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Class Information
Number: 521/165
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 > Phosphorus containing reactant
Description: Subject matter wherein a phosphorus containing material is employed as a reactant.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6833434 |
Noctilucent polyurethane chips and methods of manufacturing the same |
Dec. 21, 2004 |
| 6380273 |
Process for producing flame-retardant flexible polyurethane foams |
Apr. 30, 2002 |
| 5981612 |
Production of flameproofed, rigid, isocyanate-based foams |
Nov. 9, 1999 |
| 5616628 |
Process for the production of optionally cellular polyurethanes and/or polyurethane ureas |
Apr. 1, 1997 |
| 5565274 |
Fire rated floor door and control system |
Oct. 15, 1996 |
| 5173515 |
Fire retardant foams comprising expandable graphite, amine salts and phosphorous polyols |
Dec. 22, 1992 |
| 5043360 |
Manufacture of polyurethane foam |
Aug. 27, 1991 |
| 4910231 |
Manufacture of polyurethane foam |
Mar. 20, 1990 |
| 4831062 |
Preparation of intumescent materials for coatings and building elements |
May. 16, 1989 |
| 4740527 |
Porous and non-porous intumescent masses |
Apr. 26, 1988 |
| 4670483 |
Flame retardant polyurethane compositions |
Jun. 2, 1987 |
| 4607063 |
Novel primary hydroxyl-containing phosphono-s-triazines as reactants in the production of polyurethanes |
Aug. 19, 1986 |
| 4542170 |
Intumescent flame retarded polyurethane compositions |
Sep. 17, 1985 |
| 4529742 |
Optionally foamed intumescent masses prepared from polyisocyanates, hydroxyl compounds and melamine phosphates |
Jul. 16, 1985 |
| 4505849 |
Polyol pre-mixture for making flame-retardant poly-urethane foam plastics |
Mar. 19, 1985 |
| 4407981 |
Flame retardant mixture for polyurethanes |
Oct. 4, 1983 |
| 4380593 |
Intumescent compositions |
Apr. 19, 1983 |
| 4369258 |
Polyurethane foam compositions and a process for making same using a melamine polyol |
Jan. 18, 1983 |
| 4367295 |
Intumescent compositions obtained by reacting polyisocyanates with phosphorus-containing products, polyesters and cyanuric acid and/or cyanuric acid derivatives |
Jan. 4, 1983 |
| 4342682 |
Intumescent flame retardant thermoplastic polyurethane elastomer compositions |
Aug. 3, 1982 |
| 4339357 |
Intumescent composition |
Jul. 13, 1982 |
| 4338412 |
Intumescent compositions obtained by reacting polyisocyanates, phosphorus-containing substances and aromatic hydroxy carboxylic acids on salts |
Jul. 6, 1982 |
| 4328321 |
Dialkoxy-phosphonyl-N-alkyl-formic acid amides and their use as additives for the production of polyurethane foams which are capable of being flame laminated and high frequency welded |
May. 4, 1982 |
| 4202779 |
Mixture of bis(2-hydroxyalkyl) N,N-di(lower alkyl)aminomethanephosphonates with polyols |
May. 13, 1980 |
| 4198490 |
Polyurethane foams from polyol reaction products of N-.alpha.-alkylols with polyols |
Apr. 15, 1980 |
| 4192927 |
Polyhydroxyl compounds containing phosphonormamidine groups |
Mar. 11, 1980 |
| 4145510 |
5-Substituted phosphonate hydantoins and derivatives thereof |
Mar. 20, 1979 |
| 4140660 |
Process of preparing a flame-retardant polyurethane and product produced therefrom |
Feb. 20, 1979 |
| 4123599 |
Foams from phenolic resins and isocyanates, and process for the manufacture thereof |
Oct. 31, 1978 |
| 4115298 |
Process for splitting up polyurethane waste into activated polyhydroxyl compounds |
Sep. 19, 1978 |
| 4112014 |
O,O'-Bis(hydroxyalkyl) N,N-di(lower-alkyl)aminomethane phosphonates |
Sep. 5, 1978 |
| 4107103 |
Polyurethanes produced from phosphorus containing flame retarding agents which are reactive with isocyanates |
Aug. 15, 1978 |
| 4107152 |
Polyurethanes produced from phosphorus containing flame retarding agents which are reactive with isocyanates |
Aug. 15, 1978 |
| 4102830 |
Diol-phosphonates as flame-retardants in polyurethane foam |
Jul. 25, 1978 |
| 4093809 |
5-Substituted phosphonate hydantoins and derivatives thereof |
Jun. 6, 1978 |
| 4077964 |
Carbamate-phosphonates, and process of preparation |
Mar. 7, 1978 |
| 4054543 |
Phosphorus-containing polyols as flame retardant agents for polyurethanes |
Oct. 18, 1977 |
| 4052487 |
Diol-phosphonates |
Oct. 4, 1977 |
| 4038198 |
Storage stable multicomponent mixtures useful in making aminoplasts, phenoplasts, and polyurethanes |
Jul. 26, 1977 |
| 4025470 |
Process for the production of flame-resistant, hard polyurethane foams |
May. 24, 1977 |
| 4003861 |
Melamine pyrophosphate as flame-retardant in polyurethane foam compositions |
Jan. 18, 1977 |
| 3994839 |
Urethane modified carbodiimide foams derived from flame retardant polyols |
Nov. 30, 1976 |
| 3989653 |
Diesters of tetrabromophthalic anhydride |
Nov. 2, 1976 |
| 3969437 |
Cyclic phosphorus esters |
Jul. 13, 1976 |
| 3943077 |
Fire retardant polyurethane foams |
Mar. 9, 1976 |
| 3936483 |
Organic polyisocyanates |
Feb. 3, 1976 |
| 3933695 |
Hydroxyalkenylsiloxane rigid poly urethane foam stabilizers |
Jan. 20, 1976 |
| 3932565 |
Polymeric bromine-containing phosphoramidate polyols |
Jan. 13, 1976 |
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