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    Dental cement
    1.
    发明授权
    Dental cement 有权

    公开(公告)号：US10123947B2

    公开(公告)日：2018-11-13

    申请号：US15317458

    申请日：2015-06-10

    Applicant: KURARAY NORITAKE DENTAL INC.

    Inventor： Mitsuru Takei ,  Yamato Nojiri

    IPC: A61K6/083 ,  A61K6/00 ,  A61L24/00 ,  A61L24/04

    Abstract: The present invention provides a dental cement that exhibits excellent adhesiveness to dentin and has high mechanical strength. The present invention relates to a multi-part dental cement containing: an asymmetric acrylamide-methacrylic acid ester compound (a); an acid group-containing (meth)acrylic polymerizable monomer (b); a hydrophobic crosslinkable polymerizable monomer (c); a chemical polymerization initiator (d); and a filler (e). The asymmetric acrylamide-methacrylic acid ester compound (a) is represented by the following general formula (1): where X is an optionally substituted, linear or branched C1 to C6 aliphatic group or an optionally substituted aromatic group, the aliphatic group is optionally interrupted by at least one linking group selected from the group consisting of —O—, —S—, —CO—, —CO—O—, —O—CO—, —NR1—, —CO—NR1—, —NR1—CO—, —CO—O—NR1—, —O—CO—NR1—, and —NR1—CO—NR1—, and R1 is a hydrogen atom or an optionally substituted, linear or branched C1 to C6 aliphatic group.

    Multi-part dental cement
    3.
    发明授权
    Multi-part dental cement 有权

    公开(公告)号：US11173100B2

    公开(公告)日：2021-11-16

    申请号：US16343853

    申请日：2017-10-20

    Applicant: KURARAY NORITAKE DENTAL INC.

    Inventor： Mariko Kawana ,  Shumei Ishihara ,  Mitsuru Takei ,  Kengo Futami

    IPC: A61K6/887 ,  A61K6/76

    Abstract: 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).

    Self-adhesive dental composite resin
    4.
    发明授权
    Self-adhesive dental composite resin 有权

    公开(公告)号：US09844495B2

    公开(公告)日：2017-12-19

    申请号：US15317421

    申请日：2015-06-10

    Applicant: KURARAY NORITAKE DENTAL INC.

    Inventor： Yasutaka Kudo ,  Yamato Nojiri ,  Mitsuru Takei

    IPC: C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  A61K6/083 ,  A61K6/00

    CPC classification number: A61K6/083 ,  A61K6/00 ,  A61K6/0088

    Abstract: The present invention provides a self-adhesive composite resin having excellent adhesiveness to tooth structures and excellent mechanical strength. The present invention relates to a self-adhesive dental composite resin containing: an asymmetric acrylamide-methacrylic acid ester compound (a); an acid group-containing (meth)acrylic polymerizable monomer (b); a hydrophobic crosslinkable polymerizable monomer (c); a photopolymerization initiator (d); and a filler (e). The asymmetric acrylamide-methacrylic acid ester compound (a) is represented by the following general formula (1): where X is an optionally substituted, linear or branched C1 to C6 aliphatic group or an optionally substituted aromatic group, the aliphatic group is optionally interrupted by at least one linking group selected from the group consisting of —O—, —S—, —CO—, —CO—O—, —O—CO—, —NR1—, —CO—NR1—, —NR1—CO—, —CO—O—NR1—, —O—CO—NR1—, and —NR1—CO—NR1—, and R1 is a hydrogen atom or an optionally substituted, linear or branched C1 to C6 aliphatic group.

    Dental adhesive
    6.
    发明授权
    Dental adhesive 有权

    公开(公告)号：US10456333B2

    公开(公告)日：2019-10-29

    申请号：US15781745

    申请日：2016-12-06

    Applicant: KURARAY NORITAKE DENTAL INC.

    Inventor： Yamato Nojiri ,  Mitsuru Takei

    IPC: A61K6/083 ,  A61K6/087 ,  A61K6/00 ,  C09J133/10 ,  C09J133/26

    Abstract: Provided herein is a self-etching dental adhesive that exhibits excellent adhesiveness not only to dentin untreated by phosphoric acid etching, but to dentin treated by phosphoric acid etching. The present invention relates to a dental adhesive containing a (meth)acrylamide compound (a), an asymmetric acrylamide-methacrylic acid ester compound (b), and an acid group-containing (meth)acrylic polymerizable monomer (c). The (meth)acrylamide compound (a) is at least one selected from the group consisting of compounds represented by general formula (1), and compounds represented by general formula (2). The asymmetric acrylamide-methacrylic acid ester compound (b) is a compound represented by general formula (3). (In the formulae, the meanings of the symbols are omitted.)

    Self-adhesive dental composite resin
    8.
    发明授权
    Self-adhesive dental composite resin 有权

    公开(公告)号：US10987281B2

    公开(公告)日：2021-04-27

    申请号：US16343885

    申请日：2017-10-20

    Applicant: KURARAY NORITAKE DENTAL INC.

    Inventor： Shumei Ishihara ,  Yamato Nojiri ,  Mitsuru Takei ,  Kenji Hatanaka

    IPC: C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  A61K6/30 ,  A61K6/887 ,  C08F222/10 ,  C08K3/36 ,  C08K9/06

    Abstract: The present invention provides a self-adhesive dental composite resin maintaining mechanical strength, showing excellent storage stability, undergoing little change in transparency and properties of the paste during long-term storage, and having a small solidification risk during long-term storage. The present invention relates to a self-adhesive dental composite resin comprising: an acid group-containing (meth)acrylic polymerizable monomer (a); a polyfunctional (meth)acrylic polymerizable monomer (b) containing no acid group; a photopolymerization initiator (c); and a filler (d), 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 following general formula (1): CH2═C(R1)—COO—(CH2)p—Si—R2qR3(3-q)  (1), and an organosilazane (B) represented by the following general formula (2): R4R5R6—Si—NH—Si—R7R8R9  (2).

    ONE-PART DENTAL ADHESIVE
    9.
    发明申请
    ONE-PART DENTAL ADHESIVE 有权
    一体牙膏

    公开(公告)号：US20150094392A1

    公开(公告)日：2015-04-02

    申请号：US14387396

    申请日：2013-03-15

    Applicant: KURARAY NORITAKE DENTAL INC.

    Inventor： Mitsuru Takei ,  Yamato Nojiri

    IPC: A61K6/083

    CPC classification number: A61K6/0835 ,  A61K6/0023 ,  A61K6/0047 ,  A61K6/005 ,  A61K6/0073 ,  A61K6/0085 ,  A61K6/0091 ,  A61K6/0094 ,  A61K6/024 ,  A61K6/025 ,  C08L33/10 ,  C08L77/00 ,  C08L27/06 ,  C08L25/06 ,  C08L33/26 ,  C08L43/02

    Abstract: The present invention provides a one-part dental adhesive that exhibits excellent adhesive properties to both enamel and dentin and that has high storage stability and ambient-light stability. The present invention is a one-part dental adhesive including 1 to 30 weight % of a phosphoric acid group-containing monofunctional (meth)acrylate compound (a), 10 to 50 weight % of a water-soluble polymerizable monomer (b), 5 to 50 weight % of a hydrophobic crosslinkable (meth)acrylate compound (c), water (d), and a polymerization initiator (e). The water-soluble polymerizable monomer (b) includes a combination of a monofunctional (meth)acrylamide compound (b-1) having a particular structure and a water-soluble crosslinkable (meth)acrylic monomer (b-2). The weight ratio between the monofunctional (meth)acrylamide compound (b-1) and the water-soluble crosslinkable (meth)acrylic monomer (b-2) is 10:1 to 1:5.

    Abstract translation: 本发明提供了一种对牙釉质和牙本质具有优异粘合性能且具有高储存稳定性和环境光稳定性的一部分牙科粘合剂。 本发明是含有1〜30重量％的含磷酸基单官能（甲基）丙烯酸酯化合物（a），10〜50重量％的水溶性聚合性单体（b），5 至50重量％的疏水性交联性（甲基）丙烯酸酯化合物（c），水（d）和聚合引发剂（e）。 水溶性聚合性单体（b）包含具有特定结构的单官能（甲基）丙烯酰胺化合物（b-1​​）和水溶性交联性（甲基）丙烯酸系单体（b-2）的组合。 单官能（甲基）丙烯酰胺化合物（b-1​​）与水溶性交联性（甲基）丙烯酸系单体（b-2）的重量比为10:1〜1:5。

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