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Class Information
Number: 521/115
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 formation prior to or during solid polymer formation in the presence of a stated ingredient other than water > Ingredient contains a -c-x-c- group wherein x is a chalcogen atom and none of the c atoms bonded to the chalcogen are double-bonded to an additional chalcogen atom > -c-x-c- compound contains a nitrogen atom
Description: Subject matter wherein the -C-X-C ingredient contains a nitrogen atom.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7338713 |
Primer for adhesive sheets, article attached with an adhesive sheet and process for producing the article |
Mar. 4, 2008 |
| 6818675 |
Process for preparing polyurethane foam |
Nov. 16, 2004 |
| 6808800 |
Rigid polyurethane foam and heat insulating construction element comprising the same |
Oct. 26, 2004 |
| 6794420 |
Methods of producing stable novel black polyurethane articles with polymeric colorants |
Sep. 21, 2004 |
| 6676849 |
Low yellowing scorch inhibitor composition |
Jan. 13, 2004 |
| 6660781 |
Process for preparing polyurethane foam |
Dec. 9, 2003 |
| 6660783 |
Preparation of highly resilient polyurethane foams |
Dec. 9, 2003 |
| 6596663 |
Catalyst composition |
Jul. 22, 2003 |
| 6586487 |
Low-density, water blown polyurethane foams for energy-absorbing applications |
Jul. 1, 2003 |
| 6534555 |
Catalyst systems for polyurethane polyester foams |
Mar. 18, 2003 |
| 6525107 |
Acid-blocked amine catalysts for the production of polyurethanes |
Feb. 25, 2003 |
| 6506811 |
Carbamate solutions |
Jan. 14, 2003 |
| 6458860 |
Advances in urethane foam catalysis |
Oct. 1, 2002 |
| 6433032 |
Process for rigid polyurethane foams |
Aug. 13, 2002 |
| 6420443 |
Additives for enhanced hydrocarbon compatibility in rigid polyurethane foam systems |
Jul. 16, 2002 |
| 6387972 |
Process to enhance polyurethane foam performance |
May. 14, 2002 |
| 6380274 |
Catalyst compositions for the production of polyurethanes |
Apr. 30, 2002 |
| 6337355 |
Two-pack urethane foam composition |
Jan. 8, 2002 |
| 6335378 |
Process for rigid polyurethane foams |
Jan. 1, 2002 |
| 6153659 |
3-{N-[2-(N',N'-dimethylamino ethoxy)ethyl]-N-methylamino}propionamide for the production of polyurethanes |
Nov. 28, 2000 |
| 6121338 |
Process for rigid polyurethane foams |
Sep. 19, 2000 |
| 6077927 |
Process for coloring polymer resins and products thereof |
Jun. 20, 2000 |
| 6051527 |
Aminopropylbis(aminoethyl) ether compositions for the production of polyurethanes |
Apr. 18, 2000 |
| 6037496 |
3-{N-[2-(N',N'-dimethylamino ethoxy)ethyl]-N-methylamino}propionamide for the production of polyurethanes |
Mar. 14, 2000 |
| 5874483 |
Aminopropylbis (aminoethyl) ether compositions for the production of polyurethanes |
Feb. 23, 1999 |
| 5864002 |
Process for coloring polymer resins and products thereof |
Jan. 26, 1999 |
| 5844012 |
Process and composition for improving the cure of water-blown molded polyurethane foam |
Dec. 1, 1998 |
| 5840779 |
Catalysts which stabilize hydrohalocarbon blowing agent in polyurethane foam formulations |
Nov. 24, 1998 |
| 5770635 |
Polyol composition having good flow and formic acid blown rigid polyurethane foams made thereby having good dimensional stability |
Jun. 23, 1998 |
| 5756558 |
Hydroxyalkylbis(aminoethyl) ether compositions for the production of polyurethanes |
May. 26, 1998 |
| 5731398 |
Black colorant composition exhibiting low flairing |
Mar. 24, 1998 |
| 5688834 |
Catalysts which stabilize hydrohalocarbon blowing agent in polyurethane foam formulations |
Nov. 18, 1997 |
| 5674918 |
Polyisocyanate based polymers prepare from formulations including non-silicone surfactants and method for the preparation thereof |
Oct. 7, 1997 |
| 5616625 |
Reactive hot melt foam |
Apr. 1, 1997 |
| 5600019 |
Polyisocyanate based polymers perpared from formulations including non-silicone surfactants and method for the preparation thereof |
Feb. 4, 1997 |
| 5561171 |
Catalysts which stabilize hydrohalocarbon blowing agent in polyisocyanurate foam formulations during polymerization |
Oct. 1, 1996 |
| 5539007 |
Catalyst compositions for making polyurethane based on imidazoles and boron compounds |
Jul. 23, 1996 |
| 5523332 |
Processability of hydrocarbon blown, polyisocyanate based foams through use of a compatibilizing agent |
Jun. 4, 1996 |
| 5508314 |
Hydroxyl group-containing blowing catalyst compositions for the production of polyurethanes |
Apr. 16, 1996 |
| 5504125 |
Processability of hydrocarbon blown, polyisocyanate based foams through use of a compatibilizing agent |
Apr. 2, 1996 |
| 5478494 |
Polyol composition having good flow and formic acid blown rigid polyurethane foams made thereby having good dimensional stability |
Dec. 26, 1995 |
| 5470501 |
Processability of hydrocarbon blown, polyisocyanate based foams through use of a compatibilizing agent |
Nov. 28, 1995 |
| 5459221 |
Polyisocyanate compositions for the preparation of flexible polyturethane foams |
Oct. 17, 1995 |
| 5457137 |
Water blown, energy absorbing foams |
Oct. 10, 1995 |
| 5455283 |
Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture |
Oct. 3, 1995 |
| 5308882 |
Preparation of polyurethane foam without a tertiary amine catalyst |
May. 3, 1994 |
| 5269969 |
Method of stabilizing blends of melamine and polyols |
Dec. 14, 1993 |
| 5242953 |
Method of stabilizing blends of melamine and polyols |
Sep. 7, 1993 |
| 5216040 |
Rigid polyurethane foam and process for producing the same |
Jun. 1, 1993 |
| 5208268 |
Internal release agents, active hydrogen containing mixtures which contain such agents and the use thereof in a process for the production of molded products |
May. 4, 1993 |
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