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Class Information
Number: 521/50
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.
Description: Subject matter under Class 520, ... , drawn to cellular products containing at least one solid synthetic polymer or to processes of preparing a cellular product containing at least a solid synthetic polymer.
Sub-classes under this class:
| Class Number |
Class Name |
Patents |
| 521/151 |
Cellular polymer derived from tar, pitch, bitumen, asphalt, or plant material of unknown constitution, e.g., nut shell liquor, etc. |
21 |
| 521/182 |
Cellular product derived from a -c-c(=x)-x containing reactant wherein x is a chalcogen atom, e.g., phthalic acid, etc. |
272 |
| 521/155 |
Cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom |
542 |
| 521/180 |
Cellular product derived from a phenol, phenol ether, or inorganic phenolate reactant |
213 |
| 521/178 |
Cellular product derived from a reactant containing two or more three membered heterocyclic rings wherein two of the ring members are carbon atoms and the remaining ring member is a chalcogen atom |
127 |
| 521/153 |
Cellular product derived from aluminum or heavy metal containing reactant |
20 |
| 521/152 |
Cellular product derived from boron containing reactant |
16 |
| 521/142 |
Cellular product derived from ethylenically unsaturated reactants only |
313 |
| 521/189 |
Cellular product derived from reactant containing a carbon to chalcogen bond |
297 |
| 521/186 |
Cellular product derived from reactant which is an aldehyde or aldehyde derivative |
28 |
| 521/154 |
Cellular product derived from silicon containing reactant |
382 |
| 521/134 |
Cellular product derived from two or more solid polymers or from at least one solid polymer and at least one polymer-forming system |
715 |
| 521/99 |
Cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water |
307 |
| 521/141 |
Cellular vinyl alcohol polymer |
78 |
| 521/50.5 |
Compositions to be polymerized by wave energy in order to prepare a cellular product wherein said composition contains a rate-affecting material; or compositions to be modified by wave energy to prepare a cellular product wherein said composition contains a rate-affecting material; or processes of preparing or treating a solid polymer utilizing wave energy in order to prepare a cellular product |
115 |
| 521/79 |
Extruding a solid polymer containing material to form a cellular product |
730 |
| 521/56 |
Particle which is expandible, process of preparing an expandible particle, or process of expanding a particle to form a cellular product |
623 |
| 521/77 |
Preparing a cellular product by decomposition of a solid polymer; or process of forming a composition containing a solid polymer which decomposes so as to subsequently form a cellular polymer, or composition therefrom |
135 |
| 521/78 |
Preparing a cellular product by spraying a solid polymer containing material |
110 |
| 521/76 |
Preparing a cellular product utilizing a stated ingredient which is surface coated or is a discrete solid particle containing a fluid encapsulated therein, processes of forming an expandible composition, containing said stated ingredient or composition therefrom |
112 |
| 521/65 |
Process of forming a cellular product from an aqueous latex, aqueous dispersion, or aqueous emulsion containing a solid polymer; process of preparing a latex, dispersion, or emulsion containing a solid polymer which is designed to be formed into a cellular product, or composition thereof |
223 |
| 521/82 |
Process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same |
282 |
| 521/61 |
Process of preparing a cellular product by removal of material from a solid polymer-containing matrix without expanding the matrix; composition which is nonexpandible and is designed to form a cellular product by said process; or process of preparing said composition |
266 |
| 521/73 |
Process of preparing a cellular product of a plastisol of a solid polymer derived solely from ethylenically unsaturated monomers; forming a plastisol of a solid polymer derived solely from an ethylenically unsaturated monomer which is designed to be formed into a cellular product, or composition thereof |
65 |
| 521/51 |
Processes of preparing a cellular product having an integral skin |
302 |
| 521/52 |
Reticulated cellular product or processes of preparing a reticulated cellular product |
93 |
| 521/53 |
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 |
230 |
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7439276 |
Froth and durable foam of dispersed olefin polymers, methods of making foam and articles prepared from same |
Oct. 21, 2008 |
| 7390474 |
Porous material and method for manufacturing same, and electrochemical element made using this porous material |
Jun. 24, 2008 |
| 7338980 |
Method and apparatus for mixing a high-viscosity material into a gas |
Mar. 4, 2008 |
| 7323540 |
Process for preparing microrods using liquid-liquid dispersion |
Jan. 29, 2008 |
| 7285576 |
Absorbent polymer compositions, medical articles, and methods |
Oct. 23, 2007 |
| 7279504 |
Expandable vinylaromatic polymers and process for their preparation |
Oct. 9, 2007 |
| 7226955 |
Macrocellular acoustic foam containing particulate additive |
Jun. 5, 2007 |
| 7222380 |
Tear resistant gels, composites, and cushion articles |
May. 29, 2007 |
| 7220821 |
Process for the reduction of the residual monomer content of water-absorbent foam |
May. 22, 2007 |
| 7214724 |
Method for cross-linking a foamable plastic |
May. 8, 2007 |
| 7202385 |
Process for the alkoxylation of monools in the presence of metallo-organic framework materials |
Apr. 10, 2007 |
| 7182897 |
Method of storing material into which gas saturates |
Feb. 27, 2007 |
| 7153566 |
Porous film and process for producing the same |
Dec. 26, 2006 |
| 7153448 |
1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone compositions comprising a hydrofluorocarbon and uses thereof |
Dec. 26, 2006 |
| 7147311 |
Fluid supply media |
Dec. 12, 2006 |
| 7148263 |
Hybrid inorganic/organic low k dielectric films with improved mechanical strength |
Dec. 12, 2006 |
| 7141612 |
Stabilized foams including surface-modified organic molecules |
Nov. 28, 2006 |
| 7112417 |
Foam composite for the repair or regeneration of tissue |
Sep. 26, 2006 |
| 7094356 |
1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone refrigerant compositions and uses thereof |
Aug. 22, 2006 |
| 7091253 |
Water-absorbent resin, hydropolymer, process for producing them, and uses of them |
Aug. 15, 2006 |
| 7074343 |
1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone refrigerant compositions comprising a hydrocarbon and uses thereof |
Jul. 11, 2006 |
| 7060736 |
Blowing agent solubility in polymers |
Jun. 13, 2006 |
| 6949588 |
Perforated foams |
Sep. 27, 2005 |
| 6946496 |
Artificial soil |
Sep. 20, 2005 |
| 6933334 |
Silicone-cork ablative material |
Aug. 23, 2005 |
| 6911522 |
Filled epsilon-caprolactone based polymer compositions, method for preparing same and articles based on said compositions |
Jun. 28, 2005 |
| 6896823 |
Pentafluoropropane-based compositions |
May. 24, 2005 |
| 6855744 |
Gelcasting polymeric precursors for producing net-shaped graphites |
Feb. 15, 2005 |
| 6803495 |
Polyurethane foam composition and method of manufacture thereof |
Oct. 12, 2004 |
| 6797051 |
More controllable fibrous patch spray |
Sep. 28, 2004 |
| 6790820 |
Compositions of hydrofluorocarbons and trans-1,2-dichloroethylene |
Sep. 14, 2004 |
| 6777382 |
Compositions of hydrofluorocarbons and methanol |
Aug. 17, 2004 |
| 6759080 |
Process for making foams by photopolymerization of emulsions |
Jul. 6, 2004 |
| 6756428 |
Degradable plastics possessing a microbe-inhibiting quality |
Jun. 29, 2004 |
| 6739344 |
Biodegradable cellulose acetate structure and tobacco filter |
May. 25, 2004 |
| 6719923 |
Paste, which can undergo screen printing for producing a porous polymer membrane for a biosensor |
Apr. 13, 2004 |
| 6670404 |
Polymeric foam powder processing techniques, foam powders products, and foams produced containing those foam powders |
Dec. 30, 2003 |
| 6649664 |
Process for producing reclaimed expandable polystyrene resin particle |
Nov. 18, 2003 |
| 6635684 |
Method for preparing hydrophilic porous polymeric materials |
Oct. 21, 2003 |
| 6599951 |
Antireflective porogens |
Jul. 29, 2003 |
| 6593380 |
Uniform small cell foams and a continuous process for making same |
Jul. 15, 2003 |
| 6579473 |
Ethylene propylene rubber foam and image formation equipment |
Jun. 17, 2003 |
| 6573305 |
Foams made by photopolymerization of emulsions |
Jun. 3, 2003 |
| 6531520 |
Polymer blend |
Mar. 11, 2003 |
| 6521672 |
Open-cell particulate foams |
Feb. 18, 2003 |
| 6518381 |
Tetrafluoroethylene polymer for stretching |
Feb. 11, 2003 |
| 6518323 |
Polymer compound, the production and use thereof, and sintered compacts produced therefrom |
Feb. 11, 2003 |
| 6451348 |
Method of manufacturing porous matrix-type controlled release systems using emulsion technique |
Sep. 17, 2002 |
| 6447859 |
Polyester resin and molded article |
Sep. 10, 2002 |
| 6403550 |
Compositions based on 142 |
Jun. 11, 2002 |
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