公开(公告)号：US4952349A

公开(公告)日：1990-08-28

申请号：US468907

申请日：1990-01-23

申请人： Frantisek Svec ,  Miroslav Bleha ,  Tatiana B. Tennikova ,  Boris G. Belenkii

发明人： Frantisek Svec ,  Miroslav Bleha ,  Tatiana B. Tennikova ,  Boris G. Belenkii

IPC分类号： B01D71/28 ,  B01D15/08 ,  B01D67/00 ,  B01D71/00 ,  B01D71/26 ,  B01D71/38 ,  B01D71/40 ,  B01D71/44 ,  B01D71/82 ,  B01J20/26 ,  B01J20/28 ,  B01J20/281 ,  C08F2/04 ,  C08F2/06 ,  C08F12/00 ,  C08F20/10 ,  C08F26/06 ,  C08F26/10 ,  C08F212/08 ,  C08F220/20 ,  C08F226/06 ,  C08F226/10 ,  C08J9/28 ,  C12N9/00 ,  G01N30/52

CPC分类号： B01D67/0006 ,  B01D67/0093 ,  B01D71/76 ,  B01J20/26 ,  B01J20/261 ,  B01J20/265 ,  B01J20/267 ,  B01J20/28004 ,  B01J20/28026 ,  B01J20/28033 ,  B01J20/28057 ,  B01J20/28085 ,  B01J20/285 ,  B01J20/3064 ,  C12N9/00 ,  B01D2323/02 ,  B01D2323/30 ,  B01D2325/10 ,  B01D2325/40 ,  B01D71/28 ,  B01D71/40 ,  B01J2220/54 ,  G01N2030/527 ,  Y10S264/48 ,  Y10S264/62

摘要： A method for preparation of macroporous polymeric membranes consisting in placing a mixture of monomers and a radical initiator, dissolved in a porogenic inert organic solvent selected from the group comprising alcohols, estes of carboxylic acids, ketones, and their mixtures, into a space of an adapted shape formed by two temperature-controlled plates and a distance insert having the thickness corresponding to the required thickness of membrane and heating up to 80.degree. C. for 24 hours at utmost in order to carry out the radical polymerization. Azo-bis-isobutyronitrile is advantageously used as an initiator in the amount 0.05-2 wt. % related to monomers in the polymerization mixture. Cyclohexanol or its mixture containing up to 20 vol. % dodecanol are advantageously used as a porogenic solvent in the amount 40-60 vol. % in the polymerization batch. Also included is the method of application of macroporous membranes, where a sector made from the membrane is placed on a base fixing its position and enabling the outlet of liquid passing through the membrane, which base create a wall of a chamber. The chamber is filled with a solution of polymer or polymer mixture, the solution passes through the membrane under pressure up to 1 MPa, the polymer or polymers are sorbed in the membrane, and then a solvent with properties changing according to the purposeful program is introduced into the chamber and individual components of the separated mixture are eluted and detected and/or collected.

公开(公告)号：US4919865A

公开(公告)日：1990-04-24

申请号：US117639

申请日：1987-11-05

申请人： Joyce K. Nelson

发明人： Joyce K. Nelson

IPC分类号： B01D69/12 ,  B01D71/12 ,  B01D71/40 ,  C08J5/00 ,  C08J7/04 ,  C08L33/10 ,  C08L33/12

CPC分类号： B01D71/40 ,  B01D69/12 ,  B01D71/10 ,  B01D71/76 ,  Y10S264/48 ,  Y10S264/62

摘要： Composite membranes are disclosed having a separation layer comprised of a mixture of poly(methy methacrylate) or a copolymer thereof and at least one cellulosic derivative resulting in enhanced separation and permeating characteristics of the overall composite membrane. Processes for making these composite membranes and the methods of using them are also disclosed. The membranes are particularly useful in gas separation applications and are most suited for the separation of hydrogen from a hydrogen containing stream.

摘要翻译： 公开了具有由聚（甲基丙烯酸甲酯）或其共聚物和至少一种纤维素衍生物的混合物组成的分离层的复合膜，其导致整个复合膜的分离和渗透特性的增强。 还公开了制备这些复合膜的方法及其使用方法。 该膜在气体分离应用中特别有用，并且最适用于从含氢气流中分离氢。

公开(公告)号：US4859384A

公开(公告)日：1989-08-22

申请号：US205576

申请日：1988-06-13

申请人： Richard F. Fibiger ,  Ja-young Koo ,  David J. Forgach ,  Robert J. Petersen ,  Donald L. Schmidt ,  Ritchie A. Wessling ,  Thomas F. Stocker

发明人： Richard F. Fibiger ,  Ja-young Koo ,  David J. Forgach ,  Robert J. Petersen ,  Donald L. Schmidt ,  Ritchie A. Wessling ,  Thomas F. Stocker

IPC分类号： B01D69/12 ,  B01D71/56

CPC分类号： B01D69/125 ,  B01D71/56 ,  Y10S264/48 ,  Y10S264/62

摘要： An improved composite polyamide membrane and methods of making the membrane are described. This improved membrane is prepared using a cationic polymeric wetting agent in an aqueous solution containing a polyfunctional amine reactant which is interfacially polymerized with an acyl halide to form a thin film polyamide discriminating layer on a microporous support. Alternatively, the wetting agent can be applied directly to the substrate and the interfacial polymerization can occur on said treated substrate. The resulting membrane exhibits an unexpected combination of high water flux, high rejection of divalent anion salts, variable sodium chloride rejection and good caustic resistance at low operating pressures. In one embodiment of this invention, a porous substrate is first treated with an aqueous piperazine solution containing a copolymer of vinylbenzyl dimethyl sulfonium chloride and methacrylic acid and then the coated microporous support is contacted with trimesoyl chloride in an organic solvent.

摘要翻译： 描述了改进的复合聚酰胺膜和制造膜的方法。 这种改进的膜是使用阳离子聚合物润湿剂在含有多官能胺反应物的水溶液中制备的，该反应物与酰基卤进行界面聚合以在微孔载体上形成薄膜聚酰胺鉴别层。 或者，润湿剂可以直接施加到基底上，并且界面聚合可以发生在所述经处理的基底上。 所得膜在低操作压力下表现出高水通量，二价阴离子盐的高排斥性，可变的氯化钠排除和良好的耐碱性的意想不到的组合。 在本发明的一个实施方案中，首先用含有乙烯基苄基二甲基氯化锍和甲基丙烯酸的共聚物的哌嗪水溶液处理多孔基材，然后将涂覆的微孔载体与均苯三甲酰氯在有机溶剂中接触。

公开(公告)号：US4828772A

公开(公告)日：1989-05-09

申请号：US192595

申请日：1988-05-09

申请人： George Lopatin ,  Larry Y. Yen

发明人： George Lopatin ,  Larry Y. Yen

IPC分类号： B01D67/00 ,  B01D71/26 ,  C08J9/28

CPC分类号： C08J9/28 ,  B01D67/003 ,  B01D71/26 ,  C08J2201/03 ,  C08J2201/052 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/06 ,  Y10S264/48 ,  Y10S264/62

摘要： Microporous membranes and methods for producing such membranes from ultrahigh molecular weight polyethylene are described. The method employs extrusion of a solution of UHMW-PE and porogen through a forming die followed by thermal phase separation of polymer and porogen. Microporous structures are created by removing porogen. Microporous membranes produced include membranes with good permeability to air and water making them particularly useful as filtration media and water-resistance breathable membranes.

摘要翻译： 描述了微孔膜和从超高分子量聚乙烯生产这种膜的方法。 该方法通过成形模挤出UHMW-PE和致孔剂溶液，然后热分解聚合物和致孔剂。 通过去除致孔剂产生微孔结构。 产生的微孔膜包括对空气和水具有良好渗透性的膜，使得它们特别用作过滤介质和耐水透气膜。

公开(公告)号：US4826642A

公开(公告)日：1989-05-02

申请号：US203821

申请日：1988-06-08

申请人： Peter J. Degen ,  Thomas C. Gsell

发明人： Peter J. Degen ,  Thomas C. Gsell

IPC分类号： A41D31/02 ,  B01D69/10 ,  B01D13/04

CPC分类号： A41D31/02 ,  B01D69/10 ,  Y10S264/48 ,  Y10S264/62 ,  Y10S264/75

摘要： A supported microporous membrane comprising a composite of a microporous membrane and a synthetic thermoplastic web of microfibers secured to the membrane without the use of added adhesive components and having an ASTM D903 peel strength of at least about 2 grams per centimeter, the composite having a modulus of flexure at leasts 10 percent greater than that of the membrane, and the method of manufacturing such supported membranes by contacting thermplastic microfibers with the membrane while the microfibers are at an elevated temperature.

摘要翻译： 支撑的微多孔膜，其包括微孔膜和合成的纤维的合成热塑性纤维网的复合材料，其固定到膜上，而不使用添加的粘合剂组分，并且具有至少约2克/厘米的ASTM D903剥离强度，所述复合材料具有模量 的挠曲比膜的至少10％，以及当微纤维处于升高的温度时通过使热塑性微纤维与膜接触来制造这种支撑膜的方法。

公开(公告)号：US4134837A

公开(公告)日：1979-01-16

申请号：US694669

申请日：1976-06-10

申请人： Shuzo Yamashita ,  Shiro Nagata ,  Koichi Takakura

发明人： Shuzo Yamashita ,  Shiro Nagata ,  Koichi Takakura

IPC分类号： A61M1/16 ,  B01D71/38 ,  B01D71/78 ,  B01D71/80 ,  B29D27/04

CPC分类号： B01D71/76 ,  B01D67/0006 ,  B01D61/246 ,  B01D71/26 ,  B01D71/38 ,  Y10S264/62

摘要： Ethylene-vinyl alcohol copolymer membranes characterized by constituent particles having an average diameter within the range of from 100 to 10,000 Angstrom units, determined under an electron microscope for the dry membrane, bonded to each other, wherein the membrane is substantially free from pores in excess of from 2 microns in diameter.Such a membrane has a permeability to water of 10 to 200 .times. 10.sup.-16 cm.sup.2 and to vitamin B.sub.12 of not less than 0.8 .times. 10.sup.-7 cm.sup.2 per second, and being of particular value as a membrane for the dialysis of blood.The membrane is obtained by dissolving an ethylenevinyl alcohol copolymer in a solvent consisting essentially of dimethylsulfoxide or dimethylacetamide and causing the resulting solution to coagulate from an aqueous coagulation bath under mild conditions such that the coagulation time as defined in the specification is not less than 3 seconds.

摘要翻译： 乙烯 - 乙烯醇共聚物膜，其特征在于平均直径在100至10,000埃单位范围内的组成颗粒，在用于干膜的电子显微镜下测定，彼此粘合，其中膜基本上不含过量的孔 直径为2微米。

公开(公告)号：US3920785A

公开(公告)日：1975-11-18

申请号：US4360870

申请日：1970-06-04

申请人： CELANESE CORP

发明人： DRUIN MELVIN L ,  LOFT JOHN T ,  PLOVAN STEVEN G

IPC分类号： B29C55/02 ,  B29C55/06 ,  C08J9/36 ,  D01D5/12

CPC分类号： C08J9/36 ,  B29C55/023 ,  B29C55/065 ,  B29L2023/001 ,  Y10S264/47 ,  Y10S264/62

摘要： Certain open-celled microporous films are treated to give products having increased porosity. The process involves contacting the open-celled film with a liquid organic compound such as perchloroethylene.

公开(公告)号：US3864418A

公开(公告)日：1975-02-04

申请号：US33997573

申请日：1973-03-12

申请人： STANDARD OIL CO

发明人： HUGHES ROBERT D ,  STEIGELMANN EDWARD F

IPC分类号： B01D61/38 ,  B01D67/00 ,  B01D71/56 ,  C07C7/152 ,  C07C11/00

CPC分类号： B01D67/003 ,  B01D61/38 ,  B01D71/56 ,  B01D2325/36 ,  C07C7/152 ,  Y10S264/62 ,  C07C11/04

摘要： There is described the preparation of hydrophilic, semipermeable film membranes having an increase in pores and containing complex-forming metals. The films can be formed from solutions having film-forming material and pore-forming material dissolved in a solvent. The films can be useful for separating a component, e.g. an aliphatically-unsaturated hydrocarbon, from mixtures by the combined use of liquid barrier permeation and metal complexing techniques. The liquid barrier is at least partially within the hydrophilic film membrane during use, and the barrier contains complex-forming metal ions in aqueous solution. The metal ions may be, for example, noble metal, nickel, mercurous, cuprous or other metal ions, and mixtures of these metal ions, and the aqueous solution may contain other cations. The separation of ethylene from ethane and methane is of particular interest.

摘要翻译： 描述了具有孔增加并含有络合物形成金属的亲水性半透膜膜的制备。 膜可以由溶解在溶剂中的成膜材料和成孔材料的溶液形成。 该膜可用于分离组分，例如 脂族不饱和烃，通过组合使用液体屏障渗透和金属络合技术从混合物中获得。 液体屏障在使用过程中至少部分地在亲水膜膜内，并且屏障在水溶液中含有复合物形成金属离子。 金属离子可以是例如贵金属，镍，汞，亚铜或其它金属离子，以及这些金属离子的混合物，并且水溶液可以含有其它阳离子。 乙烯与乙烷和甲烷的分离是特别有意义的。

公开(公告)号：US3763054A

公开(公告)日：1973-10-02

申请号：US3763054D

申请日：1970-12-07

申请人： BAYER AG

发明人： REISCHL A ,  DIETERICH D ,  WITT H

IPC分类号： B29C67/20 ,  C08J9/28 ,  D06N3/14 ,  B29D27/08 ,  C08G22/00 ,  C08G53/08

CPC分类号： C08J9/28 ,  B29C67/202 ,  C08J2375/00 ,  C08J2375/04 ,  D06N3/14 ,  Y10S264/62 ,  Y10S264/77

摘要： MICROPOROUS SHEET STRUCTURES ARE PREPARED BY CONVERTING AQUEOUS DISPERSIONS OF POLYURETHANE POLYMERS HAVING SALT-TYPE GROUPS INTO SHEET STRUCTURES AND MELT SINTERING THE STRUCTURES. THE DISPERSIONS ARE SEDIMENTING AND REDISPERSIBLE, THE PARICLES HAVING AN AVERAGE PARTICLE SIZE ABOVE ABOUT 5U. THE PRODUCTS OF THE INVENTION ARE USEFUL AS ARTIFICAL LEATHER IN THE PREPARATION OF RAINCOATS, HANDBAGS, BELTS, SHOES, UPHOLSTERY AND ALSO AS VIBRATION AND SOUND DAMPING MATERIALS.

公开(公告)号：US3718532A

公开(公告)日：1973-02-27

申请号：US3718532D

申请日：1970-04-08

申请人： USM CORP

发明人： HAYES S

IPC分类号： C08J9/28 ,  B32B3/26 ,  B32B5/14 ,  B32B5/18

CPC分类号： C08J9/283 ,  C08J9/28 ,  C08J2201/0502 ,  Y10S264/13 ,  Y10S264/62 ,  Y10S428/904 ,  Y10T428/249961 ,  Y10T428/249979

摘要： Microporous sheet having pores of controlled size and arrangement and process of making in which temperature and composition are coordinated to control growth of size of nonsolvent liquid droplets constituting the discontinuous phase of an emulsion of which the continuous phase is a heated liquid polymeric reactive material which sets through reaction to solid condition and in which process the droplets are removed after setting of the reactive material to leave spaces constituting openings or pores in the solidified material. Pores of smaller size relative to the size of pores in the body of the sheet are provided in the sheet by control of the temperature of a casting surface.

摘要翻译： 微孔板具有受控尺寸和排列的孔，制备方法，其中配置温度和组成以控制构成乳液的不连续相的非溶剂液滴的尺寸的增长，其中连续相是加热的液体聚合反应性材料 其通过反应固体条件设定，并且在该过程中，在固定反应性材料之后除去液滴以留下构成固化材料中的孔或孔的空间。 通过控制铸造表面的温度，在片材中提供相对于片体内的孔的尺寸的较小尺寸的孔。