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1. 发明授权

US06921482B1 Skinned hollow fiber membrane and method of manufacture 有权
标题翻译：剥皮中空纤维膜及其制造方法
公开(公告)号：US06921482B1
公开(公告)日：2005-07-26
申请号：US09889961
申请日：2000-01-27
申请人： Kwok-Shun Cheng , T. Dean Gates , Larry Y. Yen , Rajnikant B. Patel
发明人： Kwok-Shun Cheng , T. Dean Gates , Larry Y. Yen , Rajnikant B. Patel
IPC分类号： B01D67/00 , B01D69/08 , B01D71/36 , D01D5/24 , D01F6/32 , B01D69/00 , B01D71/28
CPC分类号： D01F6/32 , B01D67/0009 , B01D67/003 , B01D67/0095 , B01D69/08 , B01D71/36 , B01D2323/22 , B01D2325/022 , B01D2325/34 , D01D5/24
摘要： Hollow fiber membranes having a skinned surface on one diameter, and a porous surface on the opposite diameter arm produced from perfluorinated thermoplastic polymers by extruding a heated solution of the polymer having a lower critical solution temperature directly into a cooling bath to form the porous membrane by liquid-liquid phase separation. Extrusion can be conducted either vertically or horizontally. The hollow fiber membranes are useful as ultrafiltration membranes and as membrane contactors.
摘要翻译：通过将具有较低临界溶解温度的聚合物的加热溶液直接挤出到冷却浴中以形成多孔膜，由全氟化的热塑性聚合物制成的具有一个直径的剥皮表面的空心纤维膜和相对直径臂上的多孔表面，液 - 液相分离。挤出可以垂直或水平进行。中空纤维膜可用作超滤膜和膜接触器。

2. 发明授权

US07347937B1 Perfluorinated thermoplastic filter cartridge 有权
标题翻译：全氟化热塑性滤芯
公开(公告)号：US07347937B1
公开(公告)日：2008-03-25
申请号：US09890290
申请日：2000-01-28
申请人： Kwok-Shun Cheng , Cha P. Doh , Larry Y. Yen , Rajnikant B. Patel , T. Dean Gates
发明人： Kwok-Shun Cheng , Cha P. Doh , Larry Y. Yen , Rajnikant B. Patel , T. Dean Gates
IPC分类号： B01D63/06 , B01D63/00
CPC分类号： B01D63/14 , B01D61/145 , B01D63/02 , B01D63/067 , B01D71/36 , B01D2311/2649 , B01D2313/21 , B01D2313/44
摘要： A filtration cartridge having a housing with an inlet and an outlet and a filtration membrane contained within the housing and located between the inlet and the outlet is described. The membrane is sealed in such a manner that all fluid must flow through the membrane between entering the inlet and leaving the outlet of the housing. The entire cartridge, housing, membrane and any other components are all formed of one or more perfluorinated thermoplastic resins. These resins preferably are PFA, MFA, FEP and blends thereof. The membrane may be in the form of hollow fibers, wound fibers such as in a depth filter, or a flat sheet which may be formed into various configurations such as spiral filters, pleated filters, spiral pleated filters, disks and the like. These cartridges provide an inert, high temperature and acid/oxidative chemical resistant filter having properties similar to that of PTFE resins.
摘要翻译：描述了具有壳体的过滤筒，其具有入口和出口以及容纳在壳体内且位于入口和出口之间的过滤膜。膜以这样的方式密封，使得所有流体必须在进入入口并离开壳体的出口之间流过膜。整个盒，壳体，膜和任何其它部件都由一种或多种全氟化热塑性树脂形成。这些树脂优选为PFA，MFA，FEP及其共混物。膜可以是中空纤维，诸如深度过滤器中的缠绕纤维或可形成各种构造的扁平片的形式，例如螺旋过滤器，褶皱过滤器，螺旋褶皱过滤器，盘等。这些墨盒提供惰性，高温和耐酸/耐氧化的耐化学性过滤器，其特性与PTFE树脂相似。

3. 发明授权

US06977043B2 Skinned hollow fiber membrane and method of manufacture 有权
标题翻译：剥皮中空纤维膜及其制造方法
公开(公告)号：US06977043B2
公开(公告)日：2005-12-20
申请号：US10704111
申请日：2004-03-17
申请人： Kwok-Shun Cheng , T. Dean Gates , Larry Y. Yen , Rajnikant B. Patel
发明人： Kwok-Shun Cheng , T. Dean Gates , Larry Y. Yen , Rajnikant B. Patel
IPC分类号： B01D67/00 , B01D69/08 , B01D71/36 , D01D5/24 , D01F6/32 , B01D39/00
CPC分类号： D01F6/32 , B01D67/0009 , B01D67/003 , B01D67/0095 , B01D69/08 , B01D71/36 , B01D2323/22 , B01D2325/022 , B01D2325/34 , D01D5/24
摘要： Hollow fiber membranes having a skinned surface on one diameter, and a porous surface on the opposite diameter are produced from perfluorinated thermoplastic polymers by extruding a heated solution of the polymer having a low critical solution temperature directly into a cooling bath to form the porous membrane by liquid-liquid phase separation. Extrusion can be conducted either vertically or horizontally. The hollow fiber membranes are useful as ultrafiltration membranes and as membrane contactors.
摘要翻译：通过将具有低临界溶解温度的聚合物的加热溶液直接挤出到冷却浴中以形成多孔膜，由全氟化的热塑性聚合物制备具有一个直径的剥皮表面和相对直径上的多孔表面的中空纤维膜，以通过液 - 液相分离。挤出可以垂直或水平进行。中空纤维膜可用作超滤膜和膜接触器。

4. 发明授权

US06802973B2 Microporous hollow fiber membranes from perfluorinated thermoplastic polymers 有权
标题翻译：来自全氟化热塑性聚合物的微孔中空纤维膜
公开(公告)号：US06802973B2
公开(公告)日：2004-10-12
申请号：US10436944
申请日：2003-05-13
申请人： Kwok-Shun Cheng , Rajnikant B. Patel , T. Dean Gates
发明人： Kwok-Shun Cheng , Rajnikant B. Patel , T. Dean Gates
IPC分类号： B01D7126
CPC分类号： D01F6/32 , D01D5/24
摘要： High flux porous hollow fiber membranes are produced from perfluorinated thermoplastic polymers by extruding heated solution of the polymer having a lower critical solution temperature directly into a cooling bath to form the porous membrane by liquid-liquid phase separation. Extrusion can be conducted either vertically or horizontally.
摘要翻译：通过将具有较低临界溶解温度的聚合物的加热溶液直接挤出到冷却浴中，通过液 - 液相分离形成多孔膜，由全氟化热塑性聚合物制备高通量多孔中空纤维膜。挤出可以垂直或水平进行。

5. 发明授权

US06802972B1 Microporous hollow fiber membranes from perfluorinated thermoplastic polymers 有权
标题翻译：来自全氟化热塑性聚合物的微孔中空纤维膜
公开(公告)号：US06802972B1
公开(公告)日：2004-10-12
申请号：US09890109
申请日：2001-07-26
申请人： Kwok-Shun Cheng , Rajnikant B. Patel , T. Dean Gates
发明人： Kwok-Shun Cheng , Rajnikant B. Patel , T. Dean Gates
IPC分类号： B01D7126
CPC分类号： D01F6/32 , D01D5/24
摘要： High flux porous hollow fiber membranes are produced from perfluorinated thermoplastic polymers by extruding a heated solution of the polymer having a lower critical solution temperature directly into a cooling bath to form the porous membrane by liquid-liquid phase separation. Extrusion can be conducted either vertically or horizontally.
摘要翻译：通过将具有较低临界溶解温度的聚合物的加热溶液直接挤出到冷却浴中，通过液 - 液相分离形成多孔膜，由全氟化热塑性聚合物制备高通量多孔中空纤维膜。挤出可以垂直或水平进行。

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