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| Number | Title | Issue Date |
| 7994228 | Ion-pair charge-transfer complex polymer and photoresponsive-electroresponsive material comprising the same Provided is a novel ion-pair charge-transfer complex polymer suitable for use as a photo-functional material which shows extremely fast photoresponses in the wide wavelength range from visible to near infrared regions, and thermally stable, ... | 08/09/2011 |
| 7947748 | Method for producing polymer beads of uniform size A method for preparing monodisperse crosslinked bead polymers by introducing droplets having a harmonic mean size from 50 to 1500 microns and comprising at least one monomer, at least one crosslinker and a free-radical polymerization initiator into an aqueous medium... | 05/24/2011 |
| 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 |
| 7371326 | Water treatment/remediation system A treatment system passes feed water containing a contaminant such as perchlorate through a bed of strong base anion exchange resin that has been placed in a form (e.g., in sulfate form) to selectively capture the contaminant while passing other ions (e.g., nitrate)... | 05/13/2008 |
| 7316919 | Composite materials comprising supported porous gels This invention relates to a composite material that comprises a support member that has a plurality of pores extending through the support member and, located in the pores of the support member, and filling the pores of the support member, a macroporous cross-linked... | 01/08/2008 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7140239 | System and technique for ultrasonic characterization of settling suspensions A system for determining properties of settling suspensions includes a settling container, a mixer, and devices for ultrasonic interrogation transverse to the settling direction. A computer system controls operation of the mixer and the interrogation devices and rec... | 11/28/2006 |
| 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 |
| 7087654 | Ion exchange and electrochemical methods and devices employing one-step quaternized and polymerized anion selective polymers The invention provides ion exchange and electrochemical methods and devices employing anion exchange polymers produced by substantially simultaneous quaternization and polymerization reactions. Anion selective polymers are produced in accordance with the invention b... | 08/08/2006 |
| 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 |
| 7074736 | Hydrozirconated matrix and process for polyolefin production A hydrozirconated matrix for the production of polyolefins is disclosed. The hydrozirconated matrix is prepared from the reaction of an organozirconium composition and an olefin based material. A process is described for using the hydrozirconated matrix to prepare a... | 07/11/2006 |
| 7070085 | Water soluble protective paste for manufacturing printed circuit boards An improved water soluble protective paste and a method for protecting metal circuits and pads on the surface of an electronic board during the manufacturing steps. A densifier is added to the paste making it easier and more efficient the dispensing of the paste. Af... | 07/04/2006 |
| 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 |
| 7060298 | Implantable particles for the treatment of gastroesophageal reflux disease The invention encompasses the treatment of urinary incontinence, gastroesophageal reflux disease and the amelioration of skin wrinkles using biocompatible hydrophilic cationic microparticles and a cell adhesion promoter. ... | 06/13/2006 |
| 7053129 | Process for preparing monodisperse anion exchangers The present invention relates to a process for preparing novel, monodisperse anion exchangers by (a) reacting monomer droplets made from monovinylaromatic compounds and polyvinylaromatic compounds, and optional porogens and/or initiators, (... | 05/30/2006 |
| 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 |
| 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 |
| 6979480 | Porous inkjet receptor media Improved macroporous ink receptor media are disclosed. An inkjet receptive media in accordance with one embodiment of the present invention comprises a web comprising a plurality of fibers and a coating overlaying at least a portion of a plurality of the fibers. In ... | 12/27/2005 |
| 6977314 | Metal-doped sulfonated ion exchange resin catalysts A method for preparing ketones in greater yield and selectivity compared to previous catalyzed reactions by acid-catalyzed condensation reaction using a metal-doped polysulfonated ion exchange resin catalyst is disclosed. For example, use of polysulfonated ion excha... | 12/20/2005 |
| 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 |
| 6905742 | Polypropylene card construction An image retaining card is disclosed. An image retaining card in accordance with the present invention may be utilized as an identification card, a driver's license, a passport, and the like. An image retaining card in accordance with the present invention comprises... | 06/14/2005 |
| 6821418 | Surface modification of a porous polymer monolith and products therefrom A process is provided for modifying a porous polystyrene monolith to render its internal pore surfaces grafted with alkyl groups, preferably of at least four carbon atoms, which includes the step of alkylating the monolith with a uniform liquid solution containing a... | 11/23/2004 |
| 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 |
| 6756462 | Method for preparation of anion exchange resins An improved process for preparing anion exchange resins based on the use of a non-agitated plug-flow quench procedure followed by recycle of a portion of the recovered chloromethylation reaction fluids into subsequent chloromethylation reactions is disclosed. The co... | 06/29/2004 |
| 6664328 | Functionalized elastomers This invention discloses a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) at least one functionalized monomer having the structural formula: ##STR1## wherein R represents an a... | 12/16/2003 |
| 6492431 | Process of making a composite membrane The present invention relates to methods of fabricating composite membranes wherein at least one of the components is initially provided in the form of a precursor. The composite material comprising the precursor is processed to transform the precursor an... | 12/10/2002 |
| 6420439 | Crosslinked, non-swellable ampholytic base resins Described are non-swelling, crosslinked, bead forms of ampholytic base polymers that can be utilized in the chromatographic-type separation of acids from other compounds. Preferred polymers are prepared by modifying a poly-2 or poly-4-vinylpyridine resin ... | 07/16/2002 |
| 6410672 | Ion exchange and electrochemical methods and devices employing one-step quaternized and polymerized anion selective polymers The invention provides ion exchange and electrochemical methods and devices employing anion exchange polymers produced by substantially simultaneous quaternization and polymerization reactions. Anion selective polymers are produced in accordance with the ... | 06/25/2002 |
| 6323249 | Macroporous resins having large pores but with high crush strength Crosslinked macroporous resins and ion-exchange resins produced therefrom which have a significantly high crush strength to be useful in the removal of colloidal silica, iron, aluminum and other metal hydroxides and a process for producing macroporous res... | 11/27/2001 |
| 6310163 | -olefins and olefin polymers and processes therefor Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal comp... | 10/30/2001 |
| 6235802 | High surface area adsorbents and method of preparation A process for the preparation of high surface area, low-swelling macroporous polymeric adsorbents is disclosed. The use of organic sulfonic acids to provide postcrosslinking of macroporous copolymers eliminates the need for traditional organic swelling so... | 05/22/2001 |
| 6232353 | Bifunctional phenyl monophosphonic/sulfonic acid ion exchange resin and process for using the same A cross-linked water-insoluble ion exchange resin comprised of polymerized monomers having a phenyl ring is disclosed. A contemplated resin contains (i) polymerized phenyl ring-containing monomers having a phosphonic acid ligand linked to the phenyl ring,... | 05/15/2001 |
| 6147127 | High surface area adsorbents and methods of preparation A process for the preparation of high surface area, low-swelling macroporous polymeric adsorbents is disclosed. The use of organic sulfonic acids to provide postcrosslinking of macroporous copolymers eliminates the need for traditional organic swelling so... | 11/14/2000 |
| 6011074 | Ion-exchange polymers having an expanded microstructure Novel organic ion-exchange polymers and membranes formed from these polymers provide improved performance in electrolytic cells. The membranes exhibit an expanded micro-structure as the result of the removal of organic groups previously reacted with the i... | 01/04/2000 |
| 5980776 | Phosphonic acid polymers Phosphonic acid polymers are prepared from di- or polyphosphonic acids having one or more unsaturated C.dbd.C bonds (e.g. vinylidene-1,1-diphosphonic acid), either as homopolymers or as higher polymers with at least one further compound having unsaturated... | 11/09/1999 |
| 5959073 | Method for preparing polymeric beads A method of forming polymer beads comprising forming an aqueous solution comprising a cross-linkable water soluble polymer and a water-soluble crosslinking agent, adding said solution with mixing to a thixotropic oil gel comprising an oil in which said po... | 09/28/1999 |
