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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:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8703834 Preparation of crosslinked organic porous particlesrelated applications Apr. 22, 2014
8691883 Aerogel-foam composites Apr. 8, 2014
8586641 Monolithic organic copolymer Nov. 19, 2013
8557270 Interconnected porous non-degradable poly(vinyl) alcohol implant and method of manufacture Oct. 15, 2013
8550256 Filtration membrane with covalently grafted fouling-resistant polymer Oct. 8, 2013
8487013 Production method of porous resin particle having hydroxyl group Jul. 16, 2013
8481603 Methods for making polymer beads Jul. 9, 2013
8470898 Methods of making lithium ion battery separators Jun. 25, 2013
8470901 Organic aerogel and composition and method for manufacturing the organic aerogel Jun. 25, 2013
8436060 Organic aerogel and composition for the organic aerogel May. 7, 2013
8436062 Nanoporous media templated from unsymmetrical amphiphilic porogens May. 7, 2013
8415403 Mesoporous materials and reactants for preparing them Apr. 9, 2013
8410186 Process for manufacturing porous epoxy with open pores and porous epoxy made therefrom Apr. 2, 2013
8399530 Polymer foams Mar. 19, 2013
8389589 Nanoporous media with lamellar structures Mar. 5, 2013
8383693 Aerogel, and composition and method for manufacturing the aerogel Feb. 26, 2013
8371475 Process for metering superabsorbents Feb. 12, 2013
8304465 High strength air-dried aerogels Nov. 6, 2012
8277719 Process for the preparation of auxetic foams Oct. 2, 2012
8268411 Materials containing voids with void size controlled on the nanometer scale Sep. 18, 2012
8268903 Nanoporous media templated from unsymmetrical amphiphilic porogens Sep. 18, 2012
8222308 Porous polymer structures Jul. 17, 2012
8193255 Porous infusible polymer parts Jun. 5, 2012
8143322 Pump and pumping system for microfluidic lab-on-a-chip using porous structure and fabricating method thereof Mar. 27, 2012
8119700 Organic aerogel, composition for forming the same, and method of preparing the same Feb. 21, 2012
8076383 Porous resin particle having hydroxy group or primary amino group and production method thereof Dec. 13, 2011
8022110 Porous polyimide Sep. 20, 2011
8003203 Resinous oil-retaining article and method for production thereof Aug. 23, 2011
7947799 High organic group content-periodic mesoporous organosilicas (HO-PMO's) May. 24, 2011
7943677 Method of producing interconnected volumetric porosity in materials May. 17, 2011
7943678 Method for the preparation of new segmented polyurethanes with high tear and tensile strengths and method for making porous scaffolds May. 17, 2011
7910198 Resinous porous article and method for production thereof Mar. 22, 2011
7910383 Molecular fingerprints with enhanced identifying capability, method for preparing same and use thereof Mar. 22, 2011
7850942 Porous carbons Dec. 14, 2010
7838567 Foams made from water-absorbing, basic polymers, method for the production and utilization thereof Nov. 23, 2010
7799839 Porous material having hierarchical pore structure and preparation method thereof Sep. 21, 2010
7674837 Gelled biopolymer based foam Mar. 9, 2010
7674408 Channeled biomedical foams an method for producing same Mar. 9, 2010
7671101 Gelled biopolymer based foam Mar. 2, 2010
7671100 Gelled biopolymer based foam Mar. 2, 2010
7671102 Gelled biopolymer based foam Mar. 2, 2010
7655210 Porous carbons Feb. 2, 2010
7517917 Composition for preparing nanoporous material comprising calixarene derivative Apr. 14, 2009
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

1 2 3 4 5 6 7

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