Patents
Patents for B01D 71 - Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor (23,060)
05/1995
05/24/1995EP0560899B1 Sulphonated polyorganosiloxane-based membranes, their preparation and use thereof as solid ion conductors
05/24/1995EP0549706B1 Cationic charge modified microporous membranes
05/24/1995CN1028493C Novel solid multi-component membranes
05/23/1995US5418061 Microporous polysulfone supports suitable for removal of low density lipoprotein-cholesterol
05/23/1995US5418053 Membrane from epoxy-direct grafted halogenated vinyl polymer
05/23/1995US5417832 Enhancing performance of perfluorinated ionomer membranes via dopant incorporation, method of making thereof and the membrane
05/18/1995WO1995013316A1 Process for the manufacture of microporous polyolefine strips or films
05/18/1995WO1995013125A1 Device and process for removing free hemoglobin from blood
05/18/1995CA2175913A1 Device and process for removing free hemoglobin from blood
05/17/1995CN1102748A Polytetrafluoroethylene porous film and method for manufacturing the same
05/16/1995US5415891 Forming an oxide coating on ceramic supports by oxidation of vapor deposited coating
05/16/1995US5415775 Monolithic ceramic supports for filtration membranes
05/16/1995US5415769 Separation agent comprising aliphatic or aromatic ester of polysaccharide
05/11/1995DE4410763C1 Pervaporation membranes and use thereof
05/11/1995DE4409906C1 Composite membrane and process for the production thereof
05/10/1995EP0652045A2 Aromatic polyethersulfone gas separation membranes
05/10/1995EP0652044A1 Process for pyrifiying organic synthesis compounds
05/10/1995EP0652043A2 Aromatic polyetherketone gas separation membranes
05/10/1995EP0652042A1 Composite hydrogen separation metal membrane
05/09/1995US5413852 SIXEF™-durene polyimide hollow fibers
05/09/1995CA2135153A1 Composite hydrogen separation metal membrane
05/06/1995CA2135101A1 Aromatic polyetherketone gas separation membranes
05/06/1995CA2135006A1 Aromatic polyethersulfone gas separation membranes
05/04/1995WO1995011739A1 Membrane and non-membrane sour gas treatment process
05/04/1995WO1995011738A1 Sour gas treatment process
05/04/1995CA2174347A1 Sour gas treatment process
05/03/1995EP0650759A1 Method for forming an asymmetrical ceramic membrane
05/02/1995US5412005 Biodegradable polymeric compositions based on starch and thermoplastic polymers
05/02/1995US5411667 Method of selectively separating lead ions
05/02/1995US5411663 Crosslinked copolymers for membranes with methoxy substituted groups
04/1995
04/26/1995EP0649676A1 Fluoropolymer posttreatment of gas separation membranes
04/26/1995CN1028284C Process for preparing selective air penetrating film
04/25/1995US5409525 Hydrous gel membranes for gas separation
04/25/1995US5409515 Filter apparatus and filter element
04/21/1995CA2118531A1 Fluoropolymer posttreatment of gas separation membranes
04/20/1995CA2118429A1 Blends of polyethersulfones with aromatic polyimides, polyamides or polyamide-imides and gas separation membranes made therefrom
04/19/1995EP0648812A2 Blends of polyethersulfones with aromatic polyimides, polyamides or polyamide-imides and gas separation membranes made therefrom
04/19/1995CN1101622A Method for preparing monodisperse aluminium collosol
04/19/1995CN1101590A A composite filter material
04/19/1995CN1028208C Making technology of reinforcement super filtering membrane
04/18/1995US5407703 Hydrosilation carrier, applying metal oxide coating film, drying, heating
04/18/1995US5407581 Filter medium having a limited surface negative charge for treating a blood material
04/18/1995US5407467 Passing gas stream containing hydrogen sulfide, carbon dioxide, methane through selective membrane unit to remove carbon dioxide and hydrogen sulfide
04/18/1995US5407466 Membrane provides high selectivity for hydrogen sulfide over methane
04/13/1995WO1995009989A1 Micromachined flow switches
04/13/1995WO1995009988A1 Micromachined filters and flow regulators
04/13/1995WO1995009987A1 Micromachined fluid flow regulators
04/12/1995EP0647466A2 Cellulosic membranes
04/12/1995EP0647250A1 Porous polytetrafluoroethylene and preparation
04/12/1995EP0647156A1 Hollow fiber membrane incorporating a surfactant and process for preparing same
04/11/1995US5405529 Ceramic filter and manufacturing method therefor
04/06/1995WO1995009195A1 Polymer membrane having a high permeability for alkanol
04/05/1995EP0646406A1 Novel polyimide gas separation membranes
04/05/1995EP0646185A1 Production of metals from minerals
04/05/1995EP0646043A1 Hydrophilic membranes.
04/05/1995EP0563098B1 Multi-block polymer comprising an oxazolidone prepolymer chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations
04/04/1995US5403524 Porous polytetrafluoroethylene and a process for the production thereof
04/04/1995US5403485 Dialysis membrane made of cellulose acetate
04/04/1995CA1335064C Process for preparing composite membranes
03/1995
03/30/1995WO1995008581A1 Trifluorostyrene and substituted trifluorostyrene copolymeric compositions and ion-exchange membranes formed therefrom
03/30/1995WO1995008360A1 Method and device for producing a hypoxic gas mixture
03/28/1995US5401891 Selective cracking of low purity dicyclopentadiene to monomeric cyclopentadiene, distillation, selective dimerization and purification via membrane pervaporation
03/28/1995US5401410 Amine salts of sulfonated polyethers
03/28/1995CA2133046A1 Highly selective asymetrical membranes used for the separation of gases, and process for their fabrication
03/28/1995CA1334938C Method for processing oil emulsions or microemulsions in polluted waters
03/28/1995CA1334913C Fluid treatment system having low affinity for porteinaceous materials
03/28/1995CA1334912C Bicomponent moisture barrier poly(etherimide) ester films
03/23/1995DE4330949A1 Process for producing zeolite high-temperature molecular sieve membranes having separating and reactive properties
03/22/1995EP0643616A1 Micromechanical filter and method for the manufacture thereof
03/22/1995CN1100338A Fluid separation composite membranes prepared from sulfonated aromatic polymers in lithium salt form
03/22/1995CN1100337A Modified poly(phenylene oxide) based membranes for enhanced fluid separation
03/21/1995US5399751 Method for recovering carboxylic acids from aqueous solutions
03/16/1995DE4330163A1 Porous ceramic filter
03/15/1995EP0642825A1 Bleach resistant polysulfone/polyrethane composite membranes
03/15/1995EP0642381A1 Filtration fabric laminates.
03/15/1995EP0436720B1 Hydrolyzed membrane and process for its production
03/15/1995CN1100001A The production and use of improved composite fluid separation membranes
03/08/1995EP0641250A1 Inorganic membrane for microfiltration, and a process for production of such an inorganic membrane.
03/08/1995EP0641249A1 Supported microporous membranes
03/07/1995US5396019 Crosslinked in situ; selective permeation
03/07/1995US5395636 Method of pretreating a porous medium
03/07/1995CA1334650C Filter for separating solid particles from hot gaseous or liquid media
03/02/1995WO1995006083A1 Strongly alkaline anion exchange membranes and process for producing the same
03/02/1995WO1995005890A1 Membranes prepared from crosslinkable soluble polymers
03/02/1995CA2169555A1 Membranes prepared from crosslinkable soluble polymers
03/01/1995EP0640007A1 Hydrophilic microporous polyolefin membrane
03/01/1995EP0561875B1 Dioxole/tfe copolymer composites
02/1995
02/28/1995US5393432 Copolymer of diallylamine salt and derivatives with acrylic acid or copolymer of diallyamine salt, sulfur dioxide and acrylic acid; permselectivity for water vapors, thermal stablity
02/28/1995US5393325 Composite hydrogen separation metal membrane
02/28/1995US5393324 Aromatic polyetherketone gas separation membranes
02/28/1995US5393323 Aromatic polyethersulfone gas separation membranes
02/23/1995WO1995005256A1 Process for the production of porous membranes
02/23/1995CA2169537A1 Process for the production of porous membranes
02/22/1995EP0639223A1 Microfabricated sperm handling devices.
02/22/1995EP0639106A1 Polyvinylidene fluoride microporous membrane and method
02/22/1995CN1027680C Catallytic high molecular gas separation membrance
02/22/1995CN1027679C Gas separation membrance with selective adsorbility
02/21/1995US5391580 Polymer layer directly attached to polypropylene tube and active heparin linked through covalent bond to the layer
02/21/1995US5391219 Method for the separation and concentration of gas using a composite or asymmetric fluorine-containing polyimide membrane
02/15/1995EP0638949A1 Solid, polymeric, polyether based electrolyte