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Class Information
Number: 521/146
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
Description: Subject matter wherein an ethylenically unsaturated aromatic material is a reactant.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7456227 |
Polymer particles and related articles |
Nov. 25, 2008 |
| 7425583 |
Ion exchanger |
Sep. 16, 2008 |
| 7358280 |
Process for processing expandable polymer particles and foam article thereof |
Apr. 15, 2008 |
| 7358282 |
Low-density, open-cell, soft, flexible, thermoplastic, absorbent foam and method of making foam |
Apr. 15, 2008 |
| 7312253 |
Insulating thermoplastic foams made with methyl formate-based blowing agents |
Dec. 25, 2007 |
| 7307105 |
Thermoplastic foams made with methyl formate-based blowing agents |
Dec. 11, 2007 |
| 7294655 |
Coating composition for thermoplastic resin particles for forming foam containers |
Nov. 13, 2007 |
| 7291382 |
Low density flexible resilient absorbent open-cell thermoplastic foam |
Nov. 6, 2007 |
| 7279504 |
Expandable vinylaromatic polymers and process for their preparation |
Oct. 9, 2007 |
| 7273894 |
Compositions for the preparation of void-containing articles |
Sep. 25, 2007 |
| 7259190 |
Adhesive composition |
Aug. 21, 2007 |
| 7232849 |
Low void space resins and method of preparation |
Jun. 19, 2007 |
| 7176247 |
Interpenetrating polymer network |
Feb. 13, 2007 |
| 7173066 |
Ion exchanger |
Feb. 6, 2007 |
| 7166646 |
Asphalt-filled polymer foams |
Jan. 23, 2007 |
| 7153890 |
Porous resin bead production method |
Dec. 26, 2006 |
| 7132485 |
Dosing of peroxide to a suspension process wherein styrene is polymerized |
Nov. 7, 2006 |
| 7122582 |
Production method of porous spherical particles of vinyl polymer |
Oct. 17, 2006 |
| 7078441 |
Organic porous material, process for manufacturing the same, and organic porous ion exchanger |
Jul. 18, 2006 |
| 7037997 |
Vinyl monomer, support matrix and its preparation |
May. 2, 2006 |
| 7026364 |
Ion exchanger |
Apr. 11, 2006 |
| 7005457 |
Multi-functional microencapsulated additives for polymeric compositions |
Feb. 28, 2006 |
| 6982309 |
Synthesis of branched styrenic copolymers with p-t-butylstyrene |
Jan. 3, 2006 |
| 6972311 |
Optimizing polystyrene in the presence of additives |
Dec. 6, 2005 |
| 6960617 |
Hydrogels having enhanced elasticity and mechanical strength properties |
Nov. 1, 2005 |
| 6908950 |
Asphalt filled polymer foam |
Jun. 21, 2005 |
| 6841580 |
Organic porous material, process for manufacturing the same, and organic porous ion exchanger |
Jan. 11, 2005 |
| 6831111 |
Method and products to absorb oil and organic solvents from water and from sea |
Dec. 14, 2004 |
| 6822012 |
Peelable polymeric coating composition |
Nov. 23, 2004 |
| 6811980 |
Process for immobilization of nucleic acid molecules on a substrate |
Nov. 2, 2004 |
| 6787580 |
Water-free preparation process for multimodal thermoplastic polymer foam and foam therefrom |
Sep. 7, 2004 |
| 6765031 |
Micropore open cell foam composite and method for manufacturing same |
Jul. 20, 2004 |
| 6762212 |
Extruded styrene resin foams and methods for producing the same |
Jul. 13, 2004 |
| 6713522 |
Peelable foam coating composition |
Mar. 30, 2004 |
| 6642284 |
Flame-retardant coating |
Nov. 4, 2003 |
| 6624208 |
Blowing agent based on HFC-134a and cyclopentane for the expansion of polymers |
Sep. 23, 2003 |
| 6610755 |
Apparatus and process for making a corrugation-free foam |
Aug. 26, 2003 |
| 6608150 |
Preparation of expandable styrene polymers |
Aug. 19, 2003 |
| 6602923 |
Process for producing alkenyl aromatic foams having increased thermal insulation using cycloalkane blowing agent and foams produced thereby |
Aug. 5, 2003 |
| 6582811 |
Method of and material for purification of physical liquids of organism, and method of producing the material |
Jun. 24, 2003 |
| 6579910 |
Methods for manufacturing foam material including systems with pressure restriction element |
Jun. 17, 2003 |
| 6576681 |
Antireflective porogens |
Jun. 10, 2003 |
| 6573305 |
Foams made by photopolymerization of emulsions |
Jun. 3, 2003 |
| 6569911 |
Manufacturing method and article produced by the method |
May. 27, 2003 |
| 6569912 |
Extruded styrene resin foam and process for producing the same |
May. 27, 2003 |
| 6555638 |
Production of water-expandable styrene polymers |
Apr. 29, 2003 |
| 6544450 |
Process for producing thermoformable foam sheet using a physical blowing agent |
Apr. 8, 2003 |
| 6545062 |
Production of water-expandable styrene polymers |
Apr. 8, 2003 |
| 6541527 |
Process for preparing post-crosslinked polymer bead whose surface area and pore volume are increased |
Apr. 1, 2003 |
| 6472490 |
Ethylene-aromatic vinyl compound copolymer and method for its production |
Oct. 29, 2002 |
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