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公开(公告)号：US20240180788A1
公开(公告)日：2024-06-06
申请号：US18550553
申请日：2022-02-28
发明人： Hideaki MIYAKE , Moeno TAGO , Hironobu AKIZUMI , Ryuta KIRA , Naoto NOMURA
摘要： The photocationically curable composition of the present invention contains a cationically polymerizable monomer (a), a photo acid generator (b), a photosensitizer (c), and a thiophene compound (d). The present invention can provide a photocationically curable composition that can be rapidly cured at room temperature, can provide a cured material having high color tone stability, and is relatively resistant to gelation.
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公开(公告)号：US20240164996A1
公开(公告)日：2024-05-23
申请号：US18503482
申请日：2023-11-07
申请人： Ivoclar Vivadent AG
CPC分类号： A61K6/893 , A61C13/0013 , A61C13/0019 , A61C13/01 , A61C13/087 , A61C13/1003 , A61K6/76 , A61K6/79
摘要： A radically polymerizable material for the preparation of dental prostheses, containing (a) at least one monofunctional radically polymerizable (meth)acrylate, (b) at least one polyfunctional radically polymerizable (meth)acrylate, (c) at least one ABA triblock copolymer, (d) at least one nanoparticulate or microfine filler having an average primary particle size of from 10 nm to 350 nm, and (e) at least one photoinitiator. The A block of the ABA triblock copolymer is an oligomeric polyester and the B block is an oligomeric polysiloxane.
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公开(公告)号：US20220387263A1
公开(公告)日：2022-12-08
申请号：US17692584
申请日：2022-03-11
申请人： SHOFU INC.
发明人： Naoya KITADA , Rei NISHIMURA , Daisuke HARA , Kenzo YAMAMOTO
摘要： To provide a dental photocurable composition having good storage stability of a matrix containing a polymerizable monomer and a polymerization initiator, etc. and excellent mechanical strength of a dental photocurable composition comprising a mixture of the matrix and a filler. The dental photocurable composition of the present disclosure comprises a matrix containing (A) polymerizable monomer, (B) photosensitizer, (C) photoacid generator and (D) photopolymerization accelerator, and (E) filler, wherein, the dental photocurable composition comprises (A1) polymerizable monomer having an acidic group as the (A) polymerizable monomer, and the dental photocurable composition comprises (D1) tertiary aliphatic amine compound having Log P of 2 or more and pKa of 10 or less as the (D) photopolymerization accelerator.
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公开(公告)号：US20220142874A1
公开(公告)日：2022-05-12
申请号：US17413195
申请日：2019-12-12
摘要： A dental composition may be suitable for use as a dental composite resin or other dental material, have good ease of handling, and be highly stable in consistency and low in polymerization shrinkage stress while providing desirable mechanical strength and polishability for the cured product. A dental composition may include a polymerizable monomer (A), an inorganic filler (B), a prepolymer (C), and a polymerization initiator (D), the inorganic filler (B) having an average particle diameter of 1 to 20 μm, and a specific surface area of 10 to 300 m2/g. The prepolymer (C) preferably has a structure derived from the polyfunctional monomer (a). The polyfunctional monomer (a) has a molecular weight of preferably 250 to 1,000.
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公开(公告)号：US11173100B2
公开(公告)日：2021-11-16
申请号：US16343853
申请日：2017-10-20
发明人： Mariko Kawana , Shumei Ishihara , Mitsuru Takei , Kengo Futami
摘要： The present invention provides a dental cement showing excellent storage stability, undergoing little change in paste properties during long-term storage, and having a small solidification risk during long-term storage. The present invention relates to a multi-part dental cement comprising: a first paste comprising an acid group-containing (meth)acrylic polymerizable monomer (a), a polyfunctional (meth)acrylic polymerizable monomer (b) containing no acid group, an oxidizing agent (c-1) of a chemical polymerization initiator, and a filler (d); and a second paste comprising a polyfunctional (meth)acrylic polymerizable monomer (b) containing no acid group, a reducing agent (c-2) of a chemical polymerization initiator, and a filler (e), wherein the filler (d) is treated with a surface treatment agent and has an average particle diameter of 0.01 to 50.0 μm, the surface treatment agent comprises a silane coupling agent (A) represented by the general formula (1) and an organosilazane (B) represented by the general formula (2).
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公开(公告)号：US11135138B2
公开(公告)日：2021-10-05
申请号：US16484892
申请日：2018-02-07
摘要： The invention relates to a hardenable dental resin composition provided as a kit of parts comprising a powder part and a liquid part, the powder part comprising acid-reactive glass filler A, non acid-reactive nanocluster filler B, the liquid part comprising polymerizable components with an acidic moiety, polymerizable components without an acidic moiety, the hardenable dental composition further comprising a dual-cure initiator system the components of which being distributed between the powder part and the liquid part, wherein the dual-cure initiator system comprises sensitizing agent(s), oxidizing component(s), (thio)barbituric acid component(s) and transition metal component(s). The composition can be used as a self-adhesive dental resin filling material, self-adhesive dental resin core build up material, self-adhesive dental resin cement material, self-adhesive fissure sealing material, a self-adhesive dental root channel material.
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公开(公告)号：US11135137B2
公开(公告)日：2021-10-05
申请号：US16643978
申请日：2018-05-14
申请人： GC Corporation
发明人： Daisuke Takada , Shuji Kariya
摘要： According to one aspect of the present invention, a dental photopolymerizable composition includes: a (meth)acrylate compound; a filler; a photopolymerization initiator; and a phthalic acid derivative and/or a thiophene derivative, wherein a content of the phthalic acid derivative and/or the thiophene derivative is greater than or equal to 0.05% by mass and less than or equal to 0.25% by mass.
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公开(公告)号：US11033464B2
公开(公告)日：2021-06-15
申请号：US16205396
申请日：2018-11-30
申请人： SHOFU INC.
发明人： Daisuke Hara , Naoya Kitada , Toshiyuki Nakatsuka
摘要： To provides a polymerizable composition having high storage stability and high color stability. To provide a two-paste type dental polymerizable composition of the present invention is a two-paste type dental polymerizable composition comprising a first paste containing (A) at least one kind of polemerizable monomer, an (B) organic peroxide as a chemical polymerization initiator, and a (C) basic filler, and a second paste containing (A) at least one kind of polemerizable monomer, a (C) basic filler and an (D) aromatic amine compound as a chemical polymerization accelerator, wherein the second paste contains 30 to 80 parts by weight of the (C) basic filler based on 100 parts by weight of the total amount of the second paste.
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公开(公告)号：US20210169748A1
公开(公告)日：2021-06-10
申请号：US16761363
申请日：2017-11-28
申请人： MARUCHI CO., LTD.
发明人： Sung-Wook JANG
摘要： Disclosed is a medical filler composition, which is loaded in a space which is empty due to the removal of nerves, blood vessels, cell tissues and hard tissues therefrom and which is also biocompatible, highly bioactive and biochemically stable and has high workability and sealing ability, including a calcium supply source including at least one selected from among calcium hydroxide and calcium oxide, a silicon supply source including at least one selected from fumed silica, precipitated silica, colloidal silica and clay mineral, and 20 to 70 parts by weight of a liquid material for pasting, based on 100 parts by weight of a mixture of the calcium supply source and the silicon supply source, wherein the calcium/silicon molar ratio of calcium silicate hydrate produced by a pozzolanic reaction between the calcium supply source and the silicon supply source is 0.25 to 1.5.
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公开(公告)号：US11020324B2
公开(公告)日：2021-06-01
申请号：US16285708
申请日：2019-02-26
发明人： Long Ling , Yulin Chen , Yumeng Ma
摘要： Two-part dual-curing dental compositions containing a hydroperoxide, a thiourea derivative and an acetylacetonate salt as redox radical initiator system, are provided. The dental compositions may contain an acidic monomer for use as a self-adhesive cement. The dental compositions possess enhanced shelf-life stability for working/setting time, bonding strength, color stability, slump, flexural strength/modulus, and when kept at 50° C. for more than 16 weeks.
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