Title:
PHOTOCURABLE RESIN COMPOSITION, CURED OBJECT, THREE-DIMENSIONAL SHAPED OBJECT, AND METHOD FOR PRODUCING CASTING MOLD
Document Type and Number:
WIPO Patent Application WO/2023/166781
Kind Code:
A1
Abstract:
The present invention provides a photocurable resin composition characterized by comprising a photopolymerization initiator (A) and a polyfunctional (meth)acrylate (B), wherein the amount of the photopolymerization initiator (A) is in the range of 10-30 parts by mass, excluding 10 parts by mass, per 100 parts by mass of the polyfunctional (meth)acrylate (B). The photopolymerization initiator (A) may at least comprise a first photopolymerization initiator (A-1), which has at least one maximal-absorption wavelength in a wavelength range of 350 nm and longer, and a second photopolymerization initiator (A-2), which has no maximal-absorption wavelength in the wavelength range of 350 nm and longer and has a maximal-absorption wavelength in a wavelength range below 350 nm. A three-dimensional shaped object comprising a cured object obtained by curing the photocurable resin composition has a high hardness and is excellent in terms of eliminability by high-temperature heating, shaping accuracy, and casting property.
Inventors:
IGAWA KOUSUKE (JP)
NISHIZAWA SHIGETOSHI (JP)
NISHIZAWA SHIGETOSHI (JP)
Application Number:
PCT/JP2022/039038
Publication Date:
September 07, 2023
Filing Date:
October 20, 2022
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C08F290/06; B22C9/04; B29C64/112; B29C64/124; B33Y70/00
Domestic Patent References:
| WO2021131994A1 | 2021-07-01 |
Foreign References:
| JP2013082924A | 2013-05-09 | |||
| JP2007186603A | 2007-07-26 | |||
| JP2015169934A | 2015-09-28 | |||
| JP2008260812A | 2008-10-30 | |||
| JP2016002703A | 2016-01-12 | |||
| CN111234120A | 2020-06-05 |
Attorney, Agent or Firm:
ONO Takayuki (JP)
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