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Class Information
Number: 521/143
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 ethylenically unsaturated reactants only > From acyclic mono-unsaturated hydrocarbon as only reactant
Description: Subject matter wherein only mono-ethylenically-unsaturated acyclic hydrocarbons are utilized as reactants.










Sub-classes under this class:

Class Number Class Name Patents
521/144 Interpolymer 172


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8686056 Durable foam of olefin polymers, methods of making foam and articles prepared from same Apr. 1, 2014
8680169 Porous polypropylene film Mar. 25, 2014
8669002 Microporous film Mar. 11, 2014
8658732 Cavitated oriented polyethylene polymer composites Feb. 25, 2014
8652801 Hydrophilic IR transparent membrane, spectroscopic sample holder comprising same and method of using same Feb. 18, 2014
8648122 Method of foaming polyolefin using acrylated epoxidized fatty acid and foam produced therefrom Feb. 11, 2014
8598242 Expanded polypropylene copolymer resin particles Dec. 3, 2013
8598241 Polypropylene resin pre-foamed particle and method for producing same, and polypropylene resin in-mold foaming molded article Dec. 3, 2013
8563621 Blowing agents formed from nanoparticles of carbonates Oct. 22, 2013
8513317 Process for producing expanded polyolefin resin particles and expanded polyolefin resin particles Aug. 20, 2013
8492447 Closed cell propylene-ethylene foam Jul. 23, 2013
8486521 Microporous polyethylene film with good property of strength and permeability at high temperature Jul. 16, 2013
8461222 Shoe sole component Jun. 11, 2013
8415442 High pressure low density polyethylene resins with improved optical properties produced through use of highly active chain transfer agents Apr. 9, 2013
8394867 Polypropylene resin foamed bead and molded article therefrom Mar. 12, 2013
8357727 Durable foam of olefin polymers, methods of making foam and articles prepared from same Jan. 22, 2013
8344037 Resin composition for cross-linked foam molding, cross-linked foam molded article, and method for production of cross-linked foam molded article Jan. 1, 2013
8318824 Hydrophilic polyolefin sintered body Nov. 27, 2012
8303922 Method for exfoliation of hexagonal boron nitride Nov. 6, 2012
8257589 Polymeric foam coalescing agent Sep. 4, 2012
8236865 Hydrophilic vinylidene fluoride resin composition and method for production thereof Aug. 7, 2012
8222310 Extruded polypropylene resin foam and process for producing the same Jul. 17, 2012
8101672 Azeotrope-like compositions of 1,1,2,3,3-pentafluoropropene Jan. 24, 2012
8093320 Compositions comprising polyphosphonates and additives that exhibit an advantageous combination of properties, and methods related thereto Jan. 10, 2012
8088835 Method for producing expansion-molded polypropylene-based resin article Jan. 3, 2012
8058348 Polyolefin microporous film Nov. 15, 2011
8026291 Expanded and extruded polyolefin foams made with methyl formate-based blowing agents Sep. 27, 2011
8008363 Shoe sole component Aug. 30, 2011
7977395 Electronically and ionically conductive porous material and method for manufacture of resin wafers therefrom Jul. 12, 2011
7956096 Microspheres Jun. 7, 2011
7947752 Method of producing microporous high density polyethylene film May. 24, 2011
7923478 Nanoporous polymeric material and preparation method Apr. 12, 2011
7906561 Cross-linked polyolefin foam Mar. 15, 2011
7887727 Preparing method of microporous polyolefin film through effective extrusion Feb. 15, 2011
7820729 Process for preparing a functionalised polyHIPE polymer Oct. 26, 2010
7799841 Polypropylene foam Sep. 21, 2010
7795321 Rheology modification of interpolymers of ethylene/.alpha.-olefins and articles made therefrom Sep. 14, 2010
7759404 Inherently open-celled polypropylene foam with large cell size Jul. 20, 2010
7741378 Porous monodispersed particles and method for production thereof, and use thereof Jun. 22, 2010
7691911 Polyolefin-based aerogels Apr. 6, 2010
7683101 Pre-expanded particle of olefin-modified polystyrene resin, process for producing the same, and molded foam Mar. 23, 2010
7662324 Polymer processing aid and method for processing polymers Feb. 16, 2010
7560498 Process of producing foamed molding from expanded polypropylene resin beads and process of producing expanded polypropylene resin beads Jul. 14, 2009
7557147 Soft foams made from interpolymers of ethylene/alpha-olefins Jul. 7, 2009
7475686 Earplug Jan. 13, 2009
7456228 Durable foam of olefin polymers, methods of making foam and articles prepared from same Nov. 25, 2008
7452920 Electronically and ionically conductive porous material and method for manufacture of resin wafers therefrom Nov. 18, 2008
7435761 Microporous polyethylene film and method of producing the same Oct. 14, 2008
7423070 Surface-modified base matrices Sep. 9, 2008
7361694 Durable foam of olefin polymers, methods of making foam and articles prepared from same Apr. 22, 2008

1 2 3 4 5 6 7 8 9 10 11










 
 
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