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Class Information
Number: 521/176
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 > -xh reactant contains a c-x-c group > With non -c-x-c- containing reactant
Description: Subject matter wherein at least one reactant which is other than a -N=C=X containing reactant and is other than a reactant containing both a -XH and a -C-X-C group is utilized.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7414080 |
Polyurethane polishing pad |
Aug. 19, 2008 |
| 7390867 |
Isocyanate adducts |
Jun. 24, 2008 |
| 7338983 |
Low density polyurethane foam, method of producing, and articles comprising the same |
Mar. 4, 2008 |
| 7326738 |
Composition and process for forming a flexible polyurethane foam sealing device |
Feb. 5, 2008 |
| 7307136 |
Polyurethane elastomers |
Dec. 11, 2007 |
| 7300961 |
Polyol compositions useful for preparing dimensionally stable, low density water-blown rigid foams and the processes related thereto |
Nov. 27, 2007 |
| 7268170 |
Foam modifier, foams prepared from this novel foam modifier and a process for the preparation of these foams |
Sep. 11, 2007 |
| 7183330 |
Silicone surfactants for rigid polyurethane foam made with hydrocarbon blowing agents |
Feb. 27, 2007 |
| 7169824 |
Process for preparing a flexible polyurethane foam |
Jan. 30, 2007 |
| 7066724 |
Apparatus for flatproofing a tire and wheel assembly |
Jun. 27, 2006 |
| 7008974 |
Composition for preparing rigid polyurethane foam having good demolding property |
Mar. 7, 2006 |
| 6884824 |
Process for preparing an elastomer |
Apr. 26, 2005 |
| 6861454 |
Raw materials for anti-cracking polyurethane foams and method for preparing the same |
Mar. 1, 2005 |
| 6806342 |
Process for preparing a polyurethane material |
Oct. 19, 2004 |
| 6780895 |
Polyurethane carpet backings with improved tuft bind |
Aug. 24, 2004 |
| 6706844 |
Polyurethane products produced from aluminum phosphonate catalyzed polyetherols |
Mar. 16, 2004 |
| 6673849 |
Composites comprising a hydrophilic polyester-polyurethane foamed material for vehicle interior trim |
Jan. 6, 2004 |
| 6617368 |
Isotropic rigid foams |
Sep. 9, 2003 |
| 6590057 |
Polyurethane elastomers, process for their production and use thereof |
Jul. 8, 2003 |
| 6572791 |
Electroconductive elastic member, elastic member and image formation equipment |
Jun. 3, 2003 |
| 6569352 |
Phthalic anhydride based polyester-ether polyols and urethane prepolymers produced therefrom |
May. 27, 2003 |
| 6569913 |
Isocyanate-terminated prepolymers |
May. 27, 2003 |
| 6521676 |
Use of polyether-polyurethane for safety clothing |
Feb. 18, 2003 |
| 6495611 |
Polyisocyanate polyaddition products |
Dec. 17, 2002 |
| 6461536 |
Stable polyester polyol composition |
Oct. 8, 2002 |
| 6451430 |
Polyurethane, foam-polyester composite structure and method |
Sep. 17, 2002 |
| 6433032 |
Process for rigid polyurethane foams |
Aug. 13, 2002 |
| 6420443 |
Additives for enhanced hydrocarbon compatibility in rigid polyurethane foam systems |
Jul. 16, 2002 |
| 6420445 |
Polyurethane and polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties |
Jul. 16, 2002 |
| 6420446 |
Polyurethane prepared from sorbitol-branched polyesters |
Jul. 16, 2002 |
| 6395798 |
Low density microcellular elastomers based on isocyanate-terminated prepolymers |
May. 28, 2002 |
| 6291538 |
Process for preparing polyurethane foam |
Sep. 18, 2001 |
| 6268402 |
Process for making isocyanate-based rigid foam |
Jul. 31, 2001 |
| 6245826 |
Isocyanate-based rigid foam |
Jun. 12, 2001 |
| 6245825 |
Polyurethane foams |
Jun. 12, 2001 |
| 6211257 |
Open celled polyurethane foams and methods and compositions for preparing such foams |
Apr. 3, 2001 |
| 6156864 |
Preparation of flexible polyurethane foams |
Dec. 5, 2000 |
| 6136878 |
Very fine cell polyurethane foams and processes for producing the same |
Oct. 24, 2000 |
| 6130309 |
Hydrophilic polyether polyurethanes containing carboxylic acid |
Oct. 10, 2000 |
| 6127443 |
Energy management polyurethane rigid foams with high recovery |
Oct. 3, 2000 |
| 6114402 |
Modified rigid, foamable urethane composition and method |
Sep. 5, 2000 |
| 6100309 |
Process for preparing elastic polyurethane slabstock foams |
Aug. 8, 2000 |
| 6066681 |
Open celled polyurethane foams and methods and compositions for preparing such foams |
May. 23, 2000 |
| 6031010 |
Polyurethane foam composition having improved flex fatigue |
Feb. 29, 2000 |
| 6022903 |
Permanent gas blown microcellular polyurethane elastomers |
Feb. 8, 2000 |
| 5916994 |
Polymer polyols and preparation thereof |
Jun. 29, 1999 |
| 5891928 |
Preparation of flexible, flame-bondable polyurethane polyether foams having improved adhesion |
Apr. 6, 1999 |
| 5889068 |
Water blown polyurethane soling systems |
Mar. 30, 1999 |
| 5874484 |
Use of polyol mixtures in rigid and semi-rigid polyurethane foams |
Feb. 23, 1999 |
| 5874485 |
Flexible foams and flexible molded foams based on allophanate-modified diphenylmethane diisocyanates and processes for the production of these foams |
Feb. 23, 1999 |
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