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| Number | Title | Issue Date |
| 7288577 | Polyurethane foam containing flame retardant blend of non-oligomeric and oligomeric flame retardants A polyurethane foam can be flame retarded by the incorporation therein of a flame retardant blend that comprises: (a) a non-oligomeric non-halogenated organophosphorus flame retardant (e.g., a phosphate ester) that is adapted for use in a polyurethane foam formulati... | 10/30/2007 |
| 7160974 | Thermoplastically processable polyurethanes (TPU) with self-extinguishing properties, a process for their preparation and their use The present invention relates to thermoplastically processable polyurethane elastomers (TPU) with tensile strengths of >35 MPa (measured in accordance with EN ISO 527-3), with shrinkages of | 01/09/2007 |
| 7122135 | Blend of organophosphorus flame retardant, lactone stabilizer, and phosphate compatibilizer A flame retardant blend, suitable for incorporation into a polyurethane foam, comprises: an oligomeric organophosphourus flame retardant, preferably an organophosphate, having a phosphorus content of no less than about 10%; a benzofuran-2-one stabilizer; and a monom... | 10/17/2006 |
| 6861452 | Composition for production of flame-retardant flexible polyurethane foams The present invention provides a composition for flame-retardant flexible polyurethane foam comprising: (i) a polyol component; (ii) a polyisocyanate component; (iii) a halogen-free phosphate ester that meets the following conditions (a) to (d), and that contains at... | 03/01/2005 |
| 6593385 | Halogen-free, pentane-blown, flame-retardant rigid polyurethane foam and a process for its production The invention relates to a halogen-free, pentane-blown, flame-retardant rigid polyurethane foam, wherein oxalkylated alkylphosphonic acids are present as flame retardants. The invention further relates to a process for producing halogen-free, pentane-blow... | 07/15/2003 |
| 6518325 | Halogen-free, water-blown, flame-retardant rigid polyurethane foam and a process for its production The invention relates to a halogen-free, water-blown, flame-retardant rigid polyurethane foam, which comprises oxalkylated alkylphosphonic acids as flame retardant. The invention further relates to a process for producing halogen-free, water-blown, flame-... | 02/11/2003 |
| 6472448 | Halogen-free, flame-retardant rigid polyurethane foam and a process for its production The invention relates to a halogen-free, flame-retardant rigid polyurethane foam, wherein a combination of oxalkylated alkylphosphonic acids and ammonium polyphosphate is present as flame retardant, and to a process for its production. The invention also ... | 10/29/2002 |
| 6319962 | Hydrocarbon blown rigid polyurethane foams having improved flammability performance Rigid polyurethane or urethane modified polyisocyanurate foams having improved flame resistance are disclosed. The foams are prepared from a composition containing (a) an isocyanate, (b) an isocyanate reactive composition, (c) a hydrocarbon/water blowing ... | 11/20/2001 |
| 6262135 | Polyurethane foam containing a blend of monomeric and oligomeric flame retardants A flame retardant blend is disclosed that comprises: (a) a monomeric halogenated organic flame retardant that is adapted for use in a polyurethane foam formulation; and (b) an oligomeric organophosphate flame retardant having a phosphorus content of no le... | 07/17/2001 |
| 5981612 | Production of flameproofed, rigid, isocyanate-based foams The flameproofed, rigid, isocyanate-based foams, in particular rigid polyurethane and polyisocyanurate foams, are produced by reacting a) organic and/or modified organic polyisocyanates with b) at least one relatively high-molecular-weight compound containing at ... | 11/09/1999 |
| 5958993 | Fog reduction in polyurethane foam using phosphate esters A process for imparting flame retardancy to a polyurethane foam comprising the step of incorporating in said polyurethane foam 0.5-50.0 php of at least one flame-retardant phosphate ester is disclosed. Also disclosed is a flame-retardant polyurethane foam... | 09/28/1999 |
| 5728746 | Process for the preparation of mixtures of oligomeric phosphoric acid esters and their use as flame-proofing agents for polyurethane foams The invention relates to a process for the preparation of mixtures of oligomeric phosphoric acid esters of the formula (I) ##STR1## in which n is a number from 0 to 8, R1, R2, R3 and R7 are identical or differen... | 03/17/1998 |
| 5556894 | Flame resistant rigid polyurethane foams containing phosphorus and a halogen There is now provided a closed cell rigid polyurethane foam having improved flame resistance by empolying a combination of an organo-phosphorus compound having at least two isocyanate reactive hydrogens with a secondary or tertiary mono-halogenated alipha... | 09/17/1996 |
| 5420167 | Flame resistant rigid polyurethane foams containing phosphorus and a halogen There is now provided a closed cell rigid polyurethane foam having improved flame resistance by empolying a combination of an organo-phosphorus compound having at least two isocyanate reactive hydrogens with a secondary or tertiary mono-halogenated alipha... | 05/30/1995 |
| 5385952 | Flame resistant rigid polyurethane foams containing phosphorus and a halogen There is now provided a closed cell rigid polyurethane foam having improved flame resistance by empolying a combination of an organo-phosphorus compound having at least two isocyanate reactive hydrogens with a secondary or tertiary mono-halogenated alipha... | 01/31/1995 |
| 5183830 | Method for the preparation of highly elastic forms of reduced compression hardness having polyurethane groups A method for the preparation of highly elastic foams of reduced compression hardness and having urethane groups is disclosed, in which the reaction of the polyurethane-forming materials is carried in the presence of 0.01 to 5% by weight, based on the poly... | 02/02/1993 |
| 5173515 | Fire retardant foams comprising expandable graphite, amine salts and phosphorous polyols New particularly effective fire retardent elements based on foams and expandable graphite are characterized in that they additionally contain one or more components from the group consisting of phosphate-containing polyols, borates and amine salts.... | 12/22/1992 |
| 5147898 | Process for producing a rigid foam The present invention is a process for producing a rigid foam by reacting an active hydrogen compound containing an active hydrogen compound containing in its molecular structure a group of a neutralized salt or an alkoxide and a polyisocyanate compound i... | 09/15/1992 |
| 5041467 | Method for production of particulate polymers This invention relates to a method of producing particulate polymers. This production method is characterized in that a mixture of an isocyanate compound containing two or more isocyanato groups per molecule and a surfactant containing two or more hydroxy... | 08/20/1991 |
| 4963593 | Flame retardant internally cured polyurethane foam having improved properties Flexible polyurethane foam prepared from foam forming compositions of a polyether polyol, an organic isocyanate compound, a blowing agent, and a curing agent of a melamine derivative in an amount effective to rapidly cure the resultant foam and improve th... | 10/16/1990 |
| 4831062 | Preparation of intumescent materials for coatings and building elements New intumescent materials can be obtained by reacting polyisocyanates with phosphorus-containing condensation products containing at least two hydroxyl groups, and boron oxides and/or dehydration products of boric acid. They may be used for the production... | 05/16/1989 |
| 4803230 | Polyols-polyesters and use thereof in the production of polyurethane foams Halogen- and/or phosphorus-containing polyols-polyesters obtained by esterification and transesterification of the residues from the process for producing dimethyl terephthalate with a polyol at least 5% by weight of which is constituted by a glycol havin... | 02/07/1989 |
| 4798872 | Alkylene phosphonate acid ester polyols A process for preparing hydroxy phosphonic acid ester polyols by reacting an alkenyl phosphonic acid with an alkylene oxide and the reaction of the resulting hydroxy phosphonic acid ester polyols with polyisocyanates to form polyurethanes is described.... | 01/17/1989 |
| 4757093 | Flame retardant melamine containing polyurethane foam Compositions and methods for providing a flexible flame retardant polyether polyurethane foam prepared from foam forming components of a polyether polyol, an organic isocyanate compound, water, a liquid phosphorus ester in an amount of about 4 to 10 parts... | 07/12/1988 |
| 4738990 | Fire resistant foam composed of predominantly amide and imide linkages Disclosed is a process for the preparation of a polyamideimide semi-flexible foam wherein a foam precursor is first prepared by heating together a mixture of an organic polyisocyanate, an aromatic polycarboxylic compound and a catalyst comprising a cyclic... | 04/19/1988 |
| 4697029 | Phosphobrominated polyetherpolyols and processes for production thereof Phosphobrominated polyetherpolyols which contain in their molecule oxyalkylene radicals bound to phosphorus atoms in the phosphate or phosphonate state and 1,4-dioxy-2,3-dibromo-2-butylene radicals in which the ratio of the total number of oxyalkylene rad... | 09/29/1987 |
| 4687788 | Dimensionally stable urethane elastomers Urethane elastomers are prepared which have a percent linear dimensional change after being immersed in water of not greater than 0.80%.... | 08/18/1987 |
| 4649163 | Flame-retardant polyurethane foam and polyol composition therefor A polyol composition comprising (a) a polyether polyol with an average molecular weight of 2,000 to 10,000, (b) an adduct of a carboxylic acid having not less than 8 carbon atoms with ethylene oxide or both ethylene oxide and propylene oxide and (c) a diol with an ... | 03/10/1987 |
| 4595711 | Aromatic polyester polyols fluorocarbon compatibilized with ethoxylate propoxylate compounds for urethane and isocyanurate foams Polyol blend compositions are provided containing nonionic ethoxylate propoxylate compounds and aromatic ester polyols, especially phthalate polyester polyols, which blends are miscible with fluorocarbon blowing agents. These blends are suitable for react... | 06/17/1986 |
| 4521547 | Highly flame resistant rigid urethane-isocyanurate foam compositions Highly flame resistant rigid urethane-isocyanurate foams which meet the German B-1 rating are prepared from compositions containing blowing agent, polyester polyol derived from the residue of dimethyl terephthalate or terephthalic acid production, a phosp... | 06/04/1985 |
| 4458035 | Polyurethane foam having a flame retardant oligomeric phosphate ester Flame retardant oligomeric phosphate ester compositions having the structural formula: ##STR1## are prepared, wherein R is C1 -C10 alkyl or haloalkyl, R1 and R2 can be the same or different and are hydrogen... | 07/03/1984 |
| 4451425 | Method for injection molding polyurethane using internal release agents Hydroxylated lecithins are employed as mold release agents in the preparation of molded articles from polyurethane-forming compositions. Polyol compositions containing such mold release agents are also disclosed.... | 05/29/1984 |
| 4431596 | 2-Hydroxy-2-phosphinyl ethanals and 1,2-dihydroxy-1,2 bisphosphinyl ethanes This invention relates to novel substituted 2-hydroxy-2-phosphinyl ethanals of the general Formula I. ##STR1## to 1,2-dihydroxy-1,2-bisphosphinylethanes of the general Formula II ##STR2## to methods of making the same, to compositions containing... | 02/14/1984 |
| 4394330 | Phosphonate derivatives of polyalkylene polyamines as flame retardants Flame retardant phosphonate derivatives of polyalkylene polyamines are prepared having the structural formula: ##STR1## wherein R1, R2 and R5 can be the same or different substituted or nonsubstituted lower alkylene g... | 07/19/1983 |
| 4298709 | Polyhydroxyl polyether compounds containing phosphorus and polymeric resins prepared therefrom Polyhydroxyl polyether compounds containing at least one monomeric unit each of the formulae: ##STR1## are disclosed. Polymeric condensation resins are prepared by allowing the polyhydroxyl polyethers to react with polyfunctional chain-forming c... | 11/03/1981 |
| 4272619 | Process for the production of modified polyether polyols and their use in processes for the production of polyurethane plastics The present invention relates to a process for the production of modified polyether polyols by the radical polymerization of a mixture of acrylonitrile, styrene, a salt of an ,ଲ-unsaturated monocarboxylic or polycarboxylic acid containing a p... | 06/09/1981 |
| 4202946 | Fire retardant polyurethanes prepared from hydroxy substituted aminomethanephosphonates Bis(2-hydroxyalkyl) N,N-di(lower-alkyl)aminomethylphosphonates are described. These phosphorus-containing polyols can be incorporated into polyurethane foams to render the latter fire retardant. They have the advantage over closely related phosphorus-cont... | 05/13/1980 |
| 4199534 | Poly (oxyorganophosphate/phosphonate) and process for preparing Phosphorus containing flame retardants are prepared by a two step process having as essential steps: (1) reacting diorgano organophosphonate with reactant comprising phosphorus oxide reagent to yield a metaphosphate/phosphonate reaction product, and there... | 04/22/1980 |
| 4133846 | Hydroxyl containing phosphates and polyphosphates Novel esters of pentavalent phosphorus acid having the formula ##STR1## WHEREIN R and R' are haloalkyl containing from 2 to 6 carbon atoms and from 1 to 6 halogen atoms; n is an integer of from 1 to 3; each X is independently selected from hydrogen, ... | 01/09/1979 |
| 4072636 | Process for preparing smoke-retardant polyisocyanurate foam In a process for preparing a smoke-retardant polyisocyanurate foam by reacting an organic polyisocyanate in the presence of a blowing agent and an isocyanate-trimerization catalyst, an improvement is characterized in that the reaction is conducted in the ... | 02/07/1978 |
