Abstract: There are described a spinnable polyester for producing fully oriented polyester yarn by high speed spinning based on polyethylene terephthalate modified by incorporation of aliphatic dicarboxylic acids as cocondensed units and which may additionally contain up to 5% by weight of further additaments customary for modifying polyethylene terephthalate, wherein modifying aliphatic dicarboxylic acids present as cocodensed units have in total from 4 to 10 carbon atoms and are present in such an amount that the glass transition temperature of the polyester is 70.degree. C. or below, the recrystallization temperature of the polyester is 180.degree. C. or below and the heat of fusion of the polyester, determined by DSC measurement, is 30 J/g or below, a polyester yarn producible therefrom by high speed spinning, which has a novel combination of high strength, high modulus and enhanced shrinkage capacity, and a process for producing this yarn.

Abstract: A fusible phenolic resin and a dialkyl-N,N-bis(hydroxyalkyl)aminoalkyl phosphonate are condensed to form a water-insoluble resin having fire retardant properties. Fire resistant materials are made by causing the condensation to occur in situ when a normally flammable material and the reactants are mixed and the mixture is heated at 250.degree. F. to 480.degree. F. Wooden articles such as molded hardboard roofing shingles of this invention do not lose their fire resistance after being soaked with rain repeatedly.

Abstract: A flame-retardant resin composition contains a prepolymer represented by the general formula: ##STR1## wherein R.sub.1 stands for a hydrogen atom or an unreactive saturated group; R.sub.2 stands for a reactive unsaturated group; m and n each stand for a positive number of 1 to 4 and X and Y are each a copolymerization ratio and are in the range of 0.3 to 0.7 with the proviso that the sum total of X and Y is 1,as an essential component.

Abstract: A fusible phenolic resin and a dialkyl-N, N-bis (hydroxyalkyl) aminoalkyl phosphonate are condensed to form a water-insoluble resin having fire retardant properties. Fire resistant materials are made by causing the condensation to occur in situ when a normally flammable material and the reactants are mixed and the mixture is heated at 250.degree. F. to 480.degree. F. Wooden articles such as molded hardboard roofing shingles of this invention do not lose their fire resistance after being soaked with rain repeatedly.

Abstract: A flame retardant comprising of spherical red phosphorus free of pulverized face which is directly produced in the form of fine powder by conversion of yellow phosphorus, without pulverizing process. The red phosphorus characterized by its surface state and shape entirely different from any prior pulverized red phosphorus has not only a high flame retarding ability, but also a superior combination of chemical and physical properties, particularly with regard to corrosion resistance, moisture resistance, mechanical strength and dielectric properties which make it highly valuable and useful as a flame retardant for various nonflammable resinous compositions used in electric articles including electronic parts, machines, automobiles and buildings. The flame retardant is desirably coated with thermosetting rein and/or hydroxide of aluminum and/or zinc, thereby greatly improved in its stability.

Abstract: This application discloses new compositions of matter useful as flame retardants for cellulosic materials comprising ammonium bromide and, at least, one water-soluble aluminum salt of an organic hydroxy acid, such as aluminum citrate or aluminum lactate.

Abstract: A flame retardant comprising of spherical red phosphorus free of pulverized face which is directly produced in the form of fine powder by conversion of yellow phosphorus, without pulverizing process. The red phosphorus characterized by its surface state and shape entirely different from any prior pulverized red phosphorus has not only a high flame retarding ability, but also a superior combination of chemical and physical properties, particularly with regard to corrosion resistance, moisture resistance, mechanical strength and dielectric properties which make it highly valuable and useful as a flame retardant for various nonflammable resinous compositions used in electric articles including electronic parts, machines, automobiles and buildings. The flame retardant is desirably coated with thermosetting resin and/or hydroxide of aluminum and/or zinc, thereby greatly improved in its stability.

Abstract: A flame-retardant composition is prepared by mixing 100 parts by weight of a rubber or plastics free from any halogen with about 50 to about 200 parts by weight of magnesium hydroxide having an average particle diameter of about 0.3 to about 2 .mu.m and about 5 to about 50 parts by weight of carbon black powder having an oil absorption of about 0.5 to about 2.0 ml/g, and then cross-linking the mixture with an organic peroxide, sulfur, or a sulfur compound as a vulcanizing agent. By forming an electrical insulation and/or a sheath of the flame-retardant composition, there is provided a flame-retardant cable of the type including a cable core composed of an electric conductor coated with the electrical insulation or a plurality of such cores twisted together and covered, together with a filler, with the sheath.

Abstract: Polybrominated higher alkylbenzenes may be produced by reacting the corresponding hydrocarbon material with bromine chloride in an excess bromine reaction medium in the presence of an antimony halide catalyst.

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: A latex copolymer composition is produced having good flame retardancy. The copolymer is typically made from vinylidene chloride monomers, conjugated diene monomers, vinyl substituted aromatic monomers, and functional monomers such as unsaturated mono or dicarboxylic acids. Through the use of flame retardant agents such as halogenated waxes, metallic salts, and the like, the pliability or softness, as well as the strength of the copolymer composition, can be controlled. Flexibilizing agents can optionally be utilized to abate cracking, especially after heat aging. The composition can optionally be pigmented. The flame retardant latex composition can be utilized as coatings on various substrates such as mats, fibers, and the like.

Abstract: Discoloration in aromatic carbonate polymers brought about by the addition of halogenated flame retardants is counteracted by the further addition of aliphatic polyester.

Abstract: Polymer systems can be rendered flame retardant by adding a source of halogen and particles of antimony pentoxide that have been dried from colloidal dispersions that have been treated with certain metal ions. The properties of the polymer are conserved when the colloidal dispersion is treated with ions of metals that have insoluble antimonates before drying to form a powder.

Abstract: Thermoplastic, flame-resistant copolymers comprised of an alkenyl aromatic compound, a bromine-substituted alkenyl aromatic compound, an .alpha.,.beta.-unsaturated monocarboxylic acid and a diene rubber are described. The copolymers are prepared by polymerizing the comonomers in solution. The copolymers are admixable with other materials, both polymeric and non-polymeric, and the resulting compositions can be molded into articles of various shapes and sizes which exhibit improved paint adhesion.

Abstract: A fire-retardant resin composition comprising(A) 100 parts by weight of a member selected from the group consisting of the thermoplastic resins and the thermosetting resins,(B) about 1 to about 50 parts by weight of a halogen-containing organic fire retardant,(C) about 0.05 to about 10 parts by weight of a hydrotalcite having a BET specific surface area not exceeding about 30 square meters per gram, as a stabilizer, and(D) 0 to about 20 parts by weight of a fire-retarding assistant other than the fire retardant of (B), above.

Abstract: Brominated styrene-maleate copolymer containing at least 50 weight percent bromine and its use as a fire retardant.

Abstract: Flame-retardant blends are provided comprising a particular type of aromatic-aliphatic copolyamide and a flame-retardant amount of an oligomeric or polymeric halogenated aromatic polycarbonate.The blends are characterized by being transparent and meeting the V-O rating when tested in accordance with the Underwriters Laboratories UL-94 vertical burn test.

Abstract: A fire-resistant polycarbonate composition comprising a polycarbonate and for each one thousand parts by weight thereof from about 0.1 to 10 parts by weight of a salt of the formula: ##STR1## in which R is a C.sub.1 to C.sub.6 alkyl radical or an aryl radical, unsubstituted or substituted aryl radical and M is an alkali metal selected from Li, Na, or K.

Abstract: A flame retardant for polyolefins, which comprises as an effective ingredient a hardly water-soluble or water-insoluble, nitrogen-containing phosphorus compound obtained by mixing 100 parts by weight of a condensed phosphoric acid compound with 10 to 100 parts by weight of a triazine compound and heating the mixture at 100.degree. to 250.degree. C. in the presence or absence of water.

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: The fire retardant characteristics of a melt producable plastic is enhanced by mixing with the plastic a fire retardant compound and a glycoside.

Abstract: Pulverulent red phosphorus stabilized with zinc fluoride and the use thereof as flame-retarding agent to thermoplastic moulding compositions.

Abstract: Polycarbonate-based compositions the fire-resistance of which is improved with small but effective amounts of a urazole salt having the formula: ##STR1## wherein R and R' are the same or different and are hydrogen, an alkyl group having from one to six carbon atoms, phenyl, or halosubstituted phenyl, and M is an alkali metal, many of such fire-resistive polycarbonates being transparent, together with method for preparing such fire-resistive polycarbonates.

Abstract: Carbonate polymer blend compositions which exhibit flame resistant properties comprising a carbonate polymer and grafted rubber compound in which at least a portion of the grafted on the rubber backbone is a flame resistant polymer.

Abstract: When exposed to an open flame, the resultant polymer melt of a reinforced, flame-proofed thermoplastic polyester can be effectively prevented from dripping by the addition of xonotlite.

Abstract: Poly(C.sub.2 -C.sub.4 alkylene terephthalate) molding composition containing aromatic polyester and impact modifier. The aromatic polyester is a linear aromatic polyester consisting essentially of bisphenol and dicarboxylic acid monomer components. The impact modifier may be a core-shell polymer polymerized from monomers comprising butadiene or may be a core-shell polymer having a first elastomeric phase polymerized from a monomer system including C.sub.1 -C.sub.6 alkylacrylate as well as crosslinking and graftlinking monomers and having a final rigid thermoplastic phase polymerized in the presence of the elastomeric phase.

Abstract: Poly(dicyclopentadiene) made with an olefin metathesis catalyst system by a Reaction Injection Molding process is improved by adding flame retardant compounds.

Abstract: A reactive fire retardant mixture useful in the preparation of polyurethane foams. The mixture contains a halogenated imide-containing polyol having the formula: ##STR1## and the corresponding ether having the formula: ##STR2## wherein R is a hydrocarbon group having the valance n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, R' is an aliphatic hydrocarbon group containing 3-12 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6. They are prepared by reacting an alcohol (e.g. isopropyl alcohol), a halogenated dicarboxylic anhydride (e.g. tetrabromophthalic anhydride) and an aminopolyol (e.g. 2-amino-2-ethyl-1,3-propanediol).

Abstract: The char residue formation of molded compositions, upon combustion, is improved by incorporating into the moldable composition a char-forming polymer containing recurring units of at least one monomer capable of undergoing tautomerization, at least one monomer capable of undergoing a nucleophilic substitution reaction by said monomer capable of undergoing tautomerization and, optionally, at least one additional copolymerizable monomer.

Abstract: A reactive fire retardant mixture useful in the preparation of polyurethane foams. The mixture contains a halogenated imide-containing polyol having the formula: ##STR1## and the corresponding ether having the formula: ##STR2## wherein R is a hydrocarbon group having the valance n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, R' is an aliphatic hydrocarbon group containing 3-12 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6. They are prepared by reacting an alcohol (e.g. isopropyl alcohol), a halogenated dicarboxylic anhydride (e.g. tetrabromophthalic anhydride) and an aminopolyol (e.g. 2-amino-2-ethyl-1,3-propanediol).

Abstract: Gelatinized starch is reacted with sulfamate at elevated temperature in an aqueous medium to give a flame resistant starch-sulfamate product. Suitable sulfamates include alkali-sulfamates and alkaline earth sulfamates. The amount of sulfamate used can be in the range of 3 to 40 percent by weight, based on starch dry substance. Minimum water content of the reaction mixture is about 30 percent by weight. Reaction temperatures are from about 40.degree.-250.degree. C. The starch-sulfamate products are useful as fillers, thickeners and binders, among other things.

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: Red phosphorus stabilized with cadmium salts of carboxylic acids is suitable for use as a flameproofing agent for polyamide moulding compositions.

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: Flame retardant thermoplastic compositions are described which comprise 30-98% by weight thermoplastic, 1-40% by weight of a silicone fluid, 1-20% by weight of metal soap precursors and 1-20% by weight of a silicone resin. Such compositions offer simpler processing, improved impact resistance and other advantages over conventional flame retardant thermoplastic compositions.

Abstract: Non-burning, non-dripping instant set microcellular polyurethanes involving an isocyanate-terminated reaction product of polyisocyanate with low molecular weight polyether polyol or polyol blends in the presence of other ingredients such as inert liquids with boiling points above about 150.degree. Celsius and accelerating agents for urethane formation. Specifically, this invention provides an improved mode for flame retarding polyurethane compositions by incorporating a mixture of dibromoneopentyl glycol (DBNG) or its esters and a non-reactive flame retardant plasticizer when dissolved or dispersed into the urethane polymer. Molecular sieves are included, which enhance char formation. The compositions have applications with stringent fire retardancy standards, such as electrical insulators, industrial housings, annular spacers, decorative objects, furniture or furniture components, gear and machine components, agricultural components and other related areas.

Abstract: An industrial fabric having a plain woven fabric in which the warp and weft are textured, continuous filament, polyester yarns.

Abstract: Flame retardant, non-dripping polycarbonate compositions exhibiting good thick section impact comprised of, in admixture:(i) a minor amount of a fluorinated polyolefin; and(ii) a carbonate copolymer based on the reaction products of(a) a carbonate precursor,(b) at least one halogen-free and sulfur free dihydric phenol, and(c) at least one halogen-free thiodiphenol.

Abstract: Fire retardant compositions in the form of a powder are produced from the following components:______________________________________ Component Parts by Weight ______________________________________ Aldehyde 70-110 Ammonium phosphate 120-180 Ammonium sulfate 120-180 Urea 120-180 Alkanolamine 35-50 Phosphoric acid 100-150 ______________________________________Also provided are fire retardant compositions containing the powder, and methods for treating substrates such as paper or wood to impart fire retardant properties thereto.

Abstract: Process and apparatus are disclosed for manufacturing foamed articles such as tubes used as pipe insulation, which tubes are of a high impermeability and flexibility and are formed of a polymer, such as polyethylene or polypropylene, containing up to about 25% of an elastomer.

Abstract: Nucleating agents have been discovered which enable molded articles to be prepared with smooth glossy surfaces from blends of polyethylene terephthalate and polybutylene terephthalate in the "wet state", i.e., without the resin having been subjected to a predrying stage.The present invention is directed to polyalkylene terephthalate resin compositions. Specifically, it is directed to undried blends of polyethylene terephthalate and polybutylene terephthalate resins with nucleating agents which enable these resin blends to be molded into articles with smooth glossy surfaces. In a preferred embodiment fillers and/or reinforcing materials are added without subjecting the resin to a predrying treatment which has been heretofore necessary in the prior art.

Abstract: A composition and method of application of the composition to produce masks of the type particularly useful in the manufacture of varnished electronic terminals and components is specified. The composition consists of mixing acetone, nitrocellulose, methyl isobutyl ketone (MIBK), arylsulfonamide formaldehyde resin, and tri (b-chloroethyl) phosphate, a fire retardant, under carefully controlled conditions. This masking product is applied, prior to the varnish, on an electronic part and is subjected to heating in the varnish curing oven to about 200.degree. F. whereupon the masking product will carbonize. The resulting carbonized coating is easily removed by brushing to produce a varnish mask where the masking product was applied.

Abstract: An aqueous coating composition for the corrosion-protection and/or fire-protection of substrates comprising a dispersion of chemically delaminated vermiculite lamellae in an aqueous solution or dispersion of a film-forming polymeric binder. Preferably the vermiculite lamellae are of size below 50 microns, especially below 20 microns, and the film-forming polymeric binder is in the form of a colloidal dispersion or emulsion of the polymer in water such as is commonly called a latex.

Abstract: A halogen-containing polycarbonate resin is formed by copolymerizing the following oligomers (a) and (b) in the presence of caustic alkali an organic solvent and water and in the substantial absence of bisphenol A:(a) 10 to 85 parts by weight of a polycarbonate oligomer with terminal groups consisting of chloroformate groups or chloroformate groups plus hydroxyl groups in a molar amount less than the chloroformate groups, having a number average molecular weight of 500 to 10,000 and containing no aromatic halogen or less than 4% by weight of aromatic halogen, and(b) 90 to 15 parts by weight of an aromatic halogen-containing polycarbonate oligomer with terminal groups consisting of chloroformate groups or chloroformate groups plus hydroxyl groups in a molar amount less than the chloroformate groups, having a number average molecular weight of 1,000 to 10,000 and containing 6 to 30% by weight of aromatic halogen.

Abstract: A fire-retarding resin composition composed of(a) a thermoplastic resin,(b) about 20 to about 60% by weight, based on the total weight of (a), (b) and (c), of a magnesium hydroxide powder whose surface is treated with an alkali metal oleate, and(c) about 0.1 to about 10% by weight, based on the total weight of (a), (b) and (c), of at least one fatty acid metal salt selected from the group consisting of magnesium oleate and aluminum oleate; and a fire retardant composition for thermoplastic resins, said composition comprising(b) a magnesium hydroxide powder whose surface is treated with an alkali metal oleate, and(c) at least one fatty acid metal salt selected from the group consisting of magnesium oleate and aluminum oleate, the weight ratio of (b) to (c) being from 2 to 600:1.

Abstract: An improved flame-retardant thermoplastic compound based upon a surface modified alumina hydrate composition containing powdered alumina hydrate, a liquid mixture of C.sub.10 -C.sub.20 carboxylic acids and a solid mixture of C.sub.14 -C.sub.20 carboxylic acids. A preferred solid mixture comprises stearic acid and palmitic acid. Thermoplastic compounds made with polypropylene and an alumina hydrate composition containing isostearic acid together with the solid fatty acid mixture of the invention exhibit an increased melt index and reduced molding pressure compared with polypropylene compounds made with isostearic acid coated alumina hydrate and no solid fatty acid mixture.

Abstract: There is provided flame retardant thermoplastic compositions and masterbatch formulations effective for rendering thermoplastics flame retardant. A typical flame retardant composition could be comprised of 50 to 97 percent by weight of thermoplastic, 1 to 40 percent of a silicone base such as a linear silicone fluid or gum, 1 to 20 percent of a metal organic compound such as magnesium stearate, and 1 to 20 percent of a silicone resin such as MQ resin which is soluble in the silicone base.

Abstract: Copolyester-carbonate resins, and articles molded therefrom, exhibiting improved processability comprising the reaction product of; (i) at least one dihydric phenol; (ii) a carbonyl halide carbonate precursor; (iii) at least one difunctional carboxylic acid or a reactive derivative thereof; and (iv) at least one bishaloformate represented by the general formula ##STR1## wherein X represents a halogen radical and R represents an alkylene radical, said bishaloformate being present in an amount effective to improve the processability of said resin.

Abstract: Nucleating agents have been discovered which enable molded articles to be prepared with smooth glossy surfaces from blends of polyethylene terephthalate and polybutylene terephthalate in the "wet state", i.e., without the resin having been subjected to a predrying stage.The present invention is directed to polyalkylene terephthalate resin compositions. Specifically, it is directed to undried blends of polyethylene terephthalate and polybutylene terephthalate resins with nucleating agents which enable these resin blends to be molded into articles with smooth glossy surfaces. In a preferred embodiment, fillers and/or reinforcing materials are added without subjecting the resin to a predrying treatment which has been heretofore necessary in the prior art.

Abstract: Thermoplastic polyurethane elastomer compositions comprising a polyurethane elastomer, a pentate salt of an amino-s-triazine, and optionally a polyol are flame retardant and intumescent and may be compounded to be self-extinguishing.