Patents
Patents for B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor (23,060)
09/1987
09/02/1987EP0235003A1 Hydrotreatment process of heavy hydrocarbons in liquid phase in the presence of a dispersed catalyst
09/02/1987EP0234727A1 Porous anodic aluminium oxide films
09/01/1987US4690873 Polyimide from diaminodiphenylene sulfide, sulfoxide or sulfone
09/01/1987US4690766 Chemically modified semipermeable polysulfone membranes and their use in reverse osmosis and ultrafiltration
09/01/1987US4690765 Chemically modified semipermeable membranes and their use in reverse osmosis and ultrafiltration
09/01/1987CA1226389A1 Miscibile polymer blends containing poly(2-alkyl-2- oxazoline)
08/1987
08/25/1987US4689267 Composite hollow fiber
08/25/1987US4689150 Separation membrane and process for manufacturing the same
08/25/1987CA1225806A1 Macroporous asymmetrical hydrophilic membrane made of a synthetic polymer
08/24/1987EP0221959A4 Removing and recovering plant polyphenols.
08/19/1987EP0232442A1 Improved blood-purifying membrane and process for preparation thereof
08/18/1987US4687551 Porous films and method of forming them
08/12/1987EP0231432A2 Cross-flow microfilter
08/11/1987US4686131 Silylated polyphenylene ether membrane for gas separation
08/11/1987US4686044 Polycarbonate-polyether-copolymer membrane
08/11/1987US4685940 Using carbon membranes
08/04/1987US4684376 Process for the modification of aromatic polymers via Friedel-Crafts reactions to produce novel polymers and the use thereof
07/1987
07/29/1987EP0229808A1 Polyamide membranes
07/29/1987CN86108433A Polymer/liquid crystal composite semipermeable membranes and process for use thereof
07/22/1987EP0229132A1 Flooded biological film reactor for water treatment, with gas charging via a membrane.
07/21/1987US4681605 Ethyl cellulose
07/15/1987EP0228885A2 Use of porous membrane in reaction process
07/14/1987US4680355 Process for preparation of fluorine containing polymer films
07/14/1987CA1224092A1 Microporous metal-plated polytetrafluoroethylene articles and method of manufacture
07/09/1987EP0207951A4 Osmotic concentration by membrane.
07/08/1987EP0228248A2 Composite semipermeable membranes
07/08/1987EP0228072A2 Filtration membrane and method of making the same
07/07/1987US4678833 Miscible polymer blends containing poly(2-alkyl-2-oxazoline)
07/07/1987US4678581 Polymethyl methacrylate hollow fiber type ultrafiltration membrane and process for preparation of the same
07/07/1987US4678555 Treating with sequence of solvents
07/01/1987EP0227299A2 Polymer/liquid crystal composite semipermeable membranes and process for the use thereof
07/01/1987EP0226738A1 Filamented, hollow microspheres and applications thereof
07/01/1987CN85109400A Osmotic concentration by membrane
06/1987
06/24/1987EP0226141A2 Fluorinated polymeric membranes for gas separation processes
06/23/1987US4675090 Electrodialysis using a membrane comprising an animated graft polymer support
06/16/1987US4673717 Process for the modification of aromatic polymers via Friedel-Crafts reactions to produce novel polymers and the use thereof
06/16/1987US4673695 Forming a solution of polmer and solvent, then controlled cool ing/
06/16/1987US4673504 Nylon film bonded to a cationic charge modifying polymer
06/16/1987US4673418 Mixing membrane forming polymer, solvent, and swelling agent, spread to form thin film, then evaporation
06/16/1987CA1223099A1 Cross-linking polyphenylene oxide
06/16/1987CA1222892A1 Non-porous hydrogen diffusion membrane and utilization thereof
06/09/1987EP0162077A4 Collagen gel, process for making it and membrane articles made from said gel.
06/09/1987CA1222847A1 Amino-ketone cross-linked polyphenylene oxide
06/03/1987EP0224444A1 Process for manufacturing a partially permeable membrane
06/03/1987EP0224443A1 Process for manufacturing a micro filter
06/02/1987US4670341 Hollow fiber
06/02/1987US4670146 Containing sulfonic group, and polyethylenic membrane containing sulfonic group; separation, dialysis
06/02/1987CA1222594A1 Cross-linked polyphenylene oxide
05/1987
05/27/1987CN86105092A Hollow fiber film used in artificial lung, its manufacture and the artificial lung using this kind of film
05/26/1987US4668706 Substituted aliphatic polyamide porous membranes
05/26/1987US4668396 Dialysis membrane of modified cellulose with improved biocompatibility
05/26/1987CA1222107A1 Membrane comprising regenerated cellulose, having improved diffusion properties, and process for its manufacture
05/21/1987WO1987002904A1 Polymer membrane for separating liquid mixture
05/20/1987EP0221959A1 Removing and recovering plant polyphenols.
05/19/1987US4666991 Perfluoroalkyl acrylate
05/19/1987US4666668 Gas-permeable membrane, and blood oxygenator based on gas-permeable membrane
05/19/1987US4666644 Method of making asymmetrical layered structures from polyalkylene sulfone resins
05/19/1987US4666468 Gas separations using membranes comprising perfluorinated polymers with pendant ionomeric moieties
05/12/1987US4665039 Leaching with acid or base
05/12/1987US4664681 Heterogeneous membrane and process for production thereof
05/12/1987US4664669 Composite hollow fiber-type separation membranes, processes for the preparation thereof and their use
05/07/1987WO1987002682A1 Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups
05/06/1987EP0221046A2 Modified polymeric surfaces and process for preparing same
05/06/1987EP0220764A1 Chemically durable porous glass and process for the manufacture thereof
05/06/1987EP0220753A1 Process for the separation of solvents from hydrocarbons dissolved in said solvents
05/06/1987EP0220660A2 Semi-permeables membranes prepared via reaction of cationic groups with nucleophilic groups
05/05/1987US4663050 Semipermeable membranes prepared from polymers containing adjacent, pendent carboxy groups
05/05/1987CA1221493A1 Compounds and method of preparation by chlorosulfonation of difficulty sulfonatable poly(ether sulfone)
05/05/1987CA1221491A1 Heterogeneous sulfonation process for difficulty sulfonatable poly(ether sulfone)
04/1987
04/29/1987EP0219878A2 Gas separation process and membrane
04/29/1987CN86107568A Modified polymeric surfaces and process for preparing same
04/28/1987US4661526 Cross linked porous membranes
04/28/1987EP0167594A4 Cross-flow filtration related applications.
04/28/1987CA1220990A1 Reverse osmosis membrane and method for the preparation thereof
04/23/1987WO1987002267A1 Blood serum test strip
04/22/1987EP0219383A1 Use of sinterable powders of silicon carbide having a particular grain size distribution for producing porous ceramic filter elements, and ceramics thus obtained
04/22/1987EP0219125A2 Coating process for composite reverse osmosis membranes
04/21/1987US4659474 Crosslinking thin polymer layer deposited on porous substrate
04/15/1987EP0217831A1 Reversed phase membranes.
04/14/1987US4657564 Fluorinated polymeric membranes for gas separation processes
04/09/1987WO1987002046A1 Poly(di-substituted acetylene)/polyorganosiloxane graft copolymer and gas separation membrane
04/08/1987EP0217698A2 Method for the manufacture of a porous membrane for separation of blood components
04/08/1987EP0217212A2 Semipermeable composite membrane and process for preparation thereof
04/07/1987US4655807 Fluorine-containing acrylate or methacrylate polymer
04/01/1987EP0216633A2 Composite membrane comprising porous hollow fibers and process for producing the same
04/01/1987EP0216622A2 Microporous membrane laminate
03/1987
03/26/1987WO1987001694A1 Thin microporous layers with open porosity having conduction properties
03/24/1987US4652283 Polyphenylene oxide membrane having chemically bonded coating
03/18/1987EP0214792A2 Polymer alloys of aminopolysiloxanes with brominated derivatives of polyphenylene oxide
03/18/1987EP0214360A2 Process for making and for enhancing the selectivity of an integral asymmetric membrane
03/18/1987EP0214346A1 Cellulose acetate membrane, its preparation and its use for oil-polar solvent separation
03/17/1987US4650711 Method for sizing polytetrafluoroethylene fabrics
03/17/1987US4650551 Sizing polytetrafluoroethylene
03/11/1987EP0213944A2 Novel cellulose derivative, process for preparing the same and sulfur dioxide gas permselective membrane comprising the same
03/03/1987US4647297 Benzyl substituted phenylene oxide membrane
02/1987
02/25/1987EP0211633A2 Semipermeable composite membrane
02/24/1987US4645602 Process for producing reinforced microporous membrane
02/17/1987US4644046 Blend of silicon containing polyamine, polysiloxane, and diisocynate group
02/17/1987US4644043 High strenght, stability
02/17/1987US4643829 Multilayer reverse osmosis membrane in which one layer is poly-meta-phenylene cyclohexane-1,3,5-tricarboxamide