US 12,435,219 B2
Curable resin composition, cured object, and three-dimensional object
Yoshinobu Deguchi, Chiba (JP); and Narumon Thimthong, Chiba (JP)
Assigned to DIC Corporation, Tokyo (JP)
Appl. No. 17/786,533
Filed by DIC Corporation, Tokyo (JP)
PCT Filed Dec. 10, 2020, PCT No. PCT/JP2020/045956
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/125024, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 2019-229181 (JP), filed on Dec. 19, 2019.
Prior Publication US 2023/0056941 A1, Feb. 23, 2023
Int. Cl. C08L 75/06 (2006.01); B29C 64/112 (2017.01); B29C 64/124 (2017.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); C08F 2/48 (2006.01); C08F 220/18 (2006.01); C08F 222/10 (2006.01); C08F 290/06 (2006.01); C08G 18/24 (2006.01); C08G 18/42 (2006.01); C08G 18/66 (2006.01); C08G 18/67 (2006.01); C08G 18/75 (2006.01); C08G 63/16 (2006.01)
CPC C08L 75/06 (2013.01) [B29C 64/112 (2017.08); B29C 64/124 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); C08F 2/48 (2013.01); C08F 220/18 (2013.01); C08F 222/10 (2013.01); C08F 222/1065 (2020.02); C08F 290/067 (2013.01); C08G 18/246 (2013.01); C08G 18/42 (2013.01); C08G 18/4238 (2013.01); C08G 18/6625 (2013.01); C08G 18/672 (2013.01); C08G 18/755 (2013.01); C08G 63/16 (2013.01)] 9 Claims
 
1. A curable resin composition, comprising:
a urethane resin (A) containing a (meth)acryloyl group,
a monofunctional (meth)acrylate compound (B1), and
a bifunctional (meth)acrylate compound (B2), wherein
the urethane resin (A) is formed using, as essential reaction raw materials, a polyester polyol (a1), a polyisocyanate (a2), and a compound (a3) containing a hydroxyl group and a (meth)acryloyl group,
the polyester polyol (a1) is formed using, as essential reaction raw materials, a glycol (a1-1) containing a hydrocarbon group in a side chain, and a polycarboxylic acid (a1-2), and
when the monofunctional (meth)acrylate compound (B1) and the bifunctional (meth)acrylate compound (B2) form a copolymer, the copolymer has a glass transition temperature of 80° C. or higher.