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公开(公告)号：US20240398522A1
公开(公告)日：2024-12-05
申请号：US18692381
申请日：2022-09-16
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Kenji SUZUKI
Abstract: The present invention provides a method of producing an intraoral appliance equipped with a coated film including an intraoral appliance that is a stereolithographic article of a stereolithographic curable composition having formed on a prescribed surface thereof a coated film capable of imparting excellent adhesion durability and toughness, and relates to a method of producing an intraoral appliance equipped with a coated film, including coating on a prescribed surface of an intraoral appliance that is a stereolithographic article of a stereolithographic curable composition (A) containing a (meth)acrylic based polymerizable monomer (a) and a photopolymerization initiator (b), a curable composition (B) containing the same (meth)acrylic based polymerizable monomer (a) as contained in the stereolithographic curable composition (A), so as to form a coated film of a resin (B1) containing a polymer having a structure derived from the same (meth)acrylic based polymerizable monomer (a) as contained in the stereolithographic curable composition (A), on the prescribed surface of the intraoral appliance.
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公开(公告)号：US20220218572A1
公开(公告)日：2022-07-14
申请号：US17605951
申请日：2020-04-23
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Masashi INOUE , Seiya ICHIKAWA , Kenji SUZUKI , Hayato MIYAKAWA , Tatsuya KAJIKAWA , Hirotaka HORIGUCHI
Abstract: A dental restorative curable compositions may have a high mechanical strength and excellent water resistance and polishability in the form of a cured product. A dental composite resin may include such compositions. A dental mill blank may include the cured product of such compositions. A dental restorative curable composition may include: a (meth)acrylic acid ester compound (A) having two or more (meth)acryloyloxy groups per molecule; a mono(meth)acrylic acid ester compound (B); an inorganic filler (C) having an average primary particle diameter of 0.01 to 5 μm; and a polymerization initiator (D). The mono(meth)acrylic acid ester compound may include at least one selected from the group consisting of a mono(meth)acrylic acid ester compound (B-1) of formula (I): and a mono(meth)acrylic acid ester compound (B-2) of formula (II):
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公开(公告)号：US20230096105A1
公开(公告)日：2023-03-30
申请号：US17908937
申请日：2021-03-05
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Kenji SUZUKI , Shumei ISHIHARA , Misaki ITO
IPC: B29C64/124 , B33Y10/00 , B33Y70/00 , B33Y80/00
Abstract: The present invention provides a resin composition for stereolithography that is easily shapable with good shape precision while reducing sedimentation of inorganic particles during storage, and a obtained three-dimensional shaped article thereby excels in mechanical characteristics such as flexural strength and flexural modulus, in addition to having a desirable shade and good shade stability. The present invention relates to a resin composition for stereolithography comprising a polymerizable monomer (a), a photopolymerization initiator (b), an inorganic particle (c) having an average particle diameter of 5 to 500 nm, and a hindered phenolic compound (d), wherein the content of the photopolymerization initiator (b) is 0.1 to 10 parts by mass relative to 100 parts by mass of the polymerizable monomer (a), the content of the inorganic particle (c) is 50 to 400 parts by mass relative to 100 parts by mass of the polymerizable monomer (a), and the content of the hindered phenolic compound (d) is 0.1 to 500 parts by mass relative to 100 parts by mass of the photopolymerization initiator (b).
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公开(公告)号：US20240400864A1
公开(公告)日：2024-12-05
申请号：US18269975
申请日：2021-12-28
Applicant: Kuraray Noritake Dental Inc.
Inventor： Kenji SUZUKI
Abstract: The present invention provides a stereolithographic article adhesive composition having excellent adhesiveness with respect to a shaped article produced by stereolithography. The present invention relates to a stereolithographic article adhesive composition comprising a multifunctional (meth)acrylic-based polymerizable monomer (A) and a photopolymerization initiator (B). The multifunctional (meth)acrylic-based polymerizable monomer (A) preferably contains at least one of a urethanated (meth)acrylic acid ester compound (a-1), an aromatic compound-based (meth)acrylic acid ester compound (a-2) containing no urethane bond, and a (meth)acrylamide group-containing polymerizable monomer (a-3).
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公开(公告)号：US20220251275A1
公开(公告)日：2022-08-11
申请号：US17612862
申请日：2020-05-21
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Kenji SUZUKI , Misaki ITO
IPC: C08F265/06 , C08K5/14 , C08K9/06 , C08K5/54 , C08K3/36 , B33Y10/00 , B33Y70/00 , B29C64/124
Abstract: The present invention provides a resin composition for stereolithographic modeling emitting a weak odor, having desirable shape accuracy, and made into a cured product having desirable strength, toughness, and color tone when used for stereolithographic modeling. The present invention relates to a resin composition for stereolithographic modeling, comprising: a polymerizable monomer (A); a photopolymerization initiator (B), and an organic peroxide (C), wherein the polymerizable monomer (A) comprises a (meth)acrylic acid ester compound (A-1) having a viscosity of 1,000 mPa·s or less and a normal boiling point of 270° C. or more and/or a (meth)acrylamide compound (A-2) having a viscosity of 1,000 mPa·s or less and a normal boiling point of 200° C. or more, and the photopolymerization initiator (B) is at least one selected from a (bis)acylphosphine oxide, an α-hydroxyketone compound, an α-aminoketone compound, a benzoin alkyl ether compound, a thioxanthone, a ketal, an α-diketone, and an anthraquinone.
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Patent Agency Ranking
公开(公告)号：US20190000722A1
公开(公告)日：2019-01-03
申请号：US16062667
申请日：2016-12-12
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Kenji SUZUKI
CPC classification number: A61K6/083 , A61K6/00 , A61K6/0023 , A61K6/0052 , A61K6/04 , C08L43/04 , C08L33/10 , C08L33/08 , C08L33/06 , C08L33/14
Abstract: The present invention provides a dental adhesive material kit excellent in storage stability of the materials and exhibiting excellent bond durability to dentin by photopolymerization. The present invention is a dental adhesive material kit comprising a dental aqueous adhesive composition (A) and a dental curable composition (B), wherein: the dental aqueous adhesive composition (A) comprises a (meth)acrylic polymerizable monomer (a) containing an acid group, a vanadium compound (b), water (c), a (meth)acrylic polymerizable monomer (d) containing an amino group, and a polymerization inhibitor (i); the content of the polymerization inhibitor (i) is 25 to 1000 parts by weight per 100 parts by weight of the vanadium compound (b); and the dental curable composition (B) comprises a (meth)acrylic polymerizable monomer (e) containing no acid group, a hydroperoxide (f), a photopolymerization initiator (g), and a filler (h) and does not comprise a thiourea compound.
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公开(公告)号：US20250057733A1
公开(公告)日：2025-02-20
申请号：US18721233
申请日：2022-12-21
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Kenji SUZUKI , Misaki ISHIBASHI
Abstract: The present invention relates to a dental curable composition containing a (meth)acrylic based monomer (A) containing two or more (meth)acryloyloxy groups and one or more urethane bond in one molecule, a (meth)acrylate ester compound (B) containing two or more (meth)acryloyloxy groups and one or more hydroxy group in one molecule, a polymerization initiator (C), and an ion releasing compound (D); a dental filling and restorative material containing the dental curable composition; a dental cement containing the dental curable composition; and a dental abutment building material containing the dental curable composition.
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公开(公告)号：US20250057732A1
公开(公告)日：2025-02-20
申请号：US18721241
申请日：2022-12-21
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Kenji SUZUKI
Abstract: The present invention relates to a dental curable composition containing a (meth)acrylic based compound (A) having two or more (meth)acryloyl groups in one molecule, a particular mono(meth)acrylate ester compound (B), a chemical polymerization initiator (C), a polymerization accelerator (D), and a filler (E), being separately packaged in a first material containing the chemical polymerization initiator (C) and a second material containing the polymerization accelerator (D); a dental filling and restorative material containing the dental curable composition; a dental cement containing the dental curable composition; and a dental abutment building material containing the dental curable composition.
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公开(公告)号：US20230091071A1
公开(公告)日：2023-03-23
申请号：US17798358
申请日：2021-02-09
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Kenji SUZUKI , Misaki ITO
IPC: C08F290/06 , A61L31/04 , A61K6/887 , B33Y70/00
Abstract: The present invention provides a resin composition for stereolithography that excels in strength, toughness, and water resistance in the form of a shaped article. The present invention relates to a resin composition for stereolithography that comprises a urethanized (meth)acrylic compound (A), a (meth)acrylate compound (B) containing no urethane bond, and a photopolymerization initiator (C), the compound (A) being a urethanized (meth)acrylic compound (A-1) having a polymer structure, and/or a urethanized (meth)acrylic compound (A-2) having no polymer structure, the compound (A-1) having a weight-average molecular weight of less than 1,000, the compound (A-2) having a molecular weight of less than 1,000, the compound (B) comprising at least one selected from the group consisting of a (meth)acrylate compound (b-I) represented by general formula (I), and a (meth)acrylate compound (b-II) represented by general formula (II).
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公开(公告)号：US20220259361A1
公开(公告)日：2022-08-18
申请号：US17617160
申请日：2020-06-05
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Misaki ITO , Kenji SUZUKI
Abstract: A resin composition for stereolithography may emit a weak odor, enable easy fabrication of an object, and may be made into a cured product having desirable toughness and water resistance when used for stereolithographical fabrication. A resin composition for stereolithography may include: an α,β-unsaturated double bond group-containing compound (A) having a homopolymer glass transition temperature (Tg) of 40° C. or more, having a plurality of independent aromatic rings, and having no urethane bond; an α,β-unsaturated double bond group-containing compound (B) having a homopolymer glass transition temperature (Tg) of less than 40° C., having a ring structure, and having a normal boiling point of 250° C. or more; and a photopolymerization initiator (C).
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