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| Number | Title | Issue Date |
| 7683100 | Method of making macroporous cation exchange resins Methods of making macroporous cation exchange resins are described. The macroporous cation exchange resins are in the form of particles such as beads that contain a hydrophilic, crosslinked, (meth)acrylic-type polymeric material. Additionally, methods of purifying a... | 03/23/2010 |
| 7674835 | Method of making macroporous anion exchange resins Methods of making macroporous anion exchange resins are described. The macroporous anion exchange resins are in the form of particles such as beads that contain a hydrophilic, crosslinked, (meth)acrylic-type polymeric material. Additionally, methods of purifying a n... | 03/09/2010 |
| 7674836 | Method of making macroporous cation exchange resins Methods of making macroporous cation exchange resins are described. The macroporous cation exchange resins are in the form of particles such as beads that contain a hydrophilic, crosslinked, (meth)acrylic-type polymeric material. The macroporous cation exchange resi... | 03/09/2010 |
| 7582684 | 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... | 09/01/2009 |
| 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 |
| 7361273 | Separation of sugars, sugar alcohols, carbohydrates and mixtures thereof The present invention relates to a method of separating sugars and sugar alcohols from each other. More particularly the present invention relates to the use of a weakly basic anion exchange resin in a chromatographic separation process. The advantage of the present... | 04/22/2008 |
| 7326737 | Polymer electrolyte membranes crosslinked by direct fluorination A method is provided for making a crosslinked polymer by direct fluorination of a non-perfluorinated polymer comprising first pendent groups which comprise sulfonyl halide groups or by direct fluorination of a polymer mixture of a first polymer which is a non-perflu... | 02/05/2008 |
| 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 |
| 7294654 | Method of making thermally regenerable salt sorbent resins A heterogenous hybrid thermally regenerable salt sorbent resin is formed from a hybrid precursor resin. The hybrid precursor resin is formed by intimately mixing a dry, solid crosslinked macroporous copolymer with a solution containing a polyunsaturated monomer, a m... | 11/13/2007 |
| 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 |
| 7238762 | Weakly acidic cation exchangers The present invention relates to a process for producing weakly acidic cation exchangers of the polymethacrylic acid type by alkaline saponification of a crosslinked copolymer of alkyl methacrylate and methacrylic acid. ... | 07/03/2007 |
| 7192907 | High performance water-based drilling mud and method of use A water based drilling fluid for use in drilling a subterranean well through a subterranean formation that swells in the presence of water, the drilling fluid is formulated to include: an aqueous based continuous phase; a weigh material; a shale encapsulator and an ... | 03/20/2007 |
| 7173067 | Polymer electrolyte membranes crosslinked by direct fluorination A method is provided for making a crosslinked polymer by direct fluorination of a non-perfluorinated polymer comprising first pendent groups which comprise sulfonyl halide groups or by direct fluorination of a polymer mixture of a first polymer which is a non-perflu... | 02/06/2007 |
| 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 |
| 7169307 | Process for the extraction of paclitaxel and 9-dihydro-13-acetylbaccatin III from This invention teaches a purification technology to extract an organic solution of paclitaxel by using a “Load and Lock Axial Compression Column” for industrial scale preparative high performance liquid chromatography. The “Load and Lock Axial Compression Colu... | 01/30/2007 |
| 7166685 | 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... | 01/23/2007 |
| 7166645 | Process for the alkaline saponification of crosslinked acrylonitrile bead polymers The alkaline saponification of acrylonitrile bead polymers provides weakly acidic cation exchangers with little intrinsic color and with reduced residual nitrogen content if the saponification is begun at a temperature T1 of from 70 to 120° C. and, once a de... | 01/23/2007 |
| 7157398 | Covalently fixed nonmetallocenes, process for preparing them and their use for the polymerization of olefins The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use thereof for polymerizing olefins. ... | 01/02/2007 |
| 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 |
| 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 |
| 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 |
| 7071240 | Carboxylic cationites and methods of manufacture A method for preparing synthetic polymerized resins for ion exchange, namely, carboxylic cationites, which are suitable as sorbents for preparative separation and purification of biologically active compounds by low pressure liquid chromatography (LPLC). The directi... | 07/04/2006 |
| 7055566 | Light weight rubber composition containing clay This invention relates to a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said bea... | 06/06/2006 |
| 7045059 | Universal bonded phase material for chromatographic separation The invention provides a new universal bonded phase material used for separation of a wide variety of organic and inorganic substances by liquid chromatography. The material is produced by bonding a charge-bearing hydrophobic functional group to the surface of a sup... | 05/16/2006 |
| 7045562 | Method and structure for self healing cracks in underfill material between an I/C chip and a substrate bonded together with solder balls A method of self-healing cracks in a cured epoxy base underfill material between an I/C chip and a substrate is provided. A plurality of capsules is dispersed in the epoxy base. Each capsule has a curable thermosetting adhesive encapsulated in a rupturable shell to ... | 05/16/2006 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6911065 | Method and system for supplying high purity fluid A fluid purifying apparatus that includes a manifold that includes a first branch and a second branch, a first check valve coupled to the first branch of the manifold, and a purifier unit that includes a first end and a second end, wherein the first end is coupled t... | 06/28/2005 |
| 6902810 | Multilayer systems with at least one layer based on mesonorphic polyelectrolyte complexes method for producing them and their use A multicoat system comprising (I) at least one constituent (IA) comprising mesomorphic polyelectrolyte complexes prepared by reacting, in a liquid phase (IB), at least one polymeric and/or oligomeric, organic, anionic polyelectroly... | 06/07/2005 |
| 6878409 | Method for producing silver salt-containing facilitated transport membrane for olefin separation having improved stability The present invention relates to polymer membranes for separating olefins from paraffins which have the similar molecular size and close boiling point. More particularly, it relates to a silver salt-containing facilitated transport membrane for olefin separation, an... | 04/12/2005 |
| 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 |
| 6844372 | Crosslinked anion-exchange resin or salt thereof and phosphorus adsorbent comprising the same An cross-linked anion exchange resin or a salt thereof obtained by reacting a polymer (A) having amino and/or imino groups in the total number of two or more per molecule with a compound (B) having two or more functional groups capable of reacting with amino and/or ... | 01/18/2005 |
