US 12,030,970 B2
Curable composition and stereolithographic resin composition comprising same
Daiki Noguchi, Niigata (JP); Takashi Fukumoto, Niigata (JP); and Kenji Suzuki, Niigata (JP)
Assigned to KURARAY CO., LTD., Okayama (JP)
Appl. No. 17/621,282
Filed by KURARAY CO., LTD., Okayama (JP)
PCT Filed Jun. 25, 2020, PCT No. PCT/JP2020/025111
§ 371(c)(1), (2) Date Dec. 21, 2021,
PCT Pub. No. WO2020/262564, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 2019-121873 (JP), filed on Jun. 28, 2019.
Prior Publication US 2022/0325025 A1, Oct. 13, 2022
Int. Cl. C08F 2/46 (2006.01); A61K 6/887 (2020.01); B29C 64/106 (2017.01); C08F 2/48 (2006.01); C08F 2/50 (2006.01); C08F 220/30 (2006.01); C08F 220/40 (2006.01); C08F 220/58 (2006.01); C08F 222/10 (2006.01); C08G 18/24 (2006.01); C08G 18/42 (2006.01); C08G 18/75 (2006.01); C08G 61/04 (2006.01); C08K 3/36 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01)
CPC C08F 222/1065 (2020.02) [A61K 6/887 (2020.01); B29C 64/106 (2017.08); C08F 2/48 (2013.01); C08F 220/301 (2020.02); C08F 220/40 (2013.01); C08F 220/58 (2013.01); C08G 18/242 (2013.01); C08G 18/4238 (2013.01); C08G 18/755 (2013.01); C08K 3/36 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12)] 18 Claims
 
1. A curable composition comprising
79.0 to 99.0% by mass of a polymerizable monomer (a), wherein the polymerizable monomer (a) contains a polymerizable monomer (a)-1 containing plural polymerizable groups, wherein the polymerizable monomer (a)-1 contains a urethanated (meth)acrylic compound (a)-1α having in one molecule thereof at least one structure selected from the group consisting of a 3-methylpentanediol-derived constituent unit,
0.1 to 10.0% by mass of a photopolymerization initiator (b), and
0.01 to 20.0% by mass of a compound represented by the following general formula (I) as a polyfunctional polymerizable compound (c):

OG Complex Work Unit Chemistry
wherein R1 and R2 each independently represent at least one kind selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, and an aralkyl group; R3 represents at least one kind of a polymerizable functional group selected from the group consisting of a (meth)acryloyl group, a 4-vinylphenyl group, and an alkenyl group having 2 to 5 carbon atoms; and n represents an arbitrary integer of 0 to 5.