Photocurable resin and three-dimensional printing system

Patent metadata

Field	Value
Publication number	US-9987839-B2
Application number	US-201615064032-A
Country	US
Kind code	B2
Filing date	Mar 8, 2016
Priority date	Mar 10, 2015
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

A photocurable resin composition for three-dimensional printing which is visible-light curable is provided, comprising a photosensitive prepolymer in a range of 76.5 wt % to 96.8 wt %, a photoinitiator in a range of 0.01 wt % to 5 wt %, an auxiliary photoinitiator in a range of 0.01 wt % to 15 wt %, and a solvent in a range of 0.01 to 10 wt %. A three-dimensional printing system comprises: an accommodation unit, a lifting unit, a formation unit, and a control unit. The accommodation unit is for accommodating a printing material. The formation unit, which is connected to the lifting unit, can be driven by the lifting unit so as to move with respect to a light emission unit. The control unit, coupled to the lifting unit, controls motion of the lifting unit. The light emission unit may be a mobile electronic device, a display device, or a digital television.

First claim

What is claimed is:

1. A photocurable resin composition for three-dimensional printing, which is visible-light curable and comprising:
a photosensitive prepolymer in a range of 86.5 wt % to 99.7 wt %, a photoinitiator in a range of 0.01 wt % to 5 wt %, an auxiliary photoinitiator in a range of 0.01 wt % to 15 wt %, and a solvent in a range of 0.01 to 10 wt %, wherein
the photosensitive prepolymer comprises at least one selected from the group consisting of butyl acrylate, isodecylacrylate, and polyethylene glycol monoacrylate;
the photoinitiator comprises at least one selected from the group consisting of a fluorone derivatives;
the auxiliary photoinitiator comprises at least one selected from the group consisting of N,N-dimethyl acrylamide, and Ethanaminium, N,N,N-trimethyl-2-(1-oxobutoxy)-butyltriphenylborate.

2. The photocurable resin composition for three-dimensional printing according to claim 1 , wherein the solvent is dimethylacetamide.

3. The photocurable resin composition for three-dimensional printing according to claim 1 , wherein the photocurable resin composition is curable through absorption of a visible light with a wavelength in a range of 400 nm to 700 nm.

4. The photocurable resin composition for three-dimensional printing according to claim 2 , wherein the photocurable resin composition is curable through absorption of a visible light with a wavelength in a range of 400 nm to 700 nm.

Assignees

• Univ Nat Taiwan Science & Technology

Inventors

• Jeng Jeng-Ywan
• Jhang Fu-Teng
• Shafikova Rimma
• Tri Sarjono

Classifications

• B29K2033/08

  Polymers of acrylic acid esters, e.g. PMA, i.e. polymethylacrylate · CPC title

• B33Y30/00 Primary

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• B29C64/129

  characterised by the energy source therefor, e.g. by global irradiation combined with a mask · CPC title

• B33Y70/00 Primary

  Materials specially adapted for additive manufacturing · CPC title

• B29K2105/24

  crosslinked or vulcanised · CPC title