Compressed adsorbent filter cake
    1.
    发明授权
    Compressed adsorbent filter cake 失效
    压缩吸附剂滤饼

    公开(公告)号:US5614096A

    公开(公告)日:1997-03-25

    申请号:US448939

    申请日:1995-05-24

    IPC分类号: A23F5/22 B01J20/28 B01D39/06

    摘要: A compressed adsorbent filter cake for removing caffeine from liquids. The filter cake is composed of a compressed matrix of fibrous material; and adsorbent particulate material integrated within the compressed matrix of fibrous material, so that passage of a liquid having a caffeine concentration ranging from about 20 to about 100 mg per 100 mL of liquid through the matrix for a contact time of less than about 2 minutes results in at least a 40 percent reduction in the caffeine concentration of the liquid. The compressed matrix of fibrous material may a compressed wet-laid fibrous mat. The adsorbent material may be selected from clay minerals and zeolites. Generally speaking, the filter can be adapted to provide at least a 40 percent reduction in the caffeine concentration for about 1 cup to about 40 cups of a liquid.

    摘要翻译: 用于从液体中去除咖啡因的压缩吸附滤饼。 滤饼由纤维材料的压缩基体组成; 以及整合在纤维材料的压缩基质内的吸附剂颗粒材料,使得每100mL液体中咖啡因浓度范围为约20至约100mg的液体通过基质,接触时间小于约2分钟 在液体的咖啡因浓度降低至少40%。 纤维材料的压缩基质可以是压缩的湿法成网纤维垫。 吸附剂材料可以选自粘土矿物和沸石。 一般来说,过滤器可以适合于提供约1杯至约40杯液体的咖啡因浓度的至少40%的降低。

    Process for hydrosonically microaperturing
    2.
    发明授权
    Process for hydrosonically microaperturing 失效
    水解微生物过程

    公开(公告)号:US5269981A

    公开(公告)日:1993-12-14

    申请号:US769045

    申请日:1991-09-30

    IPC分类号: B26F1/26 B26F1/00

    摘要: A method for forming microapertures in a thin sheet material where the area of each of the formed apertures generally ranges from about 10 square micrometers to 100,000 square micrometers. The method includes the steps of (1) placing the sheet material on a pattern anvil having a pattern of raised areas wherein the height of the raised areas is greater than the thickness of the sheet material; (2) conveying the sheet material, while placed on the pattern anvil, through an area where a fluid is applied to the sheet material; and (3) subjecting the sheet material to a sufficient amount of ultrasonic vibrations in the area where the fluid is applied to the sheet material to microaperture the sheet material in a pattern generally the same as the pattern of raised areas on the pattern anvil.

    摘要翻译: 在薄片材料中形成微孔的方法,其中每个形成的孔的面积通常为约10平方微米至100,000平方微米。 该方法包括以下步骤:(1)将片材放置在具有凸起区域的图案的图案砧上,其中凸起区域的高度大于片材的厚度; (2)通过将流体施加到片材的区域放置在图案砧上的同时输送片材; 和(3)在片材上施加流体的区域中对片材进行足够量的超声波振动,以与图案砧上的凸起区域的图案大致相同的图案微片化片材。

    Hydrosonic process for forming electret filter media
    4.
    发明授权
    Hydrosonic process for forming electret filter media 失效
    用于形成驻极体过滤介质的水溶法

    公开(公告)号:US5370830A

    公开(公告)日:1994-12-06

    申请号:US949606

    申请日:1992-09-23

    摘要: The application is directed toward a process for forming an electret filter medium. The process includes the steps of: (1) providing a thin film of a dielectric material; (2) placing the thin film on a pattern anvil having a pattern of raised areas wherein the height of the raised areas is greater than the thickness of the film; (3) conveying the film, while placed on the pattern anvil, through an area where a fluid selected from the group including one or more of water, mineral oil, a chlorinated hydrocarbon, ethylene glycol and a solution of 50 volume percent water and 50 volume percent 1 propanol is applied to the film; (4) subjecting the film to a sufficient amount of ultrasonic vibrations in the area where the fluid is applied to the film to microaperture the film with at least about 1,000 microapertures per square inch in a pattern generally the same as the pattern of raised areas on the pattern anvil and with each of the microapertures having an area ranging from about 10 to about 100,000 square micrometers; and (5) corona discharge treating the film to instill a positive charge of at least about 100 volts on one surface of the film and a negative charge of at least about 100 volts on the other surface of the film.

    摘要翻译: 本申请涉及形成驻极体过滤介质的方法。 该方法包括以下步骤:(1)提供介电材料的薄膜; (2)将薄膜放置在具有凸起区域的图案的图案砧上,其中凸起区域的高度大于膜的厚度; (3)通过选自包括水,矿物油,氯化烃,乙二醇和50体积%水和50体积%水溶液中的一种或多种的组的区域,将薄膜输送到图案砧上 体积百分比1丙醇施加到薄膜上; (4)在将膜施加到膜上的区域中对膜进行足够量的超声波振动,以至少约1000个微孔/平方英寸的方式对薄膜进行微孔化,其形状通常与凸起区域的图案相同 图案砧座和每个微孔板具有约10至约100,000平方微米的面积; 和(5)电晕放电处理膜以在膜的一个表面上灌注至少约100伏的正电荷,并且在膜的另一个表面上产生至少约100伏的负电荷。

    Moldable hydrodisintegratable material and products formed thereby
    6.
    发明授权
    Moldable hydrodisintegratable material and products formed thereby 失效
    由此形成的可成型的水解崩解材料和产品

    公开(公告)号:US5496874A

    公开(公告)日:1996-03-05

    申请号:US333561

    申请日:1994-11-02

    摘要: Disclosed is a hydrodisintegratable material which, when injection molded into an object, acquires and maintains the desired shape without becoming brittle. Additionally, in the presence of water, the molded object has the ability to rapidly disintegrate and disperse when subjected to standardized agitation testing. The moldable material typically includes: (1) from about 7.5 to about 85 weight percent of at least one water dispersible polymer; (2) from about 7.5 to about 85 weight percent of at least one xerogellant; and (3) at least one volatile material, where the weight percentage of all volatile materials present in the material is within a range which is defined, at its lower end, by the weight percentage of all volatile materials which assures that the material will not become brittle upon being molded and is defined, at its upper end, by the highest weight percentage of all volatile materials which results in the material satisfactorily conforming to the desired physical configuration upon being molded. A process for forming such an object is disclosed.

    摘要翻译: 本发明公开了一种水分解性材料,其在注塑成型时,获得并保持所需形状而不变脆。 此外,在水的存在下,成型物体在进行标准化搅拌试验时具有快速分解和分散的能力。 可模制材料通常包括:(1)约7.5至约85重量%的至少一种水分散性聚合物; (2)约7.5至约85重量%的至少一个干凝胶; 和(3)至少一种挥发性材料,其中存在于材料中的所有挥发性材料的重量百分比在其下端的范围内,所有挥发性材料的重量百分数确保材料不会 在成型时变得脆弱,并且在其上端被所有挥发性材料的最高重量百分数限定,这导致材料在模制时令人满意地符合所需的物理构型。 公开了一种用于形成这种物体的工艺。

    Process for forming liquid impermeable sheet material having a fibrous
surface and products formed thereby
    7.
    发明授权
    Process for forming liquid impermeable sheet material having a fibrous surface and products formed thereby 失效
    用于形成具有纤维表面的不透液性片材的方法和由此形成的产品

    公开(公告)号:US5470424A

    公开(公告)日:1995-11-28

    申请号:US159979

    申请日:1993-11-30

    摘要: Disclosed are a number of processes for forming a liquid-impermeable sheet having a fibrous cloth-like surface. In one embodiment the process includes the steps of: (1) forming a sheet having first and second fibrous surfaces; and subjecting the sheet to pressure and a z-gradient temperature differential sufficient to melt the fibers of the first surface and form the melt into a liquid impermeable skin without significantly altering the fibers of the second surface. In another embodiment, the process includes the steps of: (1) forming a sheet having first and second fibrous surfaces wherein, upon the sheet being subjected to a sufficient temperature, the fibers forming the first fibrous surface are adapted to substantially completely melt prior to the fibers forming the second fibrous surface significantly melting; and (2) subjecting the sheet to a sufficient pressure and temperature to melt the fibers of the first surface and form the melt into a liquid impermeable skin without significantly altering the fibers of the second surface. In some embodiments the liquid impermeable skin is subsequently apertured to make the sheet breathable. Products formed by these processes are also disclosed.

    摘要翻译: 公开了用于形成具有纤维布状表面的不透液性片材的多种方法。 在一个实施方案中,该方法包括以下步骤:(1)形成具有第一和第二纤维表面的片材; 以及将片材经受足以熔化第一表面的纤维的压力和z-梯度温度差异,并将熔体形成液体不可渗透的皮肤,而不会显着改变第二表面的纤维。 在另一个实施方案中,该方法包括以下步骤:(1)形成具有第一和第二纤维表面的片材,其中在片材经受足够的温度时,形成第一纤维表面的纤维适于在 形成第二纤维表面的纤维显着熔化; 和(2)使片材经受足够的压力和温度以熔化第一表面的纤维,并将熔体形成液体不可渗透的皮肤,而不会显着改变第二表面的纤维。 在一些实施方案中,液体不可渗透的皮肤随后被开孔以使片材透气。 还公开了由这些方法形成的产品。

    Process for hydrosonically area embossing thin thermoplastic film
materials
    10.
    发明授权
    Process for hydrosonically area embossing thin thermoplastic film materials 失效
    湿式地面压花薄膜热塑性薄膜材料的工艺

    公开(公告)号:US5336452A

    公开(公告)日:1994-08-09

    申请号:US950095

    申请日:1992-09-23

    IPC分类号: B29C59/02 B29C59/00

    CPC分类号: B29C59/02 B29C2791/008

    摘要: The method includes the steps of (1) placing the thin thermoplastic film material on a pattern anvil having a pattern of raised areas wherein the height of the raised areas is generally less than the thickness of the film material; (2) conveying the thermoplastic film material, while placed on the pattern anvil, through an area where a liquid is applied to the film material; and (3) subjecting the thermoplastic film material to a sufficient amount of ultrasonic vibrations in the area where the liquid is applied to the film material to emboss the film material in a pattern generally the same as the pattern of raised areas on the pattern anvil.

    摘要翻译: 该方法包括以下步骤:(1)将薄的热塑性薄膜材料放置在具有凸起区域图案的图案砧上,其中凸起区域的高度通常小于薄膜材料的厚度; (2)将放置在图案砧上的热塑性薄膜材料输送到薄膜材料上施加液体的区域; 和(3)将热塑性薄膜材料在液体施加到薄膜材料的区域中进行足够量的超声波振动,以与图案砧上的凸起区域的图案大致相同的图案压印薄膜材料。