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Class Information
Number: 521/53
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. > Treating a cellular solid polymer by adding a material thereto which reacts with the polymer or forms a composition therewith, or products of said treating process
Description: Subject matter wherein a previously formed solid cellular polymer is treated with a material so as to form a desired composition therewith or so as to chemically modify the cellular product by a change in chemical bonds therein.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7378453 |
Surface crosslinking treatment method of water-absorbing resin powder |
May. 27, 2008 |
| 7294654 |
Method of making thermally regenerable salt sorbent resins |
Nov. 13, 2007 |
| 7294655 |
Coating composition for thermoplastic resin particles for forming foam containers |
Nov. 13, 2007 |
| 7291653 |
Preparation of hydrophobic organic aeorgels |
Nov. 6, 2007 |
| 7232210 |
Foam, method of forming the foam, print cartridge including the foam, and printing apparatus including the print cartridge |
Jun. 19, 2007 |
| 7214724 |
Method for cross-linking a foamable plastic |
May. 8, 2007 |
| 7148264 |
Method of producing macroporous cross-linked polymer particles |
Dec. 12, 2006 |
| 7030167 |
Nanoporous structures produced from self-assembling molecules |
Apr. 18, 2006 |
| 6946496 |
Artificial soil |
Sep. 20, 2005 |
| 6900282 |
Derivatized polyurethane compositions which exhibit enhanced stability in biological systems and methods of making the same |
May. 31, 2005 |
| 6881761 |
Porous polymer particle, anion exchanger, producing method thereof, column for ion chromatography, and method for measuring anions |
Apr. 19, 2005 |
| 6811980 |
Process for immobilization of nucleic acid molecules on a substrate |
Nov. 2, 2004 |
| 6713520 |
Foams and methods for making the same |
Mar. 30, 2004 |
| 6710130 |
Propylene polymer composition and its foam moldings |
Mar. 23, 2004 |
| 6692857 |
Process for the production of a composite membrane |
Feb. 17, 2004 |
| 6689861 |
Derivatized polyurethane compositions which exhibit enhanced stability in biological systems and methods of making the same |
Feb. 10, 2004 |
| 6670405 |
Method for producing block-shaped polymethacrylimide foamed materials |
Dec. 30, 2003 |
| 6642282 |
Porous para-oriented aromatic polyamide film, prepreg thereof, and base substrate for printed circuit board |
Nov. 4, 2003 |
| 6569911 |
Manufacturing method and article produced by the method |
May. 27, 2003 |
| 6541527 |
Process for preparing post-crosslinked polymer bead whose surface area and pore volume are increased |
Apr. 1, 2003 |
| 6495209 |
Process of making a composite membrane |
Dec. 17, 2002 |
| 6492431 |
Process of making a composite membrane |
Dec. 10, 2002 |
| 6462100 |
Foams containing functionalized metal oxide nanoparticles and methods of making same |
Oct. 8, 2002 |
| 6403664 |
Combination of metal salts of ricinoleic acid with reactive amines in producing polyurethane forms |
Jun. 11, 2002 |
| 6376565 |
Implements comprising highly durable foam materials derived from high internal phase emulsions |
Apr. 23, 2002 |
| 6320011 |
Derivatized polyurethane compositions which exhibit enhanced stability in biological systems and methods of making the same |
Nov. 20, 2001 |
| 6315956 |
Electrochemical sensors made from conductive polymer composite materials and methods of making same |
Nov. 13, 2001 |
| 6303702 |
Method of producing material for purification of physiological liquids of organism |
Oct. 16, 2001 |
| 6288132 |
Organic gels |
Sep. 11, 2001 |
| 6265463 |
Degradation of expandable polymer bead products |
Jul. 24, 2001 |
| 6235802 |
High surface area adsorbents and method of preparation |
May. 22, 2001 |
| 6221926 |
Expandable polystyrene resin beads, process for the preparation of them, and foam made by using the same |
Apr. 24, 2001 |
| 6221925 |
Foamable high density polyethylene |
Apr. 24, 2001 |
| 6203850 |
Plasma-annealed porous polymers |
Mar. 20, 2001 |
| 6194475 |
Use of metal salts of ricinoleic acid in producing polyurethane |
Feb. 27, 2001 |
| 6171708 |
Sulfur containing atomic group introduced porous article |
Jan. 9, 2001 |
| 6156235 |
Conductive elastomeric foams by in-situ vapor phase polymerization of pyrroles |
Dec. 5, 2000 |
| 6147127 |
High surface area adsorbents and methods of preparation |
Nov. 14, 2000 |
| 6100305 |
Method of production of water-absorbing resin |
Aug. 8, 2000 |
| 6022902 |
Porous article with surface functionality and method for preparing same |
Feb. 8, 2000 |
| 6013685 |
Process for recycling packings |
Jan. 11, 2000 |
| 6005012 |
Method for producing hydrophobic aerogels |
Dec. 21, 1999 |
| 5981070 |
Water-absorbent agent powders and manufacturing method of the same |
Nov. 9, 1999 |
| 5916926 |
Foamed high density polyethylene |
Jun. 29, 1999 |
| 5883146 |
Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture |
Mar. 16, 1999 |
| 5880166 |
Expandable styrene polymers |
Mar. 9, 1999 |
| 5866623 |
Method for immobilizing particulate materials in a packed bed |
Feb. 2, 1999 |
| 5837741 |
Composite microporous carbons for fuel gas storage |
Nov. 17, 1998 |
| 5817703 |
Rebond foam and process for production thereof |
Oct. 6, 1998 |
| 5801207 |
Biodegradable foamed articles and process for the preparation thereof |
Sep. 1, 1998 |
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