Methods and apparatus for applying a finish liquid to a bundle of
filmentary material
    9.
    发明授权
    Methods and apparatus for applying a finish liquid to a bundle of filmentary material 失效
    将精整液施加到一束碎屑材料的方法和装置

    公开(公告)号:US4605573A

    公开(公告)日:1986-08-12

    申请号:US700563

    申请日:1985-02-11

    IPC分类号: B05D7/20 D06B1/08 B05D1/00

    CPC分类号: B05D7/20 D06B1/08

    摘要: Finish liquid is applied to a bundle of running filamentary material by running the bundle of filamentary material in monolayer form through a passage and conducting finish liquid under pressure through at least two side-by-side capillaries each having a diameter less than 0.06 inches. The finish liquid is discharged through outlet ends of the capillaries and onto the running monolayer of filamentary material. Preferably, the capillaries are separated by a divider wall which terminates short of the outlet ends of the capillaries, whereby those outlet ends define a slot through which the finish liquid is discharged. The slot preferably has end portions which are narrower than a center portion of the slot.

    摘要翻译: 通过使通过通道的单层形式的丝束材料束运行将精整液体施加到一束运行的丝状材料上,并通过至少两个直径小于0.06英寸的并排毛细管在压力下导入精制液体。 精制液体通过毛细管的出口端排出到丝状材料的运行单层上。 优选地,毛细管由分隔壁分隔开,分隔壁终止于毛细管的出口端的末端,由此那些出口端限定了一个狭缝,精液被排出。 槽优选地具有比槽的中心部分窄的端部。

    Process for making microporous membranes having gel-filled pores, and
separations methods using such membranes
    10.
    发明授权
    Process for making microporous membranes having gel-filled pores, and separations methods using such membranes 失效
    制造具有凝胶填充孔的微孔膜的方法和使用这种膜的分离方法

    公开(公告)号:US5160627A

    公开(公告)日:1992-11-03

    申请号:US815297

    申请日:1991-12-27

    IPC分类号: B01D67/00 B01D69/10 B01D69/14

    摘要: A process is provided for modifying the properties of a hydrophobic microporous membrane which includes the steps of first providing a hydrophobic microporous membrane, treating it with a surfactant to render the membrane hydrophilic, wetting the membrane with an aqueous solution of a polyol such as polyvinyl alcohol (PVA) and divinyl sulfone (DVS) or a precursor thereof, washing the membrane with water to displace the polyol/DVA from the exterior of the membrane while retaining it in the pores of the membrane, and crosslinking the polyol/DVS into an aqueous gel to yield a hydrophilic microporous membrane having pores filled with an aqueous polyol/DVS gel, the exterior of the membrane being unobstructed by gel. The modified membranes produced according to the process are useful in carrying out chromatographic separations.

    摘要翻译: 提供了一种用于改性疏水性微孔膜的性质的方法,该方法包括以下步骤:首先提供疏水性微孔膜,用表面活性剂处理以使膜具有亲水性,用多元醇水溶液润湿膜,例如聚乙烯醇 (PVA)和二乙烯基砜(DVS)或其前体,用水洗涤膜以将多元醇/ DVA从膜的外部置换,同时将其保留在膜的孔中,并将多元醇/ DVS交联成水 凝胶以产生具有填充有水性多元醇/ DVS凝胶的孔的亲水微孔膜,膜的外部不被凝胶阻挡。 根据该方法制备的改性膜可用于进行色谱分离。