公开(公告)号：US20190192386A1

公开(公告)日：2019-06-27

申请号：US16328984

申请日：2017-08-30

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Keishi FUKUDOME ,  Hironobu AKIZUMI

IPC: A61K6/083 ,  A61K6/00

Abstract: A photocurable composition is provided, which is characterized by comprising a polymerizable monomer component (A), an inorganic filler component (B) having an average particle diameter of 0.07 μm or more, an organic-inorganic composite filler component (C) comprising an inorganic filler component (C1) and an organic polymer component (C2) and having an average particle diameter of 0.5 μm or more, and a photopolymerization initiator (D), wherein the inorganic filler component (B) and the organic-inorganic composite filler component (C) are contained in a total amount of 100 to 1500 parts by mass relative to 100 parts by mass of the polymerizable monomer component (A), and the polymerizable monomer component (A), 90 parts by mass or more of the inorganic filler component (B) and 90 parts by mass or more of the organic-inorganic composite filler component (C) are selected in such a manner that specific requirements can be satisfied.

公开(公告)号：US20230022464A1

公开(公告)日：2023-01-26

申请号：US17756959

申请日：2020-10-29

Applicant: Tokuyama Dental Corporation

Inventor： Akane KATO ,  Keishi FUKUDOME

IPC: A61K6/30 ,  A61K6/60 ,  A61K6/76

Abstract: [Object] To provide a dental adhesive composition that is highly adhesive to both porcelain and a tooth substance, an acid monomer, water, and a silane coupling agent coexisting in the dental adhesive composition, the dental adhesive composition being usable as a one-liquid type adhesive and exhibiting high preservation stability as a one-liquid type adhesive even after long-term preservation, regardless of the type of acid monomer used.
[Solving Means] There is provided a dental adhesive composition characterized by including a mixture that includes a silane coupling agent (A) that does not have a silyl ether structure and includes an organic silane compound (a1) in which four monovalent groups are bonded to one silicon atom, the four monovalent groups including (i) a monovalent group having a radical polymerizable group and (ii) a monovalent group that has an alkylene chain having 3 to 40 carbon atoms and an unsaturated bond in a carbon atom at a β-position from the silicon atom; a fluoride salt (B); a polymerizable monomer (C) that contains an acidic group-containing polymerizable monomer (c1); water (D); and an organic solvent (E).

公开(公告)号：US20240122814A1

公开(公告)日：2024-04-18

申请号：US18549020

申请日：2022-03-31

Applicant: Tokuyama Dental Corporation

Inventor： Tetsuro MORIMOTO ,  Keishi FUKUDOME

IPC: A61K6/887 ,  A61K6/76

CPC classification number: A61K6/887 ,  A61K6/76

Abstract: [Object] To provide a dental adhesive composition that has high adhesiveness even to a silica ceramic restoration by containing a silane coupling material, can be stably preserved for a long period of time even with presence of both a silica filler and the silane coupling material, and is suitable as dental cement.
[Solving Means] A dental adhesive composition includes: 100 parts by mass of a polymerizable monomer component (A) formed of an acidic group-containing polymerizable monomer and an acidic group-free polymerizable monomer; 50 to 1000 parts by mass of a silica filler (B); and 0.1 to 20 parts by mass of a silane coupling material (C), in which 97 mass % or more of the silane coupling material (C) is an α-branched alkoxysilane silane coupling material formed of an organosilicon compound in which a monovalent radically polymerizable organic residue and a branched alkoxy group are bonded to a silicon atom, the monovalent radically polymerizable organic residue having at least one radically polymerizable functional group, the branched alkoxy group having 3 to 5 carbon atoms and a branch at an α position.

公开(公告)号：US20200239604A1

公开(公告)日：2020-07-30

申请号：US16756695

申请日：2018-12-10

Applicant: TOKUYAMA DENTAL CORPORATION

Inventor： Keishi FUKUDOME

IPC: C08F4/40 ,  C09J4/00 ,  C09J11/06 ,  A61K6/887 ,  A61K6/61

Abstract: Provided are a chemical polymerization initiator including (a) a thiourea compound, (b) a peroxyester, (c) a divalent copper compound, and (d) an aryl borate compound, an adhesive composition, an adhesive composition kit, a dental material, and a dental material kit each using the chemical polymerization initiator, and a method of storing the adhesive composition.