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公开(公告)号：US20150182315A1
公开(公告)日：2015-07-02
申请号：US14416351
申请日：2013-07-30
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Koichi Okada , Takehiro Kameya , Hiroshige Ishino
IPC: A61C13/00
CPC classification number: A61C13/0006 , A61C13/0004 , A61C13/0022 , A61C13/082 , A61C13/087 , A61K6/08
Abstract: A method for producing a dental mill blank, characterized in that the method includes contacting an inorganic filler molded article produced by subjecting an inorganic filler to press molding and a polymerizable monomer-containing composition, and allowing the polymerizable monomer to polymerize and cure. When the method of the present invention is used, a dental mill blank having a high inorganic powder content and excellent mechanical strength is obtained. In addition, the dental mill blank obtained is suitably used in the fabrication of a dental prosthesis having high mechanical strength and excellent gloss retention, by machining a mill blank using a CAD/CAM system.
Abstract translation: 一种生产牙科磨粉机的方法，其特征在于，所述方法包括使通过无机填料进行压制成型制备的无机填料成型体与含可聚合单体的组合物接触，并使可聚合单体聚合和固化。 当使用本发明的方法时，获得具有高无机粉末含量和优异的机械强度的牙科磨料坯料。 此外，通过使用CAD / CAM系统机加工轧机坯料，所得到的牙科磨料坯料适合用于制造具有高机械强度和优异光泽保持性的牙科假体。
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公开(公告)号：US11453785B2
公开(公告)日：2022-09-27
申请号：US16470661
申请日：2017-12-18
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Takehiro Kameya , Shogo Hiramatsu , Masashi Inoue
IPC: C09C3/12 , A61C13/00 , A61C13/087 , C08F20/06 , C08F20/18 , C08F20/56 , C09C3/04 , C09D5/02 , A61K6/884
Abstract: The present invention provides a method that enables production of a surface-treated colored inorganic particle with which the desired color tone can be consistently reproduced as intended with no variation occurring in the color tone of the compositions produced with the particle, within each production and over multiple production runs. The invention relates to a method for producing a surface-treated colored inorganic particle, comprising spray drying a mixture of a dispersion [I] and a solution [II], wherein the dispersion [I] is a dispersion of inorganic particles having an average particle diameter of 0.005 to 5 μm dispersed in a solvent with a pigment, and the solution [II] is a solution of a surface treatment agent hydrolyzed in the presence of a hydrolysis aid.
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公开(公告)号：US10172695B2
公开(公告)日：2019-01-08
申请号：US14416351
申请日：2013-07-30
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Koichi Okada , Takehiro Kameya , Hiroshige Ishino
IPC: A61C8/00 , A61C13/00 , A61C13/087 , A61C13/08
Abstract: A method for producing a dental mill blank, characterized in that the method includes contacting an inorganic filler molded article produced by subjecting an inorganic filler to press molding and a polymerizable monomer-containing composition, and allowing the polymerizable monomer to polymerize and cure. When the method of the present invention is used, a dental mill blank having a high inorganic powder content and excellent mechanical strength is obtained. In addition, the dental mill blank obtained is suitably used in the fabrication of a dental prosthesis having high mechanical strength and excellent gloss retention, by machining a mill blank using a CAD/CAM system.
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公开(公告)号：US09855196B2
公开(公告)日：2018-01-02
申请号：US14648536
申请日：2013-11-26
Applicant: KURARAY NORITAKE DENTAL INC.
Inventor： Takehiro Kameya , Hiroshige Ishino , Akiko Tsuji
CPC classification number: A61K6/083 , A61C5/50 , A61C19/02 , A61K6/0005 , A61K6/0008 , A61K6/0017 , A61K6/0073 , A61K6/027 , A61K6/0276 , C08L33/10
Abstract: The present invention provides a dental curable composition suitable as a flowable composite resin. The dental curable composition, when in the form of a cured product, has excellent mechanical strength, polishability, and gloss retention, and, when in the form of a paste, has consistency appropriate for discharge through a needle attached to the tip of a syringe and exhibits good formability and handling properties after discharge through the needle. The present invention is a dental curable composition including: a polymerizable monomer (A); irregularly-shaped inorganic particles (B) having an average particle diameter of 0.1 to 0.3 μm and surface-treated with a silane coupling agent having a particular structure; and inorganic ultrafine particles (C) having an average particle diameter of 5 to 50 nm and surface-treated with a silane coupling agent having a particular structure, the dental curable composition containing 92.5 to 98 weight % of the irregularly-shaped inorganic particles (B) and 2 to 7.5 weight % of the inorganic ultrafine particles (C) relative to the amount of total inorganic particles and having a consistency of 25 to 55.
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