US 11,952,447 B2
Polymerizable composition for dental material, and dental material obtained from said composition
Takuya Matsumoto, Ichihara (JP); and Naoyuki Kakinuma, Ichihara (JP)
Assigned to MITSUI CHEMICALS, INC., Tokyo (JP)
Appl. No. 16/981,802
Filed by MITSUI CHEMICALS, INC., Tokyo (JP)
PCT Filed Mar. 28, 2019, PCT No. PCT/JP2019/013614
§ 371(c)(1), (2) Date Sep. 17, 2020,
PCT Pub. No. WO2019/189579, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 2018-068931 (JP), filed on Mar. 30, 2018.
Prior Publication US 2021/0017313 A1, Jan. 21, 2021
Int. Cl. C08F 220/14 (2006.01); A61K 6/30 (2020.01); C08K 3/36 (2006.01)
CPC C08F 220/14 (2013.01) [C08K 3/36 (2013.01)] 17 Claims
 
1. A polymerizable composition for a dental material, the polymerizable composition comprising:
one selected from the group consisting of allyl compound (A) and an oligomer of allyl compound (A),
(meth)acrylate compound (B), and
optionally a polymerization initiator,
wherein the allyl compound (A) includes compound (A1) represented by general formula (A1) below or compound (A2) represented by general formula (A2) below:

OG Complex Work Unit Chemistry
wherein m is an integer of 2 to 8, each group R1 is a hydrogen atom or a methyl group, groups R1 are the same or different, n is an integer of 0 or 1, X is an m-valent C2-100 hydrocarbon group optionally having a substituent and optionally containing a heteroatom,

OG Complex Work Unit Chemistry
wherein l is an integer of 1 to 8, each group R10 is a hydrogen atom or a methyl group, groups R10 are the same or different;
if l is 2 to 8, then Y is an l-valent C2-100 hydrocarbon group optionally having a substituent and optionally containing a heteroatom, and
if l is 1, then Y is a group represented by general formula (Y1) below:

OG Complex Work Unit Chemistry
wherein R11 is a hydrogen atom or a methyl group, h is an integer of 0 or 1, and the dashed line part represents a bonding position to the group in the parentheses in formula (A2),
wherein the polymerization initiator comprises at least one selected from a room-temperature polymerization initiator, a thermal polymerization initiator and a photopolymerization initiator,
the room-temperature polymerization initiator is at least one selected from an organic peroxide/amine systems, a cumene hydroperoxide/thiourea system, an ascorbic acid/Cu2+ salt system, an organic peroxide/amine/sulfinic acid, tributylborane, and organic sulfinic acid,
the thermal polymerization initiator is at least one selected from a peroxide and an azo compound.