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Class Information
Number: 521/147
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. > Cellular product derived from ethylenically unsaturated reactants only > From aromatic reactant > With oxygen or nitrogen containing reactant
Description: Subject matter wherein the ethylenically unsaturated aromatic reactant is reacted with at least an oxygen or nitrogen containing ethylenically unsaturated reactant.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7432311 |
Process for creating high internal phase polymeric emulsions |
Oct. 7, 2008 |
| 7273894 |
Compositions for the preparation of void-containing articles |
Sep. 25, 2007 |
| 7226956 |
Low density polymeric foam using a three-polymer blend |
Jun. 5, 2007 |
| 7153890 |
Porous resin bead production method |
Dec. 26, 2006 |
| 7115672 |
Production method of porous resin |
Oct. 3, 2006 |
| 7037997 |
Vinyl monomer, support matrix and its preparation |
May. 2, 2006 |
| 6982309 |
Synthesis of branched styrenic copolymers with p-t-butylstyrene |
Jan. 3, 2006 |
| 6930133 |
Low density polymer beads |
Aug. 16, 2005 |
| 6897247 |
High internal phase polymeric emulsion composition |
May. 24, 2005 |
| 6894082 |
Foamable compositions |
May. 17, 2005 |
| 6841580 |
Organic porous material, process for manufacturing the same, and organic porous ion exchanger |
Jan. 11, 2005 |
| 6822012 |
Peelable polymeric coating composition |
Nov. 23, 2004 |
| 6787580 |
Water-free preparation process for multimodal thermoplastic polymer foam and foam therefrom |
Sep. 7, 2004 |
| 6784216 |
ABS foam and method of making same |
Aug. 31, 2004 |
| 6713522 |
Peelable foam coating composition |
Mar. 30, 2004 |
| 6689465 |
Porous beads and process for producing the same |
Feb. 10, 2004 |
| 6576681 |
Antireflective porogens |
Jun. 10, 2003 |
| 6455606 |
Polyurethane foam, process for producing the same, and foam forming composition |
Sep. 24, 2002 |
| 6420441 |
Porous materials |
Jul. 16, 2002 |
| 6420444 |
Tetrafunctional initiator |
Jul. 16, 2002 |
| 6310112 |
Hydrogenated vinyl aromatic polymer foams |
Oct. 30, 2001 |
| 6274641 |
Tetrafunctional initiator |
Aug. 14, 2001 |
| 6242540 |
Process for the preparation of polymer particles |
Jun. 5, 2001 |
| 6166099 |
Tetrafunctional initiator |
Dec. 26, 2000 |
| 6100306 |
Polymeric microbeads and methods of preparation |
Aug. 8, 2000 |
| 6090862 |
Process for recycling polyolefin cross-linked substance or polyolefin foamed substance |
Jul. 18, 2000 |
| 6087408 |
Process for the production of polyolefin resin foams |
Jul. 11, 2000 |
| 5994423 |
Urine absorber, method for producing it, urine absorbing method utilizing it and portable toilet |
Nov. 30, 1999 |
| 5886061 |
Polymers capable of reversibly complexing acid gases and foamed polymers produced therefrom |
Mar. 23, 1999 |
| 5880240 |
Alkyl-containing porous resin, process for its preparation and its use |
Mar. 9, 1999 |
| 5863957 |
Polymeric microbeads |
Jan. 26, 1999 |
| 5770634 |
Foam materials for insulation, derived from high internal phase emulsions |
Jun. 23, 1998 |
| 5760097 |
Methods of preparing polymeric microbeds |
Jun. 2, 1998 |
| 5731395 |
Functional group-containing porous resin and a process for its preparation |
Mar. 24, 1998 |
| 5726215 |
Styrene resin composition and shaped article thereof |
Mar. 10, 1998 |
| 5712319 |
Resin composition for low expansion moldings |
Jan. 27, 1998 |
| 5708040 |
Method for preparing porous membranes utilizing water or organic vapor adsorption |
Jan. 13, 1998 |
| 5665785 |
Process for forming microcellular structures having an integral skin and products thereof |
Sep. 9, 1997 |
| 5629353 |
Highly cross-linked nanoporous polymers |
May. 13, 1997 |
| 5594035 |
Reclamation of polymers, that contain styrene in the polymeric backbone, using a water soluble solvent based reclamation process |
Jan. 14, 1997 |
| 5563178 |
Expandable styrene polymers of high heat resistance |
Oct. 8, 1996 |
| 5512604 |
Porous copolymers having a cellular polymeric structure suitable for preparing ion-exchange resins and adsorbents |
Apr. 30, 1996 |
| 5494939 |
Porous polymer material and process for production thereof |
Feb. 27, 1996 |
| 5464881 |
Expandable styrene polymers of high heat resistance |
Nov. 7, 1995 |
| 5439946 |
Process for preparing intrinsically foamed thermoplastic polymer |
Aug. 8, 1995 |
| 5389694 |
Foamable styrenic polymer gel having a carbon dioxide blowing agent and a process for making a foam structure therefrom |
Feb. 14, 1995 |
| 5369135 |
Controlled microcellular foams of crystalline amorphous polymers |
Nov. 29, 1994 |
| 5314923 |
Porous polymer beads and process |
May. 24, 1994 |
| 5288767 |
Two-component adhesive composition for the chemical fixing technique |
Feb. 22, 1994 |
| 5258414 |
Adhesives and sealants |
Nov. 2, 1993 |
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