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Class Information
Number: 521/129
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 formation prior to or during solid polymer formation in the presence of a stated ingredient other than water > Ingredient is a nitrogen containing compound > Nitrogen compound contains a nitrogen atom bonded to three carbon atoms and wherein none of the carbon atoms are double-bonded to oxygen
Description: Subject matter wherein the nitrogen compound contains at least one nitrogen atom which is bonded to three carbon atoms and wherein none of the carbon atoms bonded to the nitrogen atom are double bonded to oxygen.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8637584 Polyester polyol-containing polyurethane systems having improved hydrolytic stability Jan. 28, 2014
8618014 Fast demold/extended cream time polyurethane formulations Dec. 31, 2013
8580864 Trimer catalysts with improved processability and surface cure Nov. 12, 2013
8552077 Trimer catalyst additives for improving foam processability Oct. 8, 2013
8530534 Trimerization catalysts from sterically hindered salts Sep. 10, 2013
8530533 Water-blown rigid foams for the insulation of liquefied natural gas tanks Sep. 10, 2013
8513318 Method for producing a rigid polyurethane foam Aug. 20, 2013
8501828 Cure rebond binder Aug. 6, 2013
8470899 Silicone composition which is cross-linkable by dehydrogenative condensation in the presence of a non-metal catalyst Jun. 25, 2013
8466207 Method for providing a low density high strength polyurethane foam Jun. 18, 2013
8455562 Silicone composition suitable for cross-linking by dehydrogenative condensation in the presence of a non-metal catalyst Jun. 4, 2013
8445555 Stabilized carbanions as trimerization catalysts May. 21, 2013
8426482 Method for producing viscoelastic polyurethane flexible foams Apr. 23, 2013
8372892 Attached, high reactivity rigid polyurethane foams Feb. 12, 2013
8258196 Method for producing rigid polyurethane foam, and rigid polyurethane foam Sep. 4, 2012
8242184 Process for producing flexible polyurethane foam Aug. 14, 2012
8222311 Hydroxyalkylated polyalkylenepolyamine composition, method of producing the same and their use in polyurethanes Jul. 17, 2012
8143321 N,N,N,'-trimethyl-bis-(aminoethyl) ether and its derivatives as catalysts for polyurethanes Mar. 27, 2012
8093309 Light colored foam for use in marine applications Jan. 10, 2012
8076385 Use of flame retardant aqueous liquid composition in making flame retardant polyurethane foam article Dec. 13, 2011
8063113 Polyurethane foam-forming compositions containing polysilsesquioxane cell opening agents Nov. 22, 2011
8048935 Liquid foam systems and ASTM E-84 class 1 rated rigid, high-density polyurethane foams and articles prepared therefrom Nov. 1, 2011
8017663 Modified asphaltic foam materials Sep. 13, 2011
7985779 Manufacture of polyurethane foam ball Jul. 26, 2011
7897652 Polyurethane composition useful as shock absorbers and a method for their preparation Mar. 1, 2011
7872055 Catalyst composition for water blown, low density, rigid polyurethane foam Jan. 18, 2011
7825166 Flexible polyurethane foam, process for its production, and seat for automobile using the flexible polyurethane foam Nov. 2, 2010
7776934 One-component polyurethane foam compositions and methods for their use Aug. 17, 2010
7772312 Reinforced polyurethane-urea elastomers and their use Aug. 10, 2010
7714030 Attached, high reactivity rigid polyurethane foams containing oxazolidone groups May. 11, 2010
7691913 Rigid polyurethane foam based on toluene diamine-initiated polyols Apr. 6, 2010
7674838 Curable foam elastomeric compositions Mar. 9, 2010
7626073 Hydrophobic surface coated absorbent articles and associated methods Dec. 1, 2009
H2233 Catalysts which stabilize hydrofluorocarbon blowing agents in polyurethane foam compositions Nov. 3, 2009
7572837 Process for the production of flexible polyurethane foams Aug. 11, 2009
7541388 Polyimide foams Jun. 2, 2009
7393879 High resilient silicone foam and process for preparing same Jul. 1, 2008
7390867 Isocyanate adducts Jun. 24, 2008
7361695 Process to manufacture flexible polyurethane foams Apr. 22, 2008
7192990 Tertiary amino alkyl amide polyurethane catalysts derived from long chain alkyl and fatty carboxylic acids Mar. 20, 2007
7189765 Improving the physical properties of polyurethane foams using tertiary amino alkyl amide catalysts Mar. 13, 2007
7183330 Silicone surfactants for rigid polyurethane foam made with hydrocarbon blowing agents Feb. 27, 2007
7183331 Method for producing a rigid polyurethane foam Feb. 27, 2007
7169823 Tertiary alkanolamine polyurethane catalysts derived from long chain alkyl and fatty carboxylic acids Jan. 30, 2007
7078443 Viscoelastic foam layer and composition Jul. 18, 2006
7064172 Catalyst for production of a polyurethane resin and method for producing a polyurethane resin Jun. 20, 2006
6894139 Catalysts, in particular for the preparation of polyisocyanate polyadducts May. 17, 2005
6861453 Process for producing a urethane-modified polyisocyanurate foam Mar. 1, 2005
6861452 Composition for production of flame-retardant flexible polyurethane foams Mar. 1, 2005
6858654 Catalyst blends for producing low thermal desorption polyurethane foams Feb. 22, 2005

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