| Patents for B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus (11,858) |
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| 08/31/1988 | EP0280560A2 Membrane structure coated with low pI protein and methods of making and using |
| 08/30/1988 | US4767645 Composite membranes useful for the separation of organic compounds of low molecular weight from aqueous inorganic salts containing solutions |
| 08/30/1988 | US4767538 Washing of semipermeable membrane |
| 08/30/1988 | US4767422 Repairing defects by post-treatment with volatile solvent and additives |
| 08/25/1988 | WO1988006200A1 Protective surface treatment |
| 08/23/1988 | US4766036 Process for producing porous fibers from orientable olefin polymers having cation-containing, pendent reactive side-groups and the resultant product |
| 08/23/1988 | US4765897 Polyamide membranes useful for water softening |
| 08/17/1988 | EP0278059A2 Process for making a filter |
| 08/16/1988 | US4764320 Method for preparing semipermeable membrane compositions |
| 08/11/1988 | WO1988005768A1 Process for the recovery of alcohols using an organic acid-modified polymer membrane |
| 08/11/1988 | WO1988005688A1 Hydrophilic article and method of producing same |
| 08/11/1988 | WO1988005687A1 Microporous asymmetric polyfluorocarbon membranes |
| 08/11/1988 | WO1988005686A1 Microporous asymmetric polyamide membranes |
| 08/10/1988 | EP0277834A2 Stable membranes from sulfonated polyarylethers |
| 08/09/1988 | US4762657 Formation of porous membranes by mechanical deformation |
| 08/02/1988 | US4761233 Novel membranes and process for making them |
| 08/02/1988 | US4761232 Polyethylene, polyvinyl chloride |
| 07/28/1988 | WO1988005475A1 Porous polypropylene membrane and process for its production |
| 07/26/1988 | CA1239513A1 Removing n-n bis(2 hydroxyethyl) tallow amine to obtain skinless polypropylene membrane |
| 07/20/1988 | EP0275027A2 Reverse osmosis membranes |
| 07/19/1988 | US4758342 Hyperfiltration membranes having separation layers of monomolecular films of surfactants |
| 07/14/1988 | WO1988005062A1 Hydrophilic, porous polyvinylidene fluoride membrane and process for its preparation |
| 07/06/1988 | EP0273724A2 Acid gas scrubbing by composite solvent-swollen membranes |
| 07/05/1988 | US4755540 Polymer membrane |
| 07/05/1988 | US4755192 Swelling membrane by dissolving therein gaseous conditioning agent to plasticize, maintaining to stabilize, reducing amount of dissolved conditioner |
| 06/30/1988 | WO1988004677A1 Polymer with betaine structure, solution diffusion membrane, process for their manufacture and use |
| 06/29/1988 | EP0272842A2 Filtration membranes |
| 06/29/1988 | EP0272841A2 Filtration media |
| 06/28/1988 | US4753725 Crosslinked vinyl alcohol polymers |
| 06/14/1988 | US4751104 Preparation of gas selective membranes |
| 06/08/1988 | EP0270441A1 production of microporous asymetric membranes by double radiation |
| 06/07/1988 | US4749487 Premselective microskin of multivalent ions; desalting molasses or milk whey |
| 06/02/1988 | WO1988003814A1 Medical material and process for its production |
| 06/01/1988 | EP0269213A2 Method and apparatus for forming a package of plural separable fibers, and the package of fibers thus formed |
| 05/24/1988 | US4746333 Method for producing an integral asymmetric gas separating membrane and the resultant membrane |
| 05/18/1988 | EP0267739A1 Shaping anodic aluminium oxide sheet |
| 05/18/1988 | EP0142518B1 Microporous metal-plated polytetrafluoroethylene articles and method of manufacture |
| 05/18/1988 | CN87101497A Shaping anodic aluminium oxide sheet |
| 05/17/1988 | US4744906 Porous fibers and membranes and methods for their preparation and use |
| 05/17/1988 | US4744807 Method of manufacturing a cellulose acetate membrane and the membrane so produced |
| 05/11/1988 | EP0266795A2 Improved regenerated cellulose membrane and process for preparation thereof |
| 05/10/1988 | US4743418 Bonding amine through polyepoxide crosslinking agent |
| 05/10/1988 | US4743378 Rapid vapor transport through unwetted porous barriers |
| 05/10/1988 | US4743375 Polyolefin, blood separation |
| 05/05/1988 | DE3636735A1 Biochemically active matrix and process for its production |
| 05/04/1988 | CN87103499A Anode aluminium oxide diaphragm |
| 05/03/1988 | US4741744 Nafion" |
| 05/03/1988 | EP0180599A4 High flux membrane. |
| 05/02/1988 | EP0167573A4 Charge modified microporous hollow tubes. |
| 04/27/1988 | EP0264594A2 Device for the support of a metallic microfilter foil |
| 04/27/1988 | CN87106270A Production method and relevant glue for the asymmetrical gas separating membrance with gradient density surface layer |
| 04/26/1988 | US4740562 Dehydrofluorination |
| 04/21/1988 | WO1988002653A1 Ultrafiltration thin film membranes |
| 04/20/1988 | EP0264229A2 Process for preparing a polyimide membrane |
| 04/19/1988 | US4738782 Using a polytetrafluoroethylene filter with a hydrophilic surface |
| 04/13/1988 | CN86105257A Removing and recovering plant polyphenols |
| 04/12/1988 | US4737291 Charge modified microporous membrane |
| 04/12/1988 | US4737286 Porous polyphenylene isophthalamide |
| 04/12/1988 | US4737166 Separation of hydrogen sulfide and carbon dioxide from hydrogen, carbon monoxide and hydrocarbon gases; supported polymer |
| 04/12/1988 | US4737165 Plasticizer and polymer on polymeric support |
| 04/06/1988 | EP0262187A1 Method for making perforations in a solid sheet material, irradiation device for implementing the method and perforated material thus obtained. |
| 04/05/1988 | CA1234764A1 Treatment of oil recovery process waste water |
| 03/30/1988 | EP0261734A1 A process for the preparation of hydrophilic membranes and such membranes |
| 03/29/1988 | US4734196 Process for producing micro-porous membrane of ultra-high-molecular-weight alpha-olefin polymer, micro-porous membranes and process for producing film of ultra-high-molecular-weight alpha-olefin polymer |
| 03/29/1988 | US4734112 Liquid membrane |
| 03/24/1988 | DE3631804A1 Process and apparatus for producing microfilters, and a microfilter produced accordingly |
| 03/23/1988 | EP0260587A2 Solutions of fluoropolymers and their use |
| 03/22/1988 | EP0217831A4 Reversed phase membranes. |
| 03/15/1988 | US4731260 Hydrophobic filter material and method |
| 03/09/1988 | EP0259288A2 Process and dope for forming asymmetric gas separation membranes having graded density skins |
| 03/02/1988 | EP0258002A2 Waterproof article and method of making a waterproof article |
| 03/02/1988 | EP0257997A2 Plugged microporous film |
| 03/02/1988 | EP0257635A2 Permeable, porous, polymeric membrane with hydrophilic character, methods for preparing said membranes, and their use |
| 03/01/1988 | US4728346 Permselectivity |
| 02/24/1988 | EP0257011A2 Permeation modified asymmetric gas separation membranes having graded density skins |
| 02/24/1988 | EP0256530A2 Gas separation membrane |
| 01/27/1988 | EP0254334A2 Hollow fibre of polyester-amide and process for preparing it |
| 01/26/1988 | CA1231810A1 Surfactant treated polyolefinic microporous materials capable of multiple re-wetting with aqueous solutions |
| 01/21/1988 | DE3623261A1 Process for producing microscreens from polyvinylidene fluoride |
| 01/19/1988 | US4720400 Microporous metal-plated polytetrafluoroethylene articles and method of manufacture |
| 01/19/1988 | US4720345 Semipermeable membranes of modified styrene-based polymers, process for their manufacture and their use |
| 01/19/1988 | US4720343 Macroporous asymmetrical hydrophilic membrane made of a synthetic polymer |
| 01/12/1988 | US4719062 Aqueous solutions of lower alkanols |
| 01/12/1988 | CA1231318A1 Method for manufacturing microporous membrane |
| 01/12/1988 | CA1231210A1 Process for the preparation of porous bodies |
| 01/11/1988 | EP0142512A4 Treatment of membranes. |
| 01/07/1988 | EP0251376A2 Asymmetrical membrane of polyesteramide and process for preparing it |
| 01/05/1988 | US4717479 Hydrophilized porous polyolefin membrane and production process thereof |
| 01/05/1988 | US4717425 Removal of ions from molasses |
| 12/29/1987 | US4715960 Method for the modification of polycarbonate membranes, the membranes produced by such method and their use |
| 12/22/1987 | US4714725 Suflonated polyaryletherketones |
| 12/16/1987 | EP0249513A2 Hydrophilic porous membrane, method for production thereof, and plasma separator using said membrane |
| 12/15/1987 | US4713292 Multilayer composite hollow fibers and method of making same |
| 12/08/1987 | US4711793 Process for charge modifying a microphorous membrane |
| 12/02/1987 | EP0247597A1 Process for producing porous membranes |
| 12/02/1987 | EP0247596A2 Porous membrane |
| 12/01/1987 | US4710331 Compression molding, heating, slicing, cooling slowly and stretching; high-strength; uniformity |
| 12/01/1987 | EP0138841A4 Transfer of macromolecules from a chromatographic substrate to an immobilizing matrix. |
| 11/25/1987 | EP0246752A2 Fibres and hollow fibrous tubes |
| 11/24/1987 | US4708803 Liquid filtration using hydrophilic cationic isotropic microporous nylon membrane |