公开(公告)号：US20100098872A1

公开(公告)日：2010-04-22

申请号：US12516841

申请日：2007-06-13

申请人： Gilbert Erskine ,  Jeff Norton ,  Craig Erskine

发明人： Gilbert Erskine ,  Jeff Norton ,  Craig Erskine

IPC分类号： C08J7/18 ,  B01D69/02

CPC分类号： B01D71/022 ,  B01D39/1692 ,  B01D39/2034 ,  B01D67/0041 ,  B01D67/0046 ,  B01D69/04 ,  B01D69/12 ,  B01D2323/12 ,  B01D2323/24 ,  B01D2323/35 ,  B01D2325/28 ,  B01D2325/32 ,  B22F5/106

摘要： The present invention relates to the production of filter membranes (10) and in particular to multilayered filters. The invention related to a method of producing a filter membrane (10) wherein at least two layers (12, 14) are sequentially built upon a forming member (18) such that, when the forming member (18) is removed, the resultant membrane (10) includes a plurality of apertures extending therethrough, and at least some of said apertures increase in cross-sectional area from a first surface of the membrane to a second surface of the membrane. The method of production reduces the risk of permanent plugging from particulates being trapped within the membrane itself and has strong bonds between the layers which reduce the risk of separation of the layers. The present method produces an even coverage of the forming member (18) which in turn results in a layer of uniform thickness. The layer can be controlled by changing the viscosity of the mixture into which the former (18) is dipped.

摘要翻译： 本发明涉及过滤膜（10）的生产，特别涉及多层过滤器。 本发明涉及一种生产过滤膜（10）的方法，其中至少两层（12,14）依次构建在成形构件（18）上，使得当去除成形构件（18）时，所得到的膜 （10）包括延伸穿过其中的多个孔，并且至少一些所述孔径从膜的第一表面到膜的第二表面的横截面面积增加。 生产方法降低了从膜内本身捕获的颗粒永久堵塞的风险，并且层之间具有很强的粘合力，从而降低了层的分离风险。 本方法产生均匀覆盖成形构件（18），其又形成均匀厚度的层。 可以通过改变浸入前者（18）的混合物的粘度来控制该层。

公开(公告)号：US20100038809A1

公开(公告)日：2010-02-18

申请号：US12517059

申请日：2007-06-13

申请人： Gilbert Erskine ,  Jeff Norton ,  Craig Erskine

发明人： Gilbert Erskine ,  Jeff Norton ,  Craig Erskine

IPC分类号： B29D7/01 ,  B29C47/04

CPC分类号： B22F3/1121 ,  B01D39/1692 ,  B01D39/2034 ,  B01D39/2075 ,  B01D67/0046 ,  B01D71/022 ,  B01D2323/42 ,  B22F2998/00 ,  B22F9/08 ,  B22F1/0059 ,  B22F3/20 ,  B22F3/10

摘要： The present invention relates to an apparatus and method of producing lengths of multi-layered asymmetric membrane (10) by way of extruding different feedstock through a die head (46,78) having a plurality of outlet ports. The membrane (10) includes a plurality of apertures extending therethrough, and at least some of said apertures increase in cross-sectional area from a first surface of the membrane to a second surface of the membrane. The present invention provides a method of constructing membrane in desired lengths and reduces the need to weld portions of membrane together to produce extended lengths of membrane tube.

摘要翻译： 本发明涉及通过挤出不同原料通过具有多个出口的模头（46,78）来生产多层不对称膜（10）长度的装置和方法。 膜（10）包括延伸穿过其中的多个孔，并且所述孔中的至少一些在从膜的第一表面到膜的第二表面的横截面积上增加。 本发明提供一种以期望的长度构造膜的方法，并且减少了将膜的一部分焊接在一起以产生延伸长度的膜管的需要。