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Class Information
Number: 528/482
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Treating polymer containing material or treating a solid polymer or a resinifiable intermediate condensation product > Contacting with ion exchange material or solid sorbent
Description: Processes wherein a solid sorbent mass is used to retain on its surface a constituent of a mixture, or wherein an ion-exchange material is used to contact the polymer or polymer-containing material.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6706857 |
Recovery of olefin monomers |
Mar. 16, 2004 |
| 6670444 |
Processes for synthesizing borohydride compounds |
Dec. 30, 2003 |
| 6667031 |
Method for curing cyanoacrylate adhesives |
Dec. 23, 2003 |
| 6646107 |
Process for producing polymer |
Nov. 11, 2003 |
| 6642350 |
Method of purifying bishydroxyalkyl terephthalate |
Nov. 4, 2003 |
| 6630568 |
Method for purification of aromatic polyethers |
Oct. 7, 2003 |
| 6627667 |
Process for preparing a modified polymer |
Sep. 30, 2003 |
| 6610465 |
Process for producing film forming resins for photoresist compositions |
Aug. 26, 2003 |
| 6600005 |
Method for producing poly-(1,4-phenylenazine-N,N-dioxide) by oxidizing p-benzoquinonedoxime |
Jul. 29, 2003 |
| 6593431 |
Purification means |
Jul. 15, 2003 |
| 6590023 |
Method for treating coating formulations |
Jul. 8, 2003 |
| 6590067 |
Modification of polymers with basic N-groups and ion exchange groups in the lateral chain |
Jul. 8, 2003 |
| 6586566 |
Double metal cyanide catalysts for producing polyether polyols |
Jul. 1, 2003 |
| 6541596 |
Crystallizable poly (2,5-di-substituted-1,4-phenylene oxide) and a method of preparing the same |
Apr. 1, 2003 |
| 6521735 |
Production process of polyphenylene ether |
Feb. 18, 2003 |
| 6429285 |
Polymer compositions providing low residue levels and methods of use thereof |
Aug. 6, 2002 |
| 6426382 |
Polycationic polymer salts, their production and use |
Jul. 30, 2002 |
| 6410680 |
Dendrimer constructs and metal complexes thereof having superoxide dismutase activity |
Jun. 25, 2002 |
| 6376578 |
Epihalohydrin-based resins having a reduced halogen content |
Apr. 23, 2002 |
| 6362311 |
Polymerization of poly(glycidyl nitrate) from high purity glycidyl nitrate synthesized from glycerol |
Mar. 26, 2002 |
| 6344582 |
Process for producing a 2-adamantyl (meth>acrylate |
Feb. 5, 2002 |
| 6342580 |
Process for obtaining aminopolyamide-epichlorohydrin resins with a 1,3-dichloro-2-propanol content which is undetectable by ordinary means of vapor-phase chromatography |
Jan. 29, 2002 |
| 6294588 |
Superabsorbing fibers and films and processes for preparing same |
Sep. 25, 2001 |
| 6294245 |
Method for depositing electrically conducting polymer films via electrochemical deposition of precursor polymers |
Sep. 25, 2001 |
| 6277923 |
Cycloolefin-based polymer and process for producing the same |
Aug. 21, 2001 |
| 6252038 |
Method for selectively separating hydrocarbons |
Jun. 26, 2001 |
| 6248798 |
Anion-exchange resins including ion-exchange groups with at least two nitrogen groups, and methods of making and using same |
Jun. 19, 2001 |
| 6248852 |
Germanosiloxane materials and optical components comprising the same |
Jun. 19, 2001 |
| 6223449 |
Apparatus for extracting plasticizer |
May. 1, 2001 |
| 6207795 |
Removal of hydrogenation catalyst from polymer solutions by treatment with ammonia and carbon dioxide |
Mar. 27, 2001 |
| 6207791 |
Low formaldehyde emitting crosslinking agents, process of preparation and curable compositions thereof |
Mar. 27, 2001 |
| 6194541 |
Centrifugal method and apparatus for devolatilizing polymers |
Feb. 27, 2001 |
| 6180754 |
Process for producing cross-linked polyallylamine polymer |
Jan. 30, 2001 |
| 6107441 |
Low formaldehyde emitting crosslinking agents, process of preparation and curable compositions thereof |
Aug. 22, 2000 |
| 6103868 |
Organically-functionalized monodisperse nanocrystals of metals |
Aug. 15, 2000 |
| 6063899 |
Apparatus and method for extracting plasticizer |
May. 16, 2000 |
| 6057420 |
Process for the manufacture of an aqueous solution of polyamide-epichlorohydrin resin having low levels of free epichlorohydrin and related hydrolysis products |
May. 2, 2000 |
| 6037381 |
Preparation of polytetrahydrofuran with terminal hydroxyl groups using ion exchangers |
Mar. 14, 2000 |
| 6027853 |
Process for preparing a radiation-sensitive composition |
Feb. 22, 2000 |
| 5997791 |
Superabsorbing fibers and films and processes for preparing same |
Dec. 7, 1999 |
| 5998491 |
Super-absorbing polymeric networks |
Dec. 7, 1999 |
| RE36406 |
Process for producing cycloolefin random copolymer |
Nov. 23, 1999 |
| 5977294 |
Polymer deformulation by solvent solution filtration |
Nov. 2, 1999 |
| 5962183 |
Metal ion reduction in photoresist compositions by chelating ion exchange resin |
Oct. 5, 1999 |
| 5955570 |
Trace metal ion reduction by Ion Exchange Pack |
Sep. 21, 1999 |
| 5929204 |
Process for removing metals from vinylphenol-type polymers |
Jul. 27, 1999 |
| 5910566 |
Living polymer hydrogenation catalyst and process for hydrogenating polymers with the catalyst |
Jun. 8, 1999 |
| 5891970 |
Water-soluble self-acid-doped polyaniline derivatives and process for preparing the same |
Apr. 6, 1999 |
| 5888400 |
Process for preparing low-salt preparations of condensation products |
Mar. 30, 1999 |
| 5874524 |
Preparation of polymer powders which are redispersible in an aqueous medium |
Feb. 23, 1999 |
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