US 11,696,874 B2
Dental photocurable composition excellent in color tone selectivity
Kenzo Yamamoto, Kyoto (JP); Hideto Kasaba, Kyoto (JP); Daisuke Hara, Kyoto (JP); and Shunsuke Miyata, Kyoto (JP)
Assigned to SHOFU INC., Kyoto (JP)
Filed by SHOFU INC., Kyoto (JP)
Filed on Mar. 15, 2021, as Appl. No. 17/201,180.
Claims priority of application No. 2021-040033 (JP), filed on Mar. 12, 2021; application No. 2021-040037 (JP), filed on Mar. 12, 2021; application No. 2021-040039 (JP), filed on Mar. 12, 2021; and application No. 2021-040040 (JP), filed on Mar. 12, 2021.
Prior Publication US 2022/0287921 A1, Sep. 15, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 6/62 (2020.01); A61K 6/71 (2020.01); A61K 6/78 (2020.01); A61K 6/30 (2020.01); A61K 6/831 (2020.01); A61K 6/887 (2020.01); A61K 6/61 (2020.01); C08F 220/28 (2006.01); C08F 220/32 (2006.01); C08F 2/50 (2006.01); C08K 5/00 (2006.01); C08K 5/08 (2006.01); C08K 5/14 (2006.01); C08K 5/17 (2006.01)
CPC A61K 6/62 (2020.01) [A61K 6/30 (2020.01); A61K 6/61 (2020.01); A61K 6/71 (2020.01); A61K 6/78 (2020.01); A61K 6/831 (2020.01); A61K 6/887 (2020.01); C08F 2/50 (2013.01); C08F 220/283 (2020.02); C08F 220/325 (2020.02); C08K 5/0025 (2013.01); C08K 5/08 (2013.01); C08K 5/14 (2013.01); C08K 5/17 (2013.01)] 20 Claims
 
1. A dental photocurable composition, comprising (A) polymerizable monomer, (B) photosensitizer, (C) photoacid generator, (D) photopolymerization accelerator and (E) filler, wherein,
the dental photocurable composition comprises (B-1) α-diketone compound as the (B) photosensitizer, and
the dental photocurable composition comprises, with respect to 100 parts by mass of the (A) polymerizable monomer,
0.15 parts by mass or less of the (B-1) α-diketone compound,
0.5 parts by mass or more of the (C) photoacid generator, and
100 parts by mass or more of the (E) filler.