中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

62 records (took 0.012 seconds)

    Ultralow-loss silica glass and optical fibers using the same
    42.
    发明授权
    Ultralow-loss silica glass and optical fibers using the same 有权
    超低损耗石英玻璃和使用其的光纤

    公开(公告)号：US06153546A

    公开(公告)日：2000-11-28

    申请号：US229582

    申请日：1999-01-13

    Applicant: Kazuya Saitoh ,  Akira Ikushima

    Inventor： Kazuya Saitoh ,  Akira Ikushima

    IPC: C03C3/06 ,  C03C13/04

    CPC classification number: C03C13/046 ,  C03B37/014 ,  C03C3/06 ,  G02B6/02 ,  C03B2201/07 ,  C03B2201/30 ,  C03B2201/50 ,  C03B2201/54 ,  C03C2201/40 ,  C03C2201/50 ,  C03C2201/54

    Abstract: This ultralow-loss glass is characterized in that high purity silica glass contains 1 to 500 wt.ppm of at least one network modifying oxide. It is assumed that the network modifying oxide appropriately loosens the tetrahedral network structure of silica and hence Rayleigh scattering is decreased. Examples of the network modifying oxide include Na.sub.2 O, K.sub.2 O, Li.sub.2 O, MgO, CaO, and PbO. Since Rayleigh scattering losses are minimal in comparison with those of high purity silica glass, this impurity-added silica glass is excellent as a base material of a glass fiber for a long-distance transmission.

    Abstract translation: 这种超低损耗玻璃的特征在于，高纯度二氧化硅玻璃含有1至500重量ppm的至少一种网络改性氧化物。 假设网络修饰氧化物适当地松散二氧化硅的四面体网络结构，因此瑞利散射降低。 网络改性氧化物的实例包括Na 2 O，K 2 O，Li 2 O，MgO，CaO和PbO。 由于与高纯度二氧化硅玻璃相比，瑞利散射损失最小，所以这种添加了杂质的石英玻璃作为用于长距离传输的玻璃纤维的基材是优异的。

    Electric incandescent and discharge lamps having doped quartz glass envelopes
    43.
    发明授权
    Electric incandescent and discharge lamps having doped quartz glass envelopes 失效
    具有掺杂石英玻璃信封的电白炽灯和放电灯

    公开(公告)号：US5680010A

    公开(公告)日：1997-10-21

    申请号：US595408

    申请日：1996-02-05

    Applicant: Werner Weiss ,  Gerhard Wagner

    Inventor： Werner Weiss ,  Gerhard Wagner

    IPC: C03C3/06 ,  H01J17/16 ,  H01J61/30

    CPC classification number: C03C3/06 ,  C03C2201/10 ,  C03C2201/32 ,  C03C2201/54 ,  C03C2203/10

    Abstract: Soft quartz glass having low viscosity and a low thermal coefficient of expansion, high electrical insulation capability and free from release of contaminants, when used as a bulb of an incandescent lamp or as an envelope in an arc vessel of a discharge lamp, is a quartz glass made of ultra-pure quartz (SiO.sub.2), for example having a purity of 99.99 mol-%, doped with stoichiometric compounds of alkaline earth oxides with boron oxide, optionally also with a small quantity of Al.sub.2 O.sub.3 in an overall quantity of the doping substance of between about 0.05% to 0.8%, by weight.

    Abstract translation: 当用作白炽灯的灯泡或放电灯的电弧容器中的封套时，具有低粘度和低热膨胀系数，高电绝缘能力并且不会释放污染物的软石英玻璃是石英 用超纯石英（SiO 2）制成的玻璃，例如纯度为99.99mol％，掺杂有化学计量的碱土金属氧化物与氧化硼的化合物，任选地还含有少量的掺杂物质的总量的Al2O3 在约0.05％至0.8％之间。

    Fixation by anion exchange of toxic materials in a glass matrix
    44.
    发明授权
    Fixation by anion exchange of toxic materials in a glass matrix 失效
    通过玻璃基质中有毒物质的阴离子交换固定

    公开(公告)号：US4544499A

    公开(公告)日：1985-10-01

    申请号：US386215

    申请日：1982-06-07

    Applicant: Danh C. Tran ,  Pedro B. Macedo ,  Joseph H. Simmons ,  Catherine J. Simmons ,  Nicholas Lagakos

    Inventor： Danh C. Tran ,  Pedro B. Macedo ,  Joseph H. Simmons ,  Catherine J. Simmons ,  Nicholas Lagakos

    IPC: G21F9/30 ,  G21F9/36 ,  G21F9/16

    CPC classification number: C03C11/005 ,  C03C1/002 ,  C03C1/026 ,  C03C21/001 ,  C03C23/0095 ,  C03C3/06 ,  C03C3/061 ,  C03C3/089 ,  G21F9/305 ,  G21F9/36 ,  C03C2201/10 ,  C03C2201/20 ,  C03C2201/23 ,  C03C2201/3411 ,  C03C2201/3423 ,  C03C2201/3429 ,  C03C2201/40 ,  C03C2201/54 ,  C03C2201/60

    Abstract: This invention relates to the immobilization of toxic, e.g., radioactive materials, internally in a silicate glass or silica gel matrix for extremely long periods of time. Toxic materials, such as radioactive wastes containing radioactive anions, and in some cases cations, which may be in the form of liquids, or solids dissolved or dispersed in liquids or gases, are internally incorporated into a glass matrix, having hydrous organofunctionalsiloxy groups, e.g., hydrous aminoalkylsiloxy or carboxyorganosiloxy, bonded to silicon atoms of said glass and/or hydrous polyvalent metals bonded to silicon atoms of said glass through divalent oxygen linkages or otherwise immobilized therein, by a process which involves the ion exchange of said toxic, radioactive anions with hydroxyl groups attached to said organofunctionalsiloxy groups or with hydroxyl groups attached to the hydrous polyvalent metal. Thereafter, the resulting glass now characterized by a distribution of internally bonded or immobilized, toxic, radioactive anions can be packaged in suitable containers, and disposed of as by burial, and/or they can be sintered to collapse the pores thereof to disposal or for producing useful radiation sources. The porous glass or a porous silica gel having said silicon-bonded organofunctionalsiloxy groups and/or said hydrous polyvalent metal oxy groups, the pores of said glass or silica gel remaining open and uncollapsed, can be used advantageously as a backfill for an underground radioactive waste burial site and as overpack in the waste disposal container. Also included is a novel method for bonding the polyvalent metal to the porous silica glass or gel by substituting the protons of the silicon-bonded hydroxyl groups thereof with an alkali metal or ammonium cation followed by displacement of said cation with the non-radioactive polyvalent metal cation.

    Abstract translation: 本发明涉及在硅酸盐玻璃或硅胶基质中内部有毒的例如放射性物质固定极长时间。 含有放射性阴离子的放射性废物，以及在某些情况下，可能是液体形式的阳离子或溶解或分散在液体或气体中的固体的有毒材料内部加入到具有含水官能团的甲硅烷氧基的玻璃基质中，例如 ，含水氨基烷基甲硅烷氧基或羧基有机基甲硅烷氧基，通过涉及将所述有毒放射性阴离子与所述有机放射性阴离子的离子交换的方法，通过二价氧键键合到所述玻璃的硅原子和/或与所述玻璃的硅原子键合的含水多价金属， 连接到所述有机电致甲硅烷氧基基团的羟基或与水合多价金属连接的羟基的羟基。 此后，所得玻璃的特征在于内部结合或固定的，有毒的放射性阴离子的分布可以包装在合适的容器中，并通过埋置进行处理，和/或它们可以烧结以将其孔隙塌缩以处理或用于 生产有用的辐射源。 所述多孔玻璃或多孔硅胶具有所述与硅键合的有机铁氧基甲硅烷氧基和/或所述含水多价金属氧基，所述玻璃或硅胶的孔保持开放和未破裂，可有利地用作地下放射性废物的回填 垃圾处理容器内的包装物， 还包括一种通过用碱金属或铵阳离子取代与硅键合的羟基的质子，然后用非放射性多价金属置换所述阳离子来将多价金属键合到多孔石英玻璃或凝胶上的新方法 阳离子。

    Fixation by anion exchange of toxic materials in a glass matrix
    45.
    发明授权
    Fixation by anion exchange of toxic materials in a glass matrix 失效
    通过玻璃基质中有毒物质的阴离子交换固定

    公开(公告)号：US4333847A

    公开(公告)日：1982-06-08

    申请号：US65752

    申请日：1979-08-10

    Applicant: Danh C. Tran ,  Pedro B. Macedo ,  Joseph H. Simmons ,  Catherine J. Simmons ,  Nicholas Lagakos

    Inventor： Danh C. Tran ,  Pedro B. Macedo ,  Joseph H. Simmons ,  Catherine J. Simmons ,  Nicholas Lagakos

    IPC: G21F9/02 ,  G21F9/30 ,  G21F9/36 ,  G21F9/16

    CPC classification number: C03C1/002 ,  C03C1/026 ,  C03C11/005 ,  C03C21/001 ,  C03C23/0095 ,  C03C3/06 ,  C03C3/061 ,  C03C3/089 ,  G21F9/02 ,  G21F9/305 ,  G21F9/36 ,  C03C2201/10 ,  C03C2201/20 ,  C03C2201/23 ,  C03C2201/3411 ,  C03C2201/3423 ,  C03C2201/3429 ,  C03C2201/40 ,  C03C2201/42 ,  C03C2201/50 ,  C03C2201/54

    Abstract: This invention relates to the immobilization of toxic, e.g., radioactive materials, internally in a silicate glass or silica gel matrix for extremely long periods of time. Toxic materials, such as radioactive wastes containing radioactive anions, and in some cases cations, which may be in the form of liquids, or solids dissolved or dispersed in liquids or gases, are internally incorporated into a glass matrix, having hydrous organofunctionalsiloxy groups, e.g., hydrous aminoalkylsiloxy or carboxyorganosiloxy, bonded to silicon atoms of said glass and/or hydrous polyvalent metals bonded to silicon atoms of said glass through divalent oxygen linkages or otherwise immobilized therein, by a process which involves the ion exchange of said toxic, radioactive anions with hydroxyl groups attached to said organofunctionalsiloxy groups or with hydroxyl groups attached to the hydrous polyvalent metal. Thereafter, the resulting glass now characterized by a distribution of internally bonded or immobilized, toxic, radioactive anions can be packaged in suitable containers, and disposed of as by burial, and/or they can be sintered to collapse the pores thereof prior to disposal or for producing useful radiation sources. The porous glass or a porous silica gel having said silicon-bonded organofunctionalsiloxy groups and/or said hydrous polyvalent metal oxy groups, the pores of said glass or silica gel remaining open and uncollapsed, can be used advantageously as a backfill for an underground radioactive waste burial site and as overpack in the waste disposal container. Also included is a novel method for bonding the polyvalent metal to the porous silica glass or gel by substituting the protons of the silicon-bonded hydroxyl groups thereof with an alkali metal or ammonium cation followed by displacement of said cation with the non-radioactive polyvalent metal cation.

    Abstract translation: 本发明涉及在硅酸盐玻璃或硅胶基质中内部有毒的例如放射性物质固定极长时间。 含有放射性阴离子的放射性废物，以及在某些情况下，可能是液体形式的阳离子或溶解或分散在液体或气体中的固体的有毒材料内部加入到具有含水官能团的甲硅烷氧基的玻璃基质中，例如 ，含水氨基烷基甲硅烷氧基或羧基有机基甲硅烷氧基，通过涉及将所述有毒放射性阴离子与所述有机放射性阴离子的离子交换的方法，通过二价氧键键合到所述玻璃的硅原子和/或与所述玻璃的硅原子键合的含水多价金属， 连接到所述有机电致甲硅烷氧基基团的羟基或与水合多价金属连接的羟基的羟基。 此后，所得玻璃的特征在于内部结合或固定的，有毒的放射性阴离子的分布可以包装在合适的容器中，并且通过埋置进行处理和/或它们可以在处理之前烧结以使其孔隙塌缩，或 用于生产有用的辐射源。 所述多孔玻璃或多孔硅胶具有所述与硅键合的有机铁氧基甲硅烷氧基和/或所述含水多价金属氧基，所述玻璃或硅胶的孔保持开放和未破裂，可有利地用作地下放射性废物的回填 垃圾处理容器内的包装物， 还包括一种通过用碱金属或铵阳离子取代与硅键合的羟基的质子，然后用非放射性多价金属置换所述阳离子来将多价金属键合到多孔石英玻璃或凝胶上的新方法 阳离子。

    OPTICAL FIBER PREFORM
    49.
    发明申请
    OPTICAL FIBER PREFORM 审中-公开
    光纤预制

    公开(公告)号：US20160318793A1

    公开(公告)日：2016-11-03

    申请号：US15137255

    申请日：2016-04-25

    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

    Inventor： Yoshiaki TAMURA ,  Tetsuya HARUNA ,  Yuki KAWAGUCHI

    IPC: C03C13/04 ,  C03B37/014

    CPC classification number: C03C13/046 ,  C03B37/01211 ,  C03B37/01237 ,  C03B37/0124 ,  C03B37/014 ,  C03B37/01807 ,  C03B37/01861 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2203/22 ,  C03B2203/222 ,  C03C2201/12 ,  C03C2201/50 ,  C03C2201/54

    Abstract: An optical fiber preform of the present embodiment comprises a core portion and a cladding each comprised of silica glass. The core portion has a first dopant region including a central axis of the core portion and a second dopant region away from the central axis. The first dopant region contains a first dopant selected from among Na, K, and their compounds, and a concentration of the first dopant is 10 atomic ppm or more but 2,000 atomic ppm or less. The second dopant region contains a second dopant reducing viscosity of the silica glass. The second dopant has, as a characteristic at a temperature of 2,000° C. to 2,300° C., a diffusion coefficient of 1×10−12 cm2/s or higher but lower than that of the first dopant, and a concentration of the second dopant region is 10 atomic ppm or more.

    Abstract translation: 本实施方式的光纤预制件包括由石英玻璃构成的芯部和包层。 芯部分具有包括芯部分的中心轴线和远离中心轴线的第二掺杂剂区域的第一掺杂区域。 第一掺杂剂区域含有选自Na，K及其化合物的第一掺杂剂，第一掺杂剂的浓度为10原子ppm以上且2000原子ppm以下。 第二掺杂剂区域包含第二掺杂剂，降低石英玻璃的粘度。 作为在2000℃〜2300℃的温度下的特性，第二掺杂剂的扩散系数为1×10-12 cm 2 / s以上但比第一掺杂剂低的扩散系数， 第二掺杂剂区域为10原子ppm以上。

    Rare earth ions doped alkali metal silicate luminescent glass and the preparation method thereof
    50.
    发明授权
    Rare earth ions doped alkali metal silicate luminescent glass and the preparation method thereof 有权
    稀土离子掺杂碱金属硅酸盐发光玻璃及其制备方法

    公开(公告)号：US09156733B2

    公开(公告)日：2015-10-13

    申请号：US13810008

    申请日：2010-07-14

    Applicant: Mingjie Zhou ,  Yanbo Qiao ,  Wenbo Ma

    Inventor： Mingjie Zhou ,  Yanbo Qiao ,  Wenbo Ma

    IPC: C09K11/77 ,  C03C3/083 ,  C03C4/12 ,  C03C21/00 ,  C03C3/06 ,  C03C23/00

    CPC classification number: C03C21/005 ,  C03C3/06 ,  C03C4/12 ,  C03C23/0095 ,  C03C2201/10 ,  C03C2201/3423 ,  C03C2201/3458 ,  C03C2201/36 ,  C03C2201/54 ,  C03C2203/50 ,  C09K11/7774

    Abstract: A preparation method of rare earth ions doped alkaline earth metal silicate luminescent glass is provided. The steps involve: step 1, mixing the source compounds of cerium, terbium and alkaline earth metals and putting the mixture into solvent to get a mixed solution; step 2, impregnating the nanometer pores glass with the mixed solution obtained in step 1; step 3: calcining the impregnated nanometer pores glass obtained in step 2 in a reducing atmosphere, cooling to room temperature, then obtaining the cerium and terbium co-doped alkaline earth metal silicate luminescent glass. Besides, the rare earth ions doped alkaline earth metal silicate luminescent glass prepared with aforesaid method is also provided. In the prepared luminescent glass, cerium ions can transmit absorbed energy to terbium ions under the excitation of UV light due to the co-doping of cerium ions. As a result, the said luminescent glass has higher luminous intensity than the glass only doped with terbium.

    Abstract translation: 提供了稀土离子掺杂的碱土金属硅酸盐发光玻璃的制备方法。 步骤包括：步骤1，混合铈，铽和碱土金属的源化合物，并将混合物置于溶剂中以得到混合溶液; 步骤2，用步骤1中获得的混合溶液浸渍纳米孔玻璃; 步骤3：将在步骤2中获得的浸渍的纳米孔玻璃在还原气氛中煅烧，冷却至室温，然后获得共混掺杂的铈和铽的碱土金属硅酸盐发光玻璃。 此外，还提供了用上述方法制备的稀土离子掺杂的碱土金属硅酸盐发光玻璃。 在制备的发光玻璃中，由于铈离子的共同掺杂，铈离子可以在UV光的激发下将吸收的能量传递给铽离子。 结果，所述发光玻璃比仅掺杂铽的玻璃具有更高的发光强度。

Patent Agency Ranking