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1. 发明授权

US5073175A Fluorooxidized polymeric membranes for gas separation and process for preparing them 失效
标题翻译：用于气体分离的氟化聚合膜和制备它们的方法
公开(公告)号：US5073175A
公开(公告)日：1991-12-17
申请号：US230409
申请日：1988-08-09
申请人： Madhu Anand , Pushpinder S. Puri , Keith D. Campbell , Christine A. Costello
发明人： Madhu Anand , Pushpinder S. Puri , Keith D. Campbell , Christine A. Costello
IPC分类号： B01D69/02 , B01D67/00 , B01D71/26 , C08J7/12 , C08J9/28 , C08J9/36 , D01F6/04 , D01F11/06
CPC分类号： B01D67/0093 , B01D71/26 , C08J7/126 , C08J2323/02 , Y10S55/05
摘要： The present invention provides a surface modified polymeric gas separation membrane having improved selectivity, particularly for oxygen/nitrogen gas mixtures, prepared by forming a membrane of a polymer having the structural formula ##STR1## wherein R and R" can be the same or different linear, branched or cyclic alkyl group having one to twelve carbon atoms, or R can be H, with the proviso that both R and R" cannot be methyl, and n is at least 100, and treating the surface of the membrane with a fluoro-oxidizing agent at conditions sufficient to fluoro-oxidize the membrane surface.

2. 发明授权

US4859215A Polymeric membrane for gas separation 失效
标题翻译：用于气体分离的聚合物膜
公开(公告)号：US4859215A
公开(公告)日：1989-08-22
申请号：US144295
申请日：1988-05-02
申请人： Michael Langsam , Pushpinder S. Puri , Madhu Anand , Daniel V. Laciak
发明人： Michael Langsam , Pushpinder S. Puri , Madhu Anand , Daniel V. Laciak
IPC分类号： B01D67/00 , B01D71/44
CPC分类号： B01D67/0088 , B01D67/0011 , B01D71/44 , B01D2323/12 , B01D2325/34
摘要： The present invention is a modified polymeric membrane having improved selectivity for separating gas mixtures. The membrane comprises a silyl substituted polyacetylene polymer to which has been added 5 to 50 wt. % of an additive which is miscible with the polymer, has a boiling point >300.degree. C. at atmospheric pressure, is soluble in a common solvent for the polymer and increases the selectivity ratio of O.sub.2 /N.sub.2 by at least 15% over the polymer without the additive.
摘要翻译：本发明是具有改进的分离气体混合物选择性的改性聚合物膜。该膜包括甲硅烷基取代的聚乙炔聚合物，向其中加入5至50wt。与聚合物可混溶的添加剂的％，在大气压下沸点> 300℃，可溶于聚合物的常用溶剂中，并且使O 2 / N 2的选择比比聚合物提高至少15％没有添加剂。

3. 发明授权

US5288308A Multiple stage countercurrent hollow fiber membrane module 失效
标题翻译：多级逆流中空纤维膜组件
公开(公告)号：US5288308A
公开(公告)日：1994-02-22
申请号：US906731
申请日：1992-06-30
申请人： Pushpinder S. Puri , Dilip G. Kalthod
发明人： Pushpinder S. Puri , Dilip G. Kalthod
IPC分类号： B01D53/22 , B01D63/04
CPC分类号： B01D63/02 , B01D53/22 , B01D63/04 , B01D2313/08 , B01D2313/18 , B01D2313/20 , B01D2319/02 , B01D2319/06
摘要： A hollow fiber separation module is provided having a single, elongated pressurizable shell and containing multiple separation stages by multiple sections of hollow fiber bundles contained within the shell, with the ends of each bundle section potted within a single tubesheet at each end of the elongated shell. The fibers within each section are aligned so that the permeate within the fiber bores passes along paths traveling generally from one tubesheet to the other and one or more impermeable barriers are provided within the shell to isolate each section and control the passage of feed gas along the shell side of each fiber bundle section in a flow path countercurrent to the passage of permeate in the bores of the fibers.
摘要翻译：提供了一种中空纤维分离模块，其具有单个细长的可加压壳体，并且通过包含在壳体内的多个中空纤维束部分包含多个分离阶段，每个束段的端部封装在细长壳体的每个端部的单个管板内。每个部分内的纤维被对准，使得纤维孔内的渗透物沿着通常从一个管板传播到另一个管道的路径通过，并且在壳体内设置一个或多个不可渗透的屏障以隔离每个部分并控制进料气体沿着每个纤维束部分的壳侧在与纤维孔中的渗透物通过相反的流动路径中。

4. 发明授权

US5176725A Multiple stage countercurrent hollow fiber membrane module 失效
标题翻译：多级逆流中空纤维膜模块
公开(公告)号：US5176725A
公开(公告)日：1993-01-05
申请号：US736197
申请日：1991-07-26
申请人： Pushpinder S. Puri , Dilip G. Kalthod
发明人： Pushpinder S. Puri , Dilip G. Kalthod
IPC分类号： B01D53/22 , B01D63/04
CPC分类号： B01D63/02 , B01D53/22 , B01D63/04 , B01D2313/08 , B01D2313/18 , B01D2313/20 , B01D2319/02 , B01D2319/06
摘要： A hollow fiber separation module is provided having a single, elongated pressurizable shell and containing multiple separation stages by multiple sections of hollow fiber bundles contained within the shell, with the ends of each bundle section potted within a single tubesheet at each end of the elongated shell. The fibers within each section are aligned so that the permeate within the fiber bores passes along paths traveling generally from one tubesheet to the other and one or more impermeable barriers are provided within the shell to isolate each section and control the passage of feed gas along the shell side of each fiber bundle section in a flow path countercurrent to the passage of permeate in the bores of the fibers.

5. 发明授权

US5514413A Process for producing composite membranes 失效
标题翻译：复合膜生产工艺
公开(公告)号：US5514413A
公开(公告)日：1996-05-07
申请号：US221326
申请日：1994-03-31
申请人： Jacob A. Van't Hof , Pushpinder S. Puri , Stephen C. Lynch , Albert A. Brooks , Daniel T. Diggs
发明人： Jacob A. Van't Hof , Pushpinder S. Puri , Stephen C. Lynch , Albert A. Brooks , Daniel T. Diggs
IPC分类号： B01D53/22 , B01D67/00 , B01D69/08 , B01D69/12 , B01D71/34 , B01D71/42 , B01D71/48 , B01D71/52 , B01D71/54 , B01D71/56 , B01D71/64 , B01D71/68 , C08J9/42 , C09D201/00 , D01D5/24 , D06M15/59 , D06M23/00 , D06M101/00 , D06M101/16 , D06M101/18 , D06M101/22 , D06M101/28 , D06M101/30 , D06M101/32 , D06M101/34 , B05D3/00 , B05D5/00 , B05D7/24
CPC分类号： B01D69/12 , B01D69/08
摘要： A process is provided for fabricating composite membranes by coating a porous substrate with a solution of selective polymer. A reserve of non-solvent medium is incorporated in the substrate pore network which allows the substrate to be successfully coated with a polymer solution formulated in a solvent medium which is also a solvent for the substrate material.
摘要翻译：提供了通过用选择性聚合物溶液涂覆多孔基材来制造复合膜的方法。将非溶剂介质的储备物并入衬底孔网络中，其允许衬底被成功地涂覆在配制在也用作衬底材料的溶剂的溶剂介质中的聚合物溶液。

6. 发明授权

US4968470A Asymmetric permselective polyacetylene membranes and process for the formation thereof 失效
标题翻译：不对称选择性聚乙炔膜及其形成方法
公开(公告)号：US4968470A
公开(公告)日：1990-11-06
申请号：US436586
申请日：1989-11-15
申请人： Stephen C. Lynch , James K. Smith , John W. McTopy, II , Pushpinder S. Puri
发明人： Stephen C. Lynch , James K. Smith , John W. McTopy, II , Pushpinder S. Puri
IPC分类号： B01D67/00 , B01D71/44
CPC分类号： B01D71/44 , B01D67/0013 , B01D67/0016 , B01D69/02 , B01D2323/12 , B01D2323/16 , B01D2325/022 , B01D2325/20 , Y10S264/14
摘要： Asymmetric polyacetylene polymer membranes having both improved selectivity and improved flux are provided by a process which comprises forming a solution containing from about 1 to about 5% by weight of a polyacetylene polymer in any suitable solvent therefor, forming the solution into a thin film and quenching the film in an aqueous bath in the presence of from about 0.002 to about 0.4% by weight of the quench bath of surfactant with an HLB value of 11 to 15. Additionally, the polyacetylene polymer solution contains a swelling agent at about 1% to about 10% by weight of polyacetylene polymer solution.
摘要翻译：具有提高的选择性和改善的通量的不对称聚乙炔聚合物膜通过包括在任何合适的溶剂中形成含有约1至约5重量％的聚乙炔聚合物的溶液的方法提供，形成薄膜并淬火该水溶液在约0.002至约0.4重量％的HLB值为11至15的表面活性剂的骤冷浴存在下进行。另外，聚乙炔聚合物溶液含有约1％至约 10重量％的聚乙炔聚合物溶液。

7. 发明授权

US5299749A Method of winding hollow fiber membranes 失效
标题翻译：缠绕中空纤维膜的方法
公开(公告)号：US5299749A
公开(公告)日：1994-04-05
申请号：US856602
申请日：1992-03-24
申请人： Robert M. Thorogood , Robin J. Maliszewskyj , Myron J. Coplan , Pushpinder S. Puri
发明人： Robert M. Thorogood , Robin J. Maliszewskyj , Myron J. Coplan , Pushpinder S. Puri
IPC分类号： B01D63/02 , B29C53/66 , B65H81/08
CPC分类号： B01D63/021 , B29C53/66
摘要： Bundles of hollow filament membranes suitable for use in fluid separation, such as in the separation of air into gases more concentrated in oxygen and nitrogen are made in a cylindrical form and annular cross-section with multiple filaments of each layer lying in generally parallel helical paths at a common angle to the axis of symmetry of the bundle. Continuous lengths of filaments are laid down on the core while same is rotated first in a "forward" sense and the filament lay-down point is traversed from a first end of the core to the second, and then in a "reverse" sense while the filament lay-down point is traversed from the second end to the first. Reversing of the direction of core rotation and filament end-to-end traversal is repeated with said reversing controlled in such a manner that the path of the filament returning from either end to the other is displaced incrementally from that of the filament portion laid down in the immediately preceding traversal. Lay-down of filament is repeated until a plurality of segments of filament all sharing the same helix angle and direction have formed a thin annular layer. The instant method can be precisely controlled to obtain bundles of desired packing density with consequent improved flow of fluid within the shell side of the bundle.
摘要翻译：适合用于流体分离的中空丝膜的束，例如将空气分离成更浓缩在氧气和氮气中的气体，其制成圆柱形和环形横截面，每层的多根细丝具有大致平行的螺旋形路径与束的对称轴成共同的角度。将连续长度的长丝放置在芯上，同时首先以“向前”方向旋转并且细丝沉积点从芯的第一端穿过到第二端，然后以“反向”方式灯丝铺设点从第二端穿过第一端。重复旋转方向和细丝端对端横向的反转，其中所述反转被控制为使得从任一端返回到另一端的细丝的路径与从纤维中的细丝部分的纤维向紧随其后的遍历。重复细丝的放置，直到多个共享相同螺旋角和方向的细丝丝段形成薄的环状层。可以精确地控制本方法以获得所需填充密度的束，从而改进了在束的壳侧内的流体流动。

8. 发明授权

US4863761A Continuous process for making coated composite hollow fiber membranes 失效
标题翻译：制造涂层复合中空纤维膜的连续工艺
公开(公告)号：US4863761A
公开(公告)日：1989-09-05
申请号：US159627
申请日：1988-02-23
申请人： Pushpinder S. Puri
发明人： Pushpinder S. Puri
IPC分类号： B01D67/00 , B01D69/08 , B01D69/12 , B01D71/26 , B01D71/68 , B01D71/70
CPC分类号： B01D69/12 , B01D67/0013 , B01D69/08 , B01D2323/06 , B01D2323/12 , B01D2325/20
摘要： The present invention is a process for applying a semi-permeable coating on a hollow fiber substrate. The hollow fiber substrate is continuously passed through a polymeric coating solution and withdrawn from the solution through a coating die to form a uniform polymeric solution coating on the outer surface of the hollow fiber. The coated hollow fiber is dried by passing it through a convective flow tunnel in which the rate of drying is controlled both by a pre-determined temperature profile in the tunnel and by a controlled air flow rate through the tunnel. The resultant material is a semi-permeable, coated composite hollow fiber membrane which can be used in gas and/or liquid separations.

9. 发明授权

US4837386A Method of treating membranes with ultraviolet radiation 失效
标题翻译：用紫外线辐射处理膜的方法
公开(公告)号：US4837386A
公开(公告)日：1989-06-06
申请号：US65795
申请日：1987-06-24
申请人： Pushpinder S. Puri
发明人： Pushpinder S. Puri
IPC分类号： C08J7/00 , B01D61/00 , B01D67/00 , B01D71/44
CPC分类号： B01D67/009 , B01D71/44
摘要： The present invention is a process for enhancing the permselectivity of a polymeric membrane containing substituted acetylene monomer units without adversely affecting the mechanical properties of the membrane. The process comprises irradiating the surface of the membrane with ultraviolet light while maintaining it in an environment comprising a fluid which is capable of removing surface heat from the polymer film surface without significantly absorbing or depleting the intensity of the ultraviolet rays in the range of 230-280 nm.

10. 发明授权

US4756932A Process for making highly permeable coated composite hollow fiber membranes 失效
标题翻译：制造高渗透性复合中空纤维膜的方法
公开(公告)号：US4756932A
公开(公告)日：1988-07-12
申请号：US61237
申请日：1987-06-11
申请人： Pushpinder S. Puri
发明人： Pushpinder S. Puri
IPC分类号： B01D53/22 , B01D69/08 , B01D69/12 , B05D7/02 , B05D7/20 , D06M15/00 , B05D3/12
CPC分类号： B01D69/12 , B01D69/08
摘要： The present invention is a process for applying a highly permeable coating on a hollow fiber substrate. The hollow fiber substrate is continuously passed through a polymeric coating solution and withdrawn from the solution through a coating die to form a uniform polymeric solution coating on the outer surface of the hollow fiber. A portion of the solvent from the coating is allowed to evaporate thereby forming a thin, dense surface layer after which the remaining solvent from the coating layer is leached out. The resultant material is a highly permeable, coated composite hollow fiber membrane which can be used in gas and/or liquid separations.

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