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Class Information
Number: 521/167
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 nitrogen containing reactant > Nitrogen reactant contains a c-xh group wherein x is a chalcogen atom and wherein the c atom is not double-bonded to a chalcogen atom > Nitrogen reactant contains a n-(c-c-o)-group
Description: Subject matter wherein the nitrogen reactant contains a N-(C-C-O- group.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7423112 |
Polyether polyols containing pendant amine groups and a process for their preparation |
Sep. 9, 2008 |
| 7414080 |
Polyurethane polishing pad |
Aug. 19, 2008 |
| 7361695 |
Process to manufacture flexible polyurethane foams |
Apr. 22, 2008 |
| 7300961 |
Polyol compositions useful for preparing dimensionally stable, low density water-blown rigid foams and the processes related thereto |
Nov. 27, 2007 |
| 7238730 |
Viscoelastic polyurethane foam |
Jul. 3, 2007 |
| 7223801 |
Joint fill composition and method |
May. 29, 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 |
| 7078443 |
Viscoelastic foam layer and composition |
Jul. 18, 2006 |
| 7078442 |
Method of consolidating sand or gravel into a solid mass |
Jul. 18, 2006 |
| 7066724 |
Apparatus for flatproofing a tire and wheel assembly |
Jun. 27, 2006 |
| 7056958 |
Methods of production of high-strength black polyurethane foams |
Jun. 6, 2006 |
| 7008974 |
Composition for preparing rigid polyurethane foam having good demolding property |
Mar. 7, 2006 |
| 6949589 |
Elastic foamed grinder material and method for producing the same |
Sep. 27, 2005 |
| 6924321 |
Polyols with autocatalytic characteristics and polyurethane products made therefrom |
Aug. 2, 2005 |
| 6890966 |
Process for the production of a lightweight cold urethane |
May. 10, 2005 |
| 6861454 |
Raw materials for anti-cracking polyurethane foams and method for preparing the same |
Mar. 1, 2005 |
| 6831110 |
Rigid, dimensionally stable polyurethane foams and a process for the production of such foams in which the foam pressure is reduced |
Dec. 14, 2004 |
| 6818675 |
Process for preparing polyurethane foam |
Nov. 16, 2004 |
| 6762274 |
Low emission polyurethane polymers made with autocatalytic polyols |
Jul. 13, 2004 |
| 6762214 |
Process for the production of rigid foams from alkaline polyether polyols |
Jul. 13, 2004 |
| 6740686 |
Process for the manufacture of polyurethane foam, amine polyesterpolyol used in this process and foam obtained |
May. 25, 2004 |
| 6713521 |
Method of preparing rigid polyurethane foam and composition of rigid polyurethane foam |
Mar. 30, 2004 |
| 6635685 |
Rigid polyurethane foam and process for producing the same |
Oct. 21, 2003 |
| RE38201 |
Amido functional amine catalysts for the production of polyurethanes |
Jul. 22, 2003 |
| 6586487 |
Low-density, water blown polyurethane foams for energy-absorbing applications |
Jul. 1, 2003 |
| 6586490 |
Polyol mixture for the preparation of rigid polyurethane foams |
Jul. 1, 2003 |
| 6562880 |
Polyurethane or polyisocyanurate foams blown with hydrofluorocarbons and carbon atoms |
May. 13, 2003 |
| 6534555 |
Catalyst systems for polyurethane polyester foams |
Mar. 18, 2003 |
| 6509387 |
Process for preparing rigid foamed materials containing urethane groups |
Jan. 21, 2003 |
| 6506813 |
Process for making cold-setting flexible foams, polyol composition and reaction system useful therefor, foams thus obtained |
Jan. 14, 2003 |
| 6495722 |
Mannich polyols for rigid spray foams |
Dec. 17, 2002 |
| 6476091 |
Polyol composition containing a hydrocarbon blowing agent |
Nov. 5, 2002 |
| 6472448 |
Halogen-free, flame-retardant rigid polyurethane foam and a process for its production |
Oct. 29, 2002 |
| 6472446 |
Phase stable polyol composition containing hydrocarbon as the blowing agent |
Oct. 29, 2002 |
| 6458860 |
Advances in urethane foam catalysis |
Oct. 1, 2002 |
| 6433032 |
Process for rigid polyurethane foams |
Aug. 13, 2002 |
| 6420446 |
Polyurethane prepared from sorbitol-branched polyesters |
Jul. 16, 2002 |
| 6410608 |
Process for producing polyurethane foam |
Jun. 25, 2002 |
| 6387972 |
Process to enhance polyurethane foam performance |
May. 14, 2002 |
| 6339110 |
Process for rigid polyurethane foams |
Jan. 15, 2002 |
| 6316513 |
Process for the producing of hard polyurethane foams with low heat conductivity |
Nov. 13, 2001 |
| 6306920 |
Method for producing closed-cell rigid polyurethane foams having low thermal conductivity |
Oct. 23, 2001 |
| 6306918 |
Semi-rigid polyurethane foam |
Oct. 23, 2001 |
| 6274639 |
High build polyurethane coating |
Aug. 14, 2001 |
| 6156814 |
Amido functional amine catalysts for the production of polyurethanes |
Dec. 5, 2000 |
| 6107359 |
Polyether polyols, polyol formulation containing them and their use in the production of hard polyurethane foams |
Aug. 22, 2000 |
| 6100308 |
Preparation of polyurethanes having improved curing |
Aug. 8, 2000 |
| 6093342 |
Preparation of a homogeneous, demixing-stable polyol component |
Jul. 25, 2000 |
| 6084001 |
High build polyurethane coating |
Jul. 4, 2000 |
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