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Class Information
Number: 521/139
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 two or more solid polymers or from at least one solid polymer and at least one polymer-forming system > At least one polymer is derived from an ethylenically unsaturated aromatic reactant or wherein the polymer-forming system contains the same type of reactant
Description: Subject matter wherein at least one of the polymers is derived from an ethylenically unsaturated aromatic reactant.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7439297 |
Foamable fluoropolymers compositions without using foaming agents |
Oct. 21, 2008 |
| 7368483 |
Porous composition of matter, and method of making same |
May. 6, 2008 |
| 7361694 |
Durable foam of olefin polymers, methods of making foam and articles prepared from same |
Apr. 22, 2008 |
| 7358281 |
Hollow polymer particles, aqueous dispersion thereof and production process thereof |
Apr. 15, 2008 |
| 7358282 |
Low-density, open-cell, soft, flexible, thermoplastic, absorbent foam and method of making foam |
Apr. 15, 2008 |
| 7291382 |
Low density flexible resilient absorbent open-cell thermoplastic foam |
Nov. 6, 2007 |
| 7273894 |
Compositions for the preparation of void-containing articles |
Sep. 25, 2007 |
| 7244380 |
Process for producing polystyrene resin foam by extrusion |
Jul. 17, 2007 |
| 7226956 |
Low density polymeric foam using a three-polymer blend |
Jun. 5, 2007 |
| 7222380 |
Tear resistant gels, composites, and cushion articles |
May. 29, 2007 |
| 7179845 |
Elastomeric latex foams |
Feb. 20, 2007 |
| 7173070 |
Foam cushion and method of making and using the same |
Feb. 6, 2007 |
| 7144925 |
Fire resistance acoustic foam |
Dec. 5, 2006 |
| 7115673 |
Photosensitive resin composition, porous resin, circuit board, and wireless suspension board |
Oct. 3, 2006 |
| 7109249 |
Composition containing a cross-linkable matrix precursor and a poragen, and porous matrix prepared therefrom |
Sep. 19, 2006 |
| RE38993 |
Process for producing alkenyl aromatic foams using a combination of atmospheric and organic gases and foams produced thereby |
Feb. 28, 2006 |
| 6992115 |
Preparation of crosslinked particles from polymers having activatible crosslinking groups |
Jan. 31, 2006 |
| 6956068 |
Microcellular foam dielectric for use in transmission lines |
Oct. 18, 2005 |
| 6946495 |
Foamable composition using recycled or offgrade polypropylene |
Sep. 20, 2005 |
| 6908949 |
Foamable interpolymer resin particles containing limonene as a blowing aid |
Jun. 21, 2005 |
| 6903143 |
Process for producing thermo-expansive microcapsules |
Jun. 7, 2005 |
| 6890965 |
Foamed composites and methods for making same |
May. 10, 2005 |
| 6890703 |
Preparation of crosslinked particles from polymers having activatible crosslinking groups |
May. 10, 2005 |
| 6887910 |
Composition containing a cross-linkable matrix precursor and a poragen, and a porous matrix prepared therefrom |
May. 3, 2005 |
| 6841582 |
Thermoplastic elastomer composition, foam made from the same, and process for producing foam |
Jan. 11, 2005 |
| 6812264 |
Foamable polyester resin composition |
Nov. 2, 2004 |
| 6790870 |
Methods of making foamed materials of blended thermoplastic polymers using carbon dioxide |
Sep. 14, 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 |
| 6770682 |
Expandable styrene resin beads and foams produced therefrom |
Aug. 3, 2004 |
| 6770683 |
Foam comprising a blend of ethylene/styrene interpolymer and polyethylene |
Aug. 3, 2004 |
| 6767931 |
Foam compositions from blend of alkenyl aromatic polymers and alpha-olefin/vinyl or vinylidene aromatic interpolymers |
Jul. 27, 2004 |
| 6743846 |
Preparation of flame retardant expandable poly(arylene ether)/polystyrene compositions |
Jun. 1, 2004 |
| 6720363 |
Preparation of a macrocellular acoustic foam |
Apr. 13, 2004 |
| 6710130 |
Propylene polymer composition and its foam moldings |
Mar. 23, 2004 |
| 6664305 |
Chromatography material and a process of manufacturing that material |
Dec. 16, 2003 |
| 6653360 |
Flexible foamed polyethylene |
Nov. 25, 2003 |
| 6653358 |
Composition containing a cross-linkable matrix precursor and a poragen, and a porous matrix prepared therefrom |
Nov. 25, 2003 |
| 6630520 |
Composition containing a cross-linkable matrix precursor and a poragen, and a porous matrix prepared therefrom |
Oct. 7, 2003 |
| 6613811 |
Microcellular thermoplastic elastomeric structures |
Sep. 2, 2003 |
| 6610757 |
Foamable vinyl chloride resin composition |
Aug. 26, 2003 |
| 6605650 |
Process of making lightweight, rigid polyurethane foam |
Aug. 12, 2003 |
| 6602923 |
Process for producing alkenyl aromatic foams having increased thermal insulation using cycloalkane blowing agent and foams produced thereby |
Aug. 5, 2003 |
| 6596784 |
Strengthened thermoplastic for window coverings |
Jul. 22, 2003 |
| 6583189 |
Strengthened thermoplastic |
Jun. 24, 2003 |
| 6583188 |
Grafted thermoplastic compositions and fabricated articles therefrom |
Jun. 24, 2003 |
| 6583205 |
Flame retardant expandable poly(arylene ether)/polystyrene compositions and preparation thereof |
Jun. 24, 2003 |
| 6552095 |
Laminate, method for producing the same and thermoplastic foam adhesive |
Apr. 22, 2003 |
| 6548562 |
Foamed thermo-elastic article |
Apr. 15, 2003 |
| 6541533 |
Extruded polyolefin resin foam |
Apr. 1, 2003 |
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