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Class Information
Number: 521/63
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. > 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 > Cellular product-forming process wherein the removable material is present or is produced in situ during the solid polymer formation step
Description: Subject matter wherein the material removed to form the cellular structure is present during the solid polymer formation or is formed during the polymer-forming process.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7456228 |
Durable foam of olefin polymers, methods of making foam and articles prepared from same |
Nov. 25, 2008 |
| 7442754 |
Molecular imprinting of small particles, and production of small particles from solid state reactants |
Oct. 28, 2008 |
| 7432311 |
Process for creating high internal phase polymeric emulsions |
Oct. 7, 2008 |
| 7393878 |
Method for curing high internal phase emulsions |
Jul. 1, 2008 |
| 7319114 |
Hollow polymer particles, method for preparing hollow polymer particles, porous ceramic filter, and method for preparing porous ceramic filter |
Jan. 15, 2008 |
| 7285578 |
Water-in-oil emulsion composition for forming silicone elastomer porous material |
Oct. 23, 2007 |
| 7268169 |
Silicone elastomer porous body |
Sep. 11, 2007 |
| 7167354 |
Mesoporous carbons and polymers from hydroxylated benzenes |
Jan. 23, 2007 |
| 7166362 |
Film-forming composition, production process therefor, and porous insulating film |
Jan. 23, 2007 |
| 7148264 |
Method of producing macroporous cross-linked polymer particles |
Dec. 12, 2006 |
| 7087656 |
High temperature SiCN and SiC-type nanostructured ceramic material from block copolymer mesophases |
Aug. 8, 2006 |
| 7081272 |
Coating composition for forming low-refractive index thin layers |
Jul. 25, 2006 |
| 7078441 |
Organic porous material, process for manufacturing the same, and organic porous ion exchanger |
Jul. 18, 2006 |
| 7056455 |
Process for the preparation of nanostructured materials |
Jun. 6, 2006 |
| 7052608 |
Cast-to-shape electrokinetic trapping medium |
May. 30, 2006 |
| 7022745 |
Process for forming solid pressure sensitive adhesive polymer microspheres |
Apr. 4, 2006 |
| 7019040 |
Process for the preparation of porous polymer particles based on acrylate and/or methacrylate |
Mar. 28, 2006 |
| 6991678 |
Process for preparing microporous crystalline titanium silicate |
Jan. 31, 2006 |
| 6897247 |
High internal phase polymeric emulsion composition |
May. 24, 2005 |
| 6841580 |
Organic porous material, process for manufacturing the same, and organic porous ion exchanger |
Jan. 11, 2005 |
| 6797738 |
Open pore biodegradable matrices |
Sep. 28, 2004 |
| 6777454 |
Vesiculated polyester granules |
Aug. 17, 2004 |
| 6770201 |
Cast-to-shape electrokinetic trapping medium |
Aug. 3, 2004 |
| 6759080 |
Process for making foams by photopolymerization of emulsions |
Jul. 6, 2004 |
| 6649665 |
Method for production of porous cross-linked polymer material |
Nov. 18, 2003 |
| 6630519 |
Process for producing porous polymer |
Oct. 7, 2003 |
| 6562449 |
Nanoporous low dielectric constant polymers with hollow polymer particles |
May. 13, 2003 |
| 6525106 |
Method for continuous curing of hipe into hipe foams |
Feb. 25, 2003 |
| 6472443 |
Porous polymer media |
Oct. 29, 2002 |
| 6465532 |
Co-continuous interconnecting channel morphology polymer having controlled gas transmission rate through the polymer |
Oct. 15, 2002 |
| 6455600 |
Water-absorbing, cross-linked polymerizates in the form of a foam, a method for the production thereof, and their use |
Sep. 24, 2002 |
| 6444716 |
Foam materials and high internal phase emulsions made using oxidatively stable emulsifiers |
Sep. 3, 2002 |
| 6426372 |
Method of producing porous calcined polyimide |
Jul. 30, 2002 |
| 6395792 |
Method for production of porous cross-linked poymer |
May. 28, 2002 |
| 6391932 |
Porous materials |
May. 21, 2002 |
| 6372808 |
Process for producing porous polyimide and porous polyimide |
Apr. 16, 2002 |
| 6369121 |
Apparatus and process for in-line preparation of HIPEs |
Apr. 9, 2002 |
| 6365642 |
Rapid preparation of foam materials from high internal phase emulsions |
Apr. 2, 2002 |
| 6355730 |
Permselective membranes and methods for their production |
Mar. 12, 2002 |
| 6323252 |
Superabsorbent polymers having improved processability |
Nov. 27, 2001 |
| 6297293 |
Mesoporous carbons and polymers |
Oct. 2, 2001 |
| 6296932 |
Microsphere adhesive coated article for use with coated papers |
Oct. 2, 2001 |
| 6281256 |
Open pore biodegradable matrices |
Aug. 28, 2001 |
| 6231960 |
Biodegradable and/or compostable polymers made from conjugated dienes such as isoprene and 2,3-dimethyl-1,3-butadiene |
May. 15, 2001 |
| 6231926 |
Poromeric synthetic leathers |
May. 15, 2001 |
| 6207724 |
Foam materials and high internal phase emulsions made using oxidatively stable emulsifiers |
Mar. 27, 2001 |
| RE37021 |
Water-absorbing resin and process for producing same |
Jan. 16, 2001 |
| 6160030 |
High water content porous polymer |
Dec. 12, 2000 |
| 6160028 |
Flame retardant microporous polymeric foams |
Dec. 12, 2000 |
| 6147131 |
High internal phase emulsions (HIPEs) and foams made therefrom |
Nov. 14, 2000 |
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