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Class Information
Number: 521/173
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 group, e.g., carboxylic acid ester, etc. > With non -c=x containing reactant
Description: Subject matter wherein in addition to the -N=C=X and containing reactant there is present a third reactant which is devoid of any group.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7414080 |
Polyurethane polishing pad |
Aug. 19, 2008 |
| 7393465 |
Hydrophobic polyols of low viscosity |
Jul. 1, 2008 |
| 7390867 |
Isocyanate adducts |
Jun. 24, 2008 |
| 7300961 |
Polyol compositions useful for preparing dimensionally stable, low density water-blown rigid foams and the processes related thereto |
Nov. 27, 2007 |
| 7262227 |
Process for producing synthetic resin foam, blowing agent and premix |
Aug. 28, 2007 |
| 7202284 |
Foamed thermoplastic polyurethanes |
Apr. 10, 2007 |
| 7183330 |
Silicone surfactants for rigid polyurethane foam made with hydrocarbon blowing agents |
Feb. 27, 2007 |
| 7160930 |
Water blown polyurethane spray foam system |
Jan. 9, 2007 |
| 7141613 |
Flame resistant rigid foams and formulations for the production thereof |
Nov. 28, 2006 |
| 7084230 |
Oxylated vegetable-based polyol having increased functionality and urethane materials formed using the polyol |
Aug. 1, 2006 |
| 7008974 |
Composition for preparing rigid polyurethane foam having good demolding property |
Mar. 7, 2006 |
| 7005458 |
Static dissipative polyurethane foams |
Feb. 28, 2006 |
| 6989406 |
Polyurea polyrethanes having improved physical properties |
Jan. 24, 2006 |
| 6960618 |
Preparation method for rigid polyurethane foam |
Nov. 1, 2005 |
| 6894083 |
Polyurethane foam composition |
May. 17, 2005 |
| 6878753 |
Process for producing polyurethane foam |
Apr. 12, 2005 |
| 6872758 |
Polyurethane foams and method of manufacture thereof |
Mar. 29, 2005 |
| 6861454 |
Raw materials for anti-cracking polyurethane foams and method for preparing the same |
Mar. 1, 2005 |
| 6849666 |
Polyurethanes containing dispersed crystalline polyesters |
Feb. 1, 2005 |
| 6846850 |
Rigid polyurethane foams with improved properties |
Jan. 25, 2005 |
| 6833390 |
Process for preparing closed-cell water-blown rigid polyurethane foams having improved mechanical properties |
Dec. 21, 2004 |
| 6784273 |
Biomedical polyurethane, its preparation and use |
Aug. 31, 2004 |
| 6784220 |
Polyurethane foam |
Aug. 31, 2004 |
| 6774154 |
Semiflexible and flexible polyurethanes foams having low fogging characteristics and improved physical properties |
Aug. 10, 2004 |
| 6753357 |
Rigid foam compositions and method employing methyl formate as a blowing agent |
Jun. 22, 2004 |
| 6740686 |
Process for the manufacture of polyurethane foam, amine polyesterpolyol used in this process and foam obtained |
May. 25, 2004 |
| 6737471 |
Polyurethane elastomers which exhibit improved stability to hydrolysis |
May. 18, 2004 |
| 6710095 |
Polyol containing glycol adduct for use in producing rigid foam |
Mar. 23, 2004 |
| 6706774 |
Two-component on-site foam system and its use for foaming openings for the purpose of fire protection |
Mar. 16, 2004 |
| 6696505 |
Preparation of polyurethane foams |
Feb. 24, 2004 |
| 6667416 |
Method and apparatus for producing polyester polyol, polyester polyol and polyurethane foam |
Dec. 23, 2003 |
| 6646020 |
Isopropyl chloride with hydrofluorocarbon or hydrofluoroether as foam blowing agents |
Nov. 11, 2003 |
| 6638989 |
Method of preparing polyurethane-modified polyisocyanurate foam |
Oct. 28, 2003 |
| 6638990 |
Flame-laminable polyurethane foams |
Oct. 28, 2003 |
| 6635685 |
Rigid polyurethane foam and process for producing the same |
Oct. 21, 2003 |
| 6632851 |
Flame-laminable polyurethane foams |
Oct. 14, 2003 |
| 6586490 |
Polyol mixture for the preparation of rigid polyurethane foams |
Jul. 1, 2003 |
| 6569352 |
Phthalic anhydride based polyester-ether polyols and urethane prepolymers produced therefrom |
May. 27, 2003 |
| 6559196 |
Tough, fire resistant polyurethane foam and method of manufacture thereof |
May. 6, 2003 |
| 6541411 |
Titanium/zirconium catalysts and their use to prepare esters or polyesters |
Apr. 1, 2003 |
| 6534555 |
Catalyst systems for polyurethane polyester foams |
Mar. 18, 2003 |
| 6521676 |
Use of polyether-polyurethane for safety clothing |
Feb. 18, 2003 |
| 6495611 |
Polyisocyanate polyaddition products |
Dec. 17, 2002 |
| 6486224 |
Polyurethane elastomers having improved hydrolysis resistance |
Nov. 26, 2002 |
| 6476091 |
Polyol composition containing a hydrocarbon blowing agent |
Nov. 5, 2002 |
| 6472442 |
Grasping parts |
Oct. 29, 2002 |
| 6472446 |
Phase stable polyol composition containing hydrocarbon as the blowing agent |
Oct. 29, 2002 |
| 6465534 |
Elastic sponge |
Oct. 15, 2002 |
| 6461536 |
Stable polyester polyol composition |
Oct. 8, 2002 |
| 6455605 |
Foamable composition exhibiting instant thixotropic gelling |
Sep. 24, 2002 |
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