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| Number | Title | Issue Date |
| 7252767 | Hydrous zirconium oxide, hydrous hafnium oxide and method of making same The present invention features a method of making hydrous zirconium oxide having desirable properties, including resistance to moisture content, predetermined particle size, and developed porosity and surface area. The inventive material is suitable for use as an io... | 08/07/2007 |
| 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 |
| 6613809 | Metal-doped organic gels and method thereof Disclosed herein is a sol-gel polymerization process for synthesizing metal-doped organic gels. The process polymerizes metal salts of hydroxylated benzenes or hydroxylated benzene derivatives with alkyl or aryl aldehydes to form metal-doped, wet, organic... | 09/02/2003 |
| 6344492 | Metal complexes immobilized organic in porous organic hosts Polymer-metal ion composites and methods are provided for reversibly binding target compounds using such composites. Broadly, the composites comprise an amorphous polymer matrix having a plurality of channels with metal ion-ligand complexes immobilized th... | 02/05/2002 |
| 5441991 | Cesium-specific phenolic ion exchange resin A phenolic, cesium-specific, cation exchange resin is prepared by neutralizing resorcinol with potassium hydroxide, condensing/polymerizing the resulting intermediate with formaldehyde, heat-curing the resulting polymer to effect cross-linking and grindin... | 08/15/1995 |
| 5141966 | Metalchelating, hydrophilic polymer The invention concerns a polymer product for immobilizing of metal ions, adsorption, and the like, with the structure P--X--A--Q wherein P is a hydrophilic polymer with a molecular weight of more than 3 000 Daltons. X is a heteroatom, O, S or N, A is an atom s... | 08/25/1992 |
| 4956393 | Structures exhibiting improved transmission of ultrahigh frequency electromagnetic radiation and structural materials which allow their construction Radomes having increased transparency and reduced reflectivity and refractivity to radar waves may be prepared or repaired utilizing heat-curable resin-containing structural materials in which the heat-curable resin contains greater than about 70 weight p... | 09/11/1990 |
| 4576969 | Spherical ion exchange resin having matrix-bound metal hydroxide, method for producing the same and method for adsorption treatment using the same A spherical ion exchange resin composed of a phenolic resin and a metal hydroxide is disclosed. The metal hydroxide is enclosed and bound with the phenolic resin. A method for producing such an ion exchange resin and a method for selectively adsorbing ion... | 03/18/1986 |
| 4567207 | Polymeric material adapted for physico-chemical separation of substances and method for producing same A polymeric material comprising a solid dispersion of a porous three-dimensional polymer with a pore diameter of 0.002 to 10 μm and a permeability coefficient of from 2×10-7 to 2×1031 2 cm.multidot.sec-1. This material ... | 01/28/1986 |
| 4424284 | Cationic adsorption agent A cationic adsorption agent which is obtained by reaction of (a) an amino compound which contains at least one amino group and at least one free or methylolated carbamide or thiocarbamide group, or a salt thereof, with (b) an aminoplast precondensate which doe... | 01/03/1984 |
| 4423159 | Phenolic cation exchange resin material for recovery of cesium and strontium A phenolic cation exchange resin with a chelating group has been prepared by reacting resorcinol with iminodiacetic acid in the presence of formaldehyde at a molar ratio of about 1:1:6. The material is highly selective for the simultaneous recovery of bot... | 12/27/1983 |
| 4284512 | Iron selective resins prepared from a phenol, HCHO and a di-secondary amine Ferric ions may be removed very selectively from aqueous solutions by means of a metal-chelating resin consisting of the acid-quaternized form of a cross-linked polymer produced by the condensation of a phenolic component comprising one or more phenols, f... | 08/18/1981 |
| 4239854 | Enzyme-immobilization carriers and preparation thereof Enzyme-immobilization carriers which comprise a macroporous amphoteric ion-exchange resin having a cation-exchange capacity due to carboxymethyl groups of 0.5 meq/g-dry resin or more, an anion-exchange capacity of 1 meq/g-dry resin or more, and a specific... | 12/16/1980 |
| 4169934 | Copolymers of keto dicarboxylates Copolymers of keto dicarboxylates are provided which have the following general formula ##STR1## WHERE Y is one or more comonomers; n averages at least 2; p is at least 1; and M is selected from the group consisting of alkali metal, ammonium, al... | 10/02/1979 |
| 4111856 | Insoluble resin-metal compound complex prepared by contacting weak base ion exchange resin with solution of metal-ligand This specification discloses an insoluble resin-metal compound complex, the method for its preparation, and its use in carrying out a catalyzed reaction. The complex is a weak base anion exchange resin which has been contacted with a solution of a coordin... | 09/05/1978 |
