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    • 72. 发明专利
    • Powder liquid-type dental resin-enriched glass ionomer cement
    • 粉末液体型牙齿树脂富集玻璃离子水泥
    • JP2014181190A
    • 2014-09-29
    • JP2013055179
    • 2013-03-18
    • Kuraray Noritake Dental Incクラレノリタケデンタル株式会社
    • TAKEI MITSURUNISHIGAKI NAOKITOMITA WATARU
    • A61K6/06A61K6/083
    • PROBLEM TO BE SOLVED: To provide a powder liquid-type dental resin-enriched glass ionomer cement excellent in adhesiveness to dentine and in storage stability.SOLUTION: A powder liquid-type dental resin-enriched glass ionomer cement comprises a powder material comprising a fluoroaluminosilicate glass particle (A) and a polyalkenoic acid powder (B); and a liquid material comprising a polymerizable monomer having an acidic group (C), a polymerizable monomer having no acidic group (D), water (E), and at least one basic compound (F) selected from the group consisting of hydroxides of alkali metals, salts of an alkali metal with a weak acid having pKa 3 or more, and aliphatic amines; and also a chemical polymerization initiator (G) is comprised in the powder material and/or the liquid material. The weight ratio of the fluoroaluminosilicate glass particle (A) to the polyalkenoic acid powder (B) in the powder material is in the range of 70:30 to 99:1 and the pH of the liquid material is in the range of 4 to 10.
    • 要解决的问题:提供一种具有优异的牙本质粘附性和保存稳定性的粉末液状牙科树脂富集的玻璃离聚物粘合剂。解决方案:富含粉末液体的牙科树脂富集的玻璃离聚物粘固剂包括含氟铝硅酸盐的粉末材料 玻璃颗粒(A)和聚链烯酸粉末(B); 以及包含具有酸性基团(C)的可聚合单体,不含酸性基团的可聚合单体(D),水(E)和至少一种碱金属化合物(F)的液体材料,所述碱性化合物选自碱金属氢氧化物 金属,具有pKa 3以上的弱酸的碱金属的盐和脂肪族胺; 并且在粉末材料和/或液体材料中还包含化学聚合引发剂(G)。 粉末材料中的氟铝硅酸盐玻璃粒子(A)与聚链烯酸粉末(B)的重量比在70:30〜99:1的范围内,液体材料的pH在4〜10的范围内 。
    • 73. 发明专利
    • Dental curable composition
    • 牙齿可固化组合物
    • JP2014114259A
    • 2014-06-26
    • JP2012271164
    • 2012-12-12
    • Kuraray Noritake Dental Incクラレノリタケデンタル株式会社
    • TAKAHATA YUSUKETSUJI AKIKO
    • A61K6/083
    • PROBLEM TO BE SOLVED: To provide a dental curable composition having good handleability of both paste form retention allowing precise reproduction of tooth crown form and extrusion properties from a container such as syringe, without reduction in mechanical properties.SOLUTION: A dental curable composition comprises a polymerizable monomer (A), a filler (B), a polyglyceryl fatty acid ester (C) and a polymerization initiator (D), where the polyglyceryl fatty acid ester (C) has an average molecular weight of 600 to 1500, the average polymerization degree of glycerin in 1 molecule is 6 to 10, the esterification degree represented by the formula (1) is 5 to 20%, the carbon number of a fatty acid in a fatty acid ester group is 8 to 22, and the polyglyceryl fatty acid ester (C) is 0.01 to 0.5 pts.wt. relative to 100 pts.wt. of the filler (B).
    • 要解决的问题:提供一种具有良好可操作性的牙科用固化性组合物,其具有两种糊状保持性,从而能够从诸如注射器的容器精确地再现牙冠形状和挤出性能,而不降低机械性能。解决方案:牙科用可固化组合物包含 可聚合单体(A),填料(B),聚甘油脂肪酸酯(C)和聚合引发剂(D),其中聚甘油脂肪酸酯(C)的平均分子量为600〜1500,平均聚合度 1分子中甘油的含量为6〜10,式(1)表示的酯化度为5〜20%,脂肪酸酯基中的脂肪酸的碳数为8〜22,聚甘油脂肪酸 酯(C)为0.01〜0.5重量份 相对于100 pts.wt 的填料(B)。
    • 74. 发明专利
    • Asymmetric di-(meth)acrylamide-containing dental composition
    • 不对称二(甲基)丙烯酰胺含量牙齿组合物
    • JP2013209341A
    • 2013-10-10
    • JP2012082061
    • 2012-03-30
    • Kuraray Noritake Dental Incクラレノリタケデンタル株式会社
    • NOJIRI YAMATOTAKEI MITSURU
    • A61K6/083A61C5/08A61C13/00
    • PROBLEM TO BE SOLVED: To provide a dental composition exhibiting excellent adhesion to both dentin and enamel, and having good storage stability because separation of each component hardly occurs.SOLUTION: A dental composition includes a (meth)acrylamide compound (a) represented by general formula (1) and an acid group- containing (meth)acrylic monomer (b). In the formula: X is a 1-6C linear or branched aliphatic group, to which at least one bond selected from the group consisting of -O-, -S-, -CO-O-, -CO-NH-, -O-CO-NH- and -NH-CO-NH- may be inserted; Ris a 1-4C linear or branched aliphatic group; and Rand Rare each independently a hydrogen atom or a methyl group.
    • 要解决的问题:提供对牙本质和牙釉质具有优异粘合性的牙科用组合物,并且由于几乎不发生各组分的分离,因此几乎不发生分离,因此具有良好的储存稳定性。解决方案:牙科用组合物包含由(a)表示的(甲基)丙烯酰胺化合物 式(1)和含酸基的(甲基)丙烯酸单体(b)。 式中X为1-6个直链或支链脂族基,其中至少一个选自-O - , - S-,-CO-O-,-CO-NH-,-O 可以插入-CO-NH-和-NH-CO-NH-; R为1-4C直链或支链脂族基团; 和兰德尔分别独立地为氢原子或甲基。
    • 80. 发明专利
    • Method for producing calcium phosphate composition
    • 生产磷酸钙组合物的方法
    • JP2012236854A
    • 2012-12-06
    • JP2012178209
    • 2012-08-10
    • Kuraray Noritake Dental Incクラレノリタケデンタル株式会社
    • HASHIMOTO TADASHIOKUBAYASHI MASATERUSEKIGUCHI TAKAHIRO
    • A61K6/033A61L27/00C01B25/32
    • PROBLEM TO BE SOLVED: To provide a method for producing a calcium phosphate composition excellent in X-ray radiopacity, whose cured object has high mechanical strength when being used in a clinical field or the like.SOLUTION: In this method for producing calcium phosphate composition, a calcium phosphate composition is produced, which comprises tetracalcium phosphate particles (A), calcium hydrogenphosphate particles (B) and X-ray contrast agent particles (C) with the blending ratio (A/B) between (A) and (B) of 40/60-60/40 in terms of the molar ratio, and which has following properties, after mixing and crushing (B) and (C) and then mixing (A) therewith, namely, the average particle size of (A) is 5-30 μm, the average particle size of (B) is 0.1-5 μm, the average particle size of (A) is larger than the average particle size of (B), the average particle size of (C) is ≤3 μm, and 1-50 pts.wt. (C) is contained with respect to a 100 pts.wt total of (A) and (B), wherein the mean value of X-ray impermeability of a cured object having a thickness of 1 mm obtained by curing the composition at the powder/liquid mixing weight ratio of 2.5 is 3-9 mm in terms of the thickness of an aluminum plate.
    • 待解决的问题:为了提供一种在临床领域等使用时其固化物具有高机械强度的X射线射线不透性优异的磷酸钙组合物的制造方法。 解决方案:在该磷酸钙组合物的制造方法中,制造磷酸钙组合物,其包含磷酸四钙粒子(A),磷酸氢钙粒子(B),X射线造影剂粒子(C) (A)和(B)之间的摩尔比为40 / 60-60 / 40,并且具有以下特性,在混合和破碎(B)和(C)之后,然后混合(A ),即(A)的平均粒径为5-30μm,(B)的平均粒径为0.1〜5μm,(A)的平均粒径大于(A)的平均粒径, B),(C)的平均粒径≤3μm,1-50重量份 相对于(A)和(B)的总共100重量份,含有(C),其中通过使粉末中的组合物固化而获得的厚度为1mm的固化物的X射线不渗透性的平均值 /液体混合重量比为2.5时,铝板的厚度为3-9mm。 版权所有(C)2013,JPO&INPIT