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Class Information
Number: 521/164
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
Description: Subject matter wherein the nitrogen reactant contains a C-XH (X is a chalcogen) group and wherein at least one carbon atom that may be bound to a -XH group is not double bonded to a chalcogen atom. Included herein are alcohols, etc.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7361695 |
Process to manufacture flexible polyurethane foams |
Apr. 22, 2008 |
| 7238730 |
Viscoelastic polyurethane foam |
Jul. 3, 2007 |
| 7223801 |
Joint fill composition and method |
May. 29, 2007 |
| 7199168 |
Process for making cellular composites using polymeric isocyanates as binders for hollow filler particles |
Apr. 3, 2007 |
| 7183331 |
Method for producing a rigid polyurethane foam |
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 |
| 7078443 |
Viscoelastic foam layer and composition |
Jul. 18, 2006 |
| 7078442 |
Method of consolidating sand or gravel into a solid mass |
Jul. 18, 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 |
| 6890966 |
Process for the production of a lightweight cold urethane |
May. 10, 2005 |
| 6833434 |
Noctilucent polyurethane chips and methods of manufacturing the same |
Dec. 21, 2004 |
| 6818675 |
Process for preparing polyurethane foam |
Nov. 16, 2004 |
| 6777456 |
Method for producing a rigid polyurethane foam |
Aug. 17, 2004 |
| 6767929 |
Process for producing polyurethane |
Jul. 27, 2004 |
| 6762274 |
Low emission polyurethane polymers made with autocatalytic polyols |
Jul. 13, 2004 |
| 6762213 |
Buffer polymers, co-immobile buffer and enzyme polymers and methods of synthesis thereof |
Jul. 13, 2004 |
| 6740686 |
Process for the manufacture of polyurethane foam, amine polyesterpolyol used in this process and foam obtained |
May. 25, 2004 |
| 6723819 |
Catalyst for production of a polyurethane resin and method for producing a polyurethane resin |
Apr. 20, 2004 |
| 6599952 |
Polyether polyols with increased functionality |
Jul. 29, 2003 |
| 6600001 |
Alkylamino oxamides as low odor, non-fugitive catalysts for the production of polyurethanes |
Jul. 29, 2003 |
| 6548564 |
Polyether polyols with increased functionality |
Apr. 15, 2003 |
| 6534555 |
Catalyst systems for polyurethane polyester foams |
Mar. 18, 2003 |
| 6495722 |
Mannich polyols for rigid spray foams |
Dec. 17, 2002 |
| 6472448 |
Halogen-free, flame-retardant rigid polyurethane foam and a process for its production |
Oct. 29, 2002 |
| 6458860 |
Advances in urethane foam catalysis |
Oct. 1, 2002 |
| 6433032 |
Process for rigid polyurethane foams |
Aug. 13, 2002 |
| 6410608 |
Process for producing polyurethane foam |
Jun. 25, 2002 |
| 6387972 |
Process to enhance polyurethane foam performance |
May. 14, 2002 |
| 6306920 |
Method for producing closed-cell rigid polyurethane foams having low thermal conductivity |
Oct. 23, 2001 |
| 6274639 |
High build polyurethane coating |
Aug. 14, 2001 |
| 6248801 |
Tertiary amine-containing active methylene compounds for improving the dimensional stability of polyurethane foam |
Jun. 19, 2001 |
| 6114402 |
Modified rigid, foamable urethane composition and method |
Sep. 5, 2000 |
| 6103776 |
Phenolic amides and their use as stabilizers |
Aug. 15, 2000 |
| 6093342 |
Preparation of a homogeneous, demixing-stable polyol component |
Jul. 25, 2000 |
| 6084001 |
High build polyurethane coating |
Jul. 4, 2000 |
| 6077927 |
Process for coloring polymer resins and products thereof |
Jun. 20, 2000 |
| 6063308 |
Preparation of a homogeneous polyol component which is stable to separation |
May. 16, 2000 |
| 6040349 |
Production of rigid polyurethanes foams with reduced density |
Mar. 21, 2000 |
| 6013691 |
Expansible sealant compositions and blowing agents |
Jan. 11, 2000 |
| 6005016 |
Rigid polyurethane foam based on polyethers of TDA |
Dec. 21, 1999 |
| 6001890 |
Open celled cellular polyurethane products |
Dec. 14, 1999 |
| 5981612 |
Production of flameproofed, rigid, isocyanate-based foams |
Nov. 9, 1999 |
| 5889071 |
Process for the preparation of polyurethane foams |
Mar. 30, 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 |
| 5874021 |
Method for producing low-fuming rigid polyurethane foam |
Feb. 23, 1999 |
| 5874483 |
Aminopropylbis (aminoethyl) ether compositions for the production of polyurethanes |
Feb. 23, 1999 |
| 5872156 |
Method for producing low-fuming rigid polyurethane foam |
Feb. 16, 1999 |
| 5854296 |
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and tetramethylsilane |
Dec. 29, 1998 |
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