Process for producing zirconium sols and gels, and process for producing
zirconia using the same
    1.
    发明授权
    Process for producing zirconium sols and gels, and process for producing zirconia using the same 失效
    锆溶胶和凝胶的制造方法以及使用其制造氧化锆的方法

    公开(公告)号:US4863706A

    公开(公告)日:1989-09-05

    申请号:US118940

    申请日:1987-11-10

    摘要: A process for producing acidic boratozirconium chloride sols which comprises: reacting a zirconium compound with a boron compound in molar ratios of B/Zr of 0.3-1.2 together with a compound of a metal M, the metal M being selected from the group consisting of divalent, trivalent, tetravalent and pentavalent metals in molar ratios of M/Zr of about 0.01-1 in water in the presence of chloride ions in molar ratios of Cl/Zr of not less than about 1.The acidic boratozirconium chloride sol may be converted to basic boratozirconium sols by reacting the acidic sol with a basic carbonate compound such as ammonium carbonate.The sols, either acidic or basic, are readily gelled by contact with a dehydration solvent such as methanol or actone.The gel is calcined at relatively low temperatures to provide zirconia which is either very pure or stabilized in varied degrees.

    摘要翻译: 一种酸性硼酸锆酸盐溶胶的制造方法,其特征在于,使锆化合物与B / Zr的摩尔比为0.3〜1.2的硼化合物与金属M的化合物反应,金属M选自二价 ,在Cl / Zr摩尔比不小于约1的氯离子存在下,摩尔比为约0.01-1的M / Zr摩尔比为三价,四价和五价金属。酸性硼酸锆氯化物溶胶可以转化为 碱性硼酸锆溶胶通过使酸性溶胶与碱式碳酸酯化合物如碳酸铵反应。 酸性或碱性溶胶通过与脱水溶剂如甲醇或活性酮接触而容易凝胶化。 凝胶在相对较低的温度下煅烧,以提供非常纯净或稳定不同程度的氧化锆。

    Process for producing zirconium sols and gels, and process for producing
zirconia using the same
    3.
    发明授权
    Process for producing zirconium sols and gels, and process for producing zirconia using the same 失效
    锆溶胶和凝胶的制造方法以及使用其制造氧化锆的方法

    公开(公告)号:US4731234A

    公开(公告)日:1988-03-15

    申请号:US947417

    申请日:1986-12-24

    摘要: A process for producing acidic boratozirconium chloride sols which comprises: reacting a zirconium compound with a boron compound in molar ratios of B/Zr of 0.3-1.2 together with a compound of a metal M other than boron, the metal M being selected from the group consisting of divalent, trivalent, tetravalent and pentavalent metals in molar ratios of M/Zr of about 0.01-1 in water in the presence of chloride ions in molar ratios of Cl/Zr of not less than about 1.The acidic boratozirconium chloride sol may be converted to basic boratozirconium sols by reacting the acidic sol with a basic carbonate compound such as ammonium carbonate.The sols, either acidic or basic, are readily gelled by contact with a dehydration solvent such as methanol or acetone.The gel is calcined at relatively low temperatures to provide zirconia which is either very pure or stabilized in varied degrees.

    摘要翻译: 一种酸性硼酸锆化合物溶胶的制造方法,其特征在于,使锆化合物与B / Zr的摩尔比为0.3〜1.2的硼化合物与除了硼以外的金属M的化合物反应,金属M选自 在氯离子存在下,以Cl / Zr摩尔比不低于约1,摩尔比为约0.01-1的M / Zr的二价,三价,四价和五价金属组成。酸性硼酸锆氯化物溶胶可以 通过使酸性溶胶与碱式碳酸酯化合物如碳酸铵反应而转化成碱性硼酸锆溶胶。 酸性或碱性的溶胶通过与脱水溶剂如甲醇或丙酮接触而容易凝胶化。 凝胶在相对较低的温度下煅烧,以提供非常纯净或稳定不同程度的氧化锆。

    Hydraulic inorganic composition and molded articles thereof
    4.
    发明授权
    Hydraulic inorganic composition and molded articles thereof 失效
    液压无机组合物及其成型品

    公开(公告)号:US5154771A

    公开(公告)日:1992-10-13

    申请号:US553816

    申请日:1990-07-19

    IPC分类号: C04B24/38 C04B28/04

    CPC分类号: C04B24/38 C04B28/04

    摘要: A hydraulic inorganic compositions which comprises a hydraulic inorganic powder at least one of polysaccharides selected from the group consisting of .beta.-1,3-glucans, pullulan and XCD-Polymer in an amount of 0.1-10 parts by weight in relation to 100 parts by weight of the hydraulic inorganic powder, and water in an effective amount.The composition preferably further contains a reinforcing fiber, a filler, in particular mountain leather, a coagulant and/or a second molding aid, in particular, methyl cellulose.The composition is hardened by hydration under normal pressure to provide a hardened molded article such as a cement board.

    Developer carrier with a dielectric layer having a frequency
characteristic confined in a predetermined range
    5.
    发明授权
    Developer carrier with a dielectric layer having a frequency characteristic confined in a predetermined range 失效
    具有限定在预定范围内的频率特性的介电层的显影剂载体

    公开(公告)号:US5136335A

    公开(公告)日:1992-08-04

    申请号:US670406

    申请日:1991-03-15

    IPC分类号: G03G15/08

    CPC分类号: G03G15/0818

    摘要: A developing device for use in an image forming apparatus and having a developing roller, developing sleeve or similar developer carrier for supplying a one-component developer, or toner, to a latent image which is electrostatically formed on an image carrier such as a photoconductive element. A dielectric layer forming part of the developer carrier and closely related to the fluctuation of developing characteristic has a frequency characteristic which is confined in a predetermined range. Hence, the device is operable in a desirable manner by confining the fluctuation of developing characteristic ascribable to that of developing linear speed in a predetermined range without resorting to the actual measurement of a response characteristic of a developer carrier.

    摘要翻译: 一种用于图像形成装置并具有显影辊,显影套筒或类似的显影剂载体的显影装置,用于将单组分显影剂或调色剂供应到静电形成在诸如光电导元件的图像载体上的潜像 。 形成显影剂载体的一部分并且与显影特性波动紧密相关的介电层具有被限制在预定范围内的频率特性。 因此,通过将显影特性所引起的显影特性的波动限制在规定的范围内,不需要借助于显影剂载体的响应特性的实际测量,可以使该装置可操作。

    Data retrieval system and method within a constant angular velocity
CD-ROM
    7.
    发明授权
    Data retrieval system and method within a constant angular velocity CD-ROM 失效
    恒定角速度CD-ROM内的数据检索系统和方法

    公开(公告)号:US5703850A

    公开(公告)日:1997-12-30

    申请号:US666776

    申请日:1996-06-18

    申请人: Takeo Wada

    发明人: Takeo Wada

    摘要: A method and system retrieving data stored on a compact disk read only memory (CD-ROM) device using the constant angular velocity (CAV) reading technique. Unlike the constant linear acceleration (CLA) reading technique, in the CAV reading technique the data retrieval rates of the CD-ROM read head vary depending on the radius of the annular recording track that is being read. Data rates can be as much as 2.5.times. faster for the outer recording tracks compared to the inner recording tracks. The novel system utilizes a narrow capture band phase lock loop circuit in conjunction with a microcontroller which controls the center frequency supplied to the phase lock loop circuit. The microcontroller adjusts the center frequency of the phase lock loop circuit depending on the track (e.g., radius) position of the read head of the CD-ROM device. With the center frequency adjusted close to the data rate of the current track, the phase lock loop circuit needs only a narrow capture band to accurately retrieve the read reference clock from the current track. In one embodiment, the microcontroller is aware of the read head position because it controls read head movement. A microcontroller controlled programmable oscillator (e.g., synthesizer) is used in one embodiment of the novel system to generate the required center frequencies. Direct computation or a look-up table based on the read head position can be used by the microcontroller to determine the required center frequencies. A decoder is supplied with the read reference clock for data decoding.

    摘要翻译: 一种使用恒定角速度(CAV)读取技术检索存储在光盘只读存储器(CD-ROM)设备上的数据的方法和系统。 与恒定线性加速(CLA)读取技术不同,在CAV读取技术中,CD-ROM读取头的数据检索速率根据正在读取的环形记录轨道的半径而变化。 与内部记录轨道相比,外部记录轨道的数据速率可以高出2.5倍。 该新颖系统与控制提供给锁相环电路的中心频率的微控制器结合使用窄捕获带锁相环电路。 微控制器根据CD-ROM设备的读取头的轨迹(例如,半径)位置来调节锁相环电路的中心频率。 当中心频率调整为接近当前音轨的数据速率时,锁相环电路仅需要窄的捕获频带,以便从当前音轨精确检索读取的参考时钟。 在一个实施例中,微控制器知道读头的位置,因为它控制读头的运动。 在新颖系统的一个实施例中使用微控制器控制的可编程振荡器(例如,合成器)来产生所需的中心频率。 微控制器可以使用基于读取头位置的直接计算或查找表来确定所需的中心频率。 解码器被提供有用于数据解码的读取参考时钟。

    Method for the production of a zeolite material
    9.
    发明授权
    Method for the production of a zeolite material 失效
    沸石材料的生产方法

    公开(公告)号:US3981970A

    公开(公告)日:1976-09-21

    申请号:US163317

    申请日:1971-07-16

    摘要: Method for production of a zeolitic material represented by the formula:R.sub.x H.sub.5.sub.-x (Al.sub.y Fe.sub.1.sub.-y).sub.4 (P.sub.l As.sub.1.sub.-l).sub.3 O.sub.16.zH.sub.2 Owherein R represents Na or K, x, y, z and l are numerical values of O.ltoreq.x.ltoreq.5, O.ltoreq.y.ltoreq.1, Z.ltoreq.9 and O.ltoreq.l.ltoreq.1, respectively; which comprises preparing an aqueous solution by dissolving (1) at least one source of aluminum and iron, (2) at least one source of phosphorus and arsenic and (3) at least one source of sodium and potassium in water in the ranges expressed in terms of the molar ratios of their oxides of3.5.ltoreq.(Al, Fe).sub. 2 O.sub.3 /(P, As).sub. 2 O.sub.5 .ltoreq.4.5and(K, Na).sub.2 O/(Al, Fe) .sub.2 O.sub.3 >0.12adjusting the pH of the solution to within the range of the cross-hatched area in FIGS. 1 to 4 and heating the solution at 150 to 250.degree.C in a closed vessel to crystallize the zeolitic material and recovering the objective zeolitic material. The aforementioned zeolitic material is useful for recovering metallic cations from an aqueous solution containing such metallic cations.

    摘要翻译: 用于制备由下式表示的沸石材料的方法:

    Thermal image forming equipment forms image directly on image carrier or
paper sheet
    10.
    发明授权
    Thermal image forming equipment forms image directly on image carrier or paper sheet 失效
    热成像设备直接在图像载体或纸张上形成图像

    公开(公告)号:US5300952A

    公开(公告)日:1994-04-05

    申请号:US782609

    申请日:1991-10-25

    摘要: Image forming equipment for applying heat to a charged image carrier to attenuate part of the potential of the image carrier in order to form a latent image on the image carrier. The surface of a dielectric image carrier is charged by a charger and a thermal print head is driven in response to image information in order to form a latent image on the charged surface of the image carrier. A developing roller applies a liquid developer to the latent image and presses it against the portion where the potential has been lowered. The resulting toner image formed on the image carrier is fixed on a paper sheet fed from a paper feeding device or is directly fixed on the image carrier. The image carrier is formed of polyethylene terephthalate or a mixture of polybutylene terephthalate and silicon dioxide.

    摘要翻译: 用于向充电的图像载体施加热量以衰减图像载体的一部分电位以便在图像载体上形成潜像的图像形成设备。 电介质图像载体的表面由充电器充电,响应于图像信息驱动热敏打印头,以在图像载体的带电表面上形成潜像。 显影辊将液体显影剂施加到潜像上并将其压在电位降低的部分上。 形成在图像载体上的所得到的调色剂图像被固定在从送纸装置供给的纸张上,或直接固定在图像载体上。 图像载体由聚对苯二甲酸乙二醇酯或聚对苯二甲酸丁二醇酯和二氧化硅的混合物形成。