Abstract: This invention relates to poly(1,4-cyclohexylenedimethylene terephthalate) (PCT) compositions with improved crystallization characteristics due to the presence of a high molecular weight aliphatic polyester. Specifically, the invention is directed to PCT compositions containing an aliphatic polyester with a number-average molecular weight of at least 8,000.

Abstract: A laser markable white pigment composition includes a first pigment which is markable by ultraviolet laser, a second pigment, which is nonabsorbing in the ultraviolet region of the optical spectrum and which has a white appearance in the visible region of the optical spectrum, with the ratio of the amount of first pigment to amount of second pigment being in the range of from 4:1 to 1:10, so that the second pigment is present in an amount sufficient to increase the optical density, that is the whitening effect, of the composition, without adversely affecting the laser markability of the composition, and a carrier which is at least one fluoropolymer transparent in the ultraviolet region of the optical spectrum.

Abstract: The action of thermoplastic polymers to whose polymer backbone aliphatic or cycloaliphatic groups are bonded via a group --O--, --O--CO--, --CO--OR.sup.22 --OCO-- or --CO--O--, said aliphatic or cycloaliphatic groups being substituted by Cl, Br and/or iodine in the .alpha.-, .beta.-, .gamma.- or .omega.-position, on an unsubstituted or substituted tetrathio-, tetraseleno- or tetratelluronaphthalene or -tetracene contained in this polymer gives electrically conducting compositions by the formation of charge transfer complexes. These compositions are suitable for the production of antistatic or electrically conducting mouldings, sheets, filaments, fibres, coatings and composites.

Abstract: The present invention relates to a flame-retardant resin composition having halogen content of 2 to 40% by weight basing on the amount of said composition, which comprises(a) 100 parts by weight of a styrene-based polymer having mainly syndiotactic configuration, or a mixture of 99 to 50% by weight of said styrene-based polymer and 1 to 50% by weight of a thermoplastic resin (exclusive of tetrafluoroethylene-based polymer) and/or rubber;(b) 3 to 40 parts by weight of a flame retardant selected from the group consisting of halogenated polystyrenes and halogenated polyphenylene oxides and(c) 1 to 15 parts by weight of an auxiliary flame retardant, as main components.In addition, the present invention contains the above components (a), (b) and (c) as main components, and further contains(d) 0.003 to 10 parts by weight of tetrafluoroethylene-based polymer and/or(e) 1 to 300 parts by weight of an inorganic filler.

Abstract: A flame retardant styrene composition that has improved impact strength is provided while maintaining heat deflection temperature and flexural modulus. The impact strength is improved through the use of a styrene butadiene block copolymer compatibilizing agent. In a preferred embodiment, the use of a brominated diphenyl oxide as a flame retardant is avoided.

Abstract: Flame retardant polyester compositions exhibiting good processability comprising at least one polyester resin and a flame retardant additive comprising a halogenated polycarbonate resin and an antimony compound in a polyetherimide ester elastomer resin carrier.

Abstract: A flame retardant cyclic olefinic polymer composition which comprises[A](a) a cyclic olefinic random copolymer formed from an ethylenic component and a cyclic olefinic component represented by the following general formula [I], or(b) a ring-opened polymer of a cyclic olefinic component represented by the following general formula [I] or a hydrogenated derivative of the polymerwhich copolymer or polymer has a limiting viscosity [.eta.] of 0.01 to 10 dl/g measured in decalin at 135.degree. C. and a softening temperature (TMA) of 70.degree. C. or more; ##STR1## [B] a halogen type flame retardant, [C] an antimony type flame retardant, and[D] polytetrafluoroethylene, and if desired[E] at least one copolymer selected from the amorphous or low crystalline alpha-olefinic copolymer which is formed from at least two alpha-olefins, and an amorphous or low crystalline copolymer which contains as one of monomer constituents styrene or its derivative and has at least one of glass transition temperatures of 0.degree. C.

Abstract: Concrete/mortar is manufactured with a small amount of water by using fine polymer particles containing frozen water. The water becomes available when the particles thaw or the particles may be used directly without freezing.

Abstract: A flame-retardant polyester resin composition includes a thermoplastic polyester resin, between 1 to 30 wt. % of an organic halogenated flame-retardant, between 5 to 60 wt. % of an inorganic filler, and between 0.5 to 20 wt. % of a phosphoric ester of the following formula (1): ##STR1## wherein R represents a divalent organic group, R' which may be the same or different, is selected from C.sub.1 to C.sub.20 aliphatic groups, C.sub.3 to C.sub.13 alicyclic groups and C.sub.6 to C.sub.18 aromatic groups, m represents a number of 1 to 30, and n represents an integer of 0 to 3.

Abstract: A composition stabilized against thermal crosslinking and consequent reduction of its melt index, comprising a uniform dispersion of antimony oxide in a blend of a matrix polymer which is a dipolymer of ethylene with an ethylenically unsaturated carboxylic acid or a terpolymer of ethylene with an ethylenically unsaturated carboxylic acid and with another ethylenically unsaturated comonomer, carbon dioxide or sulfur dioxide; an organo-halogen fire-retardant; and a stabilizing polymer which is a high melt index copolymer of ethylene with acrylic or methacrylic acid. Such compositions are useful as adhesive layers in laminates used in packaging and building construction.

Abstract: A novel flame retardant formulation comprising a flammable macromolecular material and a metal salt of a polybrominated sulfonic acid and having improved flame retardancy and enhanced U.V. stability.

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: Effective amounts of low molecular weight brominated polystyrenes unexpectedly provide good property retention and yet achieve desired flame retardance, for example, UL-94 VO in high impact polystyrene. In contrast, high molecular weight brominated styrene polymers (degree of polymerization equals 2,000) do not provide good property retention such as impact strength and toughness in high impact polystyrene. The degree of polymerization of the brominated polystyrenes of the present invention is generally from about 3 to about 20 and can have a considerable variation in the amount of halogenation. The high impact polystyrenes blended with the low molecular weight brominated polystyrenes are readily processed by conventional equipment.

Abstract: Effective amounts of low molecular weight brominated polystyrenes unexpectedly provide good property retention and yet achieve desired flame retardance, for example, UL-94 VO in high impact polystyrene. In contrast, high molecular weight brominated styrene polymers (degree of polymerization equals 2,000) do not provide good property retention such as impact strength and toughness in high impact polystyrene. The degree of polymerization of the brominated polystyrenes of the present invention is generally from about 3 to about 20 and can have a considerable variation in the amount of halogenation. The high impact polystyrenes blended with the low molecular weight brominated polystyrenes are readily processed by conventional equipment.

Abstract: Effective amounts of low molecular weight brominated polystyrenes unexpectedly provide good property retention and yet achieve desired flame retardance, for example, UL-94 VO in high impact polystyrene. In contrast, high molecular weight brominated styrene polymers (degree of polymerization equals 2,000) do not provide good property retention such as impact strength and toughness in high impact polystyrene. The degree of polymerization of the brominated polystyrenes of the present invention is generally from about 3 to about 20 and can have a considerable variation in the amount of halogenation. The high impact polystyrenes blended with the low molecular weight brominated polystyrenes are readily processed by conventional equipment.

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: This invention relates to thermoplastic formulations which comprise: (1) at least 50 weight percent, based upon the total weight of the formulation, unreinforced nylon selected from nylon 6,6 nylon 6 or mixtures thereof, and (2) a sufficient amount of decabromodiphenyl ethane to provide a melt index, as measured by ASTM D 1238-79, 265.degree. C./1200 grams, which is higher than the like-measured melt index of such nylon alone.This invention also relates to thermoplastic formulations which comprise: (1) at least 50 weight percent, based upon the total weight of the formulation, reinforced nylon selected from glass reinforced nylon 6,6, glass reinforced nylon 6 or mixtures thereof, and (2) a sufficient amount of decabromodiphenyl ethane to provide a melt index, as measured by ASTM D 1238.LAMBDA., 275.degree. C./550 grams, which is higher than the like-measured melt index of such reinforced nylon alone.

Abstract: A fire-retardant polycarbonate resin composition comprising 100 parts by weight of a halogen atom-free conventional polycarbonate resin having a viscosity-average molecular weight of 10,000 to 30,000, a fire retardant in an amount necessary for imparting fire retardance, and 5 to 60 parts by weight of a halogen atom-free ultrahigh-molecular-weight polycarbonate resin having a viscosity-average molecular weight of 100,000 to 250,000, said composition showing a flow value of 0.01 to 0.3 cm.sup.3 /sec when measured at 280.degree. C. under a load of 180 kg/cm.sup.2 using a die having a hold diameter of 1 mm and a length of 10 mm and performance rated at class V-0 when conducting a burning test in accordance with a UL-94 test about a test piece having a thickness of 1 mm.

Abstract: Flame retardancy of polyphenylene ether, polyolefin and polyethylene terphthalate resins and resin blends is increased by blending with the resin a flame retarding amount of a halogenated polyester which is the reaction product of a halogenated phthalic acid or phthalic anhydride with an epoxide or hydroxy compound containing at least two hydroxyl groups. The polyphenylene ether resin may include homopolymers or copolymers of polyphenylene ethers or blends of polyphenylene ethers with vinyl aromatic resins such as styrene polymers and copolymers. The flame retarding polyesters are also effective as processing aids in improving the flowability and moldability of the resins during melt processing.

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: This invention relates to novel mixtures of brominated diphenyl ethanes, such mixtures containing a predominant amount of hexabromodiphenyl ethane and having an average bromine number, based upon GC area percent, of from about 6.7 to about 7.3. ABS based formulations containing such mixtures and articles made from such formulations are also a part of this invention.

Abstract: Flexibilized vinyl halide polymers and copolymers having improved flame retarding and smoke suppressing as well as physical and electrical properties are described. The compositions are characterized by an unusual combination of ingredients comprising a base polymer flexibilized with chlorinated polyethylene, flame and/or smoke suppressants, stabilizers and plasticizers. The compositions exhibit improved flame and smoke suppression and low brittleness temperature over that of conventional fire and smoke suppressed PVC.

Abstract: Flame-resistant polyester moulding compounds comprising(A) 70-95% by weight of a specific polyester mixture made up of polyethylene terephthalate, polybutylene terephthalate copolyester with 3-30 mol % of an aliphatic dicarboxylic acid containing up to 36 C atoms, and, if desired, polybutylene terephthalate, and(B) 30-5% by weight of a flame-retardant additive made up of a bromine-containing organic compound and an antimony compound selected from the group comprising Sb.sub.2 O.sub.5, NaSbO.sub.3 and Sb.sub.2 O.sub.3, with a mean particle size of not less than 2 .mu.m,are particularly suitable for the production of partially crystalline mouldings by means of injection moulding. The mouldings are distinguished by a light self-colour with comparatively good thermal, mechanical and electrical properties.

Abstract: Disclosed is a composition comprising a polyester of terephthalic acid, 1,4-butanediol and/or 1,4-cyclohexanedimethanol, a halogenated organic compound, an antimony compound and a polymer of at least one olefin which contains acid, anhydride or epoxide functional groups. The composition has improved flame resistance. Also disclosed is a method for improving the flame resistance of polymeric compositions.

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: Fire retardant and water blocking material for cables having an admixture, in parts by weight, of 100 parts of amorphous polypropylene, which is in a continuous phase throughout the composition, from 10 to 70 parts of hydrated inorganic oxide or hydroxide material, and an organic halogenated material and antimony trioxide, the aggregate of the organic halogenated material and antimony trioxide being from 5 to 30 parts.

Abstract: Flame retardant PVC compositions incorporate a non-flame retardant primary plasticizer, an effective amount of a polybrominated higher alkylbenzene or mixture thereof, a stabilizer and an enhancing agent.

Abstract: A curable composition, in which powder of an organic or inorganic compound is added to and dispersed in a 2-cyanoacrylate and an acidic substance and a basic substance are contained as the stabilizer.In the curable composition of the invention, powder of organic or inorganic compound can be stably dispersed into the composition by the combined use of the acidic substance and the basic substance, thereby providing desired properties with ease while giving excellent storage stability and maintaining the instantaneous curing property of the composition. The curable composition can generally be used as adhesives, coating agents, paints, potting agents, etc.

Abstract: The flameproofed, readily crystallizing polyethylene terephthalate molding compounds, which contain polyalkyl phosphonates and crystallization aids, may be used for the production of moldings, fibers or films.

Abstract: A polybutylene terephthalate composition comprises (A) polybutylene terephthalate, (B) a flame retardant and (C) a flame-retarding assistant of antimony trioxide having an average particle size of 1 micron or larger and eventually is improved in the flame-retarding property and stability when it melts.

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: Curable flame retardant mixtures of a polyolefin (non-rubbery), a polyphenylene ether resin, an aromatic phosphate, a brominated compound or polymer, and a crosslinking agent are described. Electrically conductive articles having insulation material made of the composition and methods for preparing such articles are also disclosed.

Abstract: The flameproofing agent content of molding compositions containing polyesters (a.sub.1), acrylate graft polymers (a.sub.2), styrene/acrylonitrile copolymers (a.sub.3) and glass fibers can be reduced without affecting the flame resistance by adding finely divided PTFE.

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 retardancy of polyphenylene ether resins is increased by blending with the resin a flame retarding amount of a halophenyl hydrocarbyl ester. The ester is preferably the reaction production of a halogenated phenol, preferably a bromophenol, and a hydrocarbyl acid, acid chloride or acid anhydride. The polyphenylene ether resin may include homopolymers or copolymers of polyphenylene ethers or blends of polyphenylene ethers with vinyl aromatic resins such as styrene polymers and copolymers. The flame retarding halophenyl esters are also effective as processing aids in improving the flowability and moldability of the polyphenylene ether resins during melt processing.

Abstract: The present invention relates to high impact strength flame-retardant polycarbonate moulding compositions, which are characterized in that they consist of halogen-free polydiorganosiloxane-polycarbonate block copolymers, halogen-free copolymers, halogen-free phosphorus compounds, tetrafluoroethylene polymers and, if appropriate, stabilizers, pigments, flow control agents, mould release agents and/or antistatics, and to processes for their preparation.

Abstract: Tetrahalophthalate esters are disclosed herein as flame retardant processing aids for styrene-maleic anhydride (SMA) resins.

Abstract: Tetrahalophthalate esters are disclosed herein as flame retardant processing aids for polycarbonate resins.

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: An impact resistant flame-retardand resin composition comprising:100 parts by weight of a polymer mixture comprising a polycarbonate resin (A), a rubber-reinforced vinyl copolymer (B) and, optionally, a vinyl polymer (C);from 3 to 50 parts by weight of a high molecular weight halogenated compound of the following formula I having a halogen content of at least 10% by weight: ##STR1## wherein n is an average polymerization degree of from 35 to 100, each X independently represents hydrogen, chlorine or bromine, each of i, j, k and l is an integer of from 1 to 4, and each of R and R' independently is hydrogen, a methyl group, an epoxypropyl group, a phenyl group or ##STR2## wherein m is 0, 1, 2 or 3; and from 2 to 30 parts by weight of an antimony compound.

Abstract: Thermoplastic composition based on a crystalline polyester and a modified vinyl aromatic polymer. It comprises:from 50 to 97% by weight of at least one polymer phase (A) consisting of at least one terpolymer produced by grafting (a) at least one vinyl aromatic monomer and (b) at least one unsaturated nitrile onto (c) at least one rubber, the terpolymer being dispersed in a matrix of a copolymer comprising units derived from (d) at least one unsatured nitrile and (e) at least one vinyl aromatic monomer, the overall composition of the polymer phase (A) being such that it contains from 17 to 35 parts of unsaturated nitrile, from 10 to 60 parts of rubber, and from 10 to 60 parts of vinyl aromatic monomer per 100 parts by weight of the polymer phase, andfrom 3 to 50% by weight of at least one high molecular weight polybutylene terephthalate (B).

Abstract: Copolyetherester-containing blends having improved tensile strength together with high tear strength, tensile elongation and impact strength are prepared by creating an admixture of copolyetherester with a polycarbonate and, optionally, a polyester.

Abstract: A composition suitable as an electrical conductor insulation is provided which is composed of an ethylene-containing polymer, a halogenated flame retardant, an antimony compound, a lead compound, a peroxide curing agent and optionally a phenolic antioxidant and a zinc salt.

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.

Abstract: Disclosed is a polyester molding composition containing a reinforcing material and a halogenated flame retardant, the polyester containing repeat units from terephthalic acid and 1,4-cyclohexane-dimethanol, the composition further comprising an additive system which enhances the flame retardancy thereof without detrimental loss of mechanical properties, said composition characterized as having a heat deflection temperature of greater than 250.degree. C., a tensile strength of greater than 16,000 psi, a flexural strength of greater than 21,500 psi and a notched Izod impact strength of greater than 1.5.

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: Flame retardant MPPE compositions incorporate an effective amount of a polybrominated higher alkylbenzene or mixture thereof as a flame retardant and flow modifier together with an enhancing agent.

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 antimony oxide, brominated polystyrene and polytetrafluoroethylene resin.