公开(公告)号：US20220287921A1

公开(公告)日：2022-09-15

申请号：US17201180

申请日：2021-03-15

申请人： SHOFU INC.

发明人： Kenzo YAMAMOTO ,  Hideto KASABA ,  Daisuke HARA ,  Shunsuke MIYATA

IPC分类号： A61K6/62 ,  A61K6/71 ,  A61K6/78

摘要： [Problem]
To provide a dental photocurable composition having sufficient mechanical property and being excellent in color tone selectivity because of having a small color difference between before curing and after curing.
[Solution]
To provide 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.

公开(公告)号：US20220401312A1

公开(公告)日：2022-12-22

申请号：US17692568

申请日：2022-03-11

申请人： SHOFU INC.

发明人： Kenzo YAMAMOTO ,  Hideto KASABA ,  Daisuke HARA ,  Shunsuke MIYATA

IPC分类号： A61K6/896 ,  A61C5/00 ,  A61K6/76 ,  A61K6/62

摘要： [Problem]
To provide a dental photocurable composition which has sufficient mechanical property and whose rheological property is not deactivated even after long-term storage.
[Solution]
The dental photocurable composition of the present disclosure comprises (A) polymerizable monomer, (B) photosensitizer, (D) photopolymerization accelerator and (E) filler, wherein, the dental photocurable composition comprises (D1) aliphatic tertiary amine compound represented by formula (1) as the (D) photopolymerization accelerator, and the dental photocurable composition comprises (E1) hydrophobized silica fine particle having an average diameter of primary particle of 1 to 40 nm as the (E) filler. (wherein R1 represents a substituent consisting of three or more carbons having an electron-withdrawing group at α-carbon and/or ε-carbon of an amine starting from N, R2 represents a substituent consisting of three or more carbons which may have an electron-withdrawing group, R3 represents a substituent consisting of one or more carbons which may have an electron-withdrawing group, and α-carbon of N in the formula (1) is not an electron-withdrawing group.)

公开(公告)号：US20170231872A1

公开(公告)日：2017-08-17

申请号：US15435506

申请日：2017-02-17

申请人： SHOFU INC.

发明人： Katsuya KIMOTO ,  Shunsuke MIYATA ,  Hideto KASABA

IPC分类号： A61K6/00 ,  A61K6/083

CPC分类号： A61K6/0088 ,  A61K6/0005 ,  A61K6/0047 ,  A61K6/0052 ,  A61K6/0055 ,  A61K6/007 ,  A61K6/0835

摘要： To provide an organic-inorganic composite filler containing; a polymerizable monomer (a) having at least one functional group selected from the group consisting of —OH group, —NH— group, and —NH2 group, a polymerizable monomer (b) having no functional group selected from the group consisting of —OH group, —NH— group, and —NH2 group, a polymerization initiator (c), an inorganic filler (d), and a silane compound (e) which generates —OH group by hydrolysis.