|
Match
|
Document |
Document Title |
|
|
7473412 |
Process for the purification of aqueous peroxygen solutions, solutions obtainable thereby and their use
Process for the purification of aqueous peroxygen solutions comprising the treatment of an aqueous peroxygen solution with (a) at least one membrane purification step, (b) optionally at least one...
|
|
|
7365142 |
Polyelectrolyte complex films for analytical and membrane separation of chiral compounds
The present invention is directed to enantioselective polyelectrolyte complex films. Further, said films may be free or isolated membranes, or coatings on substrates such a porous substrates,...
|
|
|
7339008 |
Membranes for selective gas separation
The present invention relates to the use of a hydrophilic, biocompatible and biodegradable elastomer membrane or film for the selective separation of a gas mixture. Accordingly, processes for...
|
|
|
7138058 |
Acid stable membranes for nanofiltration
Semi-permeable membranes are described that allow for the efficient processing of many liquid based feed solutions, particularly those that contain acids. The membranes of this invention are able...
|
|
|
7101947 |
Polyelectrolyte complex films for analytical and membrane separation of chiral compounds
The present invention is directed to enantioselective polyelectrolyte complex films. Further, said films may be free or isolated membranes, or coatings on substrates such a porous substrates,...
|
|
|
7056726 |
membrane for encapsulation chamber of cells producing at least a biologically active substance and bioartificial organ comprising same
The invention concerns a semipermeable chamber for encapsulation of cells producing at least a biological substance of interest, characterised in that it consists of a porous polycarbonate...
|
|
|
7001518 |
Low pressure reverse osmosis and nanofiltration membranes and method for the production thereof
Novel low pressure reverse osmosis and nanofiltration membranes and a process for their preparation are disclosed. Polyamide reverse osmosis membranes are contacted with organic sulfonic acid...
|
|
|
6974544 |
Membrane filtration
A method for membrane filtration of effluent water containing suspended matter reduces membrane clogging and improves filtration capacity of the membrane. The method includes adding a dose of a...
|
|
|
6972094 |
Method of recovering fluorochemical surfactant
Upon recovering a fluorochemical surfactant from a fluorochemical-containing aqueous solution, there is provided a method for recovering the fluorochemical surfactant from the aqueous solution...
|
|
|
6972093 |
Onboard fuel separation apparatus for an automobile
An onboard fuel separation apparatus separates a material fuel (gasoline) into a high-octane fuel having a higher octane value than the material fuel and a low-octane fuel having a lower octane...
|
|
|
6857162 |
Cleaning and/or treatment device
The present invention relates to a cleaning and/or treatment device for cleaning and/or treating surfaces such as floors, pavements and carpets. The invention particularly relates to a cleaning...
|
|
|
6797172 |
Degumming of edible oils by ultrafiltration
A process for refining and degumming edible oils by ultrafiltration which produces a permeate fraction with reduced phosphatide content and retentate with increased phosphatide content, and wherein...
|
|
|
6773601 |
Method for the removal of particulate matter from aqueous suspension
Method for the removal of particulate matter from aqueous suspension comprising steps of establishing value of pH and of Zeta potential of particles in the suspension; providing a porous filter...
|
|
|
6649061 |
Membrane process for separating sulfur compounds from FCC light naphtha
A process for the separation of sulfur compounds from a hydrocarbon mixture using a membrane is provided. Preferred hydrocarbon mixtures are oil refining fractions such as light cracked naphtha....
|
|
|
6616847 |
Method for producing crystals from solutions
The invention relates to a method for producing crystals from thermally sensitive solids. According to this method, the solid is dissolved in at least one solvent and the solution is concentrated...
|
|
|
6488856 |
Process for purifying a liquid hydrocarbon product
The invention relates to a process for purifying a liquid hydrocarbon product consisting of 5% by weight or less of high molecular weight contaminants having a molecular weight of at least 1000,...
|
|
|
6479300 |
Metal loaded ligand bound membranes for metal ion affinity chromatography
Methods, compositions and devices for purifying polypeptides and/or proteins using metal loaded ligand bound membranes by metal ion affinity chromatography are described.
|
|
|
6419830 |
Surface modified polymer beads
A polymeric resin is disclosed in the form of beads or particles having a coating thereon which renders the resin blood compatible. The resin comprises divinylbenzene monomer which has a porosity,...
|
|
|
6383391 |
Water-and ion-conducting membranes and uses thereof
Water- and ion-conducting membranes composed of sulfonated statistical arylvinyl polymers, the arylvinyl polymer comprising at least one arylvinyl monomer and at least one olefin monomer and...
|
|
|
6379551 |
Method of removing metal ions using an ion exchange membrane
The present invention provides an ion exchange membrane having a porous polymeric support grafted with an organic moiety to which is covalently bonded at least one ion exchange group, and methods...
|
|
|
6358754 |
(Bio)chemical reagent solid phases, process for their production and their applications
Novel solid phase reaction supports are disclosed. The solid phase reaction supports include (a) a solid phase carrier having a multiplicity of NH 2 functional groups; (b) a coupling compound...
|
|
|
6333018 |
Process for the industrial production of high purity hydrogen peroxide
Process for the industrial production of hyperpure hydrogen peroxide also having high titre up to 60-70% by weight characterized in that the hydrogen peroxide produced in an industrial plant is...
|
|
|
6329182 |
Method of producing oligosaccharide syrups, a system for producing the same and oligosaccharide syrups
The present invention relates to a method of producing oligosaccharide syrups, in particular to the production of syrups having a high concentration of saccharides with a degree of polymerization...
|
|
|
6280853 |
Composite membrane with polyalkylene oxide modified polyamide surface
A composite membrane and method for making the same, comprising a porous support and a crosslinked polyamide surface having polyalkylene oxide groups grafted thereto. The subject membrane provides...
|
|
|
6258276 |
Microporous membranes and uses thereof
Charged membranes comprise a porous substrate and a cross-linked polyelectrolyte or hydrogel located in the pores of the substrate and are useful in a variety of membrane separation processes,...
|
|
|
6252038 |
Method for selectively separating hydrocarbons
A method for separating specific hydrocarbons from a hydrocarbon mixture of hydrocarbons using a membrane made of a fluorine-containing polyimide resin having high separation ability with regard to...
|
|
|
6221476 |
Polymeric membranes functionalized with polyhydroxypyridinone ligands
Compositions and methods for selectively binding metal ions from a source solution comprise using a polyhydroxypyridinone-containing ligand covalently bonded to a membrane support having the...
|
|
|
6187987 |
Recovery of aromatic hydrocarbons using lubricating oil conditioned membranes
Permselective separation of aromatic hydrocarbons from non-aromatic hydrocarbons in a feed stream is accomplished using improved asymmetric membranes. The preferred membranes are fashioned from a...
|
|
|
6187570 |
Electrodialysis methods for purification and recovery of gluconic acid derivatives
A process for purifying and concentrating a gluconic acid derivative, such as 2-keto-L-gulonic acid, comprising introducing a non-viable and/or acidified fermentation medium or an in-vitro reactor...
|
|
|
6093325 |
Method of dye removal for the textile industry
The invention comprises a method of processing a waste stream containing dyes, such as a dye bath used in the textile industry. The invention comprises using an inorganic-based polymer, such as...
|
|
|
6075073 |
Latices from emulsified hydrocarbon rubber solutions by membrane separation
Rubbery polymers in hydrocarbon solutions are emulsified in aqueous liquids and converted to latices by partitioning the emulsion through a membrane of selective permeability to the hydrocarbon...
|
|
|
6004466 |
Recovery and reuse of sugar-derived nonionic surfactants from aqueous solutions
Contaminated aqueous systems can be cleaned using an ultra-filtration process that allows for the recovery of high yields of the surfactant employed therein for recycle and reuse. The system...
|
|
|
6001255 |
Process for the production of water-soluble salts of carboxylic and amino acids
The invention provides a process for the production and utilization of water-soluble salts selected from the group consisting of water-soluble salts of carboxylic acids and water-soluble salts of...
|
|
|
5932104 |
Filtration membrane for oleophilic organic liquids, method for producing it, and method for filtering oleophilic organic liquids
The invention is to provide a filtration membrane for oleophilic organic liquids, which has reduced filtration resistance and increased filtration efficiency and of which the filtration capacity...
|
|
|
5876605 |
Preparation of plasma or serum sample from whole blood
The method of the invention is for preparing a plasma or serum sample from whole blood and includes mixing an aqueous solution of an inorganic salt or an amino acid or salt thereof with the whole...
|
|
|
5876602 |
Treatment of composite polyamide membranes to improve performance
Composite polyamide reverse osmosis membranes are treated with an aqueous chlorinating agent at a concentration of 200 to 10,000 ppm for a time sufficient to improve flux, lower salt passage and...
|
|
|
5869297 |
Nanofiltration process for making dextrose
A nanofilter membrane is used to filter the outflow of a food processing stream which begins with a starch slurry and ends with a glucose syrup which in its preferred form is about 95% dextrose and...
|
|
|
5858238 |
Salvage of autologous blood via selective membrane/sorption technologies
Methods and apparatuses for salvaging blood from a patient are disclosed. A blood salvaging and/or blood processing circuit coupled to a cardiopulmonary bypass circuit, cardiotomy circuit, or...
|
|
|
5783086 |
Filter for a wet/dry vacuum cleaner for wet material collection
The present invention is an improved method of employing a wet/dry vacuum cleaner for wet material pick-up. By employing a hydrophobic and air permeable filter material, such as an expanded...
|
|
|
5766439 |
Production and recovery of organic acids
A process is described for producing organic acids such as lactic acid. The process includes the steps of producing lactic acid by fermentation, resulting in an aqueous fermentation broth...
|
|
|
5747089 |
Method of making molasses product having low hygroscopicity and sufficient non-caking properties
A process for manufacturing a high molecular weight molasses product having improved drying properties, which includes: feeding starting material molasses having a RT value of 8-45% and a color of...
|
|
|
5700374 |
Pervaporation membranes and use thereof
A membrane comprising a pore-free separation layer, wherein the separation layer consists of poly-dimethyl aminoethyl methacrylate homopolymers or N-vinylpyrrolidone dimethyl aminoethyl...
|
|
|
5698105 |
Polymer porous structure and process
A reverse osmosis membrane having a support which itself has properties of salt rejection laminated to a layer of a cross-linked polyol. The support is a sulphonated aromatic polyether sulphone,...
|
|
|
5695702 |
Thermoplastic hollow fiber membrane module and method of manufacture
A hollow fiber membrane module and its method of manufacture are disclosed wherein the module is fabricated utilizing superior hollow fiber materials, namely high molecular weight (i.e. molecular...
|
|
|
5681728 |
Method and apparatus for the recovery and purification of organic acids
The present invention relates to methods and apparatus for reducing the fouling of ion-selective membranes used in the electrodialytic purification of organic acids. More particularly, the present...
|
|
|
5660984 |
DNA isolating apparatus comprising a non-porous DNA binding, anion exchange resin and methods of use thereof
This invention relates to isolating a DNA sample from a heterogeneous mixture of the DNA and other compounds. The invention relates in particular to isolating a plasmid DNA sample from a cleared...
|
|
|
5651894 |
Water purification system and method
An ultrapure water purification scheme that incorporates the use of certain RO filtration membranes that are especially susceptible to oxidative attack employs the combination reducing/metals...
|
|
|
5651877 |
Lubricating oil dewaxing with membrane separation
A semicontinuous process for solvent dewaxing a waxy petroleum oil feed stream including the steps of: diluting of the waxy oil feed stream with solvent; feeding cold oil/solvent/wax mixture to a...
|
|
|
5646205 |
Ion complex membrane and a method for producing same
An ionomer for an ion complex membrane useful for the separation of water-organic solvent by osmosis or low pressure osmosis as well as by pervaporation and a method for producing ion complex...
|
|
|
5626761 |
Chemical and particulate filtration system/apparatus
A chemical and particulate filtration system and method are disclosed. The method includes contacting a liquid to be filtered, in a reverse flow manner, with a molecular absorption filter media and...
|