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Class Information
Number: 521/134
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
Description: Subject matter involving a cellular product derived from mixed solid polymers or from a solid polymer and at least one polymer-forming system or process of preparing such a cellular product; compositions containing mixed solid polymers or a solid polymer and a polymer-forming system or processes of preparing and which are capable of forming a cellular product; processes of treating a cellular product derived from mixed solid polymers or from a solid polymer and a polymer-forming system with a material which neither reacts with the cellular product to change or modify chemical bonds therein or neither forms a desired composition with the cellular product or products of such a treatment; processes of treating a cellular product derived from mixed solid polymers or from a solid polymer and a polymer-forming system without the addition of a material thereto whereby a physical or chemical change in the cellular product may be effected or products which are the result of such a treatment.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7520559 |
Foams for vehicular energy absorbance |
Apr. 21, 2009 |
| 7511082 |
Polyurethane foam and method of manufacturing the same |
Mar. 31, 2009 |
| 7482389 |
Nanoporous media with lamellar structures |
Jan. 27, 2009 |
| 7439276 |
Froth and durable foam of dispersed olefin polymers, methods of making foam and articles prepared from same |
Oct. 21, 2008 |
| 7439297 |
Foamable fluoropolymers compositions without using foaming agents |
Oct. 21, 2008 |
| 7388036 |
Flexible polyurethane foam, process for its production, and seat for automobile employing it |
Jun. 17, 2008 |
| 7368483 |
Porous composition of matter, and method of making same |
May. 6, 2008 |
| 7361693 |
Low density polymer beads |
Apr. 22, 2008 |
| 7361694 |
Durable foam of olefin polymers, methods of making foam and articles prepared from same |
Apr. 22, 2008 |
| 7326738 |
Composition and process for forming a flexible polyurethane foam sealing device |
Feb. 5, 2008 |
| 7300960 |
Expandable polypropylene resin particle and molded object obtained therefrom by in-mold molding |
Nov. 27, 2007 |
| 7273894 |
Compositions for the preparation of void-containing articles |
Sep. 25, 2007 |
| 7271202 |
Reactive hot melt adhesive |
Sep. 18, 2007 |
| 7262226 |
CTFE-based thermoprocessable compositions |
Aug. 28, 2007 |
| 7259189 |
Expanded polypropylene resin beads and process for the production thereof |
Aug. 21, 2007 |
| 7226956 |
Low density polymeric foam using a three-polymer blend |
Jun. 5, 2007 |
| 7199165 |
Expandable material |
Apr. 3, 2007 |
| 7189764 |
Elastomer composition for cross-linked olefin elastomer foam |
Mar. 13, 2007 |
| 7189763 |
Crosslinked olefin elastomer foam |
Mar. 13, 2007 |
| 7173070 |
Foam cushion and method of making and using the same |
Feb. 6, 2007 |
| 7173069 |
Polyolefin foams and methods of making 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 |
| 7112417 |
Foam composite for the repair or regeneration of tissue |
Sep. 26, 2006 |
| 7109249 |
Composition containing a cross-linkable matrix precursor and a poragen, and porous matrix prepared therefrom |
Sep. 19, 2006 |
| 7030167 |
Nanoporous structures produced from self-assembling molecules |
Apr. 18, 2006 |
| 7005458 |
Static dissipative polyurethane foams |
Feb. 28, 2006 |
| 6995191 |
Multi-layer golf ball with a foamed intermediate layer |
Feb. 7, 2006 |
| 6992115 |
Preparation of crosslinked particles from polymers having activatible crosslinking groups |
Jan. 31, 2006 |
| 6960619 |
Foamable photo-polymerized composition |
Nov. 1, 2005 |
| 6956068 |
Microcellular foam dielectric for use in transmission lines |
Oct. 18, 2005 |
| 6946495 |
Foamable composition using recycled or offgrade polypropylene |
Sep. 20, 2005 |
| 6930132 |
Use of a polypropylene based composition for expanded beads |
Aug. 16, 2005 |
| 6930133 |
Low density polymer beads |
Aug. 16, 2005 |
| 6908668 |
Foamed polyolefin resin sheet |
Jun. 21, 2005 |
| 6908949 |
Foamable interpolymer resin particles containing limonene as a blowing aid |
Jun. 21, 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 |
| 6887912 |
Compatible linear and branched ethylenic polymers and foams therefrom |
May. 3, 2005 |
| 6887910 |
Composition containing a cross-linkable matrix precursor and a poragen, and a porous matrix prepared therefrom |
May. 3, 2005 |
| 6878754 |
Heat-induced gelling foaming composition and foam obtained |
Apr. 12, 2005 |
| 6869980 |
Polymer blend membranes for use in fuel cells |
Mar. 22, 2005 |
| 6855740 |
Foamed molded bodies made from silicon and use of said produced products |
Feb. 15, 2005 |
| 6852763 |
Polyurethane foam compound for ink holder, ink holder, and method for ensuring close contact for ink holder |
Feb. 8, 2005 |
| 6846225 |
Selective chemical-mechanical polishing properties of a cross-linked polymer and specific applications therefor |
Jan. 25, 2005 |
| 6841582 |
Thermoplastic elastomer composition, foam made from the same, and process for producing foam |
Jan. 11, 2005 |
| 6841583 |
Composition and uses thereof |
Jan. 11, 2005 |
| 6818676 |
Foam cushion and method of making and using the same |
Nov. 16, 2004 |
| 6812262 |
Silane-crosslinking expandable polyolefin resin composition and crosslinked foam |
Nov. 2, 2004 |
| 6809125 |
Foam comprising polyolefin blend and method for producing same |
Oct. 26, 2004 |
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