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| Number | Title | Issue Date |
| 7968612 | Modified ion exchange resin and process for producing bisphenols There is provided a modified ion exchange resin catalyst which exhibits higher bisphenols selectivity than the conventional modified ion exchange resins in processes wherein bisphenols are produced by reacting a phenolic compound with ketones, and to provide such a ... | 06/28/2011 |
| 7846982 | Proton conducting electrolyte membrane having reduced methanol permeability and the use thereof in fuel cells The present invention relates to a proton-conducting electrolyte membrane obtainable by a process comprising the steps: A) swelling a polymer film with a liquid comprising a vinyl-containing sulphonic acid and B) p... | 12/07/2010 |
| 7846983 | Proton conducting electrolyte membrane for use in high temperatures and the use thereof in fuel cells The present invention concerns a proton-conducting electrolyte membrane obtainable by a method comprising the following steps: A) expanding a polymer film with a liquid that contains a vinyl-containing phosphonic acid, and B) polymerisation... | 12/07/2010 |
| 7563828 | Solid state proton conductor system derived from hybrid composite inorganic-organic multicomponent material A polysesquioxane composition, comprising (i) a polysesquioxane matrix comprising sesquioxane moieties comprising a metallic element; (ii) a hydrophilic component; and (iii) a proton-conducting component, is provided. The metallic element can be silicon, aluminum, t... | 07/21/2009 |
| 7435498 | Polymer electrolyte membranes crosslinked by nitrile trimerization A method is provided for making a crosslinked polymer electrolyte, typically in the form of a membrane for use as a polymer electrolyte membrane in an electrolytic cell such as a fuel cell, by trimerization of nitrile groups contained on groups pendant from the poly... | 10/14/2008 |
| 7399792 | Solid reagents An object of the present invention is to provide a novel solid reagent capable of solving the problems of conventional solid reagents based on resin beads. The present invention relates to a solid reagent comprising an organic polymer base in which a polymer ... | 07/15/2008 |
| 7390853 | Solid reagents An object of the present invention is to provide a novel solid reagent capable of solving the problems of conventional solid reagents based on resin beads. The present invention relates to a solid reagent comprising an organic polymer base in which a polymer ... | 06/24/2008 |
| 7368505 | Graft copolymers This invention relates to methods of making graft copolymers, and articles having such graft copolymers. The methods may provide better control than in radicalization or photoinitiated polymerization techniques. For example, a graft copolymer can be prepared by reac... | 05/06/2008 |
| 7332530 | Proton-conducting polymer membrane comprising a polymer with sulphonic acid groups and use thereof in fuel cells The present invention relates to a proton-conducting polymer membrane comprising polymers containing sulfonic acid groups, obtainable by a process comprising the steps of A) mixing vinyl-containing sulfonic acid with one or more aromatic tetraamino comp... | 02/19/2008 |
| 7323109 | Composition comprising metal-ion sequestrant This invention relates to a composition of matter comprising a functionalized mordant polymer comprising a cationic polymer having an adsorbed metal-ion sequestrant, wherein the metal-ion sequestrant has a stability constant greater than 1010 with iron (I... | 01/29/2008 |
| 7291312 | Ozone removing material and method for preparing the same An object of the present invention is to solve problems of conventional ozone-scavenging materials and to provide an ozone-scavenging material capable of effectively decomposing/removing ozone at low cost. To attain the above object, the present invention provides a... | 11/06/2007 |
| 7282153 | Method for removal of arsenic from water A method for removing arsenic from water by contacting water with a strong base anion exchange resin comprising at least one metal ion or metal-containing ion whose arsenate salt has a Ksp no greater than 10−5, provided that the metal is not ... | 10/16/2007 |
| 7279244 | Fuel cell, polyelectrolyte and ion-exchange resin use for same The object of this invention is to provide a solid polymer electrolyte which is excellent in durability and of low cost, and membranes, solutions for electrode catalyst coating, membrane/electrode assemblies and fuel cells which use the electrolyte. According to thi... | 10/09/2007 |
| 7265159 | Monodisperse anion exchangers Process for preparing monodisperse weakly basic or optionally strongly basic anion exchangers of the poly(meth)acrylamide type, the ion exchangers themselves and their use. ... | 09/04/2007 |
| 7261879 | Iodinated anion exchange resin and process for preparing same The present invention relates to iodinated resins. It relates in particular to a process for preparing a polyiodide-resin wherein an anion exchange resin is contacted with a material capable of donating a member absorbable by the resin so as to convert the resin to ... | 08/28/2007 |
| 7261816 | Ion-exchange filter A fuel cell system includes an ion-exchange filter, which is provided with a cartridge which is filled up with an ion-exchange resin. The cartridge includes one of a pressure-loss emphasizing type cartridge and an ion-exchange efficiency emphasizing type cartridge, ... | 08/28/2007 |
| 7211203 | Polymer electrolyte, proton conductive membrane and membrane-electrode assembly Disclosed are a polymer electrolyte having improved hot water resistance and radical resistance, a proton conductive membrane comprising the polymer electrolyte, and a membrane-electrode assembly including the proton conductive membrane. The polymer electroly... | 05/01/2007 |
| 7169822 | Polymeric actuator A polymeric actuator of simple structure, capable of being easily miniaturized, showing quick response and capable of generating large displacement. The polymeric actuator includes an ion-exchange resin product and metal electrodes. The ion-exchange resin product co... | 01/30/2007 |
| 7163964 | Method for preparing an ion exchange media This invention presents an ion exchange media including a plurality of cation exchange zones and anion exchange zones in flow paths that are contained in a substantially nonporous resin transport framework. During electrodeionization and other potential applications... | 01/16/2007 |
| 7147891 | Polymer substrate coated with weak cationic-exchange functional layer A method for making a weak cation-exchange (carboxylic acid) medium comprising contacting a solution of a functional organic polymer having carbon to carbon double bond unsaturation and having weak cationic exchange functional moieties or precursors thereof in a sol... | 12/12/2006 |
| 7147845 | Antimicrobial silver ion complex resinates The present invention relates to novel antimicrobial silver ion complex resinates. More particularly, the present invention contemplates silver ion complex resinate compositions comprising a silver-thiosulfate ion complex loaded onto an organic anion exchange resin.... | 12/12/2006 |
| 7112614 | Crosslinked polymer A method is provided for obtaining crosslinked polymers, particularly fluorinated polymers having pendent sulfonic acid groups, by crosslinking through pendent groups which include a sulfonyl chloride group (—SO2Cl). The sulfonyl chloride group may be r... | 09/26/2006 |
| 7098252 | Preparation of macroreticular polymers The present invention relates to a method of preparing porous macroreticular polymers comprising polymerizing one or more monoethylenically unsaturated monomers in the presence of a silicone based porogen. ... | 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 |
| 7077964 | Process for preparing monodisperse ion exchangers having chelating functional The present invention relates to a process for preparing novel, monodisperse ion exchangers having chelating functional groups, and their use for adsorbing metal compounds, in particular, heavy metal compounds and noble metal compounds, and also for extracting alkal... | 07/18/2006 |
| 7037949 | Ion-exchange resin membrane and method for producing the same A reactive liquid is coated on an ion exchange resin precursor membrane for the hydrolysis treatment. Preferably, a reactive liquid having a viscosity of not lower than 50 mPa·s or a small surface tension is used. Said precursor membrane is also subjected to the hy... | 05/02/2006 |
| 7022743 | Fuel cell, polyelectrolyte and ion-exchange resin used for same The object of this invention is to provide a solid polymer electrolyte which is excellent in durability and of low cost, and membranes, solutions for electrode catalyst coating, membrane/electrode assemblies and fuel cells which use the electrolyte. According to thi... | 04/04/2006 |
| 7022744 | Ion exchanger for lipoproteins separation and lipoproteins separation method using the same A composition useful for separating lipoproteins, such as high density lipoprotein (HDL), low density lipoprotein (LDL), very low density lipoprotein (VLDL) and modified lipoproteins with a high degree of accuracy by ion-exchange based procedures. The composition co... | 04/04/2006 |
| 7001929 | Proton conductive membrane having improved thermal stability The invention provides a proton conductive membrane excellent in heat resistance, which has sulfonic acid as ion exchange groups. The proton conductive membrane comprises a nitrogen-containing compound that can be mixed with water in arbitrary proportions and has a ... | 02/21/2006 |
| 6986960 | Poly (arylene ether sulfone) having sulfoalkoxy group, process of producing the same, and polymer electrolyte membrane comprising the same A novel poly(arylene ether sulfone) having a sulfoalkoxy group, which has both of heat resistance and electroconductivity, is suitable as polymer electrolyte membranes used for high performance polymer electrolyte fuel cells, and does not use fluorine so that loads ... | 01/17/2006 |
| 6962968 | Purification of macrocyclic oligoesters Acid impurities, such as carboxylic acid-terminated polymers, are removed from macrocyclic oligoesters with ion exchange resins, resulting in macrocyclic oligoesters that are substantially free of acid impurities. The ion exchange resins can be regenerated anew and ... | 11/08/2005 |
| 6955865 | Graft polymerization, separators, and batteries including the separators A non-woven sheet of polyolefin fibers having opposed major surfaces is disclosed. Some areas of one or both of the major surfaces are hydrophilic as a consequence of an acrylic graft polymerized with the surfaces of the fibers in those areas while the fibers in oth... | 10/18/2005 |
| 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 |
| 6924317 | Process for producing coarse-particle anion-exchanger gels The present invention relates to a process for producing monodisperse anion-exchanger gels with high stability, purity and coarse particle size greater than 800 μm starting from a monodisperse bead polymer with a swelling index of from 2.5 to 7.5 and more than one ... | 08/02/2005 |
| 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 |
| 6911483 | Ion exchangers The present invention is related to a new quaternary amino (QA) anion exchanger comprising QA derivatized, hydroxy (C2-C4) alkylated and cross-linked regenerated cellulose, in which the level of derivitization with the QA-groups is 1.4 milli-eq... | 06/28/2005 |
| 6875415 | Resin preconditioning methods using carbon dioxide and methods for purifying hydrogen peroxide Provided are a preconditioned resin and methods of preparation thereof as well as methods for purifying hydrogen peroxide solutions. The method includes preconditioning an anion exchange resin, wherein an anion exchange resin bed is provided and carbon dioxide gas i... | 04/05/2005 |
| 6869652 | Porous polymer/carrier solid phase reactants, method for producing same and the use thereof Disclosed are porous polymer/carrier solid phase reactants which consist of a polymer that consists of fine particles and is situated in the pore space of porous carrier materials. Reactive groups are bound to the polymer. Said groups act as reactants in organic-che... | 03/22/2005 |
| 6864314 | Block polymers, compositions and methods of use for foams, laundry detergents, shower rinses and coagulants The present invention relates to a block polymeric material. Typically the block polymer comprises units capable of having an average cationic charge density of about 15 or less, preferably 5 or less, more preferably from about 0.05 to about 5, even more preferably ... | 03/08/2005 |
| 6828353 | Ion-exchange polymers Ion-Exchange polymers for a polymer electrolyte membrane include a moiety of formula (I), and/or a moiety of formula (II), and/or a moiety of formula (III) wherein at least some of the units I, II and/or III are sulphonated. The phenyl moieties in units I, II, and I... | 12/07/2004 |
