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Class Information
Number: 521/169
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 phosphorus containing reactant > Phosphorus reactant contains a -o-(c-c-o-)-group
Description: Subject matter whereinthe phosphorus reactant contains a-O-(C-C-O)- group.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7288577 |
Polyurethane foam containing flame retardant blend of non-oligomeric and oligomeric flame retardants |
Oct. 30, 2007 |
| 7122135 |
Blend of organophosphorus flame retardant, lactone stabilizer, and phosphate compatibilizer |
Oct. 17, 2006 |
| 6861452 |
Composition for production of flame-retardant flexible polyurethane foams |
Mar. 1, 2005 |
| 6593385 |
Halogen-free, pentane-blown, flame-retardant rigid polyurethane foam and a process for its production |
Jul. 15, 2003 |
| 6518325 |
Halogen-free, water-blown, flame-retardant rigid polyurethane foam and a process for its production |
Feb. 11, 2003 |
| 6472448 |
Halogen-free, flame-retardant rigid polyurethane foam and a process for its production |
Oct. 29, 2002 |
| 6319962 |
Hydrocarbon blown rigid polyurethane foams having improved flammability performance |
Nov. 20, 2001 |
| 6262135 |
Polyurethane foam containing a blend of monomeric and oligomeric flame retardants |
Jul. 17, 2001 |
| 5981612 |
Production of flameproofed, rigid, isocyanate-based foams |
Nov. 9, 1999 |
| 5958993 |
Fog reduction in polyurethane foam using phosphate esters |
Sep. 28, 1999 |
| 5728746 |
Process for the preparation of mixtures of oligomeric phosphoric acid esters and their use as flame-proofing agents for polyurethane foams |
Mar. 17, 1998 |
| 5556894 |
Flame resistant rigid polyurethane foams containing phosphorus and a halogen |
Sep. 17, 1996 |
| 5420167 |
Flame resistant rigid polyurethane foams containing phosphorus and a halogen |
May. 30, 1995 |
| 5385952 |
Flame resistant rigid polyurethane foams containing phosphorus and a halogen |
Jan. 31, 1995 |
| 5183830 |
Method for the preparation of highly elastic forms of reduced compression hardness having polyurethane groups |
Feb. 2, 1993 |
| 5173515 |
Fire retardant foams comprising expandable graphite, amine salts and phosphorous polyols |
Dec. 22, 1992 |
| 5147898 |
Process for producing a rigid foam |
Sep. 15, 1992 |
| 5041467 |
Method for production of particulate polymers |
Aug. 20, 1991 |
| 4963593 |
Flame retardant internally cured polyurethane foam having improved properties |
Oct. 16, 1990 |
| 4831062 |
Preparation of intumescent materials for coatings and building elements |
May. 16, 1989 |
| 4803230 |
Polyols-polyesters and use thereof in the production of polyurethane foams |
Feb. 7, 1989 |
| 4798872 |
Alkylene phosphonate acid ester polyols |
Jan. 17, 1989 |
| 4757093 |
Flame retardant melamine containing polyurethane foam |
Jul. 12, 1988 |
| 4738990 |
Fire resistant foam composed of predominantly amide and imide linkages |
Apr. 19, 1988 |
| 4697029 |
Phosphobrominated polyetherpolyols and processes for production thereof |
Sep. 29, 1987 |
| 4687788 |
Dimensionally stable urethane elastomers |
Aug. 18, 1987 |
| 4649163 |
Flame-retardant polyurethane foam and polyol composition therefor |
Mar. 10, 1987 |
| 4595711 |
Aromatic polyester polyols fluorocarbon compatibilized with ethoxylate propoxylate compounds for urethane and isocyanurate foams |
Jun. 17, 1986 |
| 4521547 |
Highly flame resistant rigid urethane-isocyanurate foam compositions |
Jun. 4, 1985 |
| 4458035 |
Polyurethane foam having a flame retardant oligomeric phosphate ester |
Jul. 3, 1984 |
| 4451425 |
Method for injection molding polyurethane using internal release agents |
May. 29, 1984 |
| 4431596 |
2-Hydroxy-2-phosphinyl ethanals and 1,2-dihydroxy-1,2 bisphosphinyl ethanes |
Feb. 14, 1984 |
| 4394330 |
Phosphonate derivatives of polyalkylene polyamines as flame retardants |
Jul. 19, 1983 |
| 4298709 |
Polyhydroxyl polyether compounds containing phosphorus and polymeric resins prepared therefrom |
Nov. 3, 1981 |
| 4272619 |
Process for the production of modified polyether polyols and their use in processes for the production of polyurethane plastics |
Jun. 9, 1981 |
| 4202946 |
Fire retardant polyurethanes prepared from hydroxy substituted aminomethanephosphonates |
May. 13, 1980 |
| 4199534 |
Poly (oxyorganophosphate/phosphonate) and process for preparing |
Apr. 22, 1980 |
| 4133846 |
Hydroxyl containing phosphates and polyphosphates |
Jan. 9, 1979 |
| 4072636 |
Process for preparing smoke-retardant polyisocyanurate foam |
Feb. 7, 1978 |
| 4067931 |
Flame retardant polyoxymethylene diphosphonates |
Jan. 10, 1978 |
| 4061697 |
Phosphorus containing flame retarding agents which are reactive with isocyanates |
Dec. 6, 1977 |
| 4061604 |
Flameproofing of plastics |
Dec. 6, 1977 |
| 4051082 |
Carbodiimide-isocyanurate foams modified with ethoxylated polyols |
Sep. 27, 1977 |
| 4036789 |
Polyurethane foams prepared from mixed polyalkylene glycol polyphosphorous compounds |
Jul. 19, 1977 |
| 4012463 |
Method of preparing stable condensation products using a Lewis acid catalyst and products thereof |
Mar. 15, 1977 |
| 4010144 |
Flame retardant phosphate ester derivatives of ortho novolaks |
Mar. 1, 1977 |
| 4010124 |
Process for flameproofing polyurethanes |
Mar. 1, 1977 |
| 4005034 |
Poly(haloethyl-ethyleneoxy) phosphoric acid ester polymers as flame retardant agents |
Jan. 25, 1977 |
| 4002580 |
Fire-retardant polyurethane |
Jan. 11, 1977 |
| 3998764 |
Reducing flammability of polyurethane foams with phosphorus compounds |
Dec. 21, 1976 |
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