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Class Information
Number: 521/29
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 > Polymer characterized by defined size or shape other than bead or pearl
Description: Subject matter wherein the ion-exchange polymer is characterized by having a defined size or shape.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7279542 |
Polymeric particles and fragrance delivery systems |
Oct. 9, 2007 |
| 7098253 |
Macroporous ion exchange resins |
Aug. 29, 2006 |
| 7094469 |
Porous or non-porous substrate coated with an immobilized polymeric composition having sulfonyl groups and hydrophilic functional groups and process |
Aug. 22, 2006 |
| 7045057 |
Preparation of homogeneously loaded ion exchangers |
May. 16, 2006 |
| 6992115 |
Preparation of crosslinked particles from polymers having activatible crosslinking groups |
Jan. 31, 2006 |
| 6984669 |
Fluorinated cation exchange membrane and electrolytic soda process |
Jan. 10, 2006 |
| 6930133 |
Low density polymer beads |
Aug. 16, 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 |
| 6881761 |
Porous polymer particle, anion exchanger, producing method thereof, column for ion chromatography, and method for measuring anions |
Apr. 19, 2005 |
| 6815466 |
Coating composition containing ion exchange resins |
Nov. 9, 2004 |
| 6712895 |
Bituminous foam |
Mar. 30, 2004 |
| 6663775 |
Charge mosaic membrane, its production process, method of its use, and apparatus provided with the same |
Dec. 16, 2003 |
| 6534554 |
Multicomponent ion exchange resins |
Mar. 18, 2003 |
| 6521340 |
Sulfur-containing aliphatic polymer for the selective absorption of dissolved metal species |
Feb. 18, 2003 |
| 6306488 |
Composite rigid sponge structure |
Oct. 23, 2001 |
| 6127433 |
Process for producing separation functional fibers and ion-exchange fibers produced therefrom |
Oct. 3, 2000 |
| 6090258 |
Ion-exchange spacer and processes for the preparation thereof |
Jul. 18, 2000 |
| 6060525 |
Removal of borate in chromatography |
May. 9, 2000 |
| 5972718 |
Method of detecting heparin-induced thrombocytopenia |
Oct. 26, 1999 |
| 5856409 |
Method of making hydrophobic copolymers hydrophilic |
Jan. 5, 1999 |
| 5808010 |
Method for derivatization of cellulosic stationary phase |
Sep. 15, 1998 |
| 5783608 |
Process for producing separation functional fibers and ion-exchange fibers produced therefrom |
Jul. 21, 1998 |
| 5770631 |
Production process of connected microgel particles and articles treated with connected microgel particles |
Jun. 23, 1998 |
| 5622997 |
Process for preparing a molded ion exchange resin structure |
Apr. 22, 1997 |
| 5597850 |
Sponge for the absorption of metal ions |
Jan. 28, 1997 |
| 5595652 |
Method and apparatus for in-situ remediation of water containing undesirable ionic species |
Jan. 21, 1997 |
| 5475035 |
Process and apparatus for making a thermoplstic foam structure employing downstream injection of water |
Dec. 12, 1995 |
| 5425866 |
Electrically regenerable demineralizing apparatus |
Jun. 20, 1995 |
| 5346924 |
Heterogeneous ion exchange materials comprising polyethylene of linear low density or high density high molecular weight |
Sep. 13, 1994 |
| 5314922 |
Ion exchange fibers and method for manufacturing the same |
May. 24, 1994 |
| 5308876 |
Materials for removing suspended impurities and use thereof |
May. 3, 1994 |
| 5308467 |
Electrically regenerable demineralizing apparatus |
May. 3, 1994 |
| 5244929 |
Molded bodies comprised of macroporous ion exchange resins, and use of said bodies |
Sep. 14, 1993 |
| 5217505 |
Carbonaceous adsorbents for prevention of carbon bed fires |
Jun. 8, 1993 |
| 5204376 |
Anion Exchanger and a method for treating a fluid |
Apr. 20, 1993 |
| 5182026 |
Resins having improved exchange kinetics |
Jan. 26, 1993 |
| 5169904 |
Method of making hydrophobic copolymers hydrophilic |
Dec. 8, 1992 |
| 5141965 |
Resins having improved exchange kinetics |
Aug. 25, 1992 |
| 5137926 |
High-surface-area compositions |
Aug. 11, 1992 |
| 5112873 |
Resins having improved exchange kinetics |
May. 12, 1992 |
| 5081160 |
Method of preparing uniform size ion exchange resin particles by partial functionalization |
Jan. 14, 1992 |
| 5061741 |
Method for preparing an oil-in-water type uniform dispersion of liquid droplets and polymerization method for preparing polymer beads of uniform particle size |
Oct. 29, 1991 |
| 5037857 |
High-surface-area fiber |
Aug. 6, 1991 |
| 5021201 |
Process for preparing uniform discoid particles |
Jun. 4, 1991 |
| 5013765 |
Method for sulfonating aromatic polyether sulfones |
May. 7, 1991 |
| 4980335 |
Acidic gas adsorber having a metal phthalocyanine on an ion exchanger |
Dec. 25, 1990 |
| 4957992 |
Hair cosmetic composition |
Sep. 18, 1990 |
| 4839331 |
Carbonaceous adsorbents from pyrolyzed polysulfonated polymers |
Jun. 13, 1989 |
| 4781900 |
Process and composition for purifying arsine, phosphine, ammonia, and inert gases to remove Lewis acid and oxidant impurities therefrom |
Nov. 1, 1988 |
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