed article
  • Dental stereolithography-type three-dimensional printing material used for preparing dental three-dimensional formed article
  • Dental stereolithography-type three-dimensional printing material used for preparing dental three-dimensional formed article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0072] (monofunctional acrylate monomer (a) having an aromatic ring)

[0073]In the examples, as the monofunctional acrylate monomer (a) having an aromatic ring, ethoxylated o-phenylphenol acrylate (A-PP-EO), phenoxy ethyl acrylate (A-PE ), 3-phenoxybenzyl acrylate (A-PB), phenoxydiethylene glycol acrylate (A-P2EG).

[0074] (polyfunctional methacrylate monomer (c))

[0075] In Comparative Examples and Examples, as polyfunctional methacrylate monomer (c), triethylene glycol dimethacrylate (2M-3EG), ethoxylated bisphenol A dimethacrylate -EO2.6 (2M-2.6EO), Ethoxylated Bisphenol A Dimethacrylate -EO4.0 (2M-4.0EO), Urethane Dimethacrylate (UDMA).

[0076] (other monomers)

[0077] In the comparative example, as other monomers, 2-hydroxy-3-phenoxypropyl acrylate (A-PP-OH), dimethylol-tricyclodecane diacrylate (2A-3cD) were used , phenoxyethyl methacrylate (M-PE), ethoxylated isocyanurate triacrylate (3A-IC).

[0078] (photopolymerization initiator (b))

[0079] In Comparativ...

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Abstract

The invention relates to a dental stereolithography-type three-dimensional printing material and a method for preparing a dental three-dimensional formed article. An aim of the invention is to providea dental stereolithography-type three-dimensional printing material in which the total preparing time required from modeling with using a 3D printer to a final curing is short, work efficiency is excellent, temporal shrinkage deformation of adental three-dimensional modeled object is suppressed and a dimensional accuracy is excellent. The dental stereolithography-type three-dimensional printing material of the present invention comprises at least one or more (a) monofunctional acrylate monomer having an aromatic ring and (b) photopolymerization initiator, wherein an electronegativity difference between adjacent atoms which are bonded by covalent bond in all atoms constituting the (a) monofunctional acrylate monomer having an aromatic ring is less than 1.0.

Description

technical field [0001] The present invention relates to a three-dimensional printing material in optical modeling form for dentistry and a method for manufacturing a three-dimensional modeling object for dentistry made of the material. Background technique [0002] In recent years, with the rapid spread of 3D CAD, printing modeling technology using 3D printers has been adopted in many industrial fields. In the printing modeling technology using a 3D printer, the optical modeling method is to make a photocurable resin (hereinafter, also referred to as optical modeling three-dimensional printing material or three-dimensional printing material) by ultraviolet light and / or visible light based on three-dimensional CAD data. A method of layering and solidifying layers to create three-dimensional objects. Through the popularization of this printing and molding technology, products can be manufactured in a simple, rapid and mass-produced manner. [0003] Among the above-mentioned ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/887A61K6/15A61K6/62B33Y70/10B33Y80/00
CPCB33Y70/00B33Y80/00A61K6/62B29L2031/7536B33Y10/00A61K6/887C08L33/08C08L33/10C08F220/30C08F2/50C08F2/44A61C13/0019A61C13/087A61C8/0012C08F220/18B33Y40/20A61C13/0013C08F20/16C08F20/20C08F22/12
Inventor 丹羽菜实起藤村英史
Owner SHOFU INC
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