| |
 |
|
Class Information
Number: 521/26
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 > Process of regenerating
Description: Subject matter directed to a used ion-exchange polymer which used ion-exchange polymer is subjected to a chemical treatment to effect regenerating to essentially its original ion-exchange polymeric form.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7294654 |
Method of making thermally regenerable salt sorbent resins |
Nov. 13, 2007 |
| 7163964 |
Method for preparing an ion exchange media |
Jan. 16, 2007 |
| 7094469 |
Porous or non-porous substrate coated with an immobilized polymeric composition having sulfonyl groups and hydrophilic functional groups and process |
Aug. 22, 2006 |
| 7071240 |
Carboxylic cationites and methods of manufacture |
Jul. 4, 2006 |
| 7045057 |
Preparation of homogeneously loaded ion exchangers |
May. 16, 2006 |
| 6919382 |
Preparation and uses of conjugated solid supports for boronic acids |
Jul. 19, 2005 |
| 6911481 |
Method of regenerating ion exchange resin |
Jun. 28, 2005 |
| 6875415 |
Resin preconditioning methods using carbon dioxide and methods for purifying hydrogen peroxide |
Apr. 5, 2005 |
| 6693139 |
Treated ion exchange resin and method for treatment thereof |
Feb. 17, 2004 |
| 6624206 |
Process for the preparation of free-flowing strongly acidic cation exchangers |
Sep. 23, 2003 |
| 6593379 |
Method for converting a weakly acid ion exchanger material from the H form into the Ca form |
Jul. 15, 2003 |
| 6508939 |
Mixed bed type sugar solution refining system and regeneration method for such apparatus |
Jan. 21, 2003 |
| 6448299 |
Regeneration of strong-base anion-exchange resins by sequential chemical displacement |
Sep. 10, 2002 |
| 6436294 |
Process for modifying the metal ion sorption capacity of a medium |
Aug. 20, 2002 |
| 6437010 |
Device and method for the regeneration of mixed ion exchange resin beds |
Aug. 20, 2002 |
| 6407143 |
Method and solvent composition for regenerating an ion exchange resin |
Jun. 18, 2002 |
| 6372143 |
Purification of produced water from coal seam natural gas wells using ion exchange and reverse osmosis |
Apr. 16, 2002 |
| 6362240 |
Mixed-bed type sugar solution refining system and regeneration method for such apparatus |
Mar. 26, 2002 |
| 6358421 |
Method for countercurrent regeneration of an ion exchange resin bed |
Mar. 19, 2002 |
| 6340712 |
Non-chloride containing regenerant composition for a strong acid cation exchange resin of a water softener |
Jan. 22, 2002 |
| 6281255 |
Methods for regeneration of weakly basic anion exchange resins with a combination of an alkali metal carbonate and an alkali metal bicarbonate |
Aug. 28, 2001 |
| 6248797 |
Supercritical carbon dioxide extraction of contaminants from ion exchange resins |
Jun. 19, 2001 |
| 6232353 |
Bifunctional phenyl monophosphonic/sulfonic acid ion exchange resin and process for using the same |
May. 15, 2001 |
| 6187826 |
Device and method for the regeneration of mixed ion exchange resin beds |
Feb. 13, 2001 |
| 6177027 |
Iron-complexing compositions containing stannous chloride |
Jan. 23, 2001 |
| 6129836 |
Two-chamber fluid control valve and water softener incorporating same |
Oct. 10, 2000 |
| 6060526 |
Mixed bed ion exchange resin system and method of preparation |
May. 9, 2000 |
| 6037381 |
Preparation of polytetrahydrofuran with terminal hydroxyl groups using ion exchangers |
Mar. 14, 2000 |
| 6017969 |
Ion-exchange resins, their preparation and uses |
Jan. 25, 2000 |
| 6011074 |
Ion-exchange polymers having an expanded microstructure |
Jan. 4, 2000 |
| 5955510 |
Process for the regeneration of ion exchange resins in a fixed double-bed type apparatus |
Sep. 21, 1999 |
| 5951874 |
Method for minimizing wastewater discharge |
Sep. 14, 1999 |
| 5932106 |
Process for regeneration of ion-exchange resins used for sugar decolorization, using chloride salts in a sucrose solution alkalinized with calcium hydroxide |
Aug. 3, 1999 |
| 5902833 |
Mixed bed exchange resin system and method of preparation |
May. 11, 1999 |
| 5830990 |
Low metals perfluorooctanoic acid and top anti-reflective coatings for photoresists |
Nov. 3, 1998 |
| 5759373 |
Porous ion exchanger and method for producing deionized water |
Jun. 2, 1998 |
| 5747546 |
Ion-exchange polymers having an expanded microstructure |
May. 5, 1998 |
| 5718828 |
Method for minimizing wastewater discharge |
Feb. 17, 1998 |
| 5665783 |
Recyclable regenerant for weak acid ion exhange resins |
Sep. 9, 1997 |
| 5624789 |
Metal ion reduction in top anti-reflective coatings for photoresisis |
Apr. 29, 1997 |
| 5601722 |
Method for the preparation of an ion exchanger for cesium ions and method for the regeneration thereof |
Feb. 11, 1997 |
| 5516886 |
Metal ion reduction in top anti-reflective coatings for photoresists |
May. 14, 1996 |
| 5474704 |
Regeneration compositions for cationic exchange resins |
Dec. 12, 1995 |
| 5455282 |
Process of regenerating sulfonic acid cation exchange resins with a mercaptoethylamine or thiazolidine |
Oct. 3, 1995 |
| 5441689 |
Process of making regenerated cellulose articles |
Aug. 15, 1995 |
| 5428074 |
Method for separating ion exchange resins and for removing metallic foulants from the resins |
Jun. 27, 1995 |
| 5428075 |
Method for regenerating a sulfonated aromatic organic polymeric ion-exchange resin bed having deactivated aminoorganomercaptan groups with phenol |
Jun. 27, 1995 |
| 5423965 |
Process and device for demineralizing aqueous solutions using ion exchangers |
Jun. 13, 1995 |
| 5393505 |
Process for increasing the acid gas absorption capacity of contaminated alkanolamine solutions |
Feb. 28, 1995 |
| 5391301 |
Method of regenerating resin beads for use in water purification |
Feb. 21, 1995 |
|
|
|
