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    • 2. 发明授权
    • Cement for dental applications
    • 牙科用水泥
    • US08552088B2
    • 2013-10-08
    • US12810081
    • 2008-12-25
    • Hiroki ShinodaMitsuru TakeiHidemi Nakayama
    • Hiroki ShinodaMitsuru TakeiHidemi Nakayama
    • A61K6/08A61K6/083A61K6/06C08F2/50C08J3/28
    • A61K6/083C08L33/04C08L33/26
    • A cement for dental use, containing a first agent and a second agent, wherein both of the first agent and the second agent contain a polymerizable monomer (a) and a filler (b), wherein the first agent and/or the second agent further contains a photopolymerization initiator (c), wherein further as a chemical polymerization initiator (d), either one of the first agent and the second agent contains an oxidizing agent (f) and the other contains a reducing agent (g), the oxidizing agent (f) and the reducing agent (g) constituting a redox polymerization initiator, wherein the photopolymerization initiator (c) contains an α-diketone, and the photopolymerization initiator (c) is contained in a total amount of from 0.010 to 0.100 parts by weight, based on 100 parts by weight of the total amount of the polymerizable monomer (a), wherein the chemical polymerization initiator (d) is contained in a total amount of from 0.001 to 20 parts by weight, based on 100 parts by weight of the total amount of the polymerizable monomer (a), and wherein a cured product has a compression modulus immediately after photocuring of from 100 to 400 MPa, and a compression modulus after 24 hours from photocuring of 500 MPa or more. The cement for dental use of the present invention is suitably used for adhering the dentine and a crowning restorative material in the field of dental therapy, or the like.
    • 一种用于牙科用途的水泥,含有第一试剂和第二试剂,其中第一试剂和第二试剂都含有可聚合单体(a)和填料(b),其中第一试剂和/或第二试剂进一步 含有光聚合引发剂(c),进一步作为化学聚合引发剂(d),第一剂和第二剂中的任一种含有氧化剂(f),另一种含有还原剂(g),氧化剂 (f)和构成氧化还原聚合引发剂的还原剂(g),其中光聚合引发剂(c)含有α-二酮,并且光聚合引发剂(c)的含量为0.010至0.100重量份 ,基于100重量份的可聚合单体(a)的总量,其中化学聚合引发剂(d)的含量为0.001至20重量份,基于100重量份的 总计 t的聚合性单体(a),固化物的光固化后的压缩模量为100〜400MPa,光固化后的压缩弹性模量为500MPa以上。 本发明的牙科用粘合剂适合用于牙科治疗领域中的牙本质和冠状修复材料的粘合等。
    • 3. 发明授权
    • Divided redox-curing type composition
    • 分割氧化还原固化型组合物
    • US08329845B2
    • 2012-12-11
    • US12524043
    • 2008-01-16
    • Mitsuru TakeiHidemi NakayamaHiroki Shinoda
    • Mitsuru TakeiHidemi NakayamaHiroki Shinoda
    • C08F222/14C08F220/26C08F12/24A61K6/08
    • A61K6/005A61K6/0023C08F4/40C09J4/00C08L33/00C08L43/02
    • The present invention provides a divided redox-curing type composition including a first part in which at least an oxidizing agent (b) is dissolved in a first radical monomer including a radical monomer (a) having an acidic group and/or a hydrophilic group; and a second part in which at least an aromatic sulfinate (d) is dispersed in a second radical monomer including a radical monomer (c) having neither an acidic group nor a hydrophilic group. According to the present invention, a redox-curing type composition capable of securing a time necessary for an adhesion operation and exhibiting high bond strength not only at the initial stage of adhesion but also over a long period of time thereafter in application to a wetting material such as a tooth or a bone as well as a tooth crown repairing material such as a metal or porcelain.
    • 本发明提供一种分割的氧化还原固化型组合物,其包含第一部分,其中至少一种氧化剂(b)溶解在包含具有酸性基团和/或亲水基团的自由基单体(a)的第一自由基单体中; 和第二部分,其中至少一种芳族亚磺酸酯(d)分散在包含不具有酸性基团和亲水基团的自由基单体(c)的第二自由基单体中。 根据本发明,一种氧化还原固化型组合物,其不仅在粘合的初始阶段,而且在长时间后,在润湿材料的应用中,可以确保粘合操作所需的时间和显示出高的粘结强度 例如牙齿或骨骼,以及诸如金属或瓷器的牙冠修复材料。