Barium-free, X-ray-opaque dental glass and dental glass/polymer composite, and the use thereof
    2.
    发明授权
    Barium-free, X-ray-opaque dental glass and dental glass/polymer composite, and the use thereof 有权
    无钡,X射线不透明牙科玻璃和牙科玻璃/聚合物复合材料及其用途

    公开(公告)号:US06297181B1

    公开(公告)日:2001-10-02

    申请号:US09427590

    申请日:1999-10-27

    IPC分类号: C03C3062

    摘要: The invention relates to a barium-free, X-ray-opaque dental glass, to a dental glass/polymer composite comprising the glass, and to the use thereof as dental filling, where the dental glass has the following composition (in % by weight): SiO2 20-45, Al2O3 5-35, B2O3 1-10, Na2O 1-10, K2O 0-8, Cs2O 0-8, sum all alkali metal oxides 1-15, CaO 0-8, SrO 0-27, ZnO 2-20, ZrO2 2-10, P2O5 0-10, La2O3 0-10, F 2-20, the total content of B2O3, ZnO, ZrO2 and La2O3 is >20% by weight, and the refractive index nd of the dental glass is in the range from 1.47 to 1.70.

    摘要翻译: 本发明涉及一种不含钡的X射线不透明牙科玻璃,涉及包含玻璃的牙科玻璃/聚合物复合材料及其作为牙科填充物的用途,其中牙科玻璃具有以下组成(重量% ):SiO 2 20-45,Al 2 O 3 5-35,B 2 O 3 1-10,Na 2 O 1-10,K 2 O 8,Cs 2 O 8,总和碱金属氧化物1-15,CaO 0-8,SrO 0-27 ,ZnO 2-20,ZrO 2 2-10,P 2 O 5 0-10,La 2 O 3 0-10,F 2-20,B 2 O 3,ZnO,ZrO 2和La 2 O 3的总含量为> 20重量%,折射率nd为 牙科玻璃的范围为1.47至1.70。

    Preservatives for perishable preparations, in particular for cosmetic and pharmaceutical preparations
    7.
    发明授权
    Preservatives for perishable preparations, in particular for cosmetic and pharmaceutical preparations 有权
    易腐食品的防腐剂,特别是化妆品和药物制剂

    公开(公告)号:US07628997B1

    公开(公告)日:2009-12-08

    申请号:US10030278

    申请日:2000-07-07

    摘要: The method of preserving a perishable cosmetic and/or pharmaceutical preparation includes adding bioactive glass particles to the preparation, preferably in amounts up to 10 percent by weight. The bioactive glass particles preferably have particle sizes (d50) less than or equal to 10 μm and contain from 40 to 60 wt. % SiO2, 10 to 30 wt. % CaO, 10 to 35 wt. % Na2O, 2 to 8 wt. % P2O5, 0 to 25 wt. % CaF2, 0 to 10 wt. % B2O3, 0 to 8 wt. % K2O and/or 0 to 5 wt. % MgO. A liquid cosmetic preparation with alcohol content insufficient for preservation is preserved in an inconspicuous manner by adding bioactive glass particles with particle sizes less than or equal to 10 μm and with a refractive index close enough to that of the liquid cosmetic preparation so that bioactive glass particles are substantially invisible to an observer.

    摘要翻译: 保存易腐化妆品和/或药物制剂的方法包括向制剂中加入生物活性玻璃颗粒,优选以高达10重量%的量加入。 生物活性玻璃颗粒优选具有小于或等于10μm的粒度(d50),并且含有40至60wt。 %SiO 2,10〜30重量% %CaO,10〜35重量% %Na 2 O,2〜8重量% %P 2 O 5,0〜25重量% %CaF 2,0〜10重量% %B2O3,0〜8wt。 %K 2 O和/或0〜5重量% %MgO。 通过添加粒径小于或等于10μm的生物活性玻璃颗粒,并且具有与液体化妆品的折射率接近的折射率,以不明显的方式保存不足以保存的醇含量的液体化妆品,使得生物活性玻璃颗粒 对观察者基本上是不可见的。

    Use of bioactive glass in dental filling material
    8.
    发明授权
    Use of bioactive glass in dental filling material 有权
    在牙科填充材料中使用生物活性玻璃

    公开(公告)号:US07090720B2

    公开(公告)日:2006-08-15

    申请号:US10471148

    申请日:2002-03-08

    IPC分类号: A61K6/06 A61K6/083

    摘要: The dental filling material for a permanent dental filling contains up to 87 percent by weight of a mixture of bioactive glass particles capable of forming a hydroxylapatite layer and conventional non-bioactive dental glass particles surrounded or embedded in a matrix material. The glass particles have an average particle size (d50) less than 50 μm. When the index of refraction of the glass particles at least approximately matches the index of refraction of the matrix material a particularly attractive appearance results when the resulting filling material is used to make a dental filling. When the bioactive glass particles contain fluoride, protection against further caries is provided. The invention also includes a method of making the dental filling material, the dental filling made with it and a binder for binding the dental filling to a tooth.

    摘要翻译: 用于永久牙科填充物的牙科填充材料含有高达87重量%的能够形成羟基磷灰石层的生物活性玻璃颗粒和包围或嵌入基质材料中的常规非生物活性牙科玻璃颗粒的混合物。 玻璃颗粒具有小于50μm的平均粒度(d <50%)。 当玻璃颗粒的折射率至少近似匹配基质材料的折射率时,当所得到的填充材料用于制造牙科填充物时,会产生特别有吸引力的外观。 当生物活性玻璃颗粒含有氟化物时,提供防止进一步龋齿的保护。 本发明还包括制造牙科填充材料,由其制成的牙科填充物和用于将牙科填充物粘合到牙齿上的粘合剂的方法。