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Class Information
Number: 521/97
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 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 > Ingredient contains a carbon atom double-bonded to oxygen, e.g., carbon dioxide, carboxylic acid, etc.
Description: Subject matter wherein the stated ingredient contains a group, etc., carbonates, carbon dioxide, carboxylic acids, etc.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8703835 Reduced-VOC and non-VOC blowing agents for making expanded and extruded thermoplastic foams Apr. 22, 2014
8691046 Energy-activated room temperature-pumpable polymer compositions and devices for activating and dispensing the same Apr. 8, 2014
8648122 Method of foaming polyolefin using acrylated epoxidized fatty acid and foam produced therefrom Feb. 11, 2014
8623930 Thermoplastic resin foam, method of producing the same, and light reflecting material thereof Jan. 7, 2014
RE44682 Fluoropolymer foams, process to make them and applications thereof Dec. 31, 2013
8563621 Blowing agents formed from nanoparticles of carbonates Oct. 22, 2013
8557884 To enhance the thermal insulation of polymeric foam by reducing cell anisotropic ratio and the method for production thereof Oct. 15, 2013
8536241 (Meth)acryloyl pressure-sensitive foam adhesives Sep. 17, 2013
8524790 Starch film and method for manufacturing starch foam Sep. 3, 2013
8497316 Crosslinkable and foaming polyester-polyurethane (hybrid) resin moulding compositions, with foaming characteristics for closed mould applications Jul. 30, 2013
8487013 Production method of porous resin particle having hydroxyl group Jul. 16, 2013
8480930 Carbon aerogels for supercapacitors and method of manufacturing the same Jul. 9, 2013
8455560 Foam layer produced of a biodegradable polyester mixture Jun. 4, 2013
8431623 Process for forming a porous PVA scaffold using a pore-forming agent Apr. 30, 2013
8378001 Polystyrene/polyethylene oxide copolymer for enhancing water vapor permeability in thermoplastic foam Feb. 19, 2013
8349909 Polystyrene/polyethylene oxide copolymer cell size enlarger for foam Jan. 8, 2013
8288447 Foamable compositions based on epoxy resins and polyesters Oct. 16, 2012
8268905 Compositions containing poly(lactic acid), bacteriocin(s), plasticizers(s), and optionally pore forming agent(s), and methods or making Sep. 18, 2012
8119701 Method of manufacturing polystyrene foam with polymer processing additives Feb. 21, 2012
8071657 Organic, open cell foam materials, their carbonized derivatives, and methods for producing same Dec. 6, 2011
8013031 Extruded polylactide foams blown with carbon dioxide Sep. 6, 2011
7947752 Method of producing microporous high density polyethylene film May. 24, 2011
7919539 Concentrate of polyfunctional compounds usable for the preparation of foamed polyester materials Apr. 5, 2011
7906561 Cross-linked polyolefin foam Mar. 15, 2011
7901764 Multi-layered polylactic acid resin foamed body and multi-layered polylactic acid resin foamed molded article Mar. 8, 2011
7855239 Extruded propylene resin foam Dec. 21, 2010
7846987 Expanded and extruded biodegradable and reduced emission foams made with methyl formate-based blowing agents Dec. 7, 2010
7842735 Fluoropolymer foams, process to make them and applications thereof Nov. 30, 2010
7799840 Thermoplastic vibrational damper with constraining layer Sep. 21, 2010
7705056 Aerosol adhesive and canister-based aerosol adhesive system Apr. 27, 2010
7638560 Thermoplastic and polymer foams and method of preparation thereof Dec. 29, 2009
7605188 Polymer foams containing multi-functional layered nano-graphite Oct. 20, 2009
7364788 Fiber-filled molded articles Apr. 29, 2008
7307105 Thermoplastic foams made with methyl formate-based blowing agents Dec. 11, 2007
7265160 Crosslinked biodegradable resin continuous foamed sheet and method for production thereof Sep. 4, 2007
7226615 Expandable foam-like biomaterials and methods Jun. 5, 2007
7173070 Foam cushion and method of making and using the same Feb. 6, 2007
7160939 Active masterbatch for production of CO2 generating masterbatch Jan. 9, 2007
7118696 Method of forming light dispersing fiber and fiber formed thereby Oct. 10, 2006
7049348 Resorbable structure for treating and healing of tissue defects May. 23, 2006
7029609 Composition which can be foamed from a pressurized container for producing insulating foams Apr. 18, 2006
7030168 Supercritical fluid-assisted deposition of materials on semiconductor substrates Apr. 18, 2006
6903143 Process for producing thermo-expansive microcapsules Jun. 7, 2005
6900267 Methods of CO2-assisted reactive extrusion May. 31, 2005
6890964 Homopolymerized epoxy-based form-in-place material May. 10, 2005
6872756 Foam comprising ethylene/vinyl acetate copolymer Mar. 29, 2005
6872757 Expandable composition, blowing agent, and process for extruded thermoplastic foams Mar. 29, 2005
6870003 Process for production of modified thermoplastic resin and modified thermoplastic resins Mar. 22, 2005
6852764 Blend for masterbatches Feb. 8, 2005
6800668 Syntactic deformable foam compositions and methods for making Oct. 5, 2004

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