利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

191 条记录 (耗时 0.027 秒)

    GLASKERAMIK FÜR DIE DENTALE RESTAURATION UND VERFAHREN ZU DEREN HERSTELLUNG
    55.
    发明公开
    GLASKERAMIK FÜR DIE DENTALE RESTAURATION UND VERFAHREN ZU DEREN HERSTELLUNG 有权
    陶瓷用于牙齿修复和方法及其

    公开(公告)号：EP1105082A1

    公开(公告)日：2001-06-13

    申请号：EP99923360.4

    申请日：1999-06-09

    申请人： Chemichl AG

    发明人： BEHAM, Gerhard

    IPC分类号： A61K6/02 ,  C03C10/00

    CPC分类号： C03C10/0018 ,  A61K6/0005 ,  A61K6/0008 ,  A61K6/0094 ,  A61K6/0235 ,  A61K6/025 ,  A61K6/026 ,  A61K6/0273 ,  C04B35/19

    摘要： The invention relates to a glass-ceramic material for dental restoration having a high crystalline leucite content. The leucite crystals are needle- or rod-shaped, have a thickness of between 0.3 and 1.5 micrometers and are between 7.5 and 20 micrometers in length. Said glass-ceramic material is substantially semi-transparent and contains, in % by weight: between 67 and 71 % SiO2, between 8 and 12 % Al2O3, between 3 and 5 % Na2O, between 8 and 10 % K2O, between 1 and 3 % CaO, between 0.2 and 2 % BaO, between 0.5 and 2 % CeO2, between 0.2 and 1 % TiO2, and between 0.5 and 2 % B2O3. The above glass-ceramic material presents improved fracture strength and offers new indications for the use of full ceramic materials in dental technology, notably metal-free dental restoration.

    Large size low-expansion ceramic plate and setter, and process for producing the same
    56.
    发明公开
    Large size low-expansion ceramic plate and setter, and process for producing the same 审中-公开
    大尺寸的陶瓷板和载体具有较低Ausdehung和它们的制备方法

    公开(公告)号：EP0997448A3

    公开(公告)日：2000-07-12

    申请号：EP99121350.5

    申请日：1999-10-26

    申请人： NICHIAS CORPORATION

    发明人： Yamamoto, Mitsuo ,  Sakamoto, Kouji ,  Kodaka, Koujirou ,  Yoshimoto, Toshihiro ,  Kayama, Masaaki ,  Shimazaki, Masatoshi

    IPC分类号： C04B35/19

    CPC分类号： C04B35/19

    摘要： Provided are a low-expansion ceramic plate having a length of 500 mm or more, a width of 500 mm or more, and a thickness of 10 mm or less which comprises β-spodumene or β-eucryptite containing 1 to 10% by weight of a metal oxide added as a sintering aid and has a bending strength of 250 to 600 kgf/cm 2 and a low-expansion ceramic setter which comprises β-spodumene or β-eucryptite containing 1 to 50% by weight of zircon and 0.05 to 10% by weight of a metal oxide added as a sintering aid other than zircon and has voids having a diameter of 0.8 to 90 µm and a length of 8 to 90,000 µm scattered at random. The large ceramic plate possesses machinability, low expansion properties, high strength, and high-temperature creep resistance so that it may be processed by cutting, drilling, shiplap or having joint, etc. into complicated shapes demanded for the refractories of muffle furnaces and it can be used as setters of firing furnaces.

    摘要翻译： 本发明提供具有500毫米或者更大，500毫米或更大的宽度，并且厚度为10mm或更小，其包含的β锂辉石或β-锂霞石（重量）的含有1至10％的长度的低膨胀陶瓷板 金属氧化物中加入作为烧结助剂，并具有250〜600弯曲强度千克力/厘米<2>和低膨胀陶瓷设置器，它包括的β锂辉石或β-锂霞石（重量）的锆石和12点05分的含有1〜50％ 重量的金属氧化物加入作为比锆石等的烧结助剂和具有直径为0.8〜90微米和散射在随机的8至90,000微米的长度的空隙的10％。 大陶瓷板具有的可加工性，低膨胀性，高强度，和高温抗蠕变性所以也可以通过切割，钻孔，搭叠或具有关节等进入要求为马弗炉和它的耐火材料复杂的形状进行加工 可作为焙烧炉的制定者。