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Class Information
Number: 521/162
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 > N=c=x reactant contains atoms other than carbon and hydrogen and other than nitrogen and chalcogen as part of the n=c=x group
Description: Subject matter wherein the -N=C=X reactant contains atoms other than carbon and hydrogen and atoms other than nitrogen or chalcogen as part of the -N=C=X moiety.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5296518 |
Hydrophilic polyurethaneurea foams containing no toxic leachable additives and method to produce such foams |
Mar. 22, 1994 |
| 5093383 |
Polyurethane/urea foams from isocyanate prepolymers and isocyanate reactive imino/enamino functional reactants |
Mar. 3, 1992 |
| 4987213 |
Polyurethane and process for preparing same |
Jan. 22, 1991 |
| 4906674 |
Polysocyanate compositions |
Mar. 6, 1990 |
| 4751254 |
Process for in situ coloration of thermosetting resins |
Jun. 14, 1988 |
| 4616043 |
Aliphatic polyurethane sprayable coating compositions and method of preparation |
Oct. 7, 1986 |
| 4596835 |
Reinforced cellular or noncellular polyurethane molded parts |
Jun. 24, 1986 |
| 4454253 |
Polyurethane foam game ball, composition and process |
Jun. 12, 1984 |
| 4424288 |
Carbodiimide-modified polymethylene polyphenylene polyisocyanates for use in the preparation of polyisocyanurate-polyurethane foams |
Jan. 3, 1984 |
| 4409341 |
Composition for fire retardant urethane foam |
Oct. 11, 1983 |
| 4384052 |
Polyurethanes produced from an adduct of an organic polyisocyanate and certain amines |
May. 17, 1983 |
| 4346181 |
Method of reducing formaldehyde emissions from formaldehyde condensation polymers |
Aug. 24, 1982 |
| 4337333 |
Substituted polyisocyanate or polyisocyanate mixtures of the diphenyl methane series containing chlorosulfonyl groups |
Jun. 29, 1982 |
| 4330636 |
Carbamylbiuret-modified polyisocyanates |
May. 18, 1982 |
| 4322364 |
Modified isocyanate compositions |
Mar. 30, 1982 |
| 4276386 |
Diisocyanates having urea groups, a process for their preparation and their use in the production of polyurethanes |
Jun. 30, 1981 |
| 4276404 |
Process for the production of inorganic-organic synthetic materials |
Jun. 30, 1981 |
| 4271087 |
Carbamylbiuret-modified polyisocyanates |
Jun. 2, 1981 |
| 4254228 |
Method of making foamed resins with internal mold-release agents |
Mar. 3, 1981 |
| 4208486 |
Stabilization of organic amide solvents and polymer solutions thereof |
Jun. 17, 1980 |
| 4201847 |
Process of preparing foams with internal mold-release agents |
May. 6, 1980 |
| 4199524 |
Stable liquid carbodiimide-containing polyisocyanate compositions |
Apr. 22, 1980 |
| 4198487 |
Process for the production of inorganic-organic synthetic foam materials |
Apr. 15, 1980 |
| 4197374 |
Cellular products based on halocarboxylic acid-modified polyisocyanates |
Apr. 8, 1980 |
| 4194035 |
Modified polyisocyanates containing sulfonic acid ester groups |
Mar. 18, 1980 |
| 4192938 |
Modified polyisocyanates containing sulfonic acid ester groups |
Mar. 11, 1980 |
| 4190709 |
Mercury and copper selective metal chelating resins |
Feb. 26, 1980 |
| 4181770 |
Isocyanate-terminated branched polyethylene glycol and polyester polyurethane foams |
Jan. 1, 1980 |
| 4181782 |
Preparation of polyisocyanates having biuret groups and their use in synthetic foamed resins and lacquers |
Jan. 1, 1980 |
| 4148819 |
Aliphatic diisocyanates |
Apr. 10, 1979 |
| 4147714 |
Process for the preparation of polyisocyanates which contain biuret groups |
Apr. 3, 1979 |
| 4146509 |
Process for the production of inorganic-organic plastics |
Mar. 27, 1979 |
| 4129696 |
Process for the production of inorganic-organic plastic composites |
Dec. 12, 1978 |
| 4127599 |
Process for the preparation of polyisocyanates having biuret groups |
Nov. 28, 1978 |
| 4108807 |
Organo-metallate polymers and processes for the manufacture thereof |
Aug. 22, 1978 |
| 4105594 |
Highly filled polyurea foams |
Aug. 8, 1978 |
| 4101464 |
Process for preparing foamed solids using two or more azo compounds |
Jul. 18, 1978 |
| 4101465 |
A cocatalyst system for trimerizing isocyanates |
Jul. 18, 1978 |
| 4097422 |
Inorganic-organic compositions |
Jun. 27, 1978 |
| 4097423 |
Inorganic-organic compositions |
Jun. 27, 1978 |
| 4088665 |
Process for the partial carbodiimidization of organic isocyanates |
May. 9, 1978 |
| 4055548 |
Storage-stable liquid polyisocyanate composition |
Oct. 25, 1977 |
| 4055549 |
Thermoplastically processable polyurethanes based on tolylene diisocyanate |
Oct. 25, 1977 |
| 4043951 |
Acrylonitrile-capped polyether-siloxane |
Aug. 23, 1977 |
| 4043949 |
Oxidative stability of flexible polyurethane foams |
Aug. 23, 1977 |
| 4039483 |
Method of producing an ion exchanger by reacting unsaturated vulcanized or powdered rubbers with iodine isocyanate and then introducing ion exchange groups by further reaction |
Aug. 2, 1977 |
| 4038221 |
Process for the production of cold hardening foams containing urethane groups by in-mold foaming |
Jul. 26, 1977 |
| 4033912 |
Process for molding polyurethane foams |
Jul. 5, 1977 |
| 4024090 |
Process for molding polyurethane foams |
May. 17, 1977 |
| 4013701 |
Process for the production of polyisocyanates |
Mar. 22, 1977 |
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