Magnetic head cleaner
    32.
    发明授权
    Magnetic head cleaner 有权
    磁头清洁剂

    公开(公告)号:US06433961B1

    公开(公告)日:2002-08-13

    申请号:US09669564

    申请日:2000-09-26

    IPC分类号: G11B541

    CPC分类号: G11B15/675 G11B5/41

    摘要: In a magnetic head cleaner (4) for use in a magnetic recording/reproducing apparatus having a magnetic head (61) located in the neighborhood of the center of gravity of a head driving mechanism (62), an arm (41) which is retractably swung along the front face of the magnetic head (61) is provided with a holder (45) for enabling a cleaner head (48) to perform a contact/separate operation to/from the front face of the magnetic head (61), the holder (45) being operated so that the cleaner head (48) comes into contact with the front face of the magnetic head (61) when the arm (41) is located in front of the front face of the magnetic head (61), and being guided so as to be separated from the magnetic head (61) by guide means (7) provided to a frame (1) of the apparatus at the stage that the arm (41) is retracted from the front face of the magnetic head (61).

    摘要翻译: 在用于具有位于头驱动机构(62)的重心附近的磁头(61)的磁记录/重放装置的磁头清洁器(4)中,可伸缩的臂(41) 沿着磁头(61)的前表面摆动设置有用于使清洁器头(48)能够与磁头(61)的前表面进行接触/分离操作的保持器(45), 当臂(41)位于磁头(61)的前表面的前方时,保持器(45)被操作以使得清洁器头(48)与磁头(61)的前表面接触, 并且被引导为通过设置在设备的框架(1)上的引导装置(7)与磁头(61)分离,在臂(41)从磁头的前表面缩回的阶段 (61)。

    Process for refining methacrylic acid
    33.
    发明授权
    Process for refining methacrylic acid 失效
    甲基丙烯酸精制方法

    公开(公告)号:US5959142A

    公开(公告)日:1999-09-28

    申请号:US550801

    申请日:1995-10-31

    CPC分类号: C07C51/44 C07C51/48

    摘要: A process for producing refined methacrylic acid comprising the steps of oxidizing methacrolein and the like catalytically in a vapor phase to form a methacrylic acid-containing gas, cooling and condensing the gas to an aqueous methacrylic acid solution, adding to the solution an organic solvent that forms two liquid phases with water to carry out an extraction operation and thereby to obtain an extract, bringing the extract into contact with water to mix them together, separating the mixture into an organic phase and a water phase, and distilling the organic phase. According to this process, highly refined methacrylic acid containing little dibasic acids such as maleic acid and citraconic acid can be obtained economically and without increasing wastes that are unrecoverable to the process.

    摘要翻译: 一种生产精制甲基丙烯酸的方法,包括在气相中催化氧化甲基丙烯醛等以形成含甲基丙烯酸的气体,将气体冷却并冷凝至甲基丙烯酸水溶液的步骤,向该溶液中加入有机溶剂, 与水形成两个液相以进行萃取操作,从而获得提取物,使提取物与水接触以将它们混合在一起,将混合物分离成有机相和水相,并蒸馏出有机相。 根据该方法,可以经济地获得含有少量二元酸如马来酸和柠康酸的高度精制的甲基丙烯酸,而不会增加不可回收的方法的废物。

    Direct hemoperfusion adsorber packed with adsorbent having water insoluble microparticle removed therefrom, and method of obtaining direct hemoperfusion adsorbent having water insoluble microparticle removed therefrom
    34.
    发明授权
    Direct hemoperfusion adsorber packed with adsorbent having water insoluble microparticle removed therefrom, and method of obtaining direct hemoperfusion adsorbent having water insoluble microparticle removed therefrom 有权
    用从其中除去水不溶性微粒的吸附剂填充的直接血液灌注吸附器,以及从其中除去具有水不溶性微粒的直接血液灌注吸附剂的方法

    公开(公告)号:US08272518B2

    公开(公告)日:2012-09-25

    申请号:US11572542

    申请日:2005-07-20

    IPC分类号: B01D24/10 B01D24/12 B01D39/00

    摘要: The present invention has its object to provide a direct hemoperfusion adsorber packed with an adsorbent made by using a water-insoluble carrier having a relatively readily available particle size distribution, with water-insoluble microparticles having been removed therefrom, without needing any special granulation apparatus or coating apparatus, and method of obtaining a direct hemoperfusion adsorbent having water-insoluble microparticles removed therefrom.Now, a direct hemoperfusion adsorber has been obtained that is packed with an adsorbent having a number average particle diameter of not smaller than 300 μm but not larger than 600 μm, with the coefficient of variance in particle diameter distribution being not lower than 10% but not higher than 20%, and having water-insoluble microparticles removed therefrom to a safe level, without the loss of the adsorbent, by using a water-insoluble microparticle-removing-mesh such that the ratio of the mesh opening size for removing water-insoluble microparticles to the mesh opening size of the adsorber is not lower than 1.3 but not higher than 1.5.

    摘要翻译: 本发明的目的是提供一种直接血液灌注吸附器,其中填充有通过使用具有相对容易获得的粒度分布的水不溶性载体制备的吸附剂,其中不溶性微粒被除去,不需要任何特殊的造粒装置或 涂布装置以及从其中除去具有水不溶性微粒的直接血液灌注吸附剂的方法。 现在,已经获得了直接血液灌注吸附器,其中填充有数均粒径不小于300μm但不大于600μm的吸附剂,其粒径分布的变异系数不低于10%,但是 不高于20%,并且通过使用不溶于水的微粒去除网,使除去水溶性微粒的网孔尺寸的比例,将水不溶性微粒除去,达到安全水平,而不损失吸附剂, 不溶性微粒与吸附剂的网孔尺寸不小于1.3,但不高于1.5。

    Direct Hemoperfusion Adsorber Packed with Adsorbent Having Water Insoluble Microparticle Removed Therefrom, and Method of Obtaining Direct Hemoperfusion Adsorbent Having Water Insoluble Microparticle Removed Therefrom
    39.
    发明申请
    Direct Hemoperfusion Adsorber Packed with Adsorbent Having Water Insoluble Microparticle Removed Therefrom, and Method of Obtaining Direct Hemoperfusion Adsorbent Having Water Insoluble Microparticle Removed Therefrom 有权
    直接血液灌注吸附剂,其中吸附有不溶于水的微粒被除去的吸附剂,以及从其中除去具有水不溶性微粒的直接血液灌注吸附剂的方法

    公开(公告)号:US20080314817A1

    公开(公告)日:2008-12-25

    申请号:US11572542

    申请日:2005-07-20

    IPC分类号: A61M1/36 A61L33/00 B01J20/28

    摘要: The present invention has its object to provide a direct hemoperfusion adsorber packed with an adsorbent made by using a water-insoluble carrier having a relatively readily available particle size distribution, with water-insoluble microparticles having been removed therefrom, without needing any special granulation apparatus or coating apparatus, and method of obtaining a direct hemoperfusion adsorbent having water-insoluble microparticles removed therefrom.Now, a direct hemoperfusion adsorber has been obtained that is packed with an adsorbent having a number average particle diameter of not smaller than 300 μm but not larger than 600 μm, with the coefficient of variance in particle diameter distribution being not lower than 10% but not higher than 20%, and having water-insoluble microparticles removed therefrom to a safe level, without the loss of the adsorbent, by using a water-insoluble microparticle-removing-mesh such that the ratio of the mesh opening size for removing water-insoluble microparticles to the mesh opening size of the adsorber is not lower than 1.3 but not higher than 1.5.

    摘要翻译: 本发明的目的是提供一种直接血液灌注吸附器,其中填充有通过使用具有相对容易获得的粒度分布的水不溶性载体制备的吸附剂,其中不溶性微粒被除去,不需要任何特殊的造粒装置或 涂布装置以及从其中除去具有水不溶性微粒的直接血液灌注吸附剂的方法。 现在,已经获得了填充数均粒径不小于300μm但不大于600μm的吸附剂的直接血液灌注吸附器,其粒径分布的变异系数不低于10%,但是 不高于20%,并且通过使用不溶于水的微粒去除网,使除去水溶性微粒的网孔尺寸的比例,将水不溶性微粒除去,达到安全水平,而不损失吸附剂, 不溶性微粒与吸附剂的网孔尺寸不小于1.3,但不高于1.5。

    Cross-Linked Polymer Particle and Manufacturing Method Thereof
    40.
    发明申请
    Cross-Linked Polymer Particle and Manufacturing Method Thereof 审中-公开
    交联聚合物颗粒及其制造方法

    公开(公告)号:US20080154007A1

    公开(公告)日:2008-06-26

    申请号:US11722877

    申请日:2005-12-28

    IPC分类号: C08F220/10

    摘要: Crosslinked polymer particles that are useful as an adsorbent, or carrier thereof, for treatment of a liquid containing physiological substance and/or cells, etc., such as body fluid, and that is reduced in the activation of complement system and leukocytes; and a process for producing polymer particles being useful as an adsorbent/treating material, or carrier thereof, for treatment of body fluid. In particular, there are provided crosslinked polymer particles comprising as a constituent a polymerization unit containing a vinyl alcohol unit and nitrogen-containing polymerization unit, wherein the content of nitrogen base on the whole weight of grains in the dry state as determined by elementary analysis is in the range of 7.0 to 13.0 weight %, and wherein the surface nitrogen content determined by X-ray photoelectron spectroscopy (XPS) is in the range of 5.0 to 15.0 at %. Further, there are provided crosslinked polymer particles of 50 to 3000 μm volume average particle diameter, of which ≧80 volume % particles have a diameter of 0.8 to 1.2 times the volume average particle diameter, obtained by first forming liquid drops of uniform diameter consisting of a monomer mixture in a dispersion medium and subsequently polymerizing the liquid drops under conditions avoiding cohesion or additional dispersion thereof, optionally further conducting treatment or modification; and is provided a relevant process for producing polymer particles.

    摘要翻译: 可用作吸附剂或其载体的交联聚合物颗粒,用于处理含有生理物质和/或细胞等的液体,例如体液,并且减少补体系统和白细胞的活化; 以及用于制备用作治疗体液的吸附剂/处理材料或其载体的聚合物颗粒的方法。 特别地,提供了包含含有乙烯醇单元和含氮聚合单元的聚合单元作为组分的交联聚合物颗粒,其中通过元素分析确定的干燥状态下的整个颗粒重量中的氮碱含量为 在7.0〜13.0重量%的范围内,通过X射线光电子能谱(XPS)测定的表面氮含量为5.0〜15.0原子%。 此外,提供了50〜3000μm体积平均粒径的交联聚合物粒子,其中> = 80体积%的粒子的直径为体积平均粒径的0.8〜1.2倍,通过首先形成均匀直径的液滴得到, 的分散介质中的单体混合物,随后在避免内聚或其另外分散的条件下聚合液滴,任选进一步进行处理或改性; 并提供了生产聚合物颗粒的相关方法。