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Class Information
Number: 521/28
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Ion-exchange polymer or process of preparing > Previously formed solid ion-exchange polymer admixed with nonreactive material or ion-exchange polymer
Description: Subject matter wherein a previously formed solid ion-exchange polymer is admixed with (1) a different ion-exchange polymer, or (2) with a material which is inert towards the ion-exchange polymer and wherein there is an intent to form a desirous composition therewith.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7455934 |
Fluorocopolymer material with sulfonic acid functional groups as a solid polyelectrolyte for use in fuel cells |
Nov. 25, 2008 |
| 7307138 |
Polymer electrolytes and process for their preparation |
Dec. 11, 2007 |
| 7307127 |
Highly sulfonated block copolymer hydrogels and uses thereof |
Dec. 11, 2007 |
| 7279244 |
Fuel cell, polyelectrolyte and ion-exchange resin use for same |
Oct. 9, 2007 |
| 7195835 |
Proton conducting membrane for fuel cells |
Mar. 27, 2007 |
| 7166685 |
Compositions containing particles of highly fluorinated ion exchange polymer |
Jan. 23, 2007 |
| 7163964 |
Method for preparing an ion exchange media |
Jan. 16, 2007 |
| 7160926 |
Ion exchange fluorocarbon resin membrane |
Jan. 9, 2007 |
| 7052793 |
Composite solid polymer electrolyte membranes |
May. 30, 2006 |
| 7045057 |
Preparation of homogeneously loaded ion exchangers |
May. 16, 2006 |
| 7022743 |
Fuel cell, polyelectrolyte and ion-exchange resin used for same |
Apr. 4, 2006 |
| 7022744 |
Ion exchanger for lipoproteins separation and lipoproteins separation method using the same |
Apr. 4, 2006 |
| 6977122 |
Proton conducting membrane for fuel cells |
Dec. 20, 2005 |
| 6962968 |
Purification of macrocyclic oligoesters |
Nov. 8, 2005 |
| 6933357 |
Ultra-clean fluoropolymers |
Aug. 23, 2005 |
| 6924318 |
Method for making a bipolar membrane and use of resulting bipolar membrane |
Aug. 2, 2005 |
| 6919382 |
Preparation and uses of conjugated solid supports for boronic acids |
Jul. 19, 2005 |
| 6916853 |
Compositions containing particles of highly fluorinated ion exchange polymer |
Jul. 12, 2005 |
| 6911482 |
Ion exchange fluorocarbon resin precursor composition |
Jun. 28, 2005 |
| 6875415 |
Resin preconditioning methods using carbon dioxide and methods for purifying hydrogen peroxide |
Apr. 5, 2005 |
| 6869980 |
Polymer blend membranes for use in fuel cells |
Mar. 22, 2005 |
| 6855747 |
Method of producing ion sensitive film for ion sensor |
Feb. 15, 2005 |
| 6759441 |
Acid-base polymer blends and their use in membrane processes |
Jul. 6, 2004 |
| 6733914 |
Fuel cell membranes |
May. 11, 2004 |
| 6723757 |
Engineering ionomeric blends and engineering ionomeric blend membranes |
Apr. 20, 2004 |
| 6720360 |
Ultra-clean fluoropolymers |
Apr. 13, 2004 |
| 6710093 |
Immobilized ion exchange materials and processes for making the same |
Mar. 23, 2004 |
| 6693139 |
Treated ion exchange resin and method for treatment thereof |
Feb. 17, 2004 |
| 6632848 |
Heterogeneous anion exchanger |
Oct. 14, 2003 |
| 6624206 |
Process for the preparation of free-flowing strongly acidic cation exchangers |
Sep. 23, 2003 |
| 6576100 |
Fluorinated ionomers |
Jun. 10, 2003 |
| 6558552 |
Composite material based on hexacyanoferrates and polymer, method for making it and use |
May. 6, 2003 |
| 6552093 |
Compositions containing particles of highly fluorinated ion exchange polymer |
Apr. 22, 2003 |
| 6534554 |
Multicomponent ion exchange resins |
Mar. 18, 2003 |
| 6495014 |
Electrodeionization substrate, and device for electrodeionization treatment |
Dec. 17, 2002 |
| 6492431 |
Process of making a composite membrane |
Dec. 10, 2002 |
| 6484887 |
Ion-selective membranes, their production process, use of the ion-selective membranes, and apparatuses provided with the ion-selective membranes |
Nov. 26, 2002 |
| 6486222 |
Combination ion exchange resin bed for the synthesis of bisphenol A |
Nov. 26, 2002 |
| 6448299 |
Regeneration of strong-base anion-exchange resins by sequential chemical displacement |
Sep. 10, 2002 |
| 6437011 |
.alpha.,.beta., .beta.-trifluorostyrene-based composite membranes |
Aug. 20, 2002 |
| 6432314 |
Anion exchange materials and processes |
Aug. 13, 2002 |
| 6407143 |
Method and solvent composition for regenerating an ion exchange resin |
Jun. 18, 2002 |
| 6384092 |
Process for the preparation of free-flowing strongly acidic cation exchangers |
May. 7, 2002 |
| 6340714 |
Chloride-sensitive electrode membrane |
Jan. 22, 2002 |
| 6333109 |
Water-swellable crosslinked polymer composition and production |
Dec. 25, 2001 |
| 6323249 |
Macroporous resins having large pores but with high crush strength |
Nov. 27, 2001 |
| 6312679 |
Dense star polymer conjugates as dyes |
Nov. 6, 2001 |
| 6306488 |
Composite rigid sponge structure |
Oct. 23, 2001 |
| 6300381 |
Acid-base polymer blends and their application in membrane processes |
Oct. 9, 2001 |
| 6281400 |
Process for preparation of a catalytic microcomposite from a silicate and a highly fluorinated ion exchange resin |
Aug. 28, 2001 |
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