| |
 |
|
Class Information
Number: 521/157
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 a c-c(=x)-xh or c-c(=x)-x-c(=x)-c- reactant wherein x is a chalcogen atom, e.g., carboxylic acid or anhydride, etc.
Description: Subject matter wherein a compound containing a C XH or C X C, (X is a chalcogen) group is reacted with a -N=C=X containing material.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7432311 |
Process for creating high internal phase polymeric emulsions |
Oct. 7, 2008 |
| 7230037 |
Method for mixing a polyol component and an isocyanate component |
Jun. 12, 2007 |
| 6956066 |
Polyimide foams |
Oct. 18, 2005 |
| 6897247 |
High internal phase polymeric emulsion composition |
May. 24, 2005 |
| 6391935 |
Viscoelastic polyurethane foams |
May. 21, 2002 |
| 6359023 |
Polyurethane prepolymer containing NCO groups |
Mar. 19, 2002 |
| 6201034 |
Biodegradable polymers, the production thereof and the use thereof for producing biodegradable moldings |
Mar. 13, 2001 |
| 6130309 |
Hydrophilic polyether polyurethanes containing carboxylic acid |
Oct. 10, 2000 |
| 6100359 |
Ablative polyurea foam and prepolymer |
Aug. 8, 2000 |
| 6046249 |
Dimensional stabilizing, cell opening additives for polyurethane flexible and rigid foams |
Apr. 4, 2000 |
| 6043290 |
Dimensional stabilizing, cell opening additives for polyurethane flexible foams |
Mar. 28, 2000 |
| 5919833 |
Open celled foam and method of making an open celled foam |
Jul. 6, 1999 |
| 5900440 |
Open celled low density foam and method of making such an open celled foam |
May. 4, 1999 |
| 5874484 |
Use of polyol mixtures in rigid and semi-rigid polyurethane foams |
Feb. 23, 1999 |
| 5786404 |
Open celled low density foam and method of making such an open celled foam |
Jul. 28, 1998 |
| 5770636 |
Open celled foam and method of making an open celled foam |
Jun. 23, 1998 |
| 5760098 |
Process for producing low-emission polyurethane moldings and composite bodies and their use |
Jun. 2, 1998 |
| 5721285 |
Thermal insulating foamed material and method of manufacturing the same |
Feb. 24, 1998 |
| 5616628 |
Process for the production of optionally cellular polyurethanes and/or polyurethane ureas |
Apr. 1, 1997 |
| 5527834 |
Waterproof plastic foam |
Jun. 18, 1996 |
| 5525644 |
Potted electrical components and methods of making the same |
Jun. 11, 1996 |
| 5523332 |
Processability of hydrocarbon blown, polyisocyanate based foams through use of a compatibilizing agent |
Jun. 4, 1996 |
| 5514726 |
Polymer foams with inherent nonflammability and thermal stability and methods of preparation thereof |
May. 7, 1996 |
| 5504125 |
Processability of hydrocarbon blown, polyisocyanate based foams through use of a compatibilizing agent |
Apr. 2, 1996 |
| 5489618 |
Process for preparing polyurethane foam |
Feb. 6, 1996 |
| 5470501 |
Processability of hydrocarbon blown, polyisocyanate based foams through use of a compatibilizing agent |
Nov. 28, 1995 |
| 5441993 |
Polyurethane foams |
Aug. 15, 1995 |
| 5393799 |
Process for rigid foams |
Feb. 28, 1995 |
| 5326903 |
Process for preparing isocyanates using sintered oxides |
Jul. 5, 1994 |
| 5278197 |
Soft, flexible polyurethane foam |
Jan. 11, 1994 |
| 5242954 |
Process for making cellular and microcellular polyurethane foams |
Sep. 7, 1993 |
| 5216039 |
Process for producing a foamed polymer endowed with high resistance to solvents and high temperature resistance |
Jun. 1, 1993 |
| 5179131 |
Process for the preparation of polyurethane foams employing polyol dispersions containing polyisocyanate polyaddition solids |
Jan. 12, 1993 |
| 5173517 |
Rigid polyurethane foam and heat insulator obtained therefrom |
Dec. 22, 1992 |
| 5155142 |
Process for preparing polyurea or polyurethane/urea foams |
Oct. 13, 1992 |
| 5153234 |
Flame-retardant, high-temperature resistant foams of polyimides |
Oct. 6, 1992 |
| 5147898 |
Process for producing a rigid foam |
Sep. 15, 1992 |
| 5093382 |
Preparation of foams using polyfunctional organic acids |
Mar. 3, 1992 |
| 5093457 |
Production of polyamide imides |
Mar. 3, 1992 |
| 5079271 |
Method for the preparation of polymeric foams |
Jan. 7, 1992 |
| 5075417 |
Polyester polyols from tall oil fatty acid, maleic anhydride, and aromatic polyester polyols |
Dec. 24, 1991 |
| 5047441 |
Rigid polyurethane foams prepared from polyvinyl acetate/allyl alcohol polyols, and process for making same |
Sep. 10, 1991 |
| 5025039 |
Process for the production of molded polyurethane foams and the molded foams obtained by this process |
Jun. 18, 1991 |
| 4975523 |
Manufacture of block polyester polyols, and polyurethanes derived therefrom |
Dec. 4, 1990 |
| 4954537 |
Internal mold release agent for use in polyurea rim systems |
Sep. 4, 1990 |
| 4950695 |
Reduction of firmness in flexible polyurethane foam by addition of monofunctional alcohols, polyesters, and polyethers |
Aug. 21, 1990 |
| 4897429 |
Aromatic polyester polyols from dimethyl terephthalate process residue and tall oil fatty acids |
Jan. 30, 1990 |
| 4888365 |
Isocyanate terminated quasi-prepolymers useful for preparing polyurethane/polyisocyanurate foams having low thermal conductivity |
Dec. 19, 1989 |
| 4880847 |
Thermoplastic polyurethane endowed with improved characteristics of resistance to heat distortion |
Nov. 14, 1989 |
| 4831076 |
Preparation of polymer polyols |
May. 16, 1989 |
|
|
|
