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Class Information
Number: 521/139
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 two or more solid polymers or from at least one solid polymer and at least one polymer-forming system > At least one polymer is derived from an ethylenically unsaturated aromatic reactant or wherein the polymer-forming system contains the same type of reactant
Description: Subject matter wherein at least one of the polymers is derived from an ethylenically unsaturated aromatic reactant.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8691883 Aerogel-foam composites Apr. 8, 2014
8686056 Durable foam of olefin polymers, methods of making foam and articles prepared from same Apr. 1, 2014
8668850 Flame-retarded foamed plastic compositions and shaped articles Mar. 11, 2014
8664286 Vibration damping composition Mar. 4, 2014
8592494 Styrene-modified linear low-density polyethylene-based resin beads, styrene-modified linear low-density polyethylene-based expandable resin beads, production method therefor, pre-expanded bead Nov. 26, 2013
8557885 Extruded thermoplastic resin foam Oct. 15, 2013
8552076 Fused aerogel-polymer composite, methods of manufacture thereof and articles comprising the same Oct. 8, 2013
8524792 Deformable, rigid polystyrene foam board Sep. 3, 2013
8497316 Crosslinkable and foaming polyester-polyurethane (hybrid) resin moulding compositions, with foaming characteristics for closed mould applications Jul. 30, 2013
8476325 Styrene-modified polyethylene-based resin beads, styrene-modified polyethylene-based expandable resin beads, production method therefor, pre-expanded beads and expanded molded article Jul. 2, 2013
8466298 High selectively polymeric adsorbent based on the hydrogen bonding interaction and the use thereof in isolation and purification of active components from gingko biloba extract Jun. 18, 2013
8461222 Shoe sole component Jun. 11, 2013
8436105 Vulcanizable composition having acoustic attenuating properties May. 7, 2013
8420707 Biomass composite composition and foaming method thereof Apr. 16, 2013
8404172 Methods of processing high service temperature hydrocarbon gels Mar. 26, 2013
8378001 Polystyrene/polyethylene oxide copolymer for enhancing water vapor permeability in thermoplastic foam Feb. 19, 2013
8357727 Durable foam of olefin polymers, methods of making foam and articles prepared from same Jan. 22, 2013
8357754 Process for producing microporous polymeric object, and microporous polymeric object and separation membrane Jan. 22, 2013
8349909 Polystyrene/polyethylene oxide copolymer cell size enlarger for foam Jan. 8, 2013
8338534 Process for producing microporous polymeric object, and microporous polymeric object and separation membrane Dec. 25, 2012
8324287 Positive skew styrene-acrylonitrile copolymer foam Dec. 4, 2012
8323787 Additive blend for enhancing water vapor permeability and increasing cell size in thermoplastic foams Dec. 4, 2012
8318863 Foaming polypropylene resin composition and process for producing injection-molded foams from the composition Nov. 27, 2012
8314161 Deformable, rigid polystyrene foam board Nov. 20, 2012
8293807 Method for the production of rigid polyurethane foam Oct. 23, 2012
8268904 Extruded polystyrene foam with broad comonomer content distribution Sep. 18, 2012
8242183 Brominated polymers as FR additives and polymer systems containing same Aug. 14, 2012
8217092 Multicomponent polyurethane/vinyl ester hybrid foam system and its use Jul. 10, 2012
8217093 Two-component polyurethane / vinyl ester hybrid foam system and its use as a flame retardant material and material for filling openings in buildings with foam Jul. 10, 2012
8211953 Polyolefin resin foam and process for production thereof Jul. 3, 2012
8211952 Curable sealing method and foamed composition Jul. 3, 2012
8202945 Process for brominating butadieneninyl aromatic copolymers Jun. 19, 2012
8158722 Tough and rigid mixtures of alpha-methylstyrene-acrylnitrile copolymers and of block copolymers Apr. 17, 2012
8148437 Integral polyurethane foams comprising dialkyl cyclohexanedicarboxylates as internal mold release agent Apr. 3, 2012
8084510 Expandable polystyrenic resin particles and production process thereof, pre-expanded particles and molded foam product Dec. 27, 2011
8076383 Porous resin particle having hydroxy group or primary amino group and production method thereof Dec. 13, 2011
8017664 Process for preparing polymer polyols Sep. 13, 2011
8008398 Foamable polymeric compositions and articles containing foamed compositions Aug. 30, 2011
7977397 Polymer blends of biodegradable or bio-based and synthetic polymers and foams thereof Jul. 12, 2011
7960443 Extruded styrenic resin foam and method for producing the same Jun. 14, 2011
7947754 Foam May. 24, 2011
7939572 Aqueous dispersion of polymeric particles May. 10, 2011
7930782 Gels, gel composites, and gel articles Apr. 26, 2011
7919538 Styrene acrylonitrile copolymer foam with infrared attenuating agents Apr. 5, 2011
7919539 Concentrate of polyfunctional compounds usable for the preparation of foamed polyester materials Apr. 5, 2011
7879922 Rigid, closed-cell, graft-polymer foam; rigid flexible cellular foam; rigid flexible cellular foam mixtures; and method for manufacturing a rigid, closed-cell, graft-polymer foam Feb. 1, 2011
7872056 Polymer blends of biodegradable or bio-based and synthetic polymers and foams thereof Jan. 18, 2011
7868053 Expandable polystyrene granulates with a bi- or multi-modal molecular-weight distribution Jan. 11, 2011
7838567 Foams made from water-absorbing, basic polymers, method for the production and utilization thereof Nov. 23, 2010
7812062 Durable foam of olefin polymers, methods of making foam and articles prepared from same Oct. 12, 2010

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