Flame retardant resin

Eyrol 51 is a water-soluble Hquid containing about 21% phosphoms. It is made by a multistep process from dimethyl methylphosphonate, phosphoms pentoxide, and ethylene oxide. The end groups are principally primary hydroxyl and the compound can thus be incorporated chemically into aminoplasts, phenoHc resins, and polyurethanes. Eyrol 51, or 58 if diluted with a small amount of isopropanol, is used along with amino resins to produce a flame-retardant resin finish on paper used for automotive air filters, or for backcoating of upholstery fabric to pass the British or California flammabiHty standards. 

Flame-Retardant Resins. Flame-retardant resins are formulated to conform to fire safety specifications developed for constmction as well as marine and electrical appHcations. Resins produced from halogenated intermediates (Table 5) are usually processed at lower temperatures (180°C) to prevent excessive discoloration. Dibromoneopentyl glycol [3296-90-0] (DBNPG) also requires glass-lined equipment due to its corrosive nature. Tetrabromophthahc anhydride (TBPA) and chlorendic anhydride (8) are formulated with ethylene glycols to maximize fiame-retardant properties reaction cycle times are about 12 h. Resins are also produced commercially by the in situ bromination of polyester resins derived from tetrahydrophthahc anhydride... 

Methyl methacrylate (MMA), 16 227 Alfrey-Price parameters, 7 617t azeotropic mixtures with, 16 236t block copolymer synthesis, 7 647t C-2 routes to, 16 252-254 C-3 routes to, 16 246—252 C-4 routes to, 16 254—257 carbon monoxide in production of, 5 6 chain-transfer constants for, 16 284t comonomer with acrylonitrile, 1 451t cumene as feedstock, 8 156 in flame-retardant resin formulation,... 

A related methylphosphate/phosphonate oligomer has primary alcohol end groups, and can coreact with amino resins to form a water-resistant flame retardant resin finish on paper or on textile substrates. The application of this oligomer with a coreactant methylolmelamine on cotton upholstery fabric can enable furniture covered with this fabric to pass the Consumer Product Safety Commission s proposed cigarette ignition test. 

Masumoto, K., Ono Y., and Tsyneishi, H. 2004. Flame retardant and flame retardant resin composition containing the same. U.S. Patent 6,716,952. 

Chlorines Chlorinated paraffins Tris (dichloropropyl) phosphate, methyl pentachlorostearate, and other chlorinated phosphates Cycloaliphatic chlorine Chlorendic anhydride LDPE film and flexible PVC Urethane foam and topical fabric Polypropylene and nylon Reactive intermediate in making polyester and epoxy flame-retardant resins Amspec Chemical, Asahi Denka Kogyo, ICC Industries-Dover, Kettlitz Chemie, Lehmann Voss, OxyChem, Polytechs... 

Flame-retardant resin versus neat polymer. 

DER [Dow], TM for a series of epoxies including liquid resins, solid resins and solutions, flexible resins, and flame-retardant resins. 

G-431. [Solem Industries] Alumina trihydrate filler, flame retardant resin extender in plastics, latex, neoprene foam systems, wire and cable insulation, vinyl wall and floor coverings. 

Flame-retardant resins can be made using tetrabromobisphenol A as part of the prepolymer. When degraded at high temperatures, this compound releases halogen compounds, which trap the free radicals formed, thereby helping to queneh the flame. 

Immediate purging with natural, non-flame-retardant resin, mixed with 1% sodium stearate HOPE... 

Uses Flame retardant resin for potting, wet iay-up and prepreg iami-nates, adhesives, molding compds., coatings, for epoxy and phenoiic resins... 

Reofos 1840 Reofos 1886 flame retardant plasticizer, ABS/PC DIphenybresyl phosphate flame retardant plasticizer, cellulosics DIphenybresyl phosphab flame retardant plasticizer, coatings DIphenybresyl phosphab flame retardant plasticizer, PS DIphenybresyl phosphab flame retardant plasticizer, PVB DIphenybresyl phosphab flame retardant plasticizer, PVC DIphenybresyl phosphab flame retardant resin, coatings F-2200... 

Tetrabromobisphenot A flame retardant, resins Antimony pentoxide Paroii 10NR Paroii 45 Paroii 50 Paroii 53NR Paroii 58NR Paroii 140 Paroii 142 Paroii 142-A Paroii 142-LV Paroii 145 Paroii 145-A Paroii 150 Paroii 150-A Paroii 150-LV Paroii 150-LVA Paroii 152 Paroii 170 Paroii 170-HV Paroii 170-LV Paroii 170-T Paroii 1057 Paroii 1061 Paroi ... 

Uses Flame-retardant resin for elec, potting, encapsulation, and casting, high-pressure laminating, filament winding, and coatings flame retardant for thermoplastics and thermosets... 

As implied by Equation 14b, a polymer with multiple hydroxyl groups will react with pentavalent or trivalent phosphorous electrophiles to crosslink the polymer if a molar excess of the phosphorus compound is present. This was verified by Doughty, who found that phosphorous halide or sulfide/lignin reactions with a greater than 1/1 mole ratio produced insoluble products (183). If the number of moles of phosphorous compound are equal or less than the moles oflignin in the reaction, the soluble reaction product can be further reacted with mono and polyhydroxy compounds to produce flame retardant resins with film- forming capacity (185). 

Representatives of various industries [17] have examined some smoke depressants and flame retardant resins introduced by various US Companies in relation to US legislation. These include smoke suppressed polyvinylchloride (PVC) (BE Goodrich) and polyurethane (PU) foams (Mobay Chemical), and smoke suppressant additives from Climax Molybdenum, and Sherwin-Williams (molybdenum compounds), Solem Industries, and Alcoa Chemicals (aluminium trihydrates, for polypropylene (PP) and PVC), Dover Chemical Corp., (aromatic bromine compound for PP), and US Borax (zinc borate). 

Eventually, a bromoacrylate ester is obtained that can be polymerized and also imparts flame resistance by the bromine groups. However, bromine-based flame retardant resins are releasing hydrogen bromide during combustion, which is toxic and corrosive (83,84). 

Flame retardant resins have been prepared using the condensation product of [NP(0Ph)x(0C6H40H-4)2 x]n and formaldehyde as starting material. The... 

The Chisso Corporation of Osaka, Japan has patented a flame-retardant resin laminate that includes a layer of polyolefin containing ammoniiun pyrophosphate and a nitrogen-containing organic compound. The laminate generates hardly any black smoke or toxic gas and has excellent appearance, printability, weathering and scratch resistance (US 583052). 

E E enclosures made from flame-retarded resins are effective in preventing the ignition and spread of fire, in turn saving lives and the destruction of property. Numerous studies and a broad base of fire experience have demonstrated the value of flame retardants. Some of the conclusions that these studies point out are that, compared to plastics with no flame retardants, FR plastics ... 

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