Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01D - Separation › B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
Patents for B01D 67 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus (11,858)
11/1999
11/16/1999US5985328 Micromachined porous membranes with bulk support
11/16/1999US5985164 Method for forming a filter
11/11/1999DE19819902A1 Production of conducting polymer film, used in e.g. solar cell and sensor
11/10/1999CN1234748A Polycrylonitrlle-based hollow-fiber filtration membrane
11/09/1999US5981614 Hydrophobic-oleophobic fluoropolymer compositions
11/09/1999US5980987 Method of making a composition for separating and concentrating certain ions from mixed ion solutions
11/09/1999US5980795 Method of producing hollow fiber polymer membranes
11/09/1999US5980746 Membrane and methods of preparing and using same
11/09/1999US5980709 Method of defining an electrode area
11/09/1999US5979670 Large pore synthetic polymer membranes
11/04/1999WO1999055449A1 Membrane which comprises a blend of a polysulphone or a polyether sulphone and polyethylene oxide/polypropylene oxide substituted ethylene diamine
11/03/1999EP0749352B1 Microfabricated particle filter
11/02/1999US5977229 Hydrophilically modified polyethylene resins
11/02/1999US5976434 Method for preparing hydrophilic polypropylene membrane
11/02/1999US5976380 Article of manufacture including a surface modified membrane and process
10/1999
10/28/1999WO1999022836A3 Treatment of composite polyamide membranes with hypochlorite to improve performance
10/27/1999EP0951935A2 Method and apparatus of regenerating flat membrane modules for activated sludge
10/27/1999EP0951502A1 Porous moulded bodies of thermoplastic polymers
10/27/1999EP0951498A1 Melt-spun polysulfone semipermeable membranes and methods for making the same
10/26/1999US5972449 Porous products manufactured from polytetrafluoroethylene treated with a perfluoroether fluid and methods of manufacturing such products
10/21/1999DE19917312A1 Unit for determining position eg. liquid level has magnetostrictive wire led through measurement zone and at least one magnet movable through zone to trigger disturbances in wire
10/20/1999EP0949959A2 Polymeric membranes and polymer articles having hydrophilic surface and method for their preparation
10/19/1999US5969082 Application of sulfone, ketone and ester containing polyalkyl ether units to medical materials
10/19/1999US5969020 Uniform matrix containing dispersion of crystalline additive in crystalline thermoplastic resin formed by melting, then solidification and solvent extraction of additive, for drug delivery or medical equipment, bioabsorbable
10/19/1999US5968366 Zeolite containing composition with a selectivity enhancing coating
10/19/1999US5968358 Method for washing hollow fiber membrane
10/14/1999WO1999051765A1 Method for detecting micro-organisms in gases
10/14/1999WO1999051330A1 Organic ion-selective membranes
10/14/1999CA2330463A1 Organic ion-selective membranes
10/13/1999EP0948993A1 Porous polytetrafluoroethylene membrane
10/13/1999EP0948746A1 Membrane and methods of preparing and using same
10/13/1999EP0948392A1 Microporous membranes and uses thereof
10/07/1999WO1999050203A1 Chemical control over ceramic porosity using carboxylate-alumoxanes
10/07/1999WO1999037340A3 Biological fluid treatment system
10/07/1999DE19814715A1 Gelatinemembranfilter, Verfahren zu ihrer Herstellung und ihre Verwendung Gelatin membrane filters, processes for their preparation and their use
10/07/1999CA2327097A1 Chemical control over ceramic porosity using carboxylate-alumoxanes
10/07/1999CA2265433A1 Porous polytetrafluoroethylene membrane
10/06/1999EP0947545A1 Process for preparing highly permeable microporous polyolefin film
10/06/1999EP0946354A1 Highly asymmetric, hydrophilic, microfiltration membranes having large pore diameters
10/06/1999EP0946250A1 Hydrophilic polymeric phase inversion membrane
10/06/1999EP0946220A1 Reactive coatings
09/1999
09/30/1999WO1999048959A1 Microporous polyolefin film
09/28/1999US5958989 Highly asymmetric ultrafiltration membranes
09/23/1999WO1999047593A1 Microporous film
09/23/1999WO1999047335A1 Process of making reinforced, three zone microporous membrane
09/23/1999WO1999047247A1 Solvent-resistant pan (polyacrylonitrile) membrane
09/23/1999WO1999047246A1 Reinforced, three zone microporous membrane
09/23/1999WO1999032204A3 Permeable compositions and methods for their preparation
09/23/1999CA2322855A1 Microporous membrane
09/22/1999EP0943645A2 Solvent- and acid-stable membrane based on acrylonitrile copolymer and process for producing such a membrane
09/22/1999EP0735852B1 Liquid dispenser for sterile solutions
09/21/1999US5955029 Solid substrate microfabricated to define sample inlet port and mesoscale flow system, means to thermally regulate contents and to detect amplified polynucleotide by aggregation
09/21/1999US5954966 Membrane composition and method of preparation
09/21/1999CA2181189C Mesoscale polynucleotide amplification devices
09/16/1999WO1999046034A1 Composite hollow fiber membrane and its manufacture
09/07/1999US5948519 Battery separator
09/07/1999US5948255 Microfabricated particle thin film filter and method of making it
09/02/1999DE19811998C1 Solvent-resistant polyacrylonitrile membranes, useful especially for ultra- and nanofiltration
08/1999
08/26/1999WO1999042204A1 Process of forming a permeable gas separation material
08/25/1999EP0589897B1 Method of making membranes
08/24/1999US5942120 Composite microporous ultrafiltration membrane, method of making thereof, and separation methods
08/19/1999WO1999041001A1 Methods and systems for producing a plurality of different microporous phase inversion membranes each having any one of a plurality of different pores
08/19/1999WO1999040997A1 Membrane laminates and methods for their preparation
08/19/1999WO1999040996A1 Selective membrane and process for its preparation
08/19/1999WO1997036994A8 Sensor and modified membrane for the sensor
08/18/1999EP0935494A1 Cationically charge-modified membranes
08/17/1999US5939314 Distributed pore chemistry in porous organic polymers in tissue culture flasks
08/17/1999US5939198 Porous polytetrafluoro-ethylene and preparation
08/17/1999US5938929 Polysulfone hollow fiber semipermeable membrane
08/17/1999US5938923 Microfabricated filter and capsule using a substrate sandwich
08/10/1999US5936106 Process with porous means to control reaction rate and heat
08/10/1999US5936004 Strongly basic anion-exchanging molded bodies and a method of manufacturing the same
08/10/1999US5935845 Distributed pore chemistry in porous organic polymers
08/10/1999US5935646 Depositing an inorganic-organic polymer hybird having at least one organic constituent and inorganic constituent, on a porous substrate and removing at least a portion of the organic constituent forming a porous film; small pore size
08/10/1999US5935436 Device for simultaneously removing leukocytes and methylene blue from plasma
08/10/1999CA2134476C Fluid handling in microfabricated analytical devices
08/05/1999WO1999038604A1 Expanded porous thermoplastic polymer membranes and method and device for the production thereof
08/05/1999DE19803362A1 Geschäumte poröse Membranen aus thermoplastischen Polymeren sowie Verfahren und Vorrichtung zu ihrer Herstellung Foamed porous membranes of thermoplastic polymers as well as methods and apparatus for their preparation
08/03/1999US5932104 Filtration membrane for oleophilic organic liquids, method for producing it, and method for filtering oleophilic organic liquids
07/1999
07/29/1999WO1999037340A2 Biological fluid treatment system
07/29/1999CA2319261A1 Biological fluid treatment system
07/28/1999EP0931583A1 Spiral wound type membrane module
07/27/1999US5929587 Method and apparatus for controlling servomotor in two inertial systems
07/27/1999US5928880 Separating target cells from a fluid sample using bound proteins in multicompartmented container; quick, efficient diagnosis
07/27/1999US5928792 Process for making surface modified porous membrane with perfluorocarbon copolymer
07/27/1999US5928774 Highly asymmetric ultrafiltration membranes
07/27/1999US5928582 Irradiation and thermal induction phase separation techniques, during manufacture, microsphereulites are created by irradiation of curable agents in a casted polyolefin film
07/22/1999WO1999025788A3 Liquid crystalline single crystal hydrogels with high double refraction
07/15/1999DE19811997C1 Solvent- and acid-stable copolyacrylonitrile membrane suitable for autoclave sterilization
07/14/1999EP0838084A4 Multilayer high vertical aspect ratio thin film structures
07/13/1999US5922791 A plurality of polyimide blends comprising a solvent, and a critical solution temperature adjustment agent to enhance the miscibility of polyimides in solution
07/13/1999US5922210 Tangential flow planar microfabricated fluid filter and method of using thereof
07/08/1999DE19817364C1 Hydrophilic asymmetric membrane used in ultrafiltration and reverse osmosis
07/07/1999EP0927572A2 A polysulfone based hollow fiber membrane, and a process for preparing the same
07/07/1999CN1222169A High water content porous polymer
07/07/1999CN1221649A Method for prepn. of permeation vaporization compound membrane
07/06/1999US5919370 Made from epsilon-caprolactam-soluble polymers; hemodialysis, hemodiafiltration or hamofiltration
07/06/1999CA2134477C Analysis based on flow restriction
07/06/1999CA2134475C Polynucleotide amplification analysis using a microfabricated device
07/06/1999CA2134474C Microfabricated sperm handling devices
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