Glass sealant containing lead borate glass and fillers of mullite and
cordierite
    1.
    发明授权
    Glass sealant containing lead borate glass and fillers of mullite and cordierite 失效
    玻璃密封胶含有铅玻璃和填充物

    公开(公告)号:US5145803A

    公开(公告)日:1992-09-08

    申请号:US600510

    申请日:1990-10-22

    IPC分类号: C04B37/00 C03C8/10 C03C8/24

    CPC分类号: C03C8/245

    摘要: A glass sealant comprises a mixture of about 70-90% of a solder glass powder of a low-melting lead-borate glass with a transformation temperature of 330.degree. C. or lower, 1-20% by weight of cordierite powder, and 1-25% by weight of mullite powder, with the combined content of cordierite and mullite powder being from about 10-30%. The lead-borate glass comprises from about 82-88% by weight of PbO, 12-17% by weight of B.sub.2 O.sub.3, 0-1% by weight of SiO.sub.2, and 0-1% by weight of Al.sub.2 O.sub.3. Both the cordierite and mullite powder are preferably synthetically produced to reduce the .alpha.-radiation. The synthetically produced cordierite powder preferably still contains up to about 9% by weight of a non-crystalline vitreous phase. The grain size of the powders is preferably under 100 microns. This glass sealant has well-balanced properties relative to thermal expansion, melting temperature, dielectric constant, loss angle, mechanical strength, thermal shock resistance, and chemical resistance. It is particularly suitable as ceramic dual-line package solder (CERDIP) for sealing of aluminum oxide housings for integrated circuits.

    摘要翻译: 玻璃密封剂包括约70-90%的低熔点硼酸铅玻璃的焊料玻璃粉末与转化温度为330℃或更低,1-20重量%的堇青石粉末和1 -25重量%的莫来石粉末,堇青石和莫来石粉末的组合含量为约10-30%。 铅硼酸盐玻璃包含约82-88重量%的PbO,12-17重量%的B 2 O 3,0-1重量%的SiO 2和0-1重量%的Al 2 O 3。 优选合成制备堇青石和莫来石粉末以减少α-辐射。 合成生产的堇青石粉末优选还含有至多约9重量%的非结晶玻璃质相。 粉末的粒径优选在100微米以下。 该玻璃密封剂相对于热膨胀,熔融温度,介电常数,损耗角,机械强度,耐热冲击性和耐化学性而具有良好的平衡性。 特别适用于用于集成电路的氧化铝壳体的密封的陶瓷双线包装焊料(CERDIP)。

    Barium-free dental glass having good x-ray absorption
    2.
    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

    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

    Preparation of very fine glass powder of high purity
    3.
    发明授权
    Preparation of very fine glass powder of high purity 失效
    制备非常精细的高纯玻璃粉末

    公开(公告)号:US5340776A

    公开(公告)日:1994-08-23

    申请号:US881929

    申请日:1992-05-12

    摘要: For the preparation of high purity glass powder having a mean particle size of .ltoreq.10 .mu.m, glass powder having a larger particle size up to 300 .mu.m is ground to the desired particle size in a stirred mill with glass grinding elements in the presence of a grinding liquid comprising water or preferably a mixture of at least 50% by weight of water and at least one water-soluble, oxygen-containing organic compound having 1 to 5 carbon atoms in the molecule, e.g., tert.-butyl alcohol; the ground slurry is then frozen, and the solvent is subsequently removed from the frozen slurry by freeze-drying. A resultant glass powder with a mean particle size d.sub.50 of 0.5 to 2 .mu.m is particularly suitable as a filler for synthetic resins in the dental sector.

    摘要翻译: 为了制备平均粒径为<10μm的高纯度玻璃粉末,具有最大300μm粒度的玻璃粉末在具有玻璃研磨元件的搅拌机中研磨至所需粒度 存在包含水或优选至少50重量%的水和至少一种在分子中具有1至5个碳原子的水溶性含氧有机化合物的混合物的研磨液体,例如叔丁醇 ; 然后将研磨的浆液冷冻,然后通过冷冻干燥从冷冻的浆料中除去溶剂。 平均粒径d50为0.5〜2μm的玻璃粉末特别适用于牙科领域的合成树脂的填料。

    Composite solder glass, filling material for same and methods of using same
    4.
    发明授权
    Composite solder glass, filling material for same and methods of using same 有权
    复合焊锡玻璃,填充材料及其使用方法

    公开(公告)号:US06251810B1

    公开(公告)日:2001-06-26

    申请号:US09360302

    申请日:1999-07-23

    IPC分类号: C03C812

    CPC分类号: C03C8/12 C03C8/245

    摘要: An improved filling material for a composite solder glass based on doped PbTiO3 is disclosed, in which up to 35 atom % of the Pb atoms and up to 35% Ti atoms are replaced by Mg and/or Ca and a portion of O atoms in the doped PbTiO3 is replaced with halogen atoms, preferably fluorine atoms. This filling material and composite solder glasses containing it are useful for hermetic sealing, soldering and/or coating of individual components made of glass material, glass-ceramic material, ceramic material and metal in the manufacturing of components and devices for electrical engineering and electronics, for hermetic encapsulation of electronic components, vacuum-tight seals or closures of display tubes or for display devices. They are also useful for coating and bonding of special glasses. The filling material can be made by reaction sintering of a powder mixture at temperatures of 800° C. to 1250° C.

    摘要翻译: 公开了一种用于基于掺杂的PbTiO 3的复合焊料玻璃的改进的填充材料,其中至多35原子%的Pb原子和至多35%的Ti原子被Mg和/或Ca代替,并且部分O原子在 掺杂的PbTiO 3被卤素原子替代,优选氟原子。 这种填充材料和含有它的复合焊料玻璃在制造用于电气工程和电子学的部件和装置中的玻璃材料,玻璃陶瓷材料,陶瓷材料和金属制成的各个部件的气密密封,焊接和/或涂覆中是有用的, 用于电子部件的气密封装,真空密封或显示管或显示装置的封闭。 它们也可用于特殊眼镜的涂布和粘合。 填充材料可以通过在800℃至1250℃的温度下的粉末混合物的反应烧结来制备。

    Biocompatible infused absorption glass containing FeO
    5.
    发明授权
    Biocompatible infused absorption glass containing FeO 失效
    生物燃料吸收玻璃含有FEO

    公开(公告)号:US5121748A

    公开(公告)日:1992-06-16

    申请号:US699038

    申请日:1991-05-13

    摘要: A biocompatible glass which can be melted using infra-red radiation contains, based on oxide, 65-68% by weight of SiO.sub.2, 0-3% by weight of Li.sub.2 O, 12-14% by weight of Na.sub.2 O, 2.5-4% by weight of K.sub.2 O, 15-17% by weight of .SIGMA. alkali metal oxides, 2-3% by weight of MgO, 4.2-5.5% by weight of CaO, 0-2% by weight of BaO, 3-4 % by weight of Al.sub.2 O.sub.3, 0-1.0 by weight of B.sub.2 O.sub.3 and 2.7-4.1% of FeO. The glass, due to its infra-red meltability and its physiological accertability, is suitable for the encapsulation of sensitive materials, such as transponders or minitransmitters, which are implanted in a living body, or as ampoule glass for melt-encapsulation of sensitive substances.

    摘要翻译: 可以使用红外辐射熔化的生物相容性玻璃包含基于氧化物,65-68重量%的SiO 2,0-3重量%的Li 2 O,12-14重量%的Na 2 O,2.5-4重量% 重量K2O,15-17重量%的SIGMA碱金属氧化物,2-3重量%的MgO,4.2-5.5重量%的CaO,0-2重量%的BaO,3-4重量%的 Al2O3,0-1.0重量%的B2O3和2.7-4.1%的FeO。 该玻璃由于其红外线的熔融性和生理上的可靠性,适用于植入生物体中的敏感材料(例如转发器或微型传递器)的包封,或适用于敏感物质的熔融包封的安瓿玻璃。

    Lead-zinc-borosilicate glass
    6.
    发明授权
    Lead-zinc-borosilicate glass 失效
    铅锌合金玻璃

    公开(公告)号:US5096620A

    公开(公告)日:1992-03-17

    申请号:US657045

    申请日:1991-02-19

    摘要: Lead-zinc-borosilicate glass is provided having a boundary wetting angle with respect to ZnO of at most 40.degree., a processing temperature of at most 540.degree. C., a composition, consisting essentially of, in percent by weight on oxide basis, of______________________________________ 4.0-7.0 SiO.sub.2 13.0-17.0 B.sub.2 O.sub.3 43.0-50.0 PbO 24.0-29.0 ZnO 4.0-7.0 CuO 1.5-2.5 Al.sub.2 O.sub.3 ______________________________________ and optionally 0-3 SnO.sub.2, Bi.sub.2 O.sub.3 or MoO.sub.3, as well as 0-1 Cr.sub.2 O.sub.3. The glass is particularly suitable for sealing electronic components, especially varistors made of zinc oxide, as well as a sintering aid for zinc oxide ceramics, especially in the production of varistors from zinc oxide.

    摘要翻译: 提供了铅锌硼硅酸盐玻璃,其相对于ZnO的边界润湿角至多为40°,加工温度至多为540℃,组成基本上由以氧化物为基准的重量百分比组成 -4.0-7.0 SiO 2 -13.0-17.0 B 2 O 3 -43.0-50.0 PbO-24.0-29.0 ZnO -4.0-7.0 CuO -1.5-2.5 Al 2 O 3和任选的0-3 SnO 2,Bi 2 O 3或MoO 3以及0-1 Cr 2 O 3。 该玻璃特别适用于密封电子元件,特别是用氧化锌制成的压敏电阻,以及用于氧化锌陶瓷的烧结助剂,特别是在生产氧化锌压敏电阻时。

    Barium-free, X-ray-opaque dental glass and dental glass/polymer composite, and the use thereof
    7.
    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。

    Production of composite glass powder of any desired particle size from a
particulate multicomponent mixture
    9.
    发明授权
    Production of composite glass powder of any desired particle size from a particulate multicomponent mixture 失效
    从颗粒状多组分混合物制备任何所需粒度的复合玻璃粉末

    公开(公告)号:US5286269A

    公开(公告)日:1994-02-15

    申请号:US969880

    申请日:1992-11-02

    CPC分类号: C03C8/245 C23D1/00 C23D1/02

    摘要: For the production of a composite glass powder of any particle size from a fine particle size, multi-component mixture of a low-melting glass powder, fillers, and additives, the fine particle size, multicomponent mixture is sintered for 10-60 minutes at a temperature at which the base glass has a viscosity of 10.sup.5 to 10.sup.6.5 dPas, and the resultant sintered cake is ground to a powder of the desired particle size. If the multicomponent mixture comprises components decomposable with the release of gas, e.g., copper carbonate, the latter are decomposed prior to sintering at a temperature below the sintering temperature. The resultant composite glass powder containing copper oxide can be used for coating varistors.

    摘要翻译: 为了生产细粒度的任何粒度的复合玻璃粉末,低熔点玻璃粉末,填充剂和添加剂的多组分混合物,将微粒尺寸的多组分混合物烧结10-60分钟 基底玻璃的粘度为105〜106.5dPa·s的温度,将得到的烧结块研磨成所需粒径的粉末。 如果多组分混合物包含可释放气体的成分,例如碳酸铜,则后者在烧结温度低于烧结温度的温度下分解。 所得到的含有氧化铜的复合玻璃粉末可用于涂覆压敏电阻。

    Process of and apparatus for leading an optical waveguide through a wall
via a hermetic seal
    10.
    发明授权
    Process of and apparatus for leading an optical waveguide through a wall via a hermetic seal 失效
    用于通过气密密封件将光波导引导通过壁的过程和装置

    公开(公告)号:US4904046A

    公开(公告)日:1990-02-27

    申请号:US320639

    申请日:1989-03-08

    IPC分类号: G02B6/00 G02B6/42

    CPC分类号: G02B6/4248

    摘要: To lead an optical waveguide through a housing wall, the optical waveguide is, in one section freed of its protective layer and hermetically connected in a bushing by glass soldering it to the bushing. In at least one load-relieving section leading out of the bushing, the optical waveguide is fastened by its protective layer to an extension of the bushing. The bushing is hermetically set into the housing wall.

    摘要翻译: 为了引导光波导通过壳体壁,光波导在一个部分中没有其保护层,并且通过将衬套玻璃焊接到套管而在衬套中气密连接。 在从衬套引出的至少一个卸载部分中,光波导通过其保护层紧固到衬套的延伸部。 衬套被气密地设置在壳体壁中。