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Class Information
Number: 521/160
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 > Two or more n=c=x reactants
Description: Subject matter wherein two or more -N=C=X (X is a chalcogen)containing materials are employed.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7364788 |
Fiber-filled molded articles |
Apr. 29, 2008 |
| 7339020 |
High-functionality polyisocyanates |
Mar. 4, 2008 |
| 7307136 |
Polyurethane elastomers |
Dec. 11, 2007 |
| 6960619 |
Foamable photo-polymerized composition |
Nov. 1, 2005 |
| 6884824 |
Process for preparing an elastomer |
Apr. 26, 2005 |
| 6858699 |
Polyurethane elastomers and processes for their preparation and use |
Feb. 22, 2005 |
| 6784217 |
Process for making high resilience foams |
Aug. 31, 2004 |
| 6774153 |
Process for preparing a free rise or slabstock flexible polyurethane foam |
Aug. 10, 2004 |
| 6727292 |
Manufacture of MDI-TDI based flexible polyurethane foams |
Apr. 27, 2004 |
| 6617369 |
Process for making visco-elastic foams, polyols blend and reaction system useful therefor |
Sep. 9, 2003 |
| 6593387 |
Process for making high resilience foams |
Jul. 15, 2003 |
| 6590005 |
Isocyanate compositions for blown polyurethane foams |
Jul. 8, 2003 |
| 6569913 |
Isocyanate-terminated prepolymers |
May. 27, 2003 |
| 6494977 |
Method for adhering decorative part to a vehicle |
Dec. 17, 2002 |
| 6482913 |
Liquid MDI adducts wtih improved freeze stability |
Nov. 19, 2002 |
| 6455601 |
Isocyanate compositions for blown polyurethane foams |
Sep. 24, 2002 |
| 6444777 |
PROCESS FOR PRODUCING COMPACT OR CELLULAR POLYURETHANE ELASTOMERS BASED ON 3,3' DIMETHYL DIPHENYL 4,4' DIISOCYANATE-CONTAINING POLYISOCYANATE MIXTURES AND ISOCYANATE PREPOLYMERS SUITABLE THERE |
Sep. 3, 2002 |
| 6420445 |
Polyurethane and polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties |
Jul. 16, 2002 |
| 6417241 |
Process for preparing a flexible polyurethane foam |
Jul. 9, 2002 |
| 6384177 |
Process for producing polyurethane and polyisocyanurate |
May. 7, 2002 |
| 6384097 |
Amine catalyst for producing rigid polyurethane foam |
May. 7, 2002 |
| 6362247 |
Method of improving stability of aromatic polycarbodiimides |
Mar. 26, 2002 |
| 6331577 |
Process for producing elastic polyurethane moldings with compact surfaces and cellular cores |
Dec. 18, 2001 |
| 6303669 |
Flexible polyurethane foam |
Oct. 16, 2001 |
| 6288134 |
Flexible polyurethane foams |
Sep. 11, 2001 |
| 6248856 |
One-shot polyurethane elastomers with very low compression sets |
Jun. 19, 2001 |
| 6248802 |
Isocyanate compositions for blown polyurethane foams |
Jun. 19, 2001 |
| 6242556 |
Liquid MDI adducts with improved freeze stability |
Jun. 5, 2001 |
| 6211258 |
Process for preparing rigid and flexible polyurethane foams |
Apr. 3, 2001 |
| 6187832 |
Process for making flexible polyurethane foams |
Feb. 13, 2001 |
| 6156864 |
Preparation of flexible polyurethane foams |
Dec. 5, 2000 |
| 6147134 |
Process for preparing rigid and flexible polyurethane foams |
Nov. 14, 2000 |
| 6114402 |
Modified rigid, foamable urethane composition and method |
Sep. 5, 2000 |
| 6100359 |
Ablative polyurea foam and prepolymer |
Aug. 8, 2000 |
| 6100311 |
Process for preparing rigid and flexible polyurethane foams |
Aug. 8, 2000 |
| 6096237 |
Polymeric MDI compositions for use in thermoformable foams |
Aug. 1, 2000 |
| 6090864 |
Polymeric MDI prepolymer composition and flexible foams prepared therefrom |
Jul. 18, 2000 |
| 6077456 |
Polymethylene polyphenyl polyisocyanate based prepolymers |
Jun. 20, 2000 |
| 6037382 |
Process for preparing a flexible polyurethane foam |
Mar. 14, 2000 |
| 6031010 |
Polyurethane foam composition having improved flex fatigue |
Feb. 29, 2000 |
| 6020391 |
Flexible polyurethane foams |
Feb. 1, 2000 |
| 6020390 |
Process for making flexible polyurethane foams |
Feb. 1, 2000 |
| 5916994 |
Polymer polyols and preparation thereof |
Jun. 29, 1999 |
| 5902459 |
Recovery of products from toluenediisocyanate residues |
May. 11, 1999 |
| 5900441 |
Process for preparing a flexible polyurethane foam |
May. 4, 1999 |
| 5889068 |
Water blown polyurethane soling systems |
Mar. 30, 1999 |
| 5877227 |
Low density flexible polyurethane foams |
Mar. 2, 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 |
| 5830926 |
Flame retardant polyurethane foams |
Nov. 3, 1998 |
| 5773483 |
Process for preparing a flexible foam |
Jun. 30, 1998 |
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