Abstract: There is provided herein a flame retardant thermoplastic composition comprising: a. at least one thermoplastic polyester or polyamide; b. at least one brominated flame retardant; c. at least one metal phosphonate or phosphinate. There is also provided a method of making said flame retardant thermoplastic composition; and an article containing the thermoplastic polymer composition.

Abstract: A transparent, fireproof thermoplastic composition which is free from halogen compounds and includes a polyamide-block graft copolymer formed by a polyolefin backbone and, on average, at least one polyamide graft. The grafts are attached to the backbone by the radicals of an unsaturated monomer (X) that has a function capable of reacting with a polyamide, and the radicals of the unsaturated monomer (X) are attached to the backbone by grafting or co-polymerisation from the double bond thereof. The composition includes, as a weight percentage of the total composition: 90 to 99 wt % of the polyamide-block graft copolymer, and 1 to 10 wt % of metal salts of phosphoric acid.

Abstract: There is provided herein an antimony trioxide-free flame-retarded styrenic thermoplastic polymer composition comprising: (a) at least one styrenic thermoplastic polymer; (b) at least one brominated flame retardant, (c) at least one metal phosphonate; and, (d) at least one antidripping agent. There is also provided a method of making said flame retarded styrenic thermoplastic polymer composition; and, an article comprising the styrenic thermoplastic polymer composition.

Abstract: There is provided herein an aluminum methyl methylphosphonate in crystalline form wherein 90% of the aluminum methyl methylphoshponate has a particle size of less than 10 microns, and wherein the aluminum methyl methylphosphonate is obtained by the process of reacting aluminum hydroxide with dimethyl methylphosphonate in the presence of a catalyst.

Abstract: A flame-retarded thermoplastic composition including a graft copolymer containing polyamide blocks and composed of a polyolefin backbone and on average at least one polyamide graft, in which the grafts are attached to the backbone by the residues of an unsaturated monomer (X) having a function capable of reacting with a polyamide, the residues of the unsaturated monomer (X) are attached to the backbone by grafting or copolymerization from its double bond, wherein the composition includes: —between 60% and 70% by weight of the graft copolymer containing polyamide blocks, —between 22% and 28% by weight of poly(pentabromobenzyl acrylate), —between 4% and 8% by weight of a synergistic flame retardant chosen from antimony trioxide, derivatives of tin, of molybdenum and/or bismuth and also boron and zinc oxides, calcium borates, calcium sulphate and/or zinc stannate, between 0.5% and 5% by weight of organophilic treated clay.

Abstract: There is provided herein a flame retardant thermoplastic composition comprising: a. at least one thermoplastic polyester or polyamide; b. at least one brominated flame retardant; c. at least one metal phosphonate or phosphinate. There is also provided a method of making said flame retardant thermoplastic composition; and an article containing the thermoplastic polymer composition.

Abstract: A flame-retarded thermoplastic composition including a graft copolymer containing polyamide blocks and composed of a polyolefin backbone and on average at least one polyamide graft, in which the grafts are attached to the backbone by the residues of an unsaturated monomer (X) having a function capable of reacting with a polyamide, the residues of the unsaturated monomer (X) are attached to the backbone by grafting or copolymerization from its double bond, wherein the composition includes: —between 60% and 70% by weight of the graft copolymer containing polyamide blocks, —between 22% and 28% by weight of poly(pentabromobenzyl acrylate), —between 4% and 8% by weight of a synergistic flame retardant chosen from antimony trioxide, derivatives of tin, of molybdenum and/or bismuth and also boron and zinc oxides, calcium borates, calcium sulphate and/or zinc stannate, between 0.5% and 5% by weight of organophilic treated clay.

Abstract: A transparent, fireproof thermoplastic composition which is free from halogen compounds and includes a polyamide-block graft copolymer formed by a polyolefin backbone and, on average, at least one polyamide graft. The grafts are attached to the backbone by the radicals of an unsaturated monomer (X) that has a function capable of reacting with a polyamide, and the radicals of the unsaturated monomer (X) are attached to the backbone by grafting or co-polymerisation from the double bond thereof. The composition includes, as a weight percentage of the total composition: 90 to 99 wt % of the polyamide-block graft copolymer, and 1 to 10 wt % of metal salts of phosphoric acid.

Abstract: A flame-retarded styrene-containing polymer composition, which comprises a styrene-containing polymer, tris(2,4,6-tribromophenoxy)-s-triazine, 0.5-1.7 wt % antimony trioxide, and an anti-dripping agent. The bromine content of the composition is generally in the range between 8 and 18 wt %. Additional brominated flame retarding agents may also be included in the composition.

Abstract: There is provided herein a polyolefin polymer composition comprising a polyolefin polymer and a metal salt of alkyl alkylphosphonic acid of general formula (I) where X is a metal and R1 and R2 are the same or different linear or branched alkyls containing from one to about twelve carbon atoms, n is equal to the valency of the metal X which is in the range of from 1 to 4. There is also provided a method for making a polyolefin polymer composition comprising contacting at least one polyolefin polymer with at least one metal salt of alkyl alkylphosphonic acid and heating the mixture of polyolefin polymer and at least one metal salt of alkyl alkylphosphonic acid to above the melting temperature of the polyolefin polymer.

Abstract: There is provided, herein a wire and/or cable comprising (a) a conductor and (b) a covering comprising a brominated epoxy oligomer; and, a phosphate ester.

Abstract: Composition comprising fluoropolymers, such as polytetrafluoroethylene (PTFE), poly(hexafluoroethylene), poly(tetrafluoroethylene-hexafluoroethylene), and poly(tetrafluoroethylene-ethylene-propylene), which are dispersed in flame retardants, such as organic, bromine compounds and/or organic phosphorus compounds, and that consist of particles that comprise one or more fluoropolymers and flame retardants. The fluoropolymers may be enveloped by the flame retardant.

Abstract: There is provided herein a polyolefin composition comprising a polyolefin and a flame retardant effective amount of a solid phosphate ester of the general formula (1): wherein n has an average value of from about 1.0 to about 2.0 and X is a divalent arylene moiety bonded to both of the oxygen atoms of any one of hydroquinone, resorcinol, 4,4?-biphenol, bisphenol S, or bisphenol F, and wherein the phosphate ester is in the absence of halogen. There is also provided a method of making the polyolefin composition. This fire retardant polyolefin composition is particularly useful in polypropylene fiber and films and foams.

Abstract: The problem of lack of uniform dispersion of a fluoropolymer as a flame retardant additive to thermoplastic resins is solved by a dispersion of a fluoropolymer in a flame retardant which is then blended as particles with a thermoplastic resin in molten form. Furthermore, flame retardant precursors are reacted in the presence of a fluoropolymer to form a molten flame retardant mixed with the fluoropolymer in another aspect.

Abstract: A flame-retarded styrene-containing polymer composition, which comprises a styrene-containing polymer, tris(2,4,6-tribromophenoxy)-s-triazine, 0.5-1.7 wt % antimony trioxide, and an anti-dripping agent. The bromine content of the composition is generally in the range between 8 and 18 wt %. Additional brominated flame retarding agents may also be included in the composition.

Abstract: Composition comprising fluoropolymers, such as polytetrafluoroethylene (PTFE), poly(hexafluoroethylene), poly(tetrafluoroethylene-hexafluoroethylene), and poly(tetrafluoroethylene-ethylene-propylene), which are dispersed in flame retardants, such as organic, bromine compounds and/or organic phosphorus compounds, and that consist of particles that comprise one or more fluoropolymers and flame retardants. The fluoropolymers may be enveloped by the flame retardant.

Abstract: The present invention discloses a novel fire retardant composition that includes hexabromocyclododecane (HBCD) and an epoxy resin, including halogenated bisphenolic epoxy resins, halogenated phenol novolac epoxy resins, halogenated cresol novolac epoxy resins, halogenated resorcinol epoxy resins, halogenated hydroquinone epoxy resins, halogenated bisphenol A novolac epoxy resins, halogenated methyl resorcinol epoxy resins and halogenated resorcinol novolac epoxy resins, where the epoxy resin has an epoxy equivalent ranging from 150 to 800 g/eq. The addition of the epoxy resin improves heat stability of HBCD, allowing an increase in the processing temperature.

Abstract: A brominated epoxy oligomer of the formula ##STR1## having a molecular weight of least 3,000, useful as a flame retardant additive for polypropylene and ethylene propylene copolymers is described.

Abstract: Granular flame retardant agents are disclosed which incorporate halogenated organic flame-retardant compounds, without any binders. The granular agents may further contain desired additives and organic or inorganic flame-retardant synergistic materials. The granular agents are dust-free and are usefully employed in a method for imparting flame-retardant properties to flammable plastic materials. A process for the preparation of the granular flame retardant agents of the invention by cold compaction is also described.

Abstract: The present invention relates to fire retardant polymer compositions obtained by the blending of monomeric N-tribromophenylmaleimide, as a fire retardant additive with a polymer. The preferred amount of bromine in the composition is above 0.5% by weight thereof. The polymer is selected from styrenic polymers and copolymers, polyolefine, rubbers, epoxy resins, plasticized PVC and polyurethane. If desired, one or more additional fire retardant(s) may be incorporated in the composition. Optionally, synergistic fire retardant additives such as antimony oxide, or organo-phosphorus compounds are also incorporated. The flame retardant polymer compositions have improved properties compared with those obtained with known flame retardant reagents. It was also unexpectedly found that the fire retardant additive provides to the polymer composition stability against ultraviolet light irradiation.