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    Melt-spun polysulfone semipermeable membranes and methods for making the same
    2.
    发明授权
    Melt-spun polysulfone semipermeable membranes and methods for making the same 失效
    熔融聚砜半透膜及其制备方法

    公开(公告)号：US06218441B1

    公开(公告)日：2001-04-17

    申请号：US09317657

    申请日：1999-05-24

    申请人： Timothy B. Meluch ,  Chung-Yuan Chiang ,  Hamid Jaanine ,  Thanh Nguyen ,  John M. Radovich ,  Kees Ruzius ,  Lalith K. Silva ,  George Washington

    发明人： Timothy B. Meluch ,  Chung-Yuan Chiang ,  Hamid Jaanine ,  Thanh Nguyen ,  John M. Radovich ,  Kees Ruzius ,  Lalith K. Silva ,  George Washington

    IPC分类号： C08J900

    CPC分类号： B01D67/0011 ,  B01D67/0027 ,  B01D67/003 ,  B01D69/08 ,  B01D71/68 ,  B01D2323/08 ,  B01D2323/12 ,  C08J3/091 ,  C08J2381/06

    摘要： The present invention discloses, inter alia, a composition useful for producing a homogeneous, semipermeable membrane, the composition comprising (1) a polysulfone compound, (2) a solvent, such as sulfolane, antypyrine, &dgr;-valerolactam, diethyl phthalate, and mixtures thereof, and (3) a non-solvent, such as poly(ethylene glycol), di(ethylene glycol), tri(ethylene glycol), glycerol, and mixtures thereof. Another aspect of this invention discloses methods for fabricating semipermeable membranes by homogeneously mixing the composition of the polysulfone compound, solvent, and non-solvent, melting the composition, and melt-spinning the molten composition. Another aspect of the present invention includes homogeneous, melt-spun, semipermeable membranes useful for liquid separation processes, such as, but not limited to, microfiltration, ultrafiltration, dialysis, and reverse osmosis.

    摘要翻译： 本发明尤其公开了一种用于制备均匀的半透膜的组合物，该组合物包含（1）聚砜化合物，（2）溶剂如环丁砜，茴香吡啶，δ-戊内酰胺，邻苯二甲酸二乙酯和混合物 ，和（3）非溶剂如聚（乙二醇），二（乙二醇），三（乙二醇），甘油及其混合物。 本发明的另一方面公开了通过均匀混合聚砜化合物，溶剂和非溶剂的组合物，熔融组合物和熔融组合物熔融纺丝来制造半透​​膜的方法。 本发明的另一方面包括用于液体分离过程的均匀的熔纺的半透膜，例如但不限于微滤，超滤，透析和反渗透。

    Manufacturing process for sample initiated assay device
    3.
    发明授权
    Manufacturing process for sample initiated assay device 失效
    样品启动测定装置的制造过程

    公开(公告)号：US5411858A

    公开(公告)日：1995-05-02

    申请号：US104934

    申请日：1993-08-12

    申请人： John K. McGeehan ,  Gerhard Ertingshausen ,  Timothy B. Meluch

    发明人： John K. McGeehan ,  Gerhard Ertingshausen ,  Timothy B. Meluch

    IPC分类号： B01L3/00 ,  C12Q1/00 ,  G01N33/53 ,  G01N33/543 ,  G01N33/558 ,  G01N35/00 ,  G01N37/00 ,  G01N33/531

    CPC分类号： B01L3/5023 ,  C12Q1/00 ,  G01N33/5302 ,  G01N33/54366 ,  G01N33/558 ,  B01L2200/12 ,  B01L2300/0825 ,  B01L2300/0887 ,  B01L2400/0406 ,  G01N2035/00168 ,  Y10S435/805 ,  Y10S435/97 ,  Y10S436/80 ,  Y10S436/805 ,  Y10S436/81

    摘要： A quantitative test device is manufactured using a feedback loop which allows one to modify continuously the dimensions of a reading scale printed on the device. The quantitative test device is manufactured by attaching the critical component of a two-component dye system to minute particles such as microcrystalline cellulose, silica, or latex, which particles are suspended in a solution of a polymeric binder. Additional non-immobilized components of the reaction system of the test device are optionally added to the polymer solution. The suspension of dyed particles in polymer solution is applied to a fabric as a coating, using conventional coating machines, to obtain a homogeneous distribution of immobilized dye throughout the fabric.The device includes a measurement zone which is made from a film support made of a material having a lower melting point than the filter cloth fabric used in the measurement zone was used. By using a lower melting point material for the support film, impulse heat sealing is controlled to a degree such that the lower melting point support is made to melt and extrude through the mesh of the fabric on either side of a channel, forming a seal along the sides of the channel.

    摘要翻译： 使用反馈回路制造定量测试装置，其允许连续修改印刷在装置上的读数标尺的尺寸。 定量测试装置通过将双组分染料体系的关键组分连接到微晶纤维素，二氧化硅或胶乳等微粒上而制成，该颗粒悬浮在聚合物粘合剂的溶液中。 任选地将该测试装置的反应体系的其它非固定化组分加入聚合物溶液中。 使用常规涂布机将染色颗粒在聚合物溶液中的悬浮液作为涂层施加到织物上，以获得固定的染料在整个织物中的均匀分布。 该装置包括由使用由具有比在测量区域中使用的滤布织物的熔点低的材料制成的薄膜支撑件制成的测量区域。 通过使用用于支撑膜的较低熔点的材料，脉冲热密封被控制到一定程度，使得较低熔点的支撑件通过织物的通道的两侧的网状物熔化和挤出，形成密封 渠道的两边。