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Class Information
Number: 521/170
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 a -n=c=x containing reactant wherein x is a chalcogen atom > With -xh reactant wherein x is a chalcogen atom
Description: Subject matter wherein a -XH (X is a chalcogen containing material) is reacted with a -N=C=X containing material.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7456229 |
Process for the production of rigid and semi-rigid foams with low amounts of diisocyanate using polymer polyols characterized by high solids and a high hydroxyl number and the resultant foams |
Nov. 25, 2008 |
| 7455799 |
Method of producing polishing pad-use polyurethane foam and polyurethane foam |
Nov. 25, 2008 |
| 7435762 |
Fire resistant foam and foam products, method and dispersions for making same |
Oct. 14, 2008 |
| 7432312 |
Polyurethane foam having deodorization property or antibacterial effect |
Oct. 7, 2008 |
| 7423069 |
Blends of tetrahalophthalate esters and phosphorus-containing flame retardants for polyurethane compositions |
Sep. 9, 2008 |
| 7414080 |
Polyurethane polishing pad |
Aug. 19, 2008 |
| 7393465 |
Hydrophobic polyols of low viscosity |
Jul. 1, 2008 |
| 7393879 |
High resilient silicone foam and process for preparing same |
Jul. 1, 2008 |
| 7390839 |
Blends of alkyl substituted triaryl phosphate esters with phosphorus-containing flame retardants for polyurethane foams |
Jun. 24, 2008 |
| 7390867 |
Isocyanate adducts |
Jun. 24, 2008 |
| 7388036 |
Flexible polyurethane foam, process for its production, and seat for automobile employing it |
Jun. 17, 2008 |
| 7388037 |
Low-resilience flexible polyurethane foam and process for producing the same |
Jun. 17, 2008 |
| 7378454 |
Polyurethane composition and polishing pad |
May. 27, 2008 |
| 7361695 |
Process to manufacture flexible polyurethane foams |
Apr. 22, 2008 |
| 7338983 |
Low density polyurethane foam, method of producing, and articles comprising the same |
Mar. 4, 2008 |
| 7326362 |
Blowing agent, premix and process for preparing rigid polyurethane foam or polyisocyanurate foam |
Feb. 5, 2008 |
| 7326738 |
Composition and process for forming a flexible polyurethane foam sealing device |
Feb. 5, 2008 |
| 7300961 |
Polyol compositions useful for preparing dimensionally stable, low density water-blown rigid foams and the processes related thereto |
Nov. 27, 2007 |
| 7288577 |
Polyurethane foam containing flame retardant blend of non-oligomeric and oligomeric flame retardants |
Oct. 30, 2007 |
| 7285577 |
Method for producing rigid polyurethane foam |
Oct. 23, 2007 |
| 7268170 |
Foam modifier, foams prepared from this novel foam modifier and a process for the preparation of these foams |
Sep. 11, 2007 |
| 7262227 |
Process for producing synthetic resin foam, blowing agent and premix |
Aug. 28, 2007 |
| 7259191 |
Multi-layer golf ball with a foamed intermediate layer |
Aug. 21, 2007 |
| 7247658 |
Reduction of discoloration in white polyurethane foams |
Jul. 24, 2007 |
| 7244772 |
Process for preparing polyurethane polyol and rigid foams therefrom |
Jul. 17, 2007 |
| 7230036 |
Foam insulation made with expandable microspheres and methods |
Jun. 12, 2007 |
| 7230037 |
Method for mixing a polyol component and an isocyanate component |
Jun. 12, 2007 |
| 7223801 |
Joint fill composition and method |
May. 29, 2007 |
| 7214294 |
Azeotrope-like compositions of pentafluoropropane and water |
May. 8, 2007 |
| 7202284 |
Foamed thermoplastic polyurethanes |
Apr. 10, 2007 |
| 7199164 |
High-strength black polyurethane foams |
Apr. 3, 2007 |
| 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 |
| 7179845 |
Elastomeric latex foams |
Feb. 20, 2007 |
| 7179846 |
Soundproofing and thermally insulating structural element |
Feb. 20, 2007 |
| 7169824 |
Process for preparing a flexible polyurethane foam |
Jan. 30, 2007 |
| 7169823 |
Tertiary alkanolamine polyurethane catalysts derived from long chain alkyl and fatty carboxylic acids |
Jan. 30, 2007 |
| 7144926 |
Blowing agent blends |
Dec. 5, 2006 |
| 7141613 |
Flame resistant rigid foams and formulations for the production thereof |
Nov. 28, 2006 |
| 7138437 |
Polyurethane composition containing a property-enhancing agent |
Nov. 21, 2006 |
| 7132459 |
Moulded bodies made from a polyurethane material, production and use thereof |
Nov. 7, 2006 |
| 7122135 |
Blend of organophosphorus flame retardant, lactone stabilizer, and phosphate compatibilizer |
Oct. 17, 2006 |
| 7098255 |
Process for producing polyurethane foam |
Aug. 29, 2006 |
| 7087657 |
Stable polyol dispersions, polyurethane moldings produced therefrom, and their use |
Aug. 8, 2006 |
| 7078442 |
Method of consolidating sand or gravel into a solid mass |
Jul. 18, 2006 |
| 7078443 |
Viscoelastic foam layer and composition |
Jul. 18, 2006 |
| 7008974 |
Composition for preparing rigid polyurethane foam having good demolding property |
Mar. 7, 2006 |
| 7008973 |
Vacuum cooled foams |
Mar. 7, 2006 |
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