利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.017 秒)

    Optical glass of negative anomalous partial dispersion in the blue region
    1.
    发明授权
    Optical glass of negative anomalous partial dispersion in the blue region 失效
    蓝色区域阴性异常分布的光学玻璃

    公开(公告)号：US5137850A

    公开(公告)日：1992-08-11

    申请号：US641751

    申请日：1991-01-16

    申请人： Marc Clement ,  Volkmar Geiler ,  Danuta Grabowski

    发明人： Marc Clement ,  Volkmar Geiler ,  Danuta Grabowski

    IPC分类号： C03C3/072 ,  C03C3/074 ,  C03C3/14 ,  C03C3/145 ,  C03C3/15 ,  C03C3/155 ,  C03C4/00

    CPC分类号： C03C3/072 ,  C03C3/074 ,  C03C3/142 ,  C03C3/155 ,  Y10S501/901 ,  Y10S501/903

    摘要： A chemically resistant glass which can be produced at relatively low melting temperatures and has anomalous negative partial dispersion P.sub.g,F, a refractive index n.sub.d of from 1.73 to 1.83 and an Abbe coefficient v.sub.d of from 31 to 38 preferably contains (in % by weight, based on oxides):______________________________________ 0-4 SiO.sub.2 + GeO.sub.2 0-2 GeO.sub.2 0-10 MgO 26-33 B.sub.2 O.sub.3 0-1 Li.sub.2 O 0-16 CaO 19-50 PbO 0-1 Na.sub.2 O 0-16 BaO 1-6 ZrO.sub.2 0-1 K.sub.2 O 0-16 SrO 4-16 Ta.sub.2 O.sub.5 0-2 .SIGMA. alkaline earth 0-6 Al.sub.2 O.sub.3 metal oxides 0-16 ZnO 0-4 TiO.sub.2 1.5-20 .SIGMA. alkaline earth metal oxides + ZnO 0-1 WO.sub.3 0-11 La.sub.2 O.sub.3 0-7 Nb.sub.2 O.sub.5 0-5.5 Y.sub.2 O.sub.3 0-5.5 Gd.sub.2 O.sub.3 4-11 .SIGMA. La.sub.2 O.sub.3 + Y.sub.2 O.sub.3 + Gd.sub.2 O.sub.3 ______________________________________ with the proviso that the .SIGMA.(SiO.sub.2 +GeO.sub.2 +B.sub.2 O.sub.3)/.SIGMA.(ta.sub.2 O.sub.5 +ZrO.sub.2 +HfO.sub.2) ratio is less than 5 and the PbO/.SIGMA.(SiO.sub.2 +GeO.sub.2 +B.sub.2 O.sub.3) ratio is less than 1.7, and, if desired, conventional refining assistants.

    摘要翻译： 可以在相当低的熔融温度下产生并且具有异常负部分分散度Pg，F，1.73至1.83的折射率nd和31至38的阿贝系数vd的耐化学腐蚀性玻璃优选含有（以重量％计， 基于氧化物）：-0-4SiO 2 + GeO 2 0-2 GeO 2 0-10 MgO -26-33 B 2 O 3 0-1 Li 2 O 0-16 CaO-19-50 PbO 0-1 Na 2 O 0-16 BaO -1-6 ZrO2 0-1 K2O 0-16 SrO - 4-16 Ta2O5 0-2 SIGMA碱土-0-6 Al2O3金属氧化物0-16 ZnO -0-4 TiO2 1.5-20 SIGMA碱土金属氧化物+ ZnO -0-1 WO3 0-11 La2O3 -0-7 Nb2O5 0-5.5 Y2O3-0-5.5 Gd2O3 -4-11 SIGMA La2O3 + Y2O3 + Gd2O3 - 条件是SIGMA（SiO2 + GeO2 + B2O3）/ SIGMA（ta2O5 + ZrO2 + HfO 2）比小于5，PbO / SIGMA（SiO 2 + GeO 2 + B 2 O 3）比小于1.7，如果需要，常规精制助剂。

    Optical glass with negative anomalous partial dispersion
    2.
    发明授权
    Optical glass with negative anomalous partial dispersion 失效
    具有负异常部分分布的光学玻璃

    公开(公告)号：US5100843A

    公开(公告)日：1992-03-31

    申请号：US530597

    申请日：1990-05-31

    申请人： Danuta Grabowski ,  Marc Clement ,  Volkmar Geiler

    发明人： Danuta Grabowski ,  Marc Clement ,  Volkmar Geiler

    IPC分类号： C03C3/072 ,  C03C3/074

    CPC分类号： C03C3/072 ,  C03C3/074 ,  Y10S501/903

    摘要： A glass having a negative anomalous partial dispersion .DELTA.P.sub.g,F, an index of refraction of n.sub.d .gtoreq.1.67 and an Abbe number of .nu..sub.d >36 has the following composition, in % by weight, 3-11 of SiO.sub.2, 0-3 of GeO.sub.2, .SIGMA. SiO.sub.2 +GeO.sub.2, 4.5-11; B.sub.2 O.sub.3, 29-35; 5-13 of Al.sub.2 O.sub.3 ; 1-3 of ZrO.sub.2 ; 0.2-3 of TiO.sub.2 ; 0.2-1.5 of Ta.sub.2 O.sub.5 ; 30-45 of PbO; 0-3 each of Li.sub.2 O, Na.sub.2 O, K.sub.2 O, Rb.sub.2 O, Cs.sub.2 O, .SIGMA. alkali metal oxide 0-3; 0-3.5 each of MgO, CaO, BaO, SrO, .SIGMA. alkaline-earth oxide 0-6, if .SIGMA. SiO.sub.2 and GeO.sub.2 .gtoreq.9; .SIGMA. alkaline-earth oxide 0-3.5, if .SIGMA. SiO.sub.2 and GeO.sub.2

    摘要翻译： 具有负异常部分色散DELTA Pg，F，nd> / = 1.67的折射率和nu d> 36的阿贝数的玻璃具有如下的组成，以重量％计，SiO 2的3-11， 3的GeO2，SIGMA SiO2 + GeO2，4.5-11; B2O3,29-35; 5-13 Al2O3; 1-3的ZrO2; 0.2-3的TiO2; 0.2〜1.5的Ta2O5; 30-45的PbO; 0-3分别为Li2O，Na2O，K2O，Rb2O，Cs2O，SIGMA碱金属氧化物0-3; 0-3.5，如果SIGMA SiO2和GeO2> = 9，MgO，CaO，BaO，SrO，SIGMA碱土金属氧化物0-6; SIGMA碱土金属氧化物0-3.5，如果SIGMA SiO2和GeO2 <9; 0-14的ZnO，0-3的La2O3; 0-7的Nb2O3; 0-1的Sb2O3; 0-0.3的As2O3; WO3的0-1.5; 该玻璃的价格便宜，可以高品质生产，结晶稳定性好，透光率好。

    Barium-free dental glass having good x-ray absorption
    6.
    发明授权
    Barium-free dental glass having good x-ray absorption 失效
    无卤素牙科玻璃具有良好的X射线吸收

    公开(公告)号：US5641347A

    公开(公告)日：1997-06-24

    申请号：US556811

    申请日：1995-11-02

    申请人： Danuta Grabowski ,  Marc Clement ,  Johann Daimer ,  Hartmut Paschke

    发明人： Danuta Grabowski ,  Marc Clement ,  Johann Daimer ,  Hartmut Paschke

    IPC分类号： A61K6/027 ,  A61K6/06 ,  A61K6/08 ,  C03C3/076 ,  C03C3/097 ,  C03C4/00 ,  C03C4/08 ,  A61K6/02

    CPC分类号： C03C4/0007 ,  A61K6/0008 ,  A61K6/0091 ,  A61K6/0215 ,  A61K6/0235 ,  A61K6/024 ,  A61K6/025 ,  A61K6/0255 ,  A61K6/0276 ,  C03C3/076 ,  C03C3/097 ,  C03C4/087

    摘要： Disclosed is a barium-free glass of good x-ray absorption, which has a composition (in wt.-% on the oxide basis) of SiO.sub.2 50-75; ZrO.sub.2 5-30; Li.sub.2 O 0-5; Na.sub.2 O 0-25; K.sub.2 O 0-25; .SIGMA. alkali oxides 0-25. Preferred is a dental glass of the composition of SiO.sub.2 55-70; ZrO.sub.2 10-25; Li.sub.2 O 0-15; Na.sub.2 O 10-25; K.sub.2 O 0-15; .SIGMA. alkaloids 15-25. The glass can furthermore contain also up to 3 wt.-% of fluorine, up to 5 wt.-% of MgO, up to 5 wt.-% of TiO.sub.2, and in each case up to 10 wt.-% of the oxides Al.sub.2 O.sub.3, GeO.sub.2, P.sub.2 O.sub.5, La.sub.2 O.sub.3, Y.sub.2 O.sub.3, Ta.sub.2 O.sub.3, Gd.sub.2 O.sub.3, ZnO and Nb.sub.2 O.sub.5. The glass finds its use in powder form with an average particle size of .ltoreq.10 .mu.m as filler for dental composites for filling teeth.

    摘要翻译： 公开了一种良好X射线吸收的无钡玻璃，其具有SiO 2 50-75的组成（以氧化物为基准的重量％）; ZrO2 5-30; Li2O 0-5; Na2O 0-25; K2O 0-25; SIGMA碱性氧化物0-25。 优选的是SiO 2 55-70的组成的牙科玻璃; ZrO2 10-25; Li 2 O 0-15; Na2O 10-25; K2O 0-15; SIGMA生物碱15-25。 此外，玻璃还可含有至多3重量％的氟，至多5重量％的MgO，至多5重量％的TiO 2，并且在每种情况下至多10重量％的氧化物 Al2O3，GeO2，P2O5，La2O3，Y2O3，Ta2O3，Gd2O3，ZnO和Nb2O5。 该玻璃以粉末形式使用，其平均粒度为