Abstract: A rubber compound based on propylene-oxide rubber SKPO, including sulfur, stearic acid, zinc oxide, thiuram disulphide, carbon black P-803. The compound is characterized by replacement of 2-mercaptobenzothiazole (kaptax), as well as fluoroplastic F-4, with dibenzothiazyl disulfide (altax), phenyl-?-naphthylamine (neozone D), dibutoxyethyl adipate, and ultrafine polytetrafluoroethylene (UPTFE). Such replacement of ingredients allows for significant improvement of wear resistance, frost resistance, and relative elongation. Additionally, relatively less UPTFE (compared to fluoroplastic F-4) can be used to achieve similar beneficial results, significantly reducing the cost of manufacturing the material.

Abstract: A vinyl chloride-based resin emulsion obtained by using a vinyl chloride-based polymer emulsion, which is obtained by subjecting a vinyl chloride monomer (B) or a monomer mixture comprising a vinyl chloride monomer (B) and an ethylenically unsaturated group-containing monomer (C) to emulsion polymerization in the presence of (A) a styrene-acrylic acid ester oligomer and/or an acrylic acid ester oligomer, as a seed (D), and subjecting a vinyl chloride monomer (E) or a monomer mixture comprising a vinyl chloride monomer (E) and an ethylenically unsaturated group-containing monomer (F) to emulsion polymerization using the seed (D). This vinyl chloride-based resin emulsion exhibits excellent water resistance, moisture resistance, high gloss and alcohol resistance if used in a water-based ink and exhibits excellent color development properties, water resistance, moisture resistance, color visibility, high gloss and release properties if used in a recording paper.

Abstract: A flame-retardant composition having (a) a copolymer comprising at least about 50 wt. % of propylene-derived units, and about 5-35 wt. % of units derived from at least one of ethylene or a C4-10 alpha-olefin, wherein the copolymer has a heat of fusion of about 75 J/g or less; and (b) a flame retardant, wherein the composition satisfies the requirements of UL94 with a V2 rating.

Abstract: Polymeric substrates, for example polyolefins such as polypropylene, can be made flame retardant by the incorporation therein of a synergistic mixture of (i.) at least one compound selected from the group consisting of nitroxyl stabilizers, hydroxylamine stabilizers, nitrone stabilizers, substituted hydroxylamine stabilizers, amine oxide stabilizers, benzofuranone stabilizers, phosphite and phosphonite stabilizers, quinone methide stabilizers and monoacrylate esters of 2,2?-alkylidenebisphenol stabilizers and (ii.) at least one compound selected from the group consisting of brominated flame retardants, phosphorus containing flame retardants and inorganic flame retardants such as ammonium polyphosphate or decabromodiphenyl oxide; wherein the amount of organic or inorganic flame retardant of component (ii.) required to achieve an acceptable level of flame retardancy is significantly reduced compared to that needed when component (i.) is not present.

Abstract: The present invention relates to solutions and/or dispersions of organic semiconductors in a solvent mixture of at least two different organic solvents, characterized in that A. Each of the solvents on its own has a boiling point of below 200° C. and a melting point of 15° C. or less, B. at least one of the solvents has a boiling point in the range from greater than 140 to less than 200° C., C. the solvents used have no benzylic CH2 or CH groups, D. the solvents used are not benzene derivatives containing tert-butyl substituents or more than two methyl substituents, and their use in printing processes for producing layers of organic semiconductors, especially for the electronics industry.

Abstract: The instant invention pertains to a thermoplastic organic polymer containing a conventional flame retardant and a hydroxylamine ester, in particular a tetraalkyl piperidine hydroxylamine ester. Further aspects of the invention are the use of hydroxylamine esters as flame retardants and a method for improving flame retardancy of a thermoplastic organic polymer.

Abstract: The invention relates to thermoplastic molded masses, comprising A) 10 to 97 wt. % of at least one thermoplastic polyester, B) 1 to 30 wt. % of a flame-resistant agent combination with, based on 100 wt. % B), b1) 20 to 99 wt. % of a halogenated flame resistant agent, b2) 1 to 80 wt. % of a antimony oxide, C) 0.01 to 3 wt. % of at least one polyamide, D) 0.01 to 2 wt. % of at least one nigrosin, E) 0.01 to 3 wt. % of at least one anti-dripping agent and F) 0 to 70 wt. % of further adjuncts, whereby the sum of components A) to F) is 100%.

Abstract: A flame retardant formulation which is the combination of at least (1) at least one bromine-containing polyol flame retardant formed from the reaction of (a) tetrabromophthalic anhydride, (b) an aliphatic polyol, and (c) an epoxide, and (2) at least one aliphatic diester of an alkane dicarboxylic acid, with the proviso that the formulation has a viscosity at 25° C. of about 20,000 cps or less, and a bromine content of at least about 40 wt %. A flame retardant compound formed from A) tetrabromophthalic anhydride; B) diethylene glycol; C) at least one alpha-omega alkane diol, or at least one alpha-omega alkane diol and at least one aliphatic monool; and D) at least one alkylene oxide; with the proviso that the compound has a viscosity at 25° C. of about 60,000 cps or less, and a bromine content of at least about 43 wt %. Polymer compositions formed from (a) a polyurethane or a polyisocyanurate and (b) a formulation of the invention.

Abstract: Non-asbestos elastomeric insulating materials for solid propellant rocket motors are disclosed. The insulating materials are composed of EPDM rubber, polyaramide fiber, liquid EPDM rubber, magnesium hydroxide or aluminum hydroxide, silicon dioxide, chlorinated flame retardant compound and zinc hydroxystannate. The char forming organic fiber is used to substitute asbestos in traditional insulating materials that are believed to cause serious environmental problems. These fillers in the formulation, which when combined, have a synergistic effect that reduces the ablation rate significantly. Also, use of zinc hydroxystannate to substitute Sb2O3, may further reduce density of the insulator and smoke density and smoke toxicity of exhausted gas from the rocket motor.

Abstract: Flame-retarded transparent plastic compositions comprising polyhalgenated trimethylphenyl indan. The polyhalogenated trimethylphenyl indan is a mixture of polyhalogenated trimethylphenyl indanes having each 3 to 9 halogen atoms. The halogen may be bromine or a mixture of bromine and chlorine. The transparent plastic is selected from polycarbonate, polymethylmethacrylate, and polystyrene. The polyhalogenated trimethylphenyl indan is present in an amount of up to about 40% by weight. The transparent plastic flame-retarded material is prepared by mixing the plastic matrix with a flame-retardant effective amount of a polyhalogenated trimethylphenyl indan.

Abstract: The flame retardant additive compositions comprise (a) one or more bromocycloaliphatic flame retardants; (b) one or more bromoaromatic flame retardants; and (c) one or more synthetic zeolites. Flame retardant polymer compositions comprising at least one thermoplastic polymer such as HIPS with which has been blended, singly and/or in one or more combinations, a flame retardant amount of at least (a), (b), and (c) have a very desirable balance of properties.

Abstract: The flame retardant additive compositions comprise (a) one or more bromocycloaliphatic flame retardants; (b) one or more bromoaromatic flame retardants; and (c) one or more synthetic zeolites. Flame retardant polymer compositions comprising at least one thermoplastic polymer such as HIPS with which has been blended, singly and/or in one or more combinations, a flame retardant amount of at least (a), (b), and (c) have a very desirable balance of properties.

Abstract: Flame-retarded transparent plastic compositions comprising polyhalgenated trimethylphenyl indan. The polyhalogenated trimethylphenyl indan is a mixture of polyhalogenated trimethylphenyl indanes having each 3 to 9 halogen atoms. The halogen may be bromine or a mixture of bromine and chlorine. The transparent plastic is selected from polycarbonate, polymethylmethacrylate, and polystyrene. The polyhalogenated trimethylphenyl indan is present in an amount of up to about 40% by weight. The transparent plastic flame-retarded material is prpared by mixing the plastic matrix with a flame-retardant effective amount of a polyhalogenated trimethylphenyl indan.

Abstract: A polyester-type resin composition which has sufficient anti-static property and flame-retardant property, in addition to maintaining mechanical strength and thermal resistance and which is useful for, in particular, electrical and electronic mechanical parts field. The flame-retardant anti-static polyester-type resin composition of the present invention comprises 100 parts by weight of a thermoplastic polyester (A), from 1 to 35 parts by weight of a bromine-type flame-retardant (B), from 0.1 to 5 parts by weight of an antimony compound (C) and from 3 to 12 parts by weight of conductive carbon black (D), wherein the Br/Sb weight ratio in said polyester-type resin composition is in a range from 5.5/1 to 35.0/1. Moreover, a reinforcing filler (E), a crystallizing accelerator (F) and a multifunctional compound (G) can be added in further to the said polyester-type resin composition.

Abstract: Flame retardants comprising oligomeric bromine-containing compounds comprising aryl groups that are connected by aliphatic chains are described. Flame retardant compositions comprising the flame retardants of the present invention and flame retardant aids are also described. Polymeric compositions comprising the flame retardants of the present invention optionally combined with a flame retardant aid, along with a method of fireproofing a material, are further described.

Abstract: Materials not releasing gaseous organic materials during use are used as a dry-type sealing material such as a gasket disposed upon mounting an air filter to an opening of a ceiling or the like, a wet-type sealing material filled and used in a gap for connecting wall materials or partitionings, a vinyl chloride sheet or a vinyl chloride cloth as a facing material for walls and floors. Specifically, a carboxylic acid ester having a molecular weight of not less than 400 is used as a plasticizer, a phenolic compound having a molecular weight of not less 300 is used as an antioxidant, an aliphatic hydrocarbon having not less than 19 carbon atoms (for example, microcrystalline wax) is used as a lubricant, and an alkylamine ethylene oxide adduct having a molecular weight of not less than 350 is used as an antistatic agent.

Abstract: Novel fire retardant compounds are disclosed, which are poly-halogenated TMPI and MPI compounds containing three or more halogen atoms per molecule. A process for the preparation of these compounds and polymeric compositions containing them are also described.

Abstract: This invention relates to polyamide-based formulations flame retarded with synergized brominated flame retardants and having good thermal stability.

Abstract: This invention relates to compositions containing improved granulated hexabromocyclododecane flame retardant products, flame retardant formulations containing products, and to a process for forming the improved granulated flame retardant products, wherein the granulated product is characterized as having a friability loss of less than about 8 percent.

Abstract: The invention relates to the use of nucleus-brominated phthalic acid derivatives, optionally in combination with polyalkylene oxides corresponding to formula (V) ##STR1## in which R is H, C.sub.1-6 alkyl, tetrahydropyranyl or a silyl group,R' is H or C.sub.1-6 alkyl andx is an integer of 1 to 100,for stabilizing thermoplastic polycarbonates against the effect of .gamma.-rays.

Abstract: A flame retardant resin composition which includes 100 weight parts of a rubber-reinforced styrene-based resin, 2.about.35 weight parts of an epoxy-oligomer of tetrabromobisphenol-A (A1), 2.about.35 weight parts of bis-(tribromophenoxy)ethane (A2), 1.about.15 weight parts of antimony trioxide (B), and 0.1.about.10 weight parts of chlorinated polyethylene (C), wherein the total of the above (A1), (A2), (B) and (C) are 8.about.50 weight parts and the weight ratio of (A1)/(A2) is 10/90.about.75/25. The composition of the present invention has well-balanced flame retardance and impact resistance.

Abstract: A roofing system incorporates a fire resistant asphalt composition comprising a thermoplastic elastomer modified bitumen, a filler, a brominated diphenyl ether, antimony oxide, and zinc borate. The asphalt composition is utilized with and impregnated into at least one layer of fiberglass or polyester mat. Preferably at least two layers are utilized wherein an upper layer is a fiberglass mat and a lower layer is a polyester mat, both mat layers being impregnated with the composition. In its preferred formulation, the asphalt composition comprises, in weight percent, about 30% to 90% bitumen, about 4% to 16% styrene-butadiene-styrene copolymer, about 10% to 40% filler, and up to about 20% each of the brominated diphenyl ether, the antimony oxide, and the zinc borate. The preferred brominated diphenyl ether is decabromodiphenyl ether.

Abstract: The impact strength of articles made from a flame-retarded formulated ABS resin containing an impact modifier is increased by forming a concentrate or masterbatch containing the flame retardant and impact modifier, blending the concentrate with ABS resin and extruding the resultant blend.

Abstract: A thermoplastic polycarbonate molding composition which is rendered resistant to deterioration induced by exposure to gamma radiation is disclosed. The composition is imparted an improved degree of color stability upon the incorporation of a minor amount of a poly(alkylene oxide) oligomer and a halogenated aromatic acid derivative therewith. In addition, the composition is characterized by its low initial color and the small change in its yellowness index after a waiting period of several weeks.

Abstract: A flame retardant polypropylene based formulation which contains polypropylene and a flame retardant amount of decabromodiphenyl oxide and a polybrominated cycloalkane having an 8 to 12 carbon atom ring and at least 4 ring-attached bromine atoms.

Abstract: Flame retardant compositions are provided containing at least one ester of a polyhaloaromatic acid and at least one polyolefin resin. The compositions may also contain one or more brominated and/or chlorinated compounds to provide additional flame retardancy, and other resins or engineering thermoplastics may be blended with the polyolefin. In addition to providing flame retardancy, the polyhaloaromatic acid esters are effective as processing and compatibilizing aids for the resin, and may also function as tackifiers, mold release agents, plastisole, adhesives, plasticizers, polymer additives, and aids in preventing melt fracture.

Abstract: A flame-retardant polypropylene composition comprises a modified polypropylene-based polymer, antimony oxide or sodium antimonate, and a halogenated organic compound or, in lieu thereof, a phosphorous-containing compound. The polypropylene-based polymer is modified in the presence of a free-radical generator source which typically is an organic peroxide so that it has a narrow polydispersity range, improved flow, and lower compounding and molding temperatures so that temperature-sensitive components are protected from thermal degradation. The modification of the polypropylene-based polymer generally occurs in situ in the processing apparatus and the composition can also contain various fillers, fibers, and the like.

Abstract: A process for the preparation of flameproofed polystyrene whicha) contains halohydrocarbons as flameproofing agents and which additionally contains one or more agents from the group ofb) synergists for the flameproofing agent,c) stabilizers,d) antioxidants ande) additivesby mixing polystyrene with one or more of agents a) to e) in a plurality of stages, wherein in a first stage the flameproofing agent a) and the entire amount or a proportion of the stabilizers c) are premixed at up to 100.degree. C. in a mixing apparatus and this premix is then, in a second stage, mixed with the other agents, in a continuously operated single-screw or twin-screw extruder or a kneader of conventional construction, in such a manner that, viewed in the conveying direction of the extruder, first the premix, with or without other agents, is continuously fed in and thereafter, in the further mixing zones, a melt of a polystyrene resin, which has been substantially freed from monomers and solvents and is at from 200.degree. to 250.

Abstract: A process for dispersing one or more powdered ignition resistant or flame retardant additives into carbonate polymers which comprises the steps of preparing a base concentrate having about 5 to about 50 weight per cent of said additives by blending said additives with a carbonate polymer having a melt flow rate from about 3 to about 20, pelletizing said base concentrate having said ignition resistant additive dispersed therein, dry blending said concentrate pellets with carbonate pellets having a melt flow rate from about 1 to about 80 whereby said polymer/concentrate blend has an amount of said additive dispersed therein effective to render said blend ignition resistant, and pelletizing or molding said carbonate polymer/concentrate blend. The use of this method gives ignition resistant carbonate polymers with improved impact properties as measured by Izod impact tests.

Abstract: The novel compound 5,6,7,8-tetrabromo-1,2,3,4-tetrahydro-naphthalene (tetrabromotetralin) of the formula: ##STR1## was prepared using 1,2,3,4-tetrahydro-naphthalene as the starting compound. Tetrabromotetralin was employed to prepare flame-retardant plastic compositions.

Abstract: This invention relates to a styrenic polymer-based thermoplastic formulation containing a brominated cycloaliphatic flame retardant and a thermal stabilizer system comprising an organotin stabilizer, a hindered phenolic antioxidant and, optionally, a polyhydroxy aliphatic compound.

Abstract: The invention relates to mixtures of polyarylene sulfides (PAS), preferably polyphenylene sulfide (PPS), and pyrenes. The mixtures show reduced radical formation under highly accelerated weathering conditions (UV irradiation).

Abstract: This invention relates to a flame retardant for synthetic fiber substrates and a method of imparting flame resistance to such substrates using the flame retardant. The flame retardant of this invention comprises 75 to 95 weight parts of a hexabromocyclododecane compound having a melting point not less than 195.degree. C. and 25 to 5 weight parts of a hexabromocyclododecane compound having a melting point less than 160.degree. C., which hexabromocyclododecane compounds are available on bromination of trans-trans-cis-cyclododecatriene. This flame retardant imparts excellent flame resistance to synthetic fiber substrates. Moreover, when a synthetic fiber substrate is dyed using a dye bath containing this flame retardant and a dye, the soiling of the substrate and dyeing equipment is kept at the minimum.

Abstract: Flame retardant compositions comprise linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a minor quantity, relative to the polymer, of certain flame retardants containing an organo halide.

Abstract: Disclosed is a colored polarizing film having excellent durability which comprises (a) an organic polymer film or sheet and (b) at least one dichroic dye having an azo, anthraquinone, thioindigo, perylene or phthalone structure containing no water-soluble group. Also disclosed is a method of making a colored polarizing film using an organic polymer film or sheet formed of a polyamide or polyester resin, which comprises the steps of (a) blending (preferably, dry blending) a dichroic dye with the resinous polymer in advance, (b) melting the resulting blend and forming it into a film, and then (c) stretching the film in at least one direction.

Abstract: UV stable, impact resistant, flame retarded thermoplastic compositions are obtained by compounding ABS with aliphatic resin, Diels-Alder adduct of 2 moles of chlorocyclopentadiene and 1 mole of cyclooctadiene (commonly known as Dech Plus), antimony oxide and optionally with nitrile rubber and/or surfactant. Such compositions consist essentially by weight of from about 0.5 to about 10% of aliphatic resin, from 0% to about 5% nitrile rubber, from 0% to about 5% surfactant, from about 14% to about 30% Dech Plus, from about 4% to about 20% antimony oxide and from about 50% to about 80% ABS. The ABS constituent has an Izod Impact Strength of at least 1.5 foot-pounds per inch; the amounts of said aliphatic resin, said nitrile rubber and said surfactant being such as to provide an Izod Impact Strength in foot-pounds per inch of notch determined by ASTM D-256, of at least 2.0 in the thermoplastic composition.

Abstract: UV stable, impact resistant, flame retarded ABS compositions are obtained by compounding ABS with nitrile rubber, surfactant, Diels-Alder adduct of 2 moles of chlorocyclopentadiene and 1 mole of cyclooctadiene (commonly known as Dech Plus) and antimony oxide. Such compositions consist essentially by weight of from about 1% to about 9% nitrile rubber, from about 0.3% to about 5% surfactant, from about 14% to about 30% Dech Plus, from about 4% to about 20% antimony oxide and from about 50% to about 80.9% ABS. The ABS constituent has an Izod Impact Strength of at least 1.5 foot-pounds per inch. The nitrile rubber is preferably acrylonitrile-butadiene copolymer containing by weight from about 15 to about 50% acrylonitrile component, and the surfactant is preferably siloxane-oxyalkylene copolymer. The compositions have Izod Impact Strengths ranging from 2.0 to 4 foot-pounds per inch and in most cases a V-O (UL94) flammability classification.

Abstract: There have been provided hard-to-combustion property impartation agents for polyester fibers. The agent is prepared by dissolving an alkyl cyclohexane containing bromine atoms in a solvent and dripping the solution into a liquid to provide an emulsion or dispersion of alkyl cyclohexane containing bromine.

Abstract: The present invention provides flame retardant resin compositions containing thermoplastic polyesters, organic halides and sodium antimonate, characterized in that the sodium antimonate has a ratio of the peak intensity of X-ray diffraction from face distances d of 5.25.about.5.35 (.ANG.) to that of 2.64.about.2.66 (.ANG.) being 1.5 or higher and mean particle diameter of 0.5.about.50 .mu.m, and is 1.about.15 parts by weight in proportion to 100 parts by weight of the aformentioned thermoplastic polyester. This invention provides thermoplastic resin compositions excellent in mechanical properties, hygroscopicity and thermal stability.

Abstract: Normally combustible thermoplastic polyolefins such as polystyrene and polypropylene may be flame retarded without discoloration utilizing a flame retardant additive mixture comprising hexabromocyclododecane and one or more bis-(polybromophenoxy)ethane.

Abstract: Disclosed is a flameproofing synthetic fiber comprising a halogenated cycloalkane and at least one member selected from phosphorus compounds represented by the following general formulae (I) through (IV): ##STR1## According to the present invention, the flameproofing synthetic fiber which is excellent in flameproofing property and feeling and significantly improved in spinning property and corrosion protective property can be provided. Furthermore, the foaming during operation and the passing processability through a stuffing crimper are also extremely improved.

Abstract: Derivatives of diphenylhexafluoropropane having the formula: ##STR1## where R is an unsubstituted or substituted alkylene, an epoxy, a silyl or alkoxysilyl group; and where X and Y are hydrogen or halogen. The derivatives are useful in formulating polymer structures.

Abstract: The invention relates to base polyolefin compositions, and concentrates thereof adapted to be let down or diluted by addition of further polyolefin, flameproofed by incorporation therein of an organohalo flame-retardant and a metal oxide or sulfide synergist, are rendered resistant to exudation by incorporating therein the combination of an epoxy resin, an elastomeric resin, and a nucleating agent, the epoxy resin being present in an amount of from about 0.01 to about 10 percent, the elastomeric resin being present in an amount of from about 0.1 to about 20 percent, and the nucleating agent being present in an amount of from about 0.1 to about 10 percent and non-fogging molded products obtained thereby.

Abstract: A glass-reinforced, fire-retardant, arc-track resistant polyamide composition characterized in that it contains:(a) at least 35% by weight of a fibre-forming polyamide,(b) 15% to 30% by weight of glass fibres or particulate fillers,(c) 17.5 to 27.5% by weight of melamine or melamine cyanurate,(d) 1 to 10% by weight of brominated fire retardants selected from a brominated polyphenylene oxide or a brominated epoxy resin, and(e) a synergist selected from zinc oxide, zinc borate, a mixture of zinc oxide and zinc borate and a mixture of antimony oxide and zinc borate, wherein the concentration of oxide present in the synergist is between 0 and 5%, the concentration of borate present is between 0 and 25% by weight, and the total weight of synergist is at least 1%, the weight percentages of the constituents (a), (b), (c), (d) and (e) totalling 100%.

Abstract: A reinforced, fire retardant, polyamide composition containing(a) at least 35% by weight of a fibre-forming polyamide,(b) 15 to 30%, by weight of glass fibres or particulate fillers,(c) 15 to 30%, by weight of melamine demi-sulphate,(d) at least 2.5%, by weight of a halogenated compound selected from the condensation product of 2 moles chlorocylopentadiene and 1 mole of 1,5-cyclooctadiene, brominated polystyrene, brominated polyphenylene oxide or a brominated epoxy resin, and(e) a synergist selected from at least one of zinc borate, zinc oxide and mixtures of antimony oxide and zinc borate, wherein the concentration of oxide present is between 0 and 5%, the concentration of zinc borate is between 0 and 25%, preferably between 2 and 15% by weight and the total weight of synergist is at least 1% by weight and wherein the weight percentages of the constituents total 100%.

Abstract: A glass-reinforced, fire-retardant, arc-track resistant composition characterized in that it contains:(a) at least 35% by weight of a fibre-forming polyamide,(b) 15 to 25% by weight of glass fibres,(c) 16-30% by weight of melamine cyanurate,(d) 2 to 7% by weight of the condensation product of 2 moles of chlorocyclopentadiene and 1 mole of 1,5-cyclooctadiene, and an amount of(e) a fire retardant synergist selected from antimony oxide, iron oxide and stannic oxide,to give a weight ratio of (d) to (e) between 1:1 and 5:1, and wherein the constituents of the composition total 100%.

Abstract: A granular flame retardant additive is provided comprising from 70 to 99.5% by weight of an organohalide flame retardant and from 0.5 to 30% by weight of thermoplastic synthetic resin as a binder. The additive is easy to handle and resistant to disintegration during transportation and mixing with fabricating resin pellets. Uniform distribution thereof in fabricated thermoplastic articles is achieved by simply co-feeding the granules and the fabricating resin to a fabricating machine.

Abstract: In accordance with this invention, the formation of bubbles in a composition of (a) ethylene polymer, (b) flame retardant system, and (c) peroxide is inhibited or eliminated by employing as the peroxide a halogenated organic peroxide.

Abstract: Polyamide compositions having improved flame retardant properties and arc tracking resistance comprises, in percent by weight, about 35 to about 76 percent polyamide; about 6 to about 10 percent zinc borate; about 10 to about 15 percent melamine cyanurate; 0 to about 35 percent glass fiber; about 0 to about 3 percent antimony trioxide; and about 8 to about 15 percent of a chlorinated compound of the formula: ##STR1##

Abstract: Polyamides, flame retarded with a halogenated derivative and blended with a polymer blend resin being at least partially incompatible and having a lower melt viscosity than the polyamide, to improve the arc tracking resistance of the polyamide, are disclosed. The polyamides are particularly useful in the manufacture of flame retarded electrical components.