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| Number | Title | Issue Date |
| 8053483 | Gas adsorbent A gas adsorbent which has sufficient gas adsorptivity for noxious gas components in a cigarette when brought into contact with a gas stream having a high flow rate as that when it passes through a cigarette filter, and which releases a small amount of bad odor compo... | 11/08/2011 |
| 7279542 | Polymeric particles and fragrance delivery systems Polymeric micro- and nano-capsules formed of a spherical single hydrophobic polymer, chemically functionalised at their surface so as to comprise hydrophilic moieties thereon are disclosed. The capsules are susceptible of absorbing a perfume and of being optionally ... | 10/09/2007 |
| 7258796 | Use of a granulate for the removal of liquid, gaseous and/or dissolved constituents from a process stream The invention pertains to the use of a granulate for the removal of liquid, gaseous and/or dissolved organic constituents from a process stream, said granulate consisting of dimensionally stable, porous synthetic particles with an extracting agent having a boiling p... | 08/21/2007 |
| 7098253 | Macroporous ion exchange resins Ion exchange resins are described that are hydrophilic, crosslinked (meth)acrylic copolymers. The ion exchange resins are macroporous, have a surface area of at least 50 m2/g, and an average particle size of at least 20 micrometers. Additionally, chromato... | 08/29/2006 |
| 7094469 | Porous or non-porous substrate coated with an immobilized polymeric composition having sulfonyl groups and hydrophilic functional groups and process A porous or non-porous polymeric substrate having its surface modified with an immobilized fluorocarbon such as perfluorocarbon, polymeric composition is provided. The immobilized fluorocarbon is formed from a monomer having formula: [T—SO2Y—SO2 | 08/22/2006 |
| 7045057 | Preparation of homogeneously loaded ion exchangers A process for preparing an ion-exchangeable media within a moving-bed or simulated moving-bed device, which can create a true or simulated media flow, comprising the steps of packing the bed with ion-exchangeable media and passing a solution, containing a mixture of... | 05/16/2006 |
| 7037642 | Removing compounds from blood products with porous particles immobilized in a matrix Methods and devices are provided for reducing the concentration of low molecular weight compounds in a biological composition containing cells while substantially maintaining a desired biological activity of the biological composition. The device comprises highly po... | 05/02/2006 |
| 7022164 | Filters employing porous strongly acidic polymers A clean, high efficiency, low pressure drop, adsorptive filter material that is porous and includes an acidic functional group. The filter can include, for example, a non-woven filter composite has a porous sulfonated divinyl benzene styrene copolymer beads having s... | 04/04/2006 |
| 6992115 | Preparation of crosslinked particles from polymers having activatible crosslinking groups Crosslinked particles are provided that are useful in the manufacture of dielectric materials for use in electronic devices such as integrated circuits. The crosslinked particles are prepared by activating crosslinkable groups on synthetic polymer molecules, where t... | 01/31/2006 |
| 6984669 | Fluorinated cation exchange membrane and electrolytic soda process The present invention provides a fluorinated cation exchange membrane comprising at least two layers, a first layer made of a fluoropolymer having sulfonic acid groups and a second layer made of a fluoropolymer having carboxylic acid groups on the cathode side there... | 01/10/2006 |
| 6951713 | Absorbing pathogen-inactivating compounds with porous particles immobilized in a matrix Methods and devices are provided for reducing the concentration of low molecular weight compounds in a biological composition, while substantially maintaining a desired biological activity of the biological composition. The device comprises highly porous adsorbent p... | 10/04/2005 |
| 6930133 | Low density polymer beads Low density polymeric beads made by polymerizing monomeric building blocks into large crosslinked polymer molecules in porous, spherical bead form by droplet or suspension polymerization in the presence of a porogen. ... | 08/16/2005 |
| 6919382 | Preparation and uses of conjugated solid supports for boronic acids The invention provides novel solid supports comprising dihydroxyalkyl aminoalkyl and dihydroxyalkylaminobenzyl groups, and methods for making and using them. The supports are particularly useful for immobilizing and derivatizing functionalized boronic acids for use ... | 07/19/2005 |
| 6916853 | Compositions containing particles of highly fluorinated ion exchange polymer Solid and liquid compositions containing particles of highly fluorinated ion-exchange polymer having sulfonate functional groups with an ion exchange ratio of less than about 33. The compositions contain at least about 25% by weight of polymer particles having a par... | 07/12/2005 |
| 6881761 | Porous polymer particle, anion exchanger, producing method thereof, column for ion chromatography, and method for measuring anions Disclosed are (1) a porous polymer particle comprising a polymer substrate having ester bonds connected to a group containing a quaternary ammonium structure through a spacer molecule, (2) an alkali-resistant, high-strength porous polymer particle having ester bonds... | 04/19/2005 |
| 6815466 | Coating composition containing ion exchange resins A colloidally and sedimentation stable coating composition containing ion exchange resins is disclosed. A method of using a colloidally and sedimentation stable coating composition containing ion exchange resins is also disclosed. ... | 11/09/2004 |
| 6712895 | Bituminous foam A method of producing a bituminous foam includes supplying a bitumen in water emulsion from a tank (2) into primary and secondary heating circuits (8, 34), whereby the emulsion is heated (via heating coils 12 and 12′) and its pressure r... | 03/30/2004 |
| 6663775 | Charge mosaic membrane, its production process, method of its use, and apparatus provided with the same A charge mosaic membrane having excellent selective permeability comprises a cationic polymer component, an anionic polymer component and a matrix component. Both of the cationic polymer component and the anionic polymer component are crosslinked particul... | 12/16/2003 |
| 6534554 | Multicomponent ion exchange resins Multicomponent ion exchange resin granules containing at least one acidic resin and at least one basic resin. Each granule contains at least one microdomain of the acidic resin in contact with, or in close proximity to, at least one microdomain of the bas... | 03/18/2003 |
| 6521340 | Sulfur-containing aliphatic polymer for the selective absorption of dissolved metal species A sulfur-containing water insoluble hydrogel polymer for selectively removing trace amounts of dissolved metal species is produced from a reaction product of nitrilotriacetic acid (NTA) and polyethylenimine (PEI) which is then treated in a water-swollen s... | 02/18/2003 |
| 6127433 | Process for producing separation functional fibers and ion-exchange fibers produced therefrom Separation functional fibers are produced by exposing fibers with a core/sheath structure to an ionizing radiation and then grafting a polymerizable monomer to the fibers. Ion-exchange fibers are produced by introducing, through radiation-initiated graft ... | 10/03/2000 |
| 6090258 | Ion-exchange spacer and processes for the preparation thereof The invention provides a polymeric netting for use as an ion-conducting ser in an electrodialysis stack having charged groups incorporated in a in polymeric coating applied thereto, imparting to the spacer an average ion exchange capacity of at least 0.2... | 07/18/2000 |
| 6060525 | Removal of borate in chromatography A chromatographic composition for the selective binding of borate ion comprising support resin particle and polymers containing covalently bonded borate binding carbohydrates wherein said carbohydrates are a mono-, di- or polysaccharide of three to seven ... | 05/09/2000 |
| 5972718 | Method of detecting heparin-induced thrombocytopenia A method of detecting heparin-induced antibodies to complete a diagnosis of heparin-induced thrombocytopenia HITP is disclosed. In one embodiment, this method comprises binding human platelet factor 4 to a linear, non-glycosaminoglycan polymer carrying ne... | 10/26/1999 |
| 5856409 | Method of making hydrophobic copolymers hydrophilic A method for altering a macroporous cross-linked hydrophobic copolymeric lattice produced by precipitation polymerization in a solvent of at least one monounsaturated ester monomer and at least one polyunsaturated ester monomer soluble therein, in order t... | 01/05/1999 |
| 5808010 | Method for derivatization of cellulosic stationary phase A solid sorbent material comprising cellulose which has been modified by hydrolysis with a cellulase enzyme for a duration sufficient to increase the protein adsorption capacity of the solid sorbent material and methods for preparing the sorbent material.... | 09/15/1998 |
| 5783608 | Process for producing separation functional fibers and ion-exchange fibers produced therefrom Separation functional fibers are produced by exposing fibers with a core/sheath structure to an ionizing radiation and then grafting a polymerizable monomer to the fibers. Ion-exchange fibers are produced by introducing, through radiation-initiated graft ... | 07/21/1998 |
| 5770631 | Production process of connected microgel particles and articles treated with connected microgel particles A process is disclosed for the production of connected microgel particles. According to the process, starting microgel particles having particle sizes of 100-0.01 μm and a particle size distribution whose standard deviation is not greater than 100% of a ... | 06/23/1998 |
| 5622997 | Process for preparing a molded ion exchange resin structure A moulded ion exchange resin structure suitable for use in reactive distillation is prepared by compressing particles of an ion exchange resin precursor having chemically reactive functional groups on their surfaces, into a preform having a predetermined ... | 04/22/1997 |
| 5597850 | Sponge for the absorption of metal ions An open-celled cellulosic sponge contains a thermally insolubilized polyethyleneimine (PEI) capable of selectively removing dissolved ions from aqueous systems. By virtue of a cuboid configuration of critically selected dimensions, the insolubilized PEI i... | 01/28/1997 |
| 5595652 | Method and apparatus for in-situ remediation of water containing undesirable ionic species Undesirable ionic species are removed from water by way of a passive treatment employing apparatus in the form of a porous container which confines a multitude of pieces of sponge containing a chelation polymer. The container, preferably of tubular shape ... | 01/21/1997 |
| 5475035 | Process and apparatus for making a thermoplstic foam structure employing downstream injection of water Disclosed is a process for making a thermoplastic polymer foam structure with a blowing agent having water. The process comprises in sequence: a) melting the polymer to form a polymer melt; b) incorporating a brominated aliphatic fire retardant into the p... | 12/12/1995 |
| 5425866 | Electrically regenerable demineralizing apparatus The improved electrically regenerable demineralizing apparatus uses ion exchangers that are produced by radiation-initiated graft polymerization and that are packed in the demineralizing compartment of an electrodialyzer. The apparatus may use a mosaic io... | 06/20/1995 |
| 5346924 | Heterogeneous ion exchange materials comprising polyethylene of linear low density or high density high molecular weight A novel, heterogeneous ion exchange membrane, methods for making such a membrane, and devices containing such a membrane are disclosed. Such membranes comprise linear low or linear medium density polyethylene or high molecular weight high density polyethy... | 09/13/1994 |
| 5314922 | Ion exchange fibers and method for manufacturing the same Ion exchange fibers comprising a polymer component having a main chain of a syndiotactic poly(1,2-butadiene) structure and containing ion exchange functional groups introduced at least part of side chain ethylene groups. These fibers may be suitably forme... | 05/24/1994 |
| 5308876 | Materials for removing suspended impurities and use thereof The improved organic polymeric adsorbent is used to adsorb and remove suspended impurities present in trace amounts in the water being treated in an apparatus for producing ultrapure water for use in the semiconductor industry or in a condensate purifier ... | 05/03/1994 |
| 5308467 | Electrically regenerable demineralizing apparatus The improved electrically regenerable demineralizing apparatus uses ion exchangers that are produced by radiation-initiated graft polymerization and that are packed in the demineralizing compartment of an electrodialyzer. The apparatus may use a mosaic io... | 05/03/1994 |
| 5244929 | Molded bodies comprised of macroporous ion exchange resins, and use of said bodies Molded bodies in the form of packing bodies comprising a macroporous strongly acid or basic ion exchange resin having a voids fraction of 5-95 vol % of the macro shape without pores, a BET surface area of 0.1-1,000 sq m/g, and an ion exchange capacity of ... | 09/14/1993 |
| 5217505 | Carbonaceous adsorbents for prevention of carbon bed fires A process for removing an oxidizable organic compound from an oxidizing gas stream which includes contacting the gas stream with a bed of carbonaceous adsorbent particles, wherein the adsorbent particles comprise porous pyrolyzed particles of a polysulfon... | 06/08/1993 |
| 5204376 | Anion Exchanger and a method for treating a fluid The present invention relates to a new anion exchanger with excellent heat resistance and its use for treating a fluid to remove unwanted or unnecessary substances from it. The anion exchanger has functional groups of the formula: ##STR1##... | 04/20/1993 |
