Additives for flame-retardant polyolefins

Abstract

The present invention provides a flame retardant additive composition comprising at least one glow suppressant and at least one brominated flame retardant. The glow suppressant is present in an amount of about 0.5% by weight or more of the flame retardant additive composition, based on the total weight of the flame retardant additive composition. The brominated flame retardant contains aromatically bound bromine and is selected from a) brominated anionic styrenic polymers having a number average molecular weight of about 750 to about 7500 and / or a bromine content of about 60% to about 77% by weight, b) brominated anionic chain transfer vinyl aromatic polymers containing about 70% or more by weight of bromine, or a mixture of any two or more thereof. Also provided is a flame retardant polyolefin composition containing at least one glow suppressant and a brominated flame retardant.

Description

[Technical Field]

[0001] This invention relates to flame-retardant additive compositions and flame-retardant polyolefins. [Background technology]

[0002] Many plastics, including polyolefins, are flame-retardant to reduce the spread of fire. WO2005 / 095685 states that polybrominated anionic styrene polymers are used in combination with at least one synergistic agent to flame-retard polyolefins; the polybrominated anionic styrene polymer is present in an amount of about 15% by weight or less of the polyolefin. WO2001 / 029124 discloses polyolefins with flame retardants including bis(2,3-dibromopropyl ether) of tetrabromobisphenol-A and bis(2,3-dibromopropyl ether) of tetrabromobisphenol-S. U.S. Patent No. 6780348 discloses a combination of polybromodiphenylalkane and tetrabromobisphenol-A-bis(bromoalkyl ether). U.S. Patents No. 8476373 and 8933159 cover brominated anionic chain-transfer vinyl aromatic polymers that can flame-retard polyolefins.

[0003] In polyolefins, a common problem after the flame has extinguished is glow (sometimes called afterglow), which persists in polyolefins containing flame retardants. In some applications, a long glow time is unacceptable.

[0004] This technology constantly requires improvements in the flame retardancy of plastics such as polyolefins. [Overview of the project]

[0005] The present invention provides a flame retardant additive composition and a polyolefin containing the flame retardant additive composition. The flame retardant is a brominated aromatic polymer flame retardant. The flame retardant additive composition-containing polyolefin of the present invention has a good track record in UL-94 vertical combustion tests.

[0006] One embodiment of the present invention is a flame retardant mixture comprising at least one brominated flame retardant and at least one glow inhibitor. The brominated flame retardant is a brominated anionic styrene polymer containing aromatically linked bromine and having a number average molecular weight of about 750 to about 7500 and / or a bromine content of about 60% to about 77% by weight, a brominated anionic chain transfer vinyl aromatic polymer containing about 70% by weight or more bromine, or any two or more mixtures thereof.

[0007] Another embodiment of the present invention is a flame-retardant polyolefin composition formed from at least one polyolefin, at least one brominated flame retardant, at least one glow inhibitor, and at least one inorganic compound. The brominated flame retardant is a brominated anionic styrene polymer containing aromatically linked bromine and having a number average molecular weight of about 750 to about 7500 and / or a bromine content of about 60% to about 77% by weight, a brominated anionic chain-transfer vinyl aromatic polymer containing about 70% by weight or more bromine, or any two or more mixtures thereof.

[0008] A further embodiment of the present invention is a flame-retardant polyolefin composition formed from at least one polyolefin, at least one brominated flame retardant, and at least one inorganic compound. The brominated flame retardant contains aromatically linked bromine and has a number average molecular weight of about 750 to about 7500 and / or a bromine content of about 60% to about 77% by weight. It is a styrene-based polymer.

[0009] Other embodiments of the present invention include processes for preparing the flame-retardant additive composition and flame-retardant polyolefin composition of the present invention.

[0010] These and other embodiments and features of the present invention will become further apparent from the following detailed description and the appended claims. [Modes for carrying out the invention]

[0011] Throughout this document, the flame-retardant additive composition may be referred to as the "additive composition." The term "polyolefin composition" may be used to refer to the flame-retardant polyolefin composition of the present invention.

[0012] The brominated flame retardant that can be used in the practice of the present invention has a number average molecular weight (M) of about 750 or more, preferably about 1000 or more, and more preferably about 2000 or more. n These are low molecular weight brominated anionic styrene polymers having ). In some embodiments, these brominated anionic styrene polymers have a molecular weight in the range of about 750 to about 7500, preferably about 1000 to about 4000, and more preferably about 2000 to about 3500. n It holds.

[0013] Typically, low molecular weight brominated anionic styrene polymers contain about 60% by weight or more of bromine, preferably about 66% by weight or more, and more preferably about 72% by weight or more. In some embodiments, these brominated anionic styrene polymers contain about 60% to about 77% by weight of bromine, preferably about 66% to about 77% by weight of bromine, and more preferably about 72% to about 76% by weight of bromine.

[0014] Preferably, the low molecular weight brominated anionic styrene polymer is brominated anionic polystyrene. In some embodiments, the low molecular weight brominated anionic styrene polymer is brominated anionic polystyrene having a number average molecular weight of about 750 to about 7500 and about 60% to about 77% by weight of bromine, preferably about 1000 to about 4000 and about 70% to about 77% by weight of bromine, more preferably about 2000 to about 3500 and about 72% to about 76% by weight of bromine.

[0015] Low molecular weight brominated anionic styrenic polymers can be formed by bromination in an organic solvent. Information regarding the preparation of low molecular weight brominated anionic styrenic polymers can be found, for example, in International Patent Publications WO2017 / 176740 and WO 2017 / 184350.

[0016] Another brominated flame retardant that can be used in the practice of the present invention may not be classified as a styrenic polymer because the number of repeating units of these molecules is relatively small. These molecules contain aromatic-bonded bromine and repeating units of styrene. This brominated flame retardant is a brominated anionic chain transfer vinyl aromatic polymer containing about 70 wt% or more bromine, preferably about 72 wt% or more bromine, and a number average molecular weight of about 1000 or more, preferably about 1250 or more. In some embodiments, the bromine content is in the range of about 70 wt% to about 79 wt%, preferably about 72 wt% to about 78 wt%, and M n is in the range of about 1000 to about 21,000, preferably about 1250 to about 14,000, more preferably about 2000 to about 10,000.

[0017] Preferably, the brominated anionic chain transfer vinyl aromatic polymer is brominated anionic chain transfer polystyrene. In some embodiments, the brominated anionic chain transfer vinyl aromatic polymer is a brominated anionic chain transfer polystyrene having a number average molecular weight of about 2000 to about 10,000 and about 72 wt% to about 78 wt % bromine.

[0018] The brominated anionic chain transfer vinyl aromatic polymer can be formed by bromination in an organic solvent or in a sea of bromine (where bromine is both the brominating agent and the solvent). Information regarding the preparation of brominated anionic chain transfer vinyl aromatic polymers can be found, for example, in U.S. Pat. Nos. 8,420,876, 8,796,388, and 8,993,684.

[0019] Flame Retardant Additive Composition As described above, the flame retardant additive composition of the present invention comprises at least one brominated flame retardant and at least one glow inhibitor.

[0020] In the flame retardant additive composition of the present invention, the raw material of the composition consists of a brominated flame retardant. The additive composition is described with respect to other components present in the composition, with the understanding that the remainder of the composition consists of a brominated flame retardant. The brominated flame retardant is a brominated anionic styrene polymer containing aromatically linked bromine and having a number average molecular weight of about 750 to about 7500 and / or a bromine content of about 60% to about 77% by weight, a brominated anionic chain-transfer vinyl aromatic polymer containing about 70% by weight or more bromine, or any two or more mixtures thereof.

[0021] In practice of the present invention, a mixture of two or more brominated flame retardants can be used. In addition to the brominated anionic styrene polymer and / or the brominated anion chain transfer vinyl aromatic polymer, the flame retardant additive composition may contain one or more other brominated flame retardants. Suitable brominated flame retardants include hexabromocyclohexane, dibromoethyldibromocyclohexane, monochloropentabromocyclohexane, tetrabromocyclooctane, hexabromocyclododecane, bis(pentabromophenyl)ethane (decabromodiphenylethane), hexabromobenzene, dibromostyrene and its derivatives, pentabromodiphenyl oxide, octabromodiphenyl oxide (octabromodiphenyl ether), decabromodiphenyl oxide (decabromodiphenyl ether), 1,2-bis(tribromophenoxy)ethane, tetradecabromodiphenoxybenzene, 2,4,6-tribromophenol allyl ether, dibromoneopentyl glycol, tribromoneopentyl alcohol, tetrabromobisphenol-A, tetrabromobisphenol A diallyl ether, tetrabromobisphenol-A bis(2,3-dibromopropyl ether), bis(2,4,6-tri Romophenoxyethyl) tetrabromobisphenol-A ether, tetrabromobisphenol-bis(2-hydroxyethyl) ether, tetrabromobisphenol-S, tetrabromobisphenol-S bis(2,3-dibromopropyl ether), brominated epoxy oligomers such as tribromophenol end-cap brominated epoxy oligomer, tetrabromobisphenol-A based brominated carbonate oligomers such as 2,4,6-tribromophenyl-terminated tetrabromobisphenol-A carbonate oligomer and phenoxy-terminated tetrabromobisphenol-A carbonate oligomer, brominated polystyrene, block copolymer of polystyrene and brominated polybutadiene, poly(dibromophenylene oxide), poly(pentabromobenzylate), brominated phthalate, diallyl tetrabromophthalate, bis(2-ethylhexyl) tetrabromophthalate, tetrabromophthalimide, N,N-ethylene-bis(tetrabromophthalimide), tetrabromophthalic anhydride, mixed esters of tetrabromophthalic anhydride and diethylene glycol and propylene glycol, N,N'-ethylene-bis-(5,6-dibromonorbornane 2,3-dicarboximide), tris(tribromophenyl)triazine, brominated phenoxytriazines such as tris(tribromophenoxy)triazine, brominated maleimides such as tribromophenylmaleimide, brominated trimethylphenylindan, tris(2,3-dibromopropyl)isothio, Examples include brominated isocyanurates such as anurates, and tris(tribromoneopentyl)phosphate. Preferred brominated flame retardants for use in combination with brominated anionic styrene polymers and / or brominated anionic chain-transfer vinyl aromatic polymers include decabromodiphenylethane and N,N-ethylene-bis(tetrabromophthalimide).

[0022] The UL-94 vertical combustion test defines afterglow time (glow duration) as "the length of time that afterglow persists under specific conditions." Glow inhibitors are substances that shorten afterglow time. In practice of the present invention, a glow inhibitor is a compound comprising at least one five-membered or six-membered ring portion containing at least one nitrogen atom. Two or more nitrogen-containing rings may be present in the glow inhibitor. The nitrogen-containing ring(s) may be saturated or unsaturated; unsaturated rings are preferred. Each nitrogen-containing ring portion typically has one, two, or three nitrogen atoms. In some embodiments, a nitrogen-containing ring portion having three nitrogen atoms is preferred. The glow inhibitor molecule may contain nitrogen in an amount of about 2% by weight or more, about 5% by weight or more, or about 10% by weight or more.

[0023] Examples of nitrogen-containing ring moieties include triazole, pyridine, pyridazine, pyrimidine, pyrazine, piperidine, piperazine, triazine, pyrrole, pyrazole, imidazole, morpholine, oxazole, and oxazine. Preferred nitrogen-containing ring moieties are triazole, piperidine, piperazine, triazine, and morpholine; more preferably triazole, piperazine, and triazine. If the nitrogen-containing ring moiety is triazine, it is preferably 1,3,5-triazine, more preferably 1,3,5-triazine substituted at positions 2, 4, and 6 of the ring; even more preferably the substituent is an amino group. Some of the glow inhibitors in practice of the present invention are organic compounds that typically contain multiple rings, each ring having at least two nitrogen atoms within the ring; preferably the rings are six-membered rings. The ring moiety may have one or more substituents that can be bonded to the ring carbon atoms or to the ring nitrogen atoms(s). Preferably the substituents are hydrocarbyl or nitrogen-containing. If the substituent is nitrogen-containing, it is sometimes preferably an amino group.

[0024] In some preferred embodiments, the glow inhibitor contains nitrogen in an amount of about 10% by weight or more, and phosphorus in an amount of about 10% by weight or more, with nitrogen and phosphorus in a nitrogen:phosphorus ratio of about 0.4:1 to about 4:1N:P on a weight basis. In these preferred embodiments, the glow inhibitor preferably has a molecular weight in the range of 125 g / mol to about 2765 g / mol. In some preferred embodiments, the glow inhibitor preferably has a molecular weight in the range of 125 g / mol to about 700 g / mol.

[0025] Suitable growth inhibitors include 1,3,5-triazine-2,4,6-triamine phosphate (often called polymelamine polyphosphate); poly(zinc phosphate)melamine; poly-[2,4-(piperazine-1,4-yl)-6-(morpholin-4-yl)-1,3,5-triazine; a mixture of 2,5,8-triamino-1,3,4,6,7,9,9b-heptazaphenalene and 2,2'-iminobis(4,6-diamino-1,3,5-triazine); a mixture of 55-65% piperazine pyrophosphate and 35-45% phosphate compounds; ammonium polyphosphate and poly-[2,4-(piperazine A mixture of radin-1,4-yl)-6-(morpholin-4-yl)-1,3,5-triazine; ammonium polyphosphate, carbon booster, and poly-[2,4-(piperazin-1,4-yl)-6-(morpholin-4-yl)-1,3,5-triazine; a mixture of 2,5,8-triamino-1,3,4,6,7,9,9b-heptazaphenalene and 2,2'-iminobis(4,6-diamino-1,3,5-triazine; piperazine pyrophosphate; 2,2'-methylenebis(6-2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyrate Examples include 2-(2-hydroxy-5-methylphenyl)benzotriazole; 2-(4,6-diphenyl-1,3,5-triazine-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol; 1,2,3,4-butanetetracarboxylic acid polymers with 2,2-bis(hydroxymethyl)-1,3-propanediol and 3-hydroxy-2,2-dimethylpropanal, 1,2,2,6,6-pentamethyl-4-piperidinyl ester; 1,10-bis(2,2,6,6-tetramethyl-4-piperidinyl)decandioate; and bis(1-undecanoxy-2,2,6,6-tetramethyl-4-piperidinyl) carbonate. If necessary, mixtures of two or more growth inhibitors can be used. Preferred growth inhibitors include melamine polyphosphate and mixtures of aluminum diethylphosphinate, melamine polyphosphate, and zinc borate. The effectiveness of a particular glow inhibitor is affected by the brominated flame retardants and other components present in the composition.

[0026] The glow inhibitor is typically present in an amount of about 0.5% by weight or more, preferably 1% by weight or more, more preferably about 2% by weight or more, based on the total weight of the flame retardant additive composition, especially when the glow inhibitor and brominated flame retardant are the sole components of the flame retardant additive composition. In other embodiments, especially when the glow inhibitor and brominated flame retardant are the sole components of the flame retardant additive composition, the glow inhibitor is preferably present in an amount of about 10% by weight or more, more preferably about 15% by weight or more, based on the total weight of the additive composition.

[0027] When the glow inhibitor is poly-[2,4-(piperazine-1,4-yl)-6-(morpholin-4-yl)-1,3,5-triazine and / or piperazine polyphosphate], the amount of the glow inhibitor is preferably about 1.5% by weight or more.

[0028] When one or more components are present in the flame retardant additive composition in addition to the glow inhibitor and the brominated flame retardant, the glow inhibitor is usually present in an amount of about 0.5% by weight or more, preferably about 1% by weight or more, and more preferably about 1.3% by weight or more, based on the total weight of the additive composition. In some embodiments, the glow inhibitor is present in an amount of about 0.5% to about 20% by weight, preferably about 1% to about 17% by weight, and more preferably about 1.3% to about 16% by weight, based on the total weight of the additive composition.

[0029] Any components that may or may be present in a flame retardant additive composition include inorganic compounds, antioxidants, impact modifiers, compatibilizers, halogenated polyethylenes, pigments, flame retardant synergists, anti-dripping agents, dyes, light stabilizers, UV stabilizers, fillers, defoamers, antimicrobial agents, biocides, buffers, pH stabilizers, fixatives, antistatic agents, antifouling agents, wetting agents, softeners, water repellents, fluorescent whitening agents, plasticizers, emulsifiers, acid scavengers, radical scavengers, metal scavengers or deactivators, processing aids, mold release agents, lubricants, anti-blocking agents, antistatic agents, slip agents, foaming agents, anti-fogging agents, reinforcing agents, coupling agents, nucleating agents, other flame retardants, and other heat stabilizers.

[0030] Preferred optional components include inorganic compounds, antioxidants, impact modifiers, compatibilizers, halogenated polyethylenes, and pigments. In some preferred embodiments, one or more antioxidants, one or more compatibilizers, one or more impact modifiers, one or more halogenated polyethylenes, and / or one or more pigments are present in the additive composition. In some preferred embodiments, at least one inorganic compound and one or more other optional components selected from antioxidants, impact modifiers, compatibilizers, and halogenated polyethylenes are present in the flame retardant additive composition.

[0031] Inorganic compounds are preferred types of any component. When used throughout this document, "inorganic compounds" refers to a preferred type of any component. The term "minute" refers to one or more inorganic compounds containing one or more metal atoms that do not have a hydrocarbyl group directly bonded to a metal atom(s). More preferably, at least one inorganic compound is present in the flame retardant additive composition.

[0032] The inorganic compounds summarized here are often classified separately as flame retardant synergists, fillers, pigments, etc. The presence of one or more inorganic compounds has sometimes been observed to have a beneficial effect on afterflame time (burning time) and / or glow time when examined in flame retardant polyolefin compositions. Afterflame time is defined in the UL-94 vertical combustion test as the time that a material continues to emit flame after the ignition source has been removed. As mentioned above, afterglow time or glow time is defined in the UL-94 vertical combustion test as "the length of time that afterglow persists under specific conditions," and afterglow or glow is defined in the UL-94 vertical combustion test as "the persistence of incandescent combustion after both the removal of the ignition source and the cessation of all combustion."

[0033] Suitable inorganic compounds in practice of the present invention include talc, ammonium phosphate, ammonium phosphinate, antimony trioxide, antimony pentoxide, antimony phosphate, aluminum phosphinate, aluminum diethylphosphinate, sodium antimonate, calcium stearate, calcium borate, calcium phosphinate, magnesium hydroxide, magnesium aluminum carbonate hydroxide, zinc borate, zinc oxide, zinc stannate, zinc sulfide, zinc phosphate, zinc phosphinate, diethylzinc phosphate, zinc molybdate, tin(IV) oxide, and zinc dioxide. Examples include tan, titanium phosphate, α-zirconium phosphate, wollastonite, hydrotalcite, silane-modified aluminum silicate, glass fibers, and clays containing smectites such as montmorillonite, bentonite, nontronite, hectorite, laponite, beiderite, volconscoite, soconite, stevensite, and saponite; kaolin such as halloysite; mica such as reddikite; rectolite; thalassovit; keniite; permatite; vermiculite; attapulgite; and illite. If necessary, mixtures of two or more inorganic compounds may be used, and in some embodiments, more than one inorganic compound is preferred.

[0034] Preferred inorganic compounds include talc, antimony trioxide, zinc borate, aluminum phosphinate, aluminum diethylphosphinate, calcium phosphinate, and hydrotalcite, as well as combinations of talc and antimony trioxide. The combination of talc and antimony trioxide may be the only inorganic compound, and one or more other inorganic compounds may be present in the additive composition. In some preferred embodiments, the inorganic compound is a combination of talc and antimony trioxide, and at least one inorganic compound selected from zinc borate, aluminum phosphinate, aluminum diethylphosphinate, calcium phosphinate, and / or hydrotalcite.

[0035] When present in a flame retardant additive composition, the inorganic compound is present in an amount of about 10% by weight or more, preferably about 15% by weight or more, more preferably about 25% by weight or more, or about 10% to about 70% by weight, preferably about 15% to about 60% by weight, more preferably about 15% to about 60% by weight, based on the total weight of the additive composition. If more than one inorganic compound constitutes the inorganic component of the additive composition, these values ​​refer to the total amount of inorganic compounds present in the additive composition.

[0036] If talc is present in the flame retardant additive composition, the amount of talc is about 10% by weight or more, preferably about 12% by weight or more, or about 10% to about 50% by weight, preferably about 12% to about 45% by weight, and more preferably about 12% to about 40% by weight, based on the total weight of the additive composition. If antimony trioxide is present in the flame retardant additive composition, the amount of antimony trioxide is about 2.0% by weight or more, preferably about 2.5% by weight or more, or about 2.0% to about 35% by weight, preferably about 2.5% to about 25% by weight, based on the total weight of the additive composition. The amounts are in percent. If zinc borate, aluminum phosphinate, aluminum diethylphosphinate, and / or calcium phosphinate are present in the flame retardant additive composition, each is present in an amount of about 0.5% to about 10% by weight, preferably about 0.7% to about 9% by weight, based on the total weight of the additive composition. If hydrotalcite is present in the flame retardant additive composition, it is present in an amount of about 0.1% to about 5% by weight, preferably about 0.1% to about 1% by weight, based on the total weight of the additive composition.

[0037] Antioxidants that can be used in practice of the present invention include phenolic antioxidants, thioesters, aromatic amines, phosphinates, and phosphorus antioxidants. Preferred antioxidants include 2,6-di-tert-butyl-4-methylphenol, tetrakis(3-(4-hydroxy-3,5-di-tert-butylphenyl)propionyloxymethyl)methane, 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-s-triazine-2,4,6(1H,3H,5H)trione, octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate, 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, and 4,4'-methylenebis(2,6- Di-tert-butyl-phenol), ethylenebis(oxyethylene)bis-(3-(5-tert-butyl-4-hydroxy-m-tolyl)-propionate), N,N'-(hexane-1,6-diyl)bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl-00propionamide), hexadecyl-3,5-di-t-butyl-4-hydroxybenzoate, 2,2'-thiodiethylenebis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], 3-(3'5'-di-t-butyl-4'-hydroxyphenyl)propionic acid C 13 ~C 15 Linear and branched alkyl esters, 3-(3',5'-di-t-butyl-4'-hydroxyphenyl)propionic acid C9-C 11Linear and branched alkyl esters, 2,2'-methylenebis(6-tert-butyl-4-methylphenol), 2,2'-ethylidenebis(4,6-di-tert-butylphenol), (1,1-di-tert-butyl)-4-hydroxyphenyl)methyl)ethylphosphonate, reaction products of N-phenylbenzeneamine and 2,4,4-trimethylpentene, dimyristyl thiodipropionate, distearyl disulfide, tetrakis(β-laurylthiopropionate)pentaerythritol 3,3'-Dioctadecyl thiodipropanoate, 3,3'-Didodecyl thiodipropanoate, Tris-(2,4-di-tert-butylphenyl) phosphate, Bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphate, (2,4,6-tri-tert-butylphenyl)(2-butyl-2-ethyl-1,3-propanediol) phosphate, Tetrakis(2,4-di-tert-butylphenyl)-4,4'-Biphenylene diphosphinate, Distearyl pentaerythritol diphosphate Litol, bis(2,4-dicumylphenyl)pentaerythritol diphosphate, tris(dipropylene glycol) phosphate, poly(dipropylene glycol)phenyl phosphate, diphenylisodecyl phosphate, phenyldiisodecyl phosphate, heptakis(dipropylene glycol) triphosphate, tris(nonylphenyl) phosphate, bis(2,6-di-tert-butyl-4-methylphenyl)pentaerythritol diphosphate, fluorophosphinate 2,2'-ethylidenebis(4,6-di Examples include tris(2,4-di-tert-butylphenyl), 2,2'-methylenebis(4,6-di-tert-butylphenyl)octyl-phosphate, trilauryl trithiophosphite, 1,2-bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamoyl)hydrazine, and a 1:1:2 combination of (3,5-di-tert-butyl-4-hydroxyphenyl)methylethoxyphosphinate calcium, polyethylene wax, and tris(2,4-di-tert-butylphenyl) phosphate. A mixture of two or more antioxidants can be used.Preferred antioxidants include tetrakis(3-(4-hydroxy-3,5-di-tert-butylphenyl)propionyloxymethyl)methane and tris-(2,4-di-tert-butylphenyl)phosphite; more preferably tetrakis(3-(4-hydroxy-3,5-di-t. This is a combination of ert-butylphenyl)propionyloxymethyl)methane and tris-(2,4-di-tert-butylphenyl) phosphite.

[0038] The antioxidant is present in an amount of about 0.1% by weight or more, preferably about 0.2% by weight or more, or about 0.1% to about 2% by weight, preferably about 0.2% to about 1% by weight, based on the total weight of the additive composition. If multiple antioxidants are present in the additive composition, these values ​​refer to the total amount of antioxidants present in the additive composition.

[0039] Generally, impact modifiers are rubber or elastomers. Suitable impact modifiers in practice of the present invention include ethylene octene copolymer and ethylene hexene copolymer. Ethylene octene copolymer is a preferred impact modifier in practice of the present invention. Mixtures of impact modifiers may be used as needed.

[0040] The impact modifier is typically present in an amount of about 1% by weight or more, preferably about 3% by weight or more, or about 1% to about 40% by weight, preferably about 3% to about 30% by weight, and more preferably about 7% to about 20% by weight, based on the total weight of the additive composition. If multiple impact modifiers are present in the additive composition, these values ​​refer to the total amount of impact modifiers present in the additive composition.

[0041] The compatibilizer may be a thermoplastic elastomer, a maleic oxide copolymer of an olefin homopolymer or copolymer, or a polymer catalyst formed in situ. Suitable compatibilizers for use in the practice of the present invention include sodium ionomers of styrene-ethylene butadiene copolymers, particularly styrene-ethylene / butylene linear triblock copolymers, maleic anhydride-modified polypropylene homopolymers, and ethylene / methacrylic acid copolymers. Mixtures of compatibilizers can be used. A preferred compatibilizer is styrene-ethylene / butylene linear triblock copolymer.

[0042] In flame retardant additive compositions, the amount of compatibilizer is often 0.5% by weight or more, preferably about 3% by weight or more, or about 0.5% to about 40% by weight, preferably about 3% to about 30% by weight, and more preferably about 3% to about 20% by weight, based on the total weight of the additive composition. If multiple compatibilizers are present in the additive composition, these values ​​refer to the total amount of compatibilizers present in the additive composition.

[0043] Halogenated polyethylene is polyethylene containing halogen atoms. Suitable halogenated polyethylenes include polytetrafluoroethylene and chlorinated polyethylene. Mixtures of halogenated polyethylene can be used.

[0044] The halogenated polyethylene is present in an amount of about 0.1% by weight or more, preferably about 0.2% by weight or more, and more preferably about 0.5% by weight or more, based on the total weight of the additive composition. In some embodiments, the halogenated polyethylene is present in an amount of about 0.1% to about 10% by weight, preferably about 0.2% to about 5% by weight, and more preferably about 0.5% to about 3% by weight, based on the total weight of the additive composition. If multiple halogenated polyethylenes are present in the flame retardant additive composition, these values ​​refer to the total amount of halogenated polyethylene present in the flame retardant additive composition.

[0045] Pigments are substances that impart color to polymers, particularly polyolefins, and are generally used only when color is desired for a polyolefin composition. Suitable pigments for the practice of the present invention include mixed oxides of chromium, antimony, and titanium (Brown 24), mixed compounds of chromium, nickel, and titanium (Yellow 53), 1,8-bis(phenylthio)anthracene-9,10-dione (Solvent Yellow 163), titanium dioxide, and carbon black. Mixtures of two or more pigments can be used.

[0046] The amount of pigment is about 30% by weight or less, preferably about 20% by weight or less, more preferably about 10% by weight or less, based on the total weight of the additive composition, or about 0% to about 30% by weight, preferably about 0% to about 20% by weight, more preferably about 0% to about 10% by weight. If multiple pigments are present in the flame retardant additive composition, these values ​​refer to the total amount of pigments present in the flame retardant additive composition.

[0047] In some preferred embodiments, the glow inhibitor is melamine polyphosphate, and the inorganic compound includes zinc borate and aluminum diethylphosphinate. More preferably, when the glow inhibitor is melamine polyphosphate and the inorganic compound includes zinc borate and aluminum diethylphosphinate, the brominated flame retardant is a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, even more preferably about 72% to about 76% by weight of bromine. In these preferred embodiments, the amount of melamine polyphosphate is about 2% to about 5% by weight based on the total weight of the flame retardant additive composition; the total amount of the inorganic compound is about 25% to about 60% by weight based on the total weight of the flame retardant additive composition; and more preferably, talc and antimony trioxide are also present in the composition.

[0048] In some preferred embodiments, the glow inhibitor is melamine polyphosphate, and the inorganic compound includes talc and antimony trioxide. More preferably, when the glow inhibitor is melamine polyphosphate and the inorganic compound includes talc and antimony trioxide, the brominated flame retardant is a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, even more preferably about 72% to about 76% by weight of bromine. In these preferred embodiments, the amount of melamine polyphosphate is about 2% to about 5% by weight based on the total weight of the flame retardant additive composition; the total amount of the inorganic compound is about 25% to about 60% by weight based on the total weight of the flame retardant additive composition. Preferably, at least one phenolic antioxidant is present in the composition. More preferably, chlorinated polyethylene and / or polytetrafluoroethylene are also present, each in an amount of about 0.2% to about 5% by weight.

[0049] In another preferred embodiment, the glow inhibitor is melamine polyphosphate, and there are inorganic compounds including antimony trioxide and talc, and an impact modifier, preferably ethylene octene copolymer, and more preferably both chlorinated polyethylene and polytetrafluoroethylene, each in an amount of about 0.2% to about 5% by weight based on the total weight of the flame retardant additive composition. The ethylene octene copolymer is preferably in an amount of about 3% to about 30% by weight based on the total weight of the flame retardant additive composition. More preferably, the brominated flame retardant is a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, even more preferably about 72% to about 76% by weight of bromine. In these preferred embodiments, melamine polyphosphate is about 1.25% to about 5% by weight based on the total weight of the flame retardant additive composition; the total amount of inorganic compounds is about 25% to about 60% by weight based on the total weight of the flame retardant additive composition. Preferably, at least one phenolic antioxidant is also present in the flame retardant additive composition.

[0050] In yet another preferred embodiment, the glow inhibitor is melamine polyphosphate, and there are also inorganic compounds containing antimony trioxide and talc, and an impact modifier, preferably ethylene octene copolymer, and more preferably both chlorinated polyethylene and polytetrafluoroethylene, each in an amount of about 0.2% to about 5% by weight based on the total weight of the flame retardant additive composition. The ethylene octene copolymer is preferably in an amount of about 3% by weight based on the total weight of the flame retardant additive composition. The amount is approximately 30% by weight. More preferably, the brominated flame retardant comprises a) a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, more preferably about 72% to about 76% by weight of bromine, and b) decabromodiphenylethane or N,N-ethylene-bis(tetrabromophthalimide). In these preferred embodiments, melamine polyphosphate is about 1.25% to about 5% by weight based on the total weight of the flame retardant additive composition; the total amount of inorganic compounds is about 25% to about 60% by weight based on the total weight of the flame retardant additive composition. Preferably, at least one phenolic antioxidant is also present in the flame retardant additive composition.

[0051] In yet another preferred embodiment, the glow inhibitor is a mixture of aluminum diethylphosphinate, melamine polyphosphate, and zinc borate, and there is an inorganic compound containing antimony trioxide, and an impact modifier, preferably ethylene octene copolymer, and more preferably both chlorinated polyethylene and polytetrafluoroethylene, each in an amount of about 0.2% to about 5% by weight based on the total weight of the flame retardant additive composition. The ethylene octene copolymer is preferably in an amount of about 3% to about 30% by weight based on the total weight of the flame retardant additive composition. More preferably, the brominated flame retardant is a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, even more preferably about 72% to about 76% by weight of bromine. In these preferred embodiments, the mixture of aluminum diethylphosphinate, melamine polyphosphate, and zinc borate is about 2% to about 10% by weight based on the total weight of the flame retardant additive composition; the total amount of inorganic compounds is about 10% to about 25% by weight based on the total weight of the flame retardant additive composition. Preferably, at least one phenolic antioxidant is also present in the flame retardant additive composition.

[0052] In yet another preferred embodiment, the glow inhibitor is melamine polyphosphate, and there is an inorganic compound containing antimony trioxide and talc, and a compatibilizer, preferably styreneethylene / butylene linear triblock copolymer, and more preferably polytetrafluoroethylene, with the amount of polytetrafluoroethylene being about 0.2% to about 5% by weight based on the total weight of the flame retardant additive composition. The amount of styreneethylene / butylene linear triblock copolymer is preferably about 3% to about 30% by weight based on the total weight of the flame retardant additive composition. More preferably, the brominated flame retardant is a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, even more preferably about 72% to about 76% by weight of bromine. In these preferred embodiments, the amount of melamine polyphosphate is about 2% to about 5% by weight based on the total weight of the flame retardant additive composition; the total amount of the inorganic compound is about 25% to about 60% by weight based on the total weight of the flame retardant additive composition. Preferably, at least one phenolic antioxidant is also present in the flame retardant additive composition.

[0053] In another preferred embodiment, the glow inhibitor is a mixture of aluminum diethylphosphinate, melamine polyphosphate, and zinc borate, and there is an inorganic compound containing antimony trioxide, and a compatibilizer, preferably a styreneethylene / butylene linear triblock copolymer, and more preferably both chlorinated polyethylene and polytetrafluoroethylene, each in an amount of about 0.2% to about 5% by weight based on the total weight of the flame retardant additive composition. The styreneethylene / butylene linear triblock copolymer is preferably in an amount of about 3% to about 30% by weight based on the total weight of the flame retardant additive composition. More preferably, the brominated flame retardant is a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, even more preferably about 72% to about 76% by weight of bromine. In these preferred embodiments, the glow inhibitor is about 2% to about 10% by weight based on the total weight of the flame retardant additive composition; the total amount of inorganic compounds is based on the total weight of the flame retardant additive composition. The amount is approximately 5% to 25% by weight. Preferably, at least one phenolic antioxidant is also present in the flame retardant additive composition.

[0054] Process for forming flame retardant additive compositions The process of the present invention for forming the flame-retardant additive composition of the present invention comprises combining at least one brominated flame retardant and at least one glow inhibitor. The amount of the glow inhibitor is usually about 0.5% by weight or more based on the total weight of the additive composition. The brominated flame retardant is a brominated anionic styrene polymer containing aromatically linked bromine and having a number average molecular weight of about 750 to about 7500 and / or a bromine content of about 60% by weight to about 77% by weight, a brominated anionic chain-transfer vinyl aromatic polymer containing about 70% by weight or more bromine, or any two or more mixtures thereof.

[0055] The components of a flame retardant additive composition can be combined in any order. For example, a brominated flame retardant and a glow inhibitor can be combined, followed by at least one inorganic compound. Alternatively, a glow inhibitor and one or more other components, such as at least one inorganic compound, can be mixed together and then combined with the brominated flame retardant. Another method involves combining all components simultaneously.

[0056] Most or all components of a flame retardant additive composition are dry solids and can be combined by various dry blending techniques. If necessary, dry blend mixtures of components can be melted together. Alternatively, one or more components may be melted together without prior dry blending. Components can be blended or mixed in small amounts as needed.

[0057] The brominated flame retardant and its preferred form, as well as its amount and preferred amount, are as described above for the flame retardant additive composition.

[0058] The glow inhibitor and its preferred counterparts, as well as their amounts and preferred amounts, are as described above for the flame retardant additive composition.

[0059] Any components that can be introduced during the preparation of the flame retardant additive composition, preferred components, and their amounts and preferred amounts are as described above for the flame retardant additive composition.

[0060] Flame-retardant polyolefin composition The flame-retardant polyolefin composition of the present invention, i) with at least one growth inhibitor; ii) with at least one inorganic compound; iii) comprising at least one brominated flame retardant and iv) at least one polyolefin, wherein the brominated flame retardant contains aromatically linked bromine, and a) Brominated anionic styrene polymer having a number average molecular weight of approximately 750 to approximately 7500, and / or a bromine content of approximately 60% to approximately 77% by weight. b) Brominated anionic chain-transfer vinyl aromatic polymer containing approximately 70% by weight or more of bromine, Or a mixture of any two or more of these. The flame-retardant polyolefin composition contains at least 0.25% by weight of a glow inhibitor based on the total weight of the flame-retardant polyolefin composition, and the flame-retardant polyolefin composition contains at least 5% by weight of an inorganic compound based on the total weight of the flame-retardant polyolefin composition.

[0061] The optional components that are often present in flame-retardant polyolefin compositions are as described above for flame-retardant additive compositions.

[0062] Suitable polyolefins in practice of the present invention include polyethylene such as high-density polyethylene (HDPE), low-density polyethylene (LDPE), and linear low-density polyethylene (LLDPE); polypropylene; copolymers formed from propylene and ethylene, including ethylene-propylene diene polymer (EPDM); and ethylene and / or propylene copolymers with other copolymerizable olefin monomers. Preferred polyolefins include polyethylene, polypropylene, and copolymers formed from propylene and ethylene. Mixtures of polyolefins can be used as needed.

[0063] The glow inhibitors and preferred ones are as described above. The amount of glow inhibitor in a flame-retardant polyolefin composition is usually about 0.25% by weight or more, preferably about 0.5% by weight or more, or about 0.25% to about 15% by weight, preferably about 0.5% to about 12% by weight of glow inhibitor, more preferably about 0.75% to about 7.5% by weight, even more preferably about 0.5% to about 5% by weight of glow inhibitor, and even more preferably about 1% to about 3% by weight.

[0064] The inorganic compounds and their preferred types are as described above. The total amount of inorganic compounds is about 5% by weight or more, preferably about 8% by weight or more, and more preferably about 12% by weight or more, based on the total weight of the flame-retardant polyolefin composition. In some embodiments, the total amount of inorganic compounds is usually about 5% to about 35% by weight, preferably about 8% to about 28% by weight, and more preferably about 12% to about 28% by weight, based on the total weight of the flame-retardant polyolefin composition. If the amount of inorganic compounds is less than about 10% by weight, the polyolefin composition may pass some flammability tests, such as the UL-94 Vertical Burn Test V-2 standard, but it is often preferable that the polyolefin composition usually meets more stringent standards, such as the UL-94 Vertical Burn Test V-0, which requires a larger amount of brominated flame retardant.

[0065] If talc is present in the flame-retardant polyolefin composition, the amount of talc is about 10% by weight or more, preferably about 12% by weight or more, or about 10% to about 40% by weight, preferably about 12% to about 35% by weight, and more preferably about 12% to about 30% by weight, based on the total weight of the olefin composition. If antimony trioxide is present in the flame-retardant polyolefin composition, the amount of antimony trioxide is about 1.5% by weight or more, preferably about 2% by weight or more, or about 1.5% to about 20% by weight, preferably about 2% to about 15% by weight, based on the total weight of the olefin composition. If zinc borate, aluminum phosphinate, aluminum diethylphosphinate, and / or calcium phosphinate are present in the flame-retardant olefin composition, each is present in an amount of about 0.25% to about 10% by weight, preferably about 0.75% to about 5% by weight, based on the total weight of the olefin composition. If hydrotalcite is present in the flame-retardant olefin composition, it is present in an amount of about 0.1% to about 5% by weight, preferably about 0.2% to about 1% by weight, based on the total weight of the olefin composition.

[0066] In some preferred embodiments, the brominated flame retardant is a brominated anion chain transfer vinyl aromatic polymer, which contains one or more inorganic compounds, one of which is antimony trioxide, and the total amount of inorganic compounds in the flame retardant polyolefin composition is preferably about 2% to about 25% by weight based on the total weight of the flame retardant polyolefin composition.

[0067] The characteristics and preferred properties of brominated flame retardants are as described above for flame retardant additive compositions. In flame retardant polyolefin compositions, the amount of flame retardant is usually about 15% by weight or more, preferably about 20% by weight or more, and more preferably about 24% by weight or more, based on the total weight of the flame retardant polyolefin composition. In some embodiments, the amount of flame retardant is about 15% to about 37% by weight, preferably about 20% to about 34% by weight, more preferably about 24 to about 28% by weight.

[0068] With respect to bromine content, the flame-retardant polyolefin composition preferably contains a brominated flame retardant in an amount that provides about 5% by weight or more of bromine, more preferably about 10% by weight or more of bromine, and even more preferably about 15% by weight or more of bromine, based on the total weight of the flame-retardant polyolefin composition. In some embodiments, the brominated flame retardant is in an amount that provides about 5% to about 30% by weight of bromine, preferably about 10% to about 25% by weight of bromine, and more preferably about 15% to about 23% by weight of bromine, based on the total weight of the flame-retardant polyolefin composition. If multiple brominated flame retardants are present in the flame-retardant polyolefin composition, these values ​​refer to the total amount of bromine present in the flame-retardant polyolefin composition.

[0069] The antioxidants and their preferred types are as described above. The amount of antioxidant is about 0.05% by weight or more, preferably about 0.1% by weight or more, or about 0.05% to about 1% by weight, preferably about 0.1% to about 0.5% by weight, based on the total weight of the flame-retardant polyolefin composition. If multiple antioxidants are present in the flame-retardant polyolefin composition, these values ​​refer to the total amount of antioxidants present in the flame-retardant polyolefin composition.

[0070] The impact modifiers and their preferred types are as described above, and are present in amounts of about 0.5% by weight or more, preferably about 2% by weight or more, more preferably about 5% by weight or more, or about 0.5% to about 20% by weight, preferably about 2% to about 15% by weight, more preferably about 5% to about 10% by weight, based on the total weight of the flame-retardant polyolefin composition. If multiple impact modifiers are present in the flame-retardant polyolefin composition, these values ​​refer to the total amount of impact modifiers present in the flame-retardant polyolefin composition.

[0071] The compatibilizers and their preferred types are as described above, and are present in an amount of about 0.25% by weight or more, preferably about 1% by weight or more, or about 0.5% to about 20% by weight, preferably about 1% to about 10% by weight, based on the total weight of the flame-retardant polyolefin composition. If multiple compatibilizers are present in the flame-retardant polyolefin composition, these values ​​refer to the total amount of compatibilizers present in the flame-retardant polyolefin composition.

[0072] Halogenated polyethylene and its preferred forms are as described above, in an amount of about 0.05% by weight or more, preferably about 0.1% by weight or more, and more preferably about 0.25% by weight or more, based on the total weight of the flame-retardant polyolefin. In some embodiments, the amount of halogenated polyethylene is about 0.05% to about 5% by weight, preferably about 0.1% to about 2.5% by weight, and more preferably about 0.25% to about 1.5% by weight, based on the total weight of the flame-retardant polyolefin composition. If multiple halogenated polyethylenes are present in the flame-retardant polyolefin composition, these values ​​refer to the total amount of halogenated polyethylene present in the flame-retardant polyolefin composition.

[0073] The pigments and their preferred forms are as described above, and are present in amounts of about 15% by weight or less, preferably about 10% by weight or less, more preferably about 5% by weight or less, or about 0% to about 15% by weight, preferably about 0% to about 10% by weight, more preferably about 0% to about 5% by weight, based on the total weight of the flame-retardant polyolefin composition. If multiple pigments are present in the flame-retardant polyolefin composition, these values ​​refer to the total amount of pigments present in the flame-retardant polyolefin composition.

[0074] In some preferred embodiments, the glow inhibitor is melamine polyphosphate, and the inorganic compound includes zinc borate and aluminum diethylphosphinate. More preferably, when the glow inhibitor is melamine polyphosphate and the inorganic compound includes zinc borate and aluminum diethylphosphinate, the brominated flame retardant has a number average of about 1000 to about 4000. The composition is a brominated anionic styrene polymer having a brominated amount of about 70% to about 77% by weight of bromine, more preferably about 72% to about 76% by weight of bromine. In these preferred embodiments, the brominated flame retardant is about 20% to about 30% by weight, more preferably about 24% to about 27% by weight, based on the total weight of the flame retardant polyolefin composition; melamine polyphosphate is about 1% to about 3% by weight, based on the total weight of the flame retardant polyolefin composition; the total amount of inorganic compounds is about 20% to about 28% by weight, based on the total weight of the flame retardant polyolefin composition; and more preferably, talc and antimony trioxide are also present in the composition.

[0075] In some preferred embodiments, the glow inhibitor is melamine polyphosphate, and the inorganic compound includes talc and antimony trioxide. More preferably, when the glow inhibitor is melamine polyphosphate and the inorganic compound includes talc and antimony trioxide, the brominated flame retardant is a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, even more preferably about 72% to about 76% by weight of bromine. In these preferred embodiments, the brominated flame retardant is about 20% to about 30% by weight, more preferably about 24% to about 27% by weight, based on the total weight of the flame retardant polyolefin composition; the melamine polyphosphate is about 1% to about 3% by weight, based on the total weight of the flame retardant polyolefin composition; and the total amount of the inorganic compound is about 20% to about 28% by weight, based on the total weight of the flame retardant polyolefin composition. Preferably, at least one phenolic antioxidant is present in the composition. More preferably, chlorinated polyethylene and / or polytetrafluoroethylene are also present, each in an amount of about 0.25% to about 1.5% by weight.

[0076] In another preferred embodiment of the polyolefin composition, an impact modifier, preferably ethylene octene copolymer, is present, the glow inhibitor is melamine polyphosphate, and the inorganic compound comprises antimony trioxide and talc; more preferably, both chlorinated polyethylene and polytetrafluoroethylene are also present. If present, chlorinated polyethylene and polytetrafluoroethylene are present in amounts of about 0.25% to about 1.5% by weight, each based on the total weight of the flame-retardant polyolefin composition. In these preferred polyolefin compositions, ethylene octene copolymer is preferably present in amounts of about 2% to about 15% by weight, based on the total weight of the flame-retardant polyolefin composition. More preferably, if an impact modifier, preferably ethylene octene copolymer, is present, the glow inhibitor is melamine polyphosphate, and the inorganic compound comprises antimony trioxide and talc, the brominated flame retardant is a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, even more preferably about 72% to about 76% by weight of bromine. In these preferred embodiments, the brominated flame retardant is about 20 to about 35% by weight, more preferably about 24 to about 30% by weight, based on the total weight of the flame-retardant polyolefin composition; the melamine polyphosphate is about 0.75% to about 3% by weight, based on the total weight of the flame-retardant polyolefin composition; and the total amount of inorganic compounds is about 8% to about 28% by weight, based on the total weight of the flame-retardant polyolefin composition. Preferably, at least one phenolic antioxidant is also present in the flame-retardant polyolefin composition.

[0077] In yet another preferred embodiment of the polyolefin composition, an impact modifier, preferably ethylene octene copolymer, is present, the glow inhibitor is melamine polyphosphate, and the inorganic compounds include antimony trioxide and talc; more preferably, both chlorinated polyethylene and polytetrafluoroethylene are also present. If present, chlorinated polyethylene and polytetrafluoroethylene are each present in an amount of about 0.25% to about 1.5% by weight based on the total weight of the flame-retardant polyolefin composition. In these preferred polyolefin compositions, ethylene octene copolymer is preferably present in an amount of about 2% to about 15% by weight based on the total weight of the flame-retardant polyolefin composition. More preferably, an impact modifier, preferably ethylene octene copolymer, is present, and the glow inhibitor is melamine polyphosphate. Furthermore, if the inorganic compound contains antimony trioxide and talc, the brominated flame retardant comprises a) a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, more preferably about 72% to about 76% by weight of bromine, and b) decabromodiphenylethane or N,N-ethylene-bis(tetrabromophthalimide). In these preferred embodiments, the brominated flame retardant is about 20% to about 35% by weight, more preferably about 24% to about 30% by weight, based on the total weight of the flame retardant polyolefin composition; melamine polyphosphate is about 0.75% to about 3% by weight, based on the total weight of the flame retardant polyolefin composition; and the total amount of inorganic compounds is about 8% to about 28% by weight, based on the total weight of the flame retardant polyolefin composition. Preferably, at least one phenolic antioxidant is also present in the flame retardant polyolefin composition.

[0078] In yet another preferred embodiment of the polyolefin composition, an impact modifier, preferably ethylene octene copolymer, is present; the glow inhibitor is a mixture of aluminum diethylphosphinate, melamine polyphosphate, and zinc borate; and the inorganic compound comprises antimony trioxide; more preferably, both chlorinated polyethylene and polytetrafluoroethylene are also present. If present, chlorinated polyethylene and polytetrafluoroethylene are present in amounts of about 0.25% to about 1.5% by weight, respectively, based on the total weight of the flame-retardant polyolefin composition. In these preferred polyolefin compositions, the ethylene octene copolymer is preferably present in amounts of about 2% to about 15% by weight, based on the total weight of the flame-retardant polyolefin composition. More preferably, an impact modifier, preferably an ethylene octene copolymer, is present, the glow inhibitor is a mixture of aluminum diethylphosphinate, melamine polyphosphate, and zinc borate, and the inorganic compound contains antimony trioxide, the brominated flame retardant is a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, even more preferably about 72% to about 76% by weight of bromine. In these preferred embodiments, the brominated flame retardant is about 20% to about 35% by weight, more preferably about 24% to about 34% by weight, based on the total weight of the flame retardant polyolefin composition; the glow inhibitor is about 0.75% to about 3% by weight, based on the total weight of the flame retardant polyolefin composition; and the total amount of the inorganic compound is about 8% to about 28% by weight, based on the total weight of the flame retardant polyolefin composition. Preferably, at least one phenolic antioxidant is also present in the flame retardant polyolefin composition.

[0079] In yet another preferred embodiment of the polyolefin composition, a compatibilizer, preferably styreneethylene / butylene linear triblock copolymer, is present, the glow inhibitor is melamine polyphosphate, and the inorganic compound comprises antimony trioxide and talc; more preferably, polytetrafluoroethylene is also present. If present, the amount of polytetrafluoroethylene is about 0.25% to about 1.5% by weight based on the total weight of the flame-retardant polyolefin composition. In these preferred polyolefin compositions, the amount of styreneethylene / butylene linear triblock copolymer is preferably about 0.5% to about 20% by weight based on the total weight of the flame-retardant polyolefin composition. More preferably, when a compatibilizer, preferably a styreneethylene / butylene linear triblock copolymer, is present, the glow inhibitor is melamine polyphosphate, and the inorganic compound includes antimony trioxide and talc, the brominated flame retardant is a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, even more preferably about 72% to about 76% by weight of bromine. In these preferred embodiments, the brominated flame retardant is about 20% to about 32% by weight, more preferably about 24% to about 30% by weight, based on the total weight of the flame retardant polyolefin composition; the melamine polyphosphate is about 1% to about 3% by weight, based on the total weight of the flame retardant polyolefin composition; and the total amount of the inorganic compound is about 8% to about 28% by weight, based on the total weight of the flame retardant polyolefin composition. Preferably, at least one phenolic antioxidant is also present in the flame retardant polyolefin composition.

[0080] In another preferred embodiment of the polyolefin composition, a compatibilizer, preferably styreneethylene / butylene linear triblock copolymer, is present; the glow inhibitor is a mixture of aluminum diethylphosphinate, melamine polyphosphate, and zinc borate; and the inorganic compound includes antimony trioxide; more preferably, both chlorinated polyethylene and polytetrafluoroethylene are also present. If present, chlorinated polyethylene and polytetrafluoroethylene are present in amounts of about 0.25% to about 1.5% by weight, respectively, based on the total weight of the flame-retardant polyolefin composition. In these preferred polyolefin compositions, the styreneethylene / butylene linear triblock copolymer is preferably present in amounts of about 0.5% to about 20% by weight, based on the total weight of the flame-retardant polyolefin composition. More preferably, when a compatibilizer, preferably a styreneethylene / butylene linear triblock copolymer, is present, the glow inhibitor is a mixture of aluminum diethylphosphinate, melamine polyphosphate, and zinc borate, and the inorganic compound contains antimony trioxide and talc, the brominated flame retardant is a brominated anionic styrene polymer having a number average molecular weight of about 1000 to about 4000 and about 70% to about 77% by weight of bromine, even more preferably about 72% to about 76% by weight of bromine. In these preferred embodiments, the brominated flame retardant is about 20% to about 34% by weight, more preferably about 24% to about 32% by weight, based on the total weight of the flame retardant polyolefin composition; the glow inhibitor is about 1% to about 3% by weight, based on the total weight of the flame retardant polyolefin composition; and the total amount of the inorganic compound is about 8% to about 28% by weight, based on the total weight of the flame retardant polyolefin composition. Preferably, at least one phenolic antioxidant is also present in the flame retardant polyolefin composition.

[0081] Process for forming flame-retardant polyolefin compositions The process for forming the flame-retardant polyolefin composition of the present invention comprises combining at least one brominated flame retardant, at least one glow inhibitor, and at least one inorganic compound. A flame retardant amount of brominated flame retardant is used. The brominated flame retardant is a brominated anionic styrene polymer containing aromatically linked bromine and having a number average molecular weight of about 750 to about 7500 and / or a bromine content of about 60% to about 77% by weight, and / or a brominated anion chain transfer vinyl aromatic polymer containing about 70% by weight or more of bromine.

[0082] When preparing the flame-retardant polyolefin composition of the present invention, the individual components of the flame retardant composition of the present invention can be blended separately, and / or can be subcombinations with a substrate or host polymer in appropriate proportions.

[0083] When a flame-retardant polyolefin composition is formed from a flame-retardant additive composition, the flame-retardant additive composition is usually about 40% by weight or more of the flame-retardant polyolefin composition, or about 40% to about 80% by weight of the flame-retardant polyolefin composition, based on the total weight of the flame-retardant polyolefin composition.

[0084] The flame retardant additive compositions, flame retardant polyolefin compositions, and masterbatches of the present invention can be prepared using various known procedures. The compounding of the brominated flame retardant and other components can be carried out in compounding equipment such as a single-screw extruder, twin-screw extruder, or Buss kneader. Preferably, compounding is carried out using an extruder, more preferably a twin-screw extruder. Other components used in the practice of the present invention can be added to the first feed port of the extruder or further downstream of the extruder. When using a twin-screw extruder and glass fibers are a component, it is desirable to add the glass fibers in the downstream part of the extruder to avoid excessive glass fiber cutting. In an extruder, many components usually melt when mixed together. The extruded material from the extruder is usually converted into granules or pellets by cooling the strands of the extruded polymer and subdividing the solidified strands into granules or pellets, or by subjecting the extruded material to simultaneous die-face pelletization and water or air cooling. If necessary, the compositions of the present invention can be formulated as a powder blend or granule blend of the components of the composition. It can be transformed.

[0085] The brominated flame retardants and their preferred forms are as described above for the flame retardant additive composition. The amount and preferred amount of the brominated flame retardant are as described above for the flame retardant polyolefin composition.

[0086] Brominated flame retardants, glow inhibitors, inorganic compounds, antioxidants, impact modifiers, compatibilizers, halogenated polyethylenes, pigments, and preferred thereof are as described above for flame retardant additive compositions. The amounts and preferred amounts of these components are as described above for flame retardant polyolefin compositions.

[0087] Polyolefins and preferred examples thereof are as described above for flame-retardant polyolefin compositions.

[0088] Additional flame-retardant polyolefin composition Another flame-retardant polyolefin composition of the present invention comprises at least one polyolefin and at least one brominated flame retardant in a flame retardant amount, wherein the brominated flame retardant is a brominated anionic styrene polymer containing aromatically linked bromine and having a number average molecular weight of about 750 to about 7500 and / or a bromine content of about 60% to about 77% by weight. In these flame-retardant polyolefin compositions, the amount of flame retardant is preferably about 5% by weight or more, more preferably about 10% by weight or more, and at this amount the polyolefin composition may pass several flammability tests, such as the V-2 standard in the UL-94 vertical combustion test. It is often preferable for the polyolefin composition to meet more stringent standards, such as V-0 in the UL-94 vertical combustion test, for which a larger amount of brominated flame retardant is usually required, typically about 23% by weight or more. The amount of flame retardant is preferably about 23% by weight or more, more preferably about 23.5% by weight or more, based on the total weight of the flame-retardant polyolefin composition. In some of these embodiments, the amount of flame retardant is preferably about 23% to about 30% by weight, and more preferably about 23.5% to about 27% by weight, based on the total weight of the flame retardant polyolefin composition.

[0089] The number-average molecular weight and its preferences, as well as the bromine content of the brominated anionic styrene polymer and its preferences, are as described above. The other components of these flame-retardant polyolefin compositions, their preferences, and the amounts of the other components and their preferences are as described above, except that glow inhibitors are not present in these flame-retardant polyolefin compositions. The process for forming these flame-retardant polyolefin compositions is the same as described above, except that glow inhibitors are not included as one of the components.

[0090] Masterbatch A masterbatch can be formed comprising a polyolefin and at least one brominated flame retardant. The masterbatch is typically a mixture having a high concentration of brominated flame retardant relative to the polyolefin. Typically, the masterbatch is later blended with more polyolefin to form a final product in which the brominated flame retardant, other components, and polyolefin are in the desired proportions. In practice of the present invention, the brominated flame retardant is a) a brominated anionic styrene polymer having a number average molecular weight of about 750 to about 7500 and / or a bromine content of about 60% to about 77% by weight, b) a brominated anionic chain-transfer vinyl aromatic polymer containing about 70% by weight or more bromine, or any two or more mixtures thereof; brominated anionic styrene polymers are preferred.

[0091] In a masterbatch, the amount of brominated flame retardant is usually about 10% to 90% by weight, preferably about 20% to 80% by weight, based on the total weight of the masterbatch. However, the amount of brominated flame retardant may be as high as about 99% by weight based on the total weight of the masterbatch. Expressed as a weight ratio, the amount of brominated flame retardant to polyolefin can be in the range of about 1:99 to 99:1. A typical ratio of the masterbatch according to the present invention is about 90:10 brominated flame retardant:polyolefin by weight, preferably about 80:20, and more preferably about 70:30 brominated flame retardant:polyolefin. In some embodiments, the weight ratio of brominated flame retardant to polyolefin is in the range of about 99:1 to about 50:50. In the masterbatch, the amount of brominated flame retardant is the total amount of brominated flame retardants if multiple brominated flame retardants are present in the masterbatch. If the only components of the masterbatch are brominated flame retardant and polyolefin, the brominated flame retardant is preferably a brominated anionic styrene polymer.

[0092] When a glow inhibitor is present in the masterbatch together with a brominated flame retardant and a polyolefin, the weight ratio can be expressed as a ratio of components, where the weight ratio of the brominated flame retardant can be approximately 98 to approximately 20, the weight ratio of the polyolefin can be approximately 1 to approximately 80, and the weight ratio of the glow inhibitor can be approximately 1 to approximately 20. For example, the weight ratio can be approximately 97:1.5:1.5 to approximately 50:49:1 for brominated flame retardant:polyolefin:glow inhibitor. In some embodiments, the weight ratio of the brominated flame retardant to the polyolefin and glow inhibitor is in the range of approximately 90:2.5:7.5 to 50:40:10; in other embodiments, a ratio of approximately 38:60:2 for brominated flame retardant:polyolefin:glow inhibitor is preferable. In yet another embodiment, the weight ratio of the brominated flame retardant to the polyolefin and glow inhibitor is in the range of approximately 75:5:15 to approximately 50:46:4. The amount of glow inhibitor in these ratios represents the total amount of glow inhibitors when multiple glow inhibitors are present in the masterbatch. The glow inhibitors and their preferences are as described above.

[0093] When an inorganic compound is present in the masterbatch together with a brominated flame retardant and a polyolefin, the weight ratio can be expressed as the ratio of the components, where the weight ratio of the brominated flame retardant can be about 98 to about 20, the weight ratio of the polyolefin can be about 1 to about 80, and the weight ratio of the inorganic compound can be about 1 to about 20. For example, the weight ratio can be in the range of brominated flame retardant:polyolefin:inorganic compound, from about 80:9:11 to about 50:36:14; this ratio can vary very widely. In some embodiments, the weight ratio of the brominated flame retardant to the polyolefin and inorganic compound is in the range of about 50:10:40 to about 50:33.5:16.5. The amount of inorganic compound in these ratios is the total amount of inorganic compounds when multiple inorganic compounds are present in the masterbatch. The inorganic compounds and their preferences are as described above.

[0094] Some types of components, for example, inorganic compounds, may have one such compound present in the masterbatch, while one or more other inorganic compounds may be added when the masterbatch is combined with additional polyolefins. In some preferred embodiments, the masterbatch comprises a brominated flame retardant, a polyolefin, and antimony trioxide, in which the weight ratio can range from about 85:10:5 to about 40:54:16; this ratio can vary very broadly. In some embodiments, the weight ratio of the brominated flame retardant to the polyolefin and antimony trioxide is in the range of about 80:7:13 to about 47:50:3; in other embodiments, a ratio of about 60:20:20 for brominated flame retardant:polyolefin:antimony trioxide is preferable.

[0095] In some preferred embodiments, the masterbatch comprises a brominated flame retardant, a polyolefin, a glow inhibitor, and antimony trioxide. The weight ratios can be expressed as the ratio of the components, where the weight ratio of the brominated flame retardant can be about 98 to about 20, the weight ratio of the polyolefin can be about 1 to about 80, and the weight ratio of the glow inhibitor can be about 1 to about 20. The weight ratio of antimony trioxide can be approximately 1 to approximately 40. In some embodiments, the weight ratio can range from approximately 97:1.5:1.5:5.6 to approximately 50:49:1:7.2 for brominated flame retardant:polyolefin:glow inhibitor:antimony trioxide. In some embodiments, the weight ratio of brominated flame retardant to polyolefin, glow inhibitor, and antimony trioxide ranges from approximately 90:2.5:7.5:14.5 to approximately 50:40:10:3.2. The amount of glow inhibitor in these ratios is the total amount of glow inhibitor if multiple glow inhibitors are present in the masterbatch.

[0096] Other desired components as described above for the flame-retardant additive composition and the flame-retardant polyolefin composition may be included as part of the masterbatch or added when the masterbatch is mixed with additional polyolefins. The amount of such components is usually and preferably determined in a ratio such that when the masterbatch is blended with more polyolefins, the proportion is as described above for the flame-retardant polyolefin composition.

[0097] The flame-retardant polyolefin compositions of the present invention can be used to form articles by molding techniques including injection molding, gas-assisted molding, rotational molding, compression molding, blow molding, film insert molding, structural foam molding, extrusion molding, and resin transfer molding. Other techniques that can be used to form articles from the flame-retardant polyolefin compositions of the present invention include thermoforming and extrusion (e.g., of sheets, films, or fibers).

[0098] The following embodiments are provided for illustrative purposes only and are not intended to limit the scope of the invention. [Examples]

[0099] Examples - General component The following is a list of components used to prepare flame-retardant polyolefin samples in the examples. Not all listed components were used in every sample. Some components may belong to multiple categories. In the table, some of the components used are referred to by their trade names. Polyolefins Linear low-density polyethylene (Petrothene® GA564189, melt flow index: 20g / 10min at 190℃ / 2.16kg. Lyondell-Bassell). High-density polyethylene (Alathon® LR590001, melt flow index: 0.8g / 10min at 190℃ / 2.16kg. Lyondell-Bassell). Low-density polyethylene (Lone Star 220, melt flow index: 2.0 g / 10 min at 190°C / 2.16 kg. Lone Star Chemical). Polypropylene (Profax 6523, melt flow index: 4.0g / 10min at 230℃ / 2.16kg. Lyondell-Bassell). Polypropylene impact copolymer (PP7033N, melt flow index: 8g / 10min at 230℃ / 2.16kg); PP7143KNE1, Melt Flow Index: 10g / 10min at 230℃ / 2.16kg; ExxonMobil Corporation). Polypropylene impact copolymer (melt flow index: 12g / 10min and 17g / 10min at 230℃ / 2.16kg; Lone Star Chemical). Brominated flame retardants Brominated anion chain transfer polystyrene (Br-ACTSP; Albemarle Corporation) has a number average molecular weight of approximately 2087 and contains approximately 74% by weight of bromine. . Number average molecular weight (M) of approximately 2112 to 2714 n ) and brominated anionic polystyrene (Br-APS; Albemarle Corporation) having a bromine content of approximately 72.8% to 74.9% by weight. Approximately 750 number-average molecular weight (M n ) and brominated anionic polystyrene (Br-APS; Albemarle Corporation) having a bromine content of approximately 73% by weight. Decabromodiphenylethane (Saytex® 8010, Albemarle Corporation). N,N-ethylene-bis(tetrabromophthalimide) (Saytex® BT-93W, Albemarle Corporation). Growth inhibitors Melamine polyphosphate (MPP; Melapur® 200, BASF Corporation). Poly(zinc phosphate) melamine (Safire® 400, JMHuber) (Corporation). Poly-[2,4-(piperazine-1,4-yl)-6-(morpholin-4-yl)-1,3,5-triazine] (or polymer with piperazine and morpholin-2,4,6-trichloro-1,3,5-triazine reaction product; MCA PPM Triazine HF); mixture of ammonium polyphosphate and MCA PPM Triazine HF (MCA PPM Triazine 765); mixture of ammonium polyphosphate, MCA PPM Triazine HF and carbon booster (MCA PPM Triazine 770), all products of MCA Technologies GmbH. A mixture of approximately 63% aluminum diethylphosphinate, approximately 32% melamine polyphosphate, and 4%-5% zinc borate (Exolit® OP 1312, Clariant Ltd.). A mixture of 2,5,8-triamino-1,3,4,6,7,9,9b-heptazaphenalene and 2,2'-iminobis(4,6-diamino-1,3,5-triazine) (Delflam 20; Delamin Ltd.). A mixture of 55-65% piperazine pyrophosphate and 35-45% of a proprietary phosphate compound (FP-2100J; Amfine Chemical Corporation). 2,2'-Methylenebis(6-2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol (ADK STAB LA-31); 2-(2-hydroxy-5-methylphenyl)benzotriazole (ADK STAB) LA-32); 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol (ADK STAB LA-46); 1,2,3,4-butanetetracarboxylic acid polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol and 3-hydroxy-2,2-dimethylpropanal, and 1,2,2,6,6-pentamethyl-4-piperidinyl ester (CAS® registration number 101357-36-2, ADK STAB LA-63P); 1,10-Bis(2,2,6,6,-tetramethyl-4-piperidinyl)decandioate (CAS® registration number 52829-07-9, ADK STAB LA-77); Bis(1-Undecanoxy-2,2,6,6-tetramethyl-4-piperidinyl) carbonate (CAS® registration number 705257-84-7, ADK STAB LA-81); A mixture of 50%-60% piperazine pyrophosphate, 35%-45% proprietary phosphate compound, and 3%-6% zinc oxide (CAS® registration number 66034-17-1, ADK STAB FP-2500S); all "ADK" substances are products of Adeka Corporation. inorganic compounds Antimony trioxide (Brightsun HB ATO, China Antimony Chemicals Corporation). Zinc stannate (Flamtard S®, William Blythe Ltd.). Zinc borate (Firebrake ZB; Rio Tinto). Zinc sulfide (Sachtolith® HD-S, Venator Materials PLC). TiO2 (Kronos 2225, Kronos Incorporated). Calcium stearate Talc (microcrystalline; average grain size 2.2 μm, Mistron Vapor R, Imerys Performance Additives). Aluminum phosphinate, calcium phosphinate (both products of GreenChemicals SpA). Aluminum diethylphosphinate (Exolit® OP 1230, Clariant Ltd.) Basic zinc phosphate complex (Kemgard® 981); zinc molybdenum / magnesium hydroxide complex (Kemgard® MZM), both products of JMHuber Corporation. Halloysite clay (Dragonite® XR and Dragonite® HP, naturally exfoliated tubular mineral nanomaterials), both Applied This is a product of Minerals Inc. Silane-modified aluminum silicate (Burgess KE; Burgess Pigment Company). Glass fiber: Length 3.2 or 4.5 mm, average diameter 13 μm (ChopVantage® HP 3299, Nippon Electric Glass Co., Ltd.). Glass fiber: Length 4.5 mm, average diameter 13 μm (ChopVantage® HP 3293, PPG Industries or Nippon Electric Glass Co., Ltd.). Chopped Strand Fiberglass (HP3293), PPG Industries. Magnesium aluminum hydroxide (hydrotalcite, DHT-4A(registered trademark)-2; Kisuma Chemicals). Magnesium hydroxide (Magnifin® H-5 IV; Huber Martinswerk GmbH). A mixture of 25% to 50% calcium borate and 50% to 75% wollastonite (Halox® 1120F; ICL Specialty Products Inc.) Antioxidant Tetrakis(3-(4-hydroxy-3,5-di-tert-butylphenyl)propionyloxymethyl)methane (Ethanox® 310 antioxidant); tris-(2,4-di-tert-butylphenyl) phosphite (Ethaphos® 368 antioxidant), both products of the SI Group. Impact modifier Ethylene octene copolymer (Engage® XLT-8677; Dow Chemical). Compatibilizer Styrene-ethylene / butylene linear triblock copolymer (57% polystyrene, Kraton® A1535 H SEBS, Kraton Corporation) n). Maleic anhydride-modified polypropylene homopolymer (Polybond® 3200, SI Group). Sodium ionomer of ethylene / methacrylate copolymer (Surlyn® 8920, Dow Chemical Company). Halogenated polyethylene Polytetrafluoroethylene Chlorinated polyethylene (Weipren® CPE 6025 M, Lianda Corporation). pigment Pigment Brown 24 (a mixed oxide of chromium, antimony, and titanium; Sicotan® Yellow K 2001FG); Pigment Yellow 53 (a mixed compound of chromium, nickel, and titanium; Sicotan Yellow L 1010); Solvent Yellow 163 (1,8-bis(phenylthio)anthracene-9,10-dione; Oracet® Yellow 180); Carbon black (Microlen® Black0068, 53% C Black); all products of BASF Corporation. others Mixture of ammonium polyphosphate and aromatic esters of tris-(2-hydroxy-ethyl) isocyanurate (Exolit® AP750, Clariant Ltd.).

[0100] Analysis methods When analyzing the properties of the brominated flame retardants used in the practice of the present invention and for characterizing the flame-retardant polyolefin compositions of the present invention, known analysis methods can be used or adapted. Where applicable, the following methods were used to measure the brominated flame retardants used and / or the flame-retardant polyolefin compositions formed.

[0101] Total bromine content. Anionic chain transfer vinyl aromatic polymers and brominated anionic styrenic polymers dissolve to some extent in solvents such as dichloromethane, so the determination of the total bromine content of these brominated flame retardants is by conventional 1 1H nuclear magnetic resonance spectroscopy (NMR) techniques. The sample analyzed was a diluted sample and usually contained 0.2 g of the brominated flame retardant in about 1.5 g to about 2 g of deuterated dichloromethane. The NMR spectrometer was a Bruker Ascend 500 spectrometer equipped with a magnet with a 1H frequency of 500 MHz for proton observation. The chemical shift was determined using the protonated solvent residue in the resonance set at δ 5.32 ppm. The bromine content was determined by calculating the difference between the ratio of the integral of the proton signal in the aliphatic region to the proton signal in the aromatic region of the non-brominated polystyrene chain of known average molecular weight and the ratio of the integral of the proton signal in the aliphatic region to the proton signal in the aromatic region of the brominated flame retardant, and attributing that difference to the bromine atoms present in the aromatic ring of the brominated flame retardant. The values of the total bromine content reported in the examples were determined by this NMR method.

[0102] [[ID=第十九]] GPC light scattering number average molecular weight. The number average molecular weight (M n ​​The ) was determined by GPC light scattering using a Viscotek GPCmax VE2001 TDA module system (Malvern Panalytical Ltd.) equipped with an integrated UV detector (set to 254 nm) including a refractive index detector (RI) along with a dual-angle light scattering detector, a combined pump, an automated sample collector, and a temperature-controlled column compartment. Two 300 mm × 7.5 mm OligoPore® columns (Agilent Technologies, Inc.) with a pore size of 100 angstroms were used for the analysis. The solvent was t Trahydrofuran (THF, HPLC grade) was used, with a flow rate of 1 mL / min and the column and pump oven temperatures set to 40°C. Samples were prepared by dissolving 10 mg of the sample in 10 mL of THF. A fixed volume of this solution was filtered using a 0.45 μm syringe filter, and 200 μL of the filtered solution was injected into the column. For calibration, the first analytes containing 1,3-diphenylbutane and 1,3,5-triphenylhexane (adducts) were analyzed, and their peaks were assigned. Next, unbrominated samples of anionic polystyrene or anionic chain-transfer polystyrene were analyzed, and based on size exclusion as the separation mode, peaks were identified based on comparison with peaks from the adduct analysis, according to the elution order of 1,3-diphenylbutane (dimer), 1,3,5-triphenylhexane (trimer), 1,3,5,7-tetraphenyloctane (tetramer), 1,3,5,7,9-pentaphenyldecane (pentamer), etc. In the analysis of each brominated substance, theoretical molecular weight values ​​were assigned to 10 individual peaks based on the percentage of bromination. These theoretical values ​​and their corresponding retention times were used to create a calibration curve compared to the assigned peaks of the non-brominated substances. Overall distribution data was calculated and reported from this calibration curve for the brominated samples. Molecular weight distribution calculations were performed using Viscotek OmniSEC® software version 4.2.0.237 for gel permeation chromatography (GPC) data acquisition and processing systems.

[0103] Particle size is measured using a laser diffractometer (LS). TMThe experiment was conducted using -13 320 (Beckman Coulter, Inc.). The results of particle size reduction are summarized in Table 1 below.

[0104] UL-94 Vertical Combustion Test. The UL-94 vertical combustion test for flammability was performed on bars of two thicknesses: 3.2 mm and 1.6 mm. The time until the flame extinguished was measured, and for some samples, the time until the glow (afterglow) extinguished was also measured. Afterglow, or glow, is defined in the UL-94 vertical combustion test as "the persistence of incandescent combustion after both the removal of the ignition source and the extinguishing of all flames." In the UL-94 vertical combustion test, afterglow time (glow time) is defined as "the length of time the afterglow persists under specific conditions." The cutoff time for the glow to extinguish in order to pass the glow test is 30 seconds. In the following embodiments, the UL-94 vertical combustion test was performed on bars of two thicknesses: 3.2 mm and 1.6 mm. The composition was not optimized for the more stringent test with the 1.6 mm bar, but the results for the 1.6 mm bar may be improved by small changes in the amount of one or more flame retardants, glow inhibitors, and / or inorganic compounds.

[0105] Melt flow index test. The procedure and apparatus of ASTM test method D1238-00 were used to determine the melt flow index of the flame-retardant polyolefin composition of the present invention. The extrusion plastometer was operated at an applied pressure of 2.16 kg and a temperature of 230°C. The sample used in the test was the flame-retardant polyolefin composition of the present invention.

[0106] Polytetrafluoroethylene (PTFE) was added as a 5% by weight mixture in the polyolefin polymer.

[0107] Each sample was formed by separately supplying each component, excluding glass fibers, in powder form using a twin-screw extruder (ZSK30 (30mm), Werner & Pfleiderer Coperion GmbH), and then mixing and melting all the components together.

[0108] The results of each UL-94 vertical combustion test reported in the following examples are the average of five analyses. The results of each physical or mechanical characterization test reported in the following examples are the average of three analyses.

[0109] In the table below, the analysis containing "-A" is a comparative analysis of embodiments containing a growth inhibitor. This invention relates to an embodiment in which the flame retardant is a brominated anionic styrene polymer and no glow inhibitor is present. The analysis containing "-C" is a comparative analysis of both embodiments containing a glow inhibitor and embodiments in which the flame retardant is a brominated anionic styrene polymer and no glow inhibitor is present.

[0110] In all the tables below, the amounts of each component and the amount of bromine are reported as weight percent.

[0111] Example 1 Polypropylene homopolymer and a number average molecular weight of approximately 2087 (M n Several samples containing ) and brominated anionic chain transfer polystyrene (Br-ACTSP) having 74% by weight of bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests are listed in Table 1. Analysis A is for comparison. [Table 1]

[0112] Example 2 Polypropylene impact copolymer and number average molecular weight (M n Several samples containing brominated anionic polystyrene (Br-APS) with a 2112 ion content and 73.3% bromine by weight were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests are listed in Table 2. The amount of bromine in each sample was 19.0% by weight. [Table 2]

[0113] Example 3 Polypropylene impact copolymer and number average molecular weight (M n Several samples containing approximately 2112% of ) and 73.3% by weight of brominated anionic polystyrene were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests are listed in Table 3A. Additional properties of these samples are listed in Table 3B. [Table 3] [Table 4]

[0114] Example 4 Several samples containing polypropylene impact copolymer and brominated anionic polystyrene with a number-average molecular weight (Mn) of approximately 2250 and 73.3% by weight of bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests, along with some additional properties of these samples, are listed in Table 4. [Table 5]

[0115] Example 5 Polypropylene impact copolymer and number average molecular weight (M n Several samples containing brominated anionic polystyrene with approximately 2167 lbs and 73.3 wt% bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests, along with some additional properties of these samples, are listed in Table 5. [Table 6]

[0116] Example 6 Polypropylene impact copolymer and number average molecular weight (M nSeveral samples containing brominated anionic polystyrene with approximately 2167 lbs and 73.3 wt% bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests, along with some additional properties of these samples, are listed in Table 6. [Table 7]

[0117] Example 7 Polypropylene impact copolymer and number average molecular weight (M n Several samples containing brominated anionic polystyrene with approximately 2167 lbs and 73.3 wt% bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests, along with some additional properties of these samples, are listed in Table 7. [Table 8]

[0118] Example 8 Polypropylene impact copolymer and number average molecular weight (M n Several samples containing brominated polystyrene with approximately 2167 lbs and 73.3 wt% bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests, along with some additional characteristics of these samples, are listed in Table 8. [Table 9]

[0119] Example 9 Several samples containing polypropylene impact copolymer and brominated anionic polystyrene were prepared and subjected to the UL-94 vertical combustion test. Samples A and B had a number average molecular weight (M) of approximately 2183. n ) and Br-APS containing 73.7% by weight of bromine; the sample of analysis C was approximately 2708 M nIt also contained Br-APS with 72.9% by weight of bromine. The amounts of the components and the results of the flammability tests, along with some additional properties of these samples, are listed in Table 9. [Table 10]

[0120] Example 10 Polypropylene impact copolymer and number average molecular weight (M n Several samples containing brominated anionic polystyrene with approximately 2708 ions and 72.9% by weight bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests, along with some additional properties of these samples, are listed in Tables 10A and 10B. [Table 11] [Table 12-1] [Table 12-2]

[0121] Example 11 Several samples containing polypropylene impact copolymer and brominated anionic polystyrene were prepared and subjected to the UL-94 vertical combustion test. Most samples had a number average molecular weight (M) of approximately 2162. n ) and Br-APS containing 73.6% by weight of bromine; the analytical EA sample was approximately 2714 M n It also contained Br-APS with 72.8% by weight of bromine. The amounts of the components and the results of the flammability tests, along with some additional properties of these samples, are listed in Tables 11A and 11B. [Table 13] [Table 14]

[0122] Example 12 Polypropylene impact copolymer and number average molecular weight (M n Several samples containing brominated anionic polystyrene with approximately 2708 ions and 72.9% by weight bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests, along with some additional characteristics of these samples, are listed in Table 12. [Table 15-1] [Table 15-2]

[0123] Example 13 Polypropylene impact copolymer and number average molecular weight (M n Several samples containing brominated anionic polystyrene with approximately 2714 ions and 72.8% by weight bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests are listed in Table 13. [Table 16]

[0124] Example 14 Polypropylene impact copolymer and number average molecular weight (M n ) is approximately 2708 and bromine is 72.9 Several samples containing wt% brominated anionic polystyrene were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests, along with some additional properties of these samples, are listed in Table 14. [Table 17]

[0125] Example 15 Several samples containing polypropylene impact copolymer and brominated anionic polystyrene (Br-APS) were prepared and subjected to the UL-94 vertical combustion test. Most samples had a number average molecular weight (M) of approximately 2112. n) and Br-APS containing 73.3% by weight of bromine; the analytical AA sample is approximately 2560 M n It also contained Br-APS with 74.9% by weight of bromine. The amounts of the components and the results of the flammability test are listed in Table 15. [Table 18]

[0126] Example 16 Polypropylene impact copolymer and number average molecular weight (M n Several samples were prepared containing brominated anionic polystyrene with approximately 2714 lbs and 72.8 wt% bromine, and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests are listed in Table 16. In Analysis A, it was expected that pigments might increase the afterglow time, so several pigments were included in the composition to determine their effect on afterglow time; it was observed that the pigments did not appear to affect the afterglow time. [Table 19]

[0127] Example 17 Polypropylene impact copolymer and number average molecular weight (M n Several samples containing brominated anionic polystyrene with approximately 2708 ions and 72.9% by weight bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests are listed in Table 17. [Table 20]

[0128] Example 18 Several samples containing polypropylene impact copolymer and brominated anionic polystyrene were prepared and subjected to the UL-94 vertical combustion test. Most samples had a number average molecular weight of approximately 2560 (M n ) and Br-APS containing 74.9% by weight of bromine; the sample of analytical GA is approximately 2714 M nand containing Br-APS having 72.8% by weight of bromine. The amounts of the components and the results of the flammability test are listed in Table 18. [Table 21]

[0129] Example 19 Polypropylene impact copolymer and number average molecular weight (M n Several samples containing brominated anionic polystyrene with approximately 750 lbs and 73% by weight bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests are listed in Table 19, along with some additional properties of these samples. [Table 22]

[0130] Example 20 Polypropylene impact copolymer and number average molecular weight (M n Several samples containing brominated anionic polystyrene with approximately 750 lbs and 73% by weight bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests are listed in Table 20, along with some additional characteristics of these samples. Analyses A-C are comparisons of embodiments containing glow inhibitors. [Table 23]

[0131] Example 21 LLDPE, LDPE, HDPE, or polypropylene impact copolymer with number average molecular weight (M n Samples containing brominated anionic polystyrene with approximately 750 lbs and 73% by weight bromine were prepared and subjected to UL-94 vertical combustion tests. The amounts of the components and the results of the flammability tests, along with some additional characteristics of these samples, are listed in Table 21. Analyses A, C, and E are comparisons of embodiments containing glow inhibitors. [Table 24]

[0132] Further embodiments of the present invention include, but are not limited to, the following: A) A flame retardant additive composition, The glow inhibitor is a compound comprising at least one five-membered or six-membered ring portion containing at least one nitrogen atom, and at least one of the glow inhibitors; A compound comprising at least one brominated flame retardant, wherein the brominated flame retardant contains aromatically linked bromine, and a) Brominated anionic styrene polymer having a number average molecular weight of approximately 750 to approximately 7500 and / or a bromine content of approximately 60% to approximately 77% by weight. b) Brominated anionic chain-transfer vinyl aromatic polymer containing approximately 70% by weight or more of bromine, Or a mixture of any two or more of these, In this case, the flame retardant additive composition contains about 0.5% by weight or more of the glow inhibitor based on the total weight of the flame retardant additive composition.

[0133] B) The flame retardant additive composition according to A), wherein the portion of the five-membered or six-membered ring containing at least one nitrogen atom of the glow inhibitor is an unsaturated ring portion.

[0134] C) The flame retardant additive composition according to A), wherein the portion of the five-membered or six-membered ring containing at least one nitrogen atom of the glow inhibitor is selected from triazole, piperidine, piperazine, triazine, and morpholine.

[0135] D) The flame retardant additive composition according to A) to C), which contains about 1% by weight or more of the glow inhibitor based on the total weight of the flame retardant additive composition.

[0136] E) The flame retardant additive composition according to A), comprising at least one inorganic compound.

[0137] F) The flame retardant additive composition according to E), wherein the total amount of the inorganic compound is about 10% by weight or more based on the total weight of the flame retardant additive composition.

[0138] G) The flame retardant additive composition according to E), wherein the inorganic compound comprises talc, antimony trioxide, zinc borate, aluminum phosphinate, aluminum diethylphosphinate, calcium phosphinate, and / or hydrotalcite.

[0139] H) The flame retardant additive composition according to E), wherein the inorganic compound comprises talc and antimony trioxide, and optionally comprises at least one inorganic compound selected from zinc borate, aluminum phosphinate, aluminum diethylphosphinate, calcium phosphinate, and / or hydrotalcite.

[0140] I) The flame retardant additive composition according to any one of A) to F), wherein the glow inhibitor comprises melamine polyphosphate, and the composition comprises at least one inorganic compound, the inorganic compound being zinc borate and aluminum diethylphosphinate.

[0141] J) The flame retardant additive composition according to any one of A) to I), wherein the glow inhibitor comprises melamine polyphosphate.

[0142] K) The flame retardant additive composition according to any one of A) to J), wherein the brominated anionic styrene polymer is a brominated anionic polystyrene having a number average molecular weight of about 1000 to about 4000 and / or a bromine content of about 70% to about 77% by weight.

[0143] L) The brominated anionic styrene polymer is a brominated anionic polymer having a number average molecular weight of about 2000 to about 3500 and / or a bromine content of about 72% to about 76% by weight. A flame retardant additive composition, which is styrene, as described in any of A) to J).

[0144] M) A process for forming a flame retardant additive composition, wherein the process comprises: The flame retardant additive composition contains at least 0.5% by weight of a glow inhibitor based on the total weight of the flame retardant additive composition, wherein the glow inhibitor is a compound comprising at least one 5-membered or 6-membered ring portion containing at least one nitrogen atom; This includes combining with at least one brominated flame retardant, wherein the brominated flame retardant contains an aromatically linked bromine, and a) Brominated anionic styrene polymer having a number average molecular weight of approximately 750 to approximately 7500 and / or a bromine content of approximately 60% to approximately 77% by weight. b) Brominated anionic chain-transfer vinyl aromatic polymer containing approximately 70% by weight or more of bromine, or selected from any two or more mixtures of these, A process for forming the aforementioned flame retardant additive composition.

[0145] N) The process according to M), wherein the portion of the five-membered or six-membered ring containing at least one nitrogen atom of the glow inhibitor is an unsaturated ring portion.

[0146] O) The process according to M), wherein the five-membered or six-membered ring portion of the glow inhibitor containing at least one nitrogen atom is selected from triazole, piperidine, piperazine, triazine, and morpholine.

[0147] P) The process according to any one of M) to O), wherein the glow inhibitor is in an amount of about 1% by weight or more based on the total weight of the flame retardant additive composition.

[0148] Q) The process described in M), comprising combining at least one inorganic compound.

[0149] R) The process according to Q), wherein the amount of the inorganic compound is such that the flame retardant additive composition contains about 10% by weight or more of the inorganic compound, based on the total weight of the flame retardant additive composition.

[0150] S) The process according to Q) or R), wherein the inorganic compound comprises talc, antimony trioxide, zinc borate, aluminum phosphinate, aluminum diethylphosphinate, calcium phosphinate, and / or hydrotalcite.

[0151] T) The process according to Q) or R), wherein the inorganic compound comprises talc and antimony trioxide, and optionally comprises at least one inorganic compound selected from zinc borate, aluminum phosphinate, aluminum diethylphosphinate, calcium phosphinate, and / or hydrotalcite.

[0152] U) The process according to any one of M) to T), wherein the growth inhibitor comprises polyphosphate melamine.

[0153] V) The process according to Q) or R), wherein the glow inhibitor comprises melamine polyphosphate, and the process comprises combining at least one inorganic compound, wherein the inorganic compound is zinc borate and aluminum diethylphosphinate.

[0154] W) The brominated anionic styrene polymer is a brominated anionic polymer having a number average molecular weight of about 1000 to about 4000 and / or a bromine content of about 70% to about 77% by weight. The process described in any of M) to V) is styrene.

[0155] X) The process according to any one of M) to V), wherein the brominated anionic styrene polymer is a brominated anionic polystyrene having a number average molecular weight of about 2000 to about 3500 and / or a bromine content of about 72% to about 76% by weight.

[0156] Y) A flame-retardant polyolefin composition, i) at least one of the glow inhibitors, wherein the glow inhibitor is a compound comprising at least one five-membered or six-membered ring portion containing at least one nitrogen atom; ii) with at least one inorganic compound; iii) A flame retardant amount containing at least one brominated flame retardant; iv) Formed from at least one polyolefin, wherein the brominated flame retardant contains aromatically linked bromine, a) Brominated anionic styrene polymer having a number average molecular weight of approximately 750 to approximately 7500 and / or a bromine content of approximately 60% to approximately 77% by weight. b) Brominated anionic chain-transfer vinyl aromatic polymer containing approximately 70% by weight or more of bromine, Or a mixture of any two or more of these, The flame-retardant polyolefin composition contains about 0.25% by weight or more of the glow inhibitor based on the total weight of the flame-retardant polyolefin composition, and the flame-retardant polyolefin composition contains about 5% by weight or more of an inorganic compound based on the total weight of the flame-retardant polyolefin composition.

[0157] Z) The flame-retardant polyolefin composition according to Y), wherein the portion of the five-membered or six-membered ring containing at least one nitrogen atom of the glow inhibitor is an unsaturated ring portion.

[0158] AA) The flame-retardant polyolefin composition according to Y), wherein the five-membered or six-membered ring portion containing at least one nitrogen atom of the glow inhibitor is selected from triazole, piperidine, piperazine, triazine, and morpholine.

[0159] AB) A flame-retardant polyolefin composition according to any one of Y) to AA), which contains about 0.5% by weight or more of the glow inhibitor based on the total weight of the flame-retardant polyolefin composition.

[0160] AC) The flame-retardant polyolefin composition according to Y), wherein the inorganic compound is present in an amount of about 10% by weight or more based on the total weight of the flame-retardant polyolefin composition.

[0161] AD) A flame-retardant polyolefin composition according to any one of Y) to AC), wherein the inorganic compound comprises talc, antimony trioxide, zinc borate, aluminum phosphinate, aluminum diethylphosphinate, calcium phosphinate, and / or hydrotalcite.

[0162] AE) A flame-retardant polyolefin composition according to any one of Y) to AC), wherein the inorganic compound comprises talc and antimony trioxide, and optionally comprises at least one inorganic compound selected from zinc borate, aluminum phosphinate, aluminum diethylphosphinate, calcium phosphinate, and / or hydrotalcite.

[0163] AF) A flame-retardant polyolefin composition according to any one of Y) to AE), wherein the glow inhibitor comprises melamine polyphosphate.

[0164] AG) The flame-retardant polyolefin composition according to any one of Y) to AC), wherein the glow inhibitor comprises melamine polyphosphate, and the composition comprises at least one inorganic compound, the inorganic compound being zinc borate and aluminum diethylphosphinate.

[0165] AH) The flame-retardant polyolefin composition according to any one of Y) to AG), wherein the brominated anionic styrene polymer is a brominated anionic polystyrene having a number average molecular weight of about 1000 to about 4000 and / or a bromine content of about 70% to about 77% by weight.

[0166] AI) The flame-retardant polyolefin composition according to any one of Y) to AG), wherein the brominated anionic styrene polymer is a brominated anionic polystyrene having a number average molecular weight of about 2000 to about 3500 and / or a bromine content of about 72% to about 76% by weight.

[0167] AJ) A process for forming a flame-retardant polyolefin composition, wherein the process contains a glow inhibitor in an amount such that the flame-retardant polyolefin composition contains about 0.25% by weight or more of a glow inhibitor based on the total weight of the flame-retardant polyolefin composition, and the flame-retardant polyolefin composition contains an inorganic compound in an amount such that that the flame-retardant polyolefin composition contains about 5% by weight or more of an inorganic compound based on the total weight of the flame-retardant polyolefin composition. i) at least one of the glow inhibitors, wherein the glow inhibitor is a compound comprising at least one five-membered or six-membered ring portion containing at least one nitrogen atom; ii) with at least one inorganic compound; iii) At least one brominated flame retardant in terms of flame retardant amount, iV) comprising combining with at least one polyolefin, wherein the brominated flame retardant contains aromatically linked bromine, a) Brominated anionic styrene polymer having a number average molecular weight of approximately 750 to approximately 7500 and / or a bromine content of approximately 60% to approximately 77% by weight. b) Brominated anionic chain-transfer vinyl aromatic polymer containing approximately 70% by weight or more of bromine, or selected from any two or more mixtures of these, A process for forming the aforementioned flame-retardant polyolefin composition.

[0168] AK) The process according to AJ), wherein the portion of the five-membered or six-membered ring containing at least one nitrogen atom of the glow inhibitor is an unsaturated ring portion.

[0169] AL) The process according to AJ), wherein the five-membered or six-membered ring portion of the glow inhibitor containing at least one nitrogen atom is selected from triazole, piperidine, piperazine, triazine, and morpholine.

[0170] AM) The process according to any one of AJ) to AL), comprising about 0.5% by weight or more of the glow inhibitor based on the total weight of the flame-retardant polyolefin composition.

[0171] AN) The process according to AJ), wherein the inorganic compound is in an amount such that the flame retardant additive composition contains about 10% by weight or more of the inorganic compound, based on the total weight of the flame retardant additive composition.

[0172] AO) The process according to any one of AJ) to AN), wherein the inorganic compound comprises talc, antimony trioxide, zinc borate, aluminum phosphinate, aluminum diethylphosphinate, calcium phosphinate, and / or hydrotalcite.

[0173] AP) The inorganic compound comprises talc and antimony trioxide, and optionally zinc borate, aluminum phosphinate, aluminum diethylphosphinate, calcium phosphinate, The process according to any one of AJ) to AN), comprising at least one inorganic compound selected from and / or hydrotalcite.

[0174] AQ) The process according to any one of AJ) to AP), wherein the growth inhibitor comprises polyphosphate melamine.

[0175] AR) The process according to any one of AJ) to AM), wherein the glow inhibitor comprises melamine polyphosphate and the inorganic compound is zinc borate and aluminum diethylphosphinate.

[0176] AS) The process according to any one of AJ) to AR), wherein the brominated anionic styrene polymer is a brominated anionic polystyrene having a number average molecular weight of about 1000 to about 4000 and / or a bromine content of about 70% to about 77% by weight.

[0177] AT) The process according to any one of AJ) to AR), wherein the brominated anionic styrene polymer is a brominated anionic polystyrene having a number average molecular weight of about 2000 to about 3500 and / or a bromine content of about 72% to about 76% by weight.

[0178] AU) A flame-retardant polyolefin composition, the flame-retardant polyolefin composition comprising at least one polyolefin and a flame retardant amount of a brominated flame retardant, wherein the brominated flame retardant is a brominated anionic styrene polymer containing aromatically linked bromine and having a number average molecular weight of about 750 to about 7500 and / or a bromine content of about 60% to about 77% by weight.

[0179] AV) The flame retardant is approximately 5% by weight or more based on the total weight of the flame retardant polyolefin composition, according to AU).

[0180] AW) A flame-retardant polyolefin composition according to AU) or AV), comprising at least one inorganic compound.

[0181] AX) The flame-retardant polyolefin composition according to AW), wherein the inorganic compound comprises talc, antimony trioxide, zinc borate, aluminum phosphinate, aluminum diethylphosphinate, calcium phosphinate, and / or hydrotalcite.

[0182] AY) The flame-retardant polyolefin composition according to AW), wherein the inorganic compound is talc and antimony trioxide and optionally at least one inorganic compound selected from zinc borate, aluminum phosphinate, aluminum diethylphosphinate, calcium phosphinate, and / or hydrotalcite.

[0183] AZ) The flame-retardant polyolefin composition according to any one of AU) to AY), wherein the brominated anionic styrene polymer is a brominated anionic polystyrene having a number average molecular weight of about 1000 to about 4000 and / or a bromine content of about 70% to about 77% by weight.

[0184] BA) The flame-retardant polyolefin composition according to any one of AU) to AY), wherein the brominated anionic styrene polymer is a brominated anionic polystyrene having a number average molecular weight of about 2000 to about 3500 and / or a bromine content of about 72% to about 76% by weight.

[0185] BB) A masterbatch comprising a polyolefin and; a brominated flame retardant, wherein the brominated flame retardant contains aromatic-bonded bromine and a) a brominated anionic styrene polymer having a number average molecular weight of about 750 to about 7500 and / or a bromine content of about 60% to about 77% by weight, [[ID=十一]]b) a brominated anionic chain transfer vinyl aromatic polymer containing at least 70% by weight of bromine, or a masterbatch selected from mixtures of any two or more of these.

[0186] BC) The masterbatch according to BB), comprising at least one glow inhibitor, wherein the glow inhibitor is a compound containing at least one five-membered or six-membered ring moiety containing at least one nitrogen atom.

[0187] BD) The masterbatch according to BB), comprising at least one inorganic compound and at least one glow inhibitor, wherein the glow inhibitor is a compound containing at least one five-membered or six-membered ring moiety containing at least one nitrogen atom.

[0188] BE) The masterbatch according to BC) or BD), wherein the five-membered or six-membered ring moiety containing at least one nitrogen atom of the glow inhibitor is an unsaturated ring moiety.

[0189] BF) The masterbatch according to BC) or BD), wherein the five-membered or six-membered ring moiety containing at least one nitrogen atom of the glow inhibitor is selected from triazole, piperidine, piperazine, triazine, and morpholine.

[0190] BG) The masterbatch according to BB), comprising at least one inorganic compound.

[0191] BH) The masterbatch according to BD) or BG), wherein the inorganic compound contains antimony trioxide.

[0192] BI) A masterbatch according to any one of BB) to BF), wherein the growth inhibitor comprises polyphosphate melamine.

[0193] BJ) The masterbatch according to BB), wherein the glow inhibitor comprises melamine polyphosphate, and the masterbatch comprises at least one inorganic compound, the inorganic compound being antimony trioxide.

[0194] BK) The masterbatch according to any one of BB) to BJ), wherein the brominated anionic styrene polymer is a brominated anionic polystyrene having a number average molecular weight of about 1000 to about 4000 and / or a bromine content of about 70% to about 77% by weight.

[0195] BL) The masterbatch according to any one of BB) to BJ), wherein the brominated anionic styrene polymer is a brominated anionic polystyrene having a number average molecular weight of about 2000 to about 3500 and / or a bromine content of about 72% to about 76% by weight.

[0196] Any component referred to by a chemical name or chemical formula in this specification or in the claims, whether referred to singly or plurally, is identified as existing before contact with another substance (e.g., another component, solvent, etc.) referred to by a chemical name or chemical type. Since such changes, transformations, and / or reactions are natural consequences of bringing together particular components under the conditions required in accordance with this disclosure, it is irrelevant what chemical changes, transformations, and / or reactions occur in the resulting mixture or solution. Therefore, this component is identified as one that is brought together in connection with the performance of a desired operation or the formation of a desired composition. Furthermore, although the following claims may refer to substances, components, and / or ingredients in the present tense (e.g., "includes," "is"), the references are in accordance with this disclosure. This applies to the substances, components, or ingredients as they were at the time immediately preceding their initial contact, blending, or mixing with the other substances, components, and / or ingredients mentioned above. The fact that the substances, components, or ingredients may have lost their original identity through chemical reactions or transformations during the course of the contact, blending, or mixing operations, when carried out in accordance with the present disclosure and the ordinary art of chemists, is therefore not a substantial issue.

[0197] The present invention may include, consist of, or essentially consist of the materials and / or procedures listed herein.

[0198] When used herein, the term “about” modifying the amount of an ingredient in a composition of the present invention or used in a method of the present invention refers to a change in a numerical amount that may occur, for example, through typical measurements and liquid handling procedures used to prepare concentrates or use solutions in the real world; through careless errors in these procedures; through differences in the production, source, or purity of the ingredient used to prepare the composition or perform the method; or otherwise. The term “about” also encompasses different amounts resulting from different equilibrium conditions of compositions arising from a particular initial mixture. Whether modified by the term “about” or not, claims encompass amounts equivalent to that amount.

[0199] As used herein, the articles "a" or "an," unless otherwise explicitly stated, are not intended to limit the detailed description or claims to a single element to which the article refers, and should not be construed as such. Rather, as used herein, the articles "a" or "an," unless otherwise explicitly stated in the text, are intended to encompass one or more such elements.

[0200] The present invention is subject to considerable variation in its implementation. Therefore, the foregoing description is not intended to limit the invention to the specific examples presented above, nor should it be construed as such.

Claims

1. A flame retardant additive composition, The glow inhibitor is a compound comprising at least one five-membered or six-membered ring portion containing at least one nitrogen atom, and comprises at least one glow inhibitor containing polyphosphate melamine; A brominated anionic chain-transfer vinyl aromatic polymer containing aromatically linked bromine and containing 70% by weight or more of bromine, or any two or more mixtures thereof; The flame retardant additive composition contains 0.5% by weight or more of the glow inhibitor based on the total weight of the flame retardant additive composition.

2. The flame retardant additive composition according to claim 1, comprising 1% by weight or more of the glow inhibitor based on the total weight of the flame retardant additive composition.

3. It contains at least one inorganic compound, and optionally, i) The total amount of the inorganic compound is 10% by weight or more based on the total weight of the flame retardant additive composition, or ii) The inorganic compound comprises talc and antimony trioxide, and optionally comprises at least one inorganic compound selected from zinc borate and / or hydrotalcite, The flame retardant additive composition according to claim 1.

4. A process for forming a flame retardant additive composition, wherein the process is carried out in such an amount that the flame retardant additive composition contains 0.5% by weight or more of a glow inhibitor based on the total weight of the flame retardant additive composition. The glow inhibitor is a compound comprising at least one five-membered or six-membered ring portion containing at least one nitrogen atom, and comprises at least one glow inhibitor containing polyphosphate melamine; The brominated flame retardant is a brominated anionic chain-transfer vinyl aromatic polymer containing aromatically linked bromine and containing 70% by weight or more of bromine, and the brominated flame retardant is combined with at least one other brominated flame retardant. A process for forming the aforementioned flame retardant additive composition.

5. The process according to claim 4, wherein the glow inhibitor is in an amount of 1% by weight or more based on the total weight of the flame retardant additive composition.

6. The process according to claim 4, comprising combining at least one inorganic compound, optionally such that the inorganic compound is present in such an amount as the total weight of the flame retardant additive composition that the flame retardant additive composition contains 10% by weight or more of the inorganic compound.

7. The process according to claim 6, wherein the inorganic compound comprises talc and antimony trioxide, and optionally comprises at least one inorganic compound selected from zinc borate and / or hydrotalcite.

8. A flame-retardant polyolefin composition, i) The glow inhibitor is a compound comprising at least one five-membered or six-membered ring portion containing at least one nitrogen atom, and comprises at least one glow inhibitor containing polyphosphate melamine; ii) at least one inorganic compound comprising talc, antimony trioxide, zinc borate, and / or hydrotalcite; iii) A flame retardant amount containing at least one brominated flame retardant; iv) Formed from at least one polyolefin, The brominated flame retardant contains aromatically linked bromine, and a) Brominated anionic styrene polymer having a number average molecular weight of 750 to 4000 and a bromine content of 60% to 77% by weight, b) A brominated anionic chain-transfer vinyl aromatic polymer containing 70% by weight or more of bromine, Or a mixture of any two or more of these, The flame-retardant polyolefin composition contains 0.25% by weight or more of the glow inhibitor based on the total weight of the flame-retardant polyolefin composition, and the flame-retardant polyolefin composition contains 5% by weight or more of an inorganic compound based on the total weight of the flame-retardant polyolefin composition.

9. The flame-retardant polyolefin composition according to claim 8, comprising 0.5% by weight or more of the glow inhibitor based on the total weight of the flame-retardant polyolefin composition.

10. The flame-retardant polyolefin composition according to claim 8, wherein the inorganic compound is present in an amount of 8% by weight or more based on the total weight of the flame-retardant polyolefin composition.

11. The flame-retardant polyolefin composition according to any one of claims 8 to 10, wherein the inorganic compound comprises talc and antimony trioxide, and optionally comprises at least one inorganic compound selected from zinc borate and / or hydrotalcite.

12. The aforementioned brominated anionic styrene polymer, i) Brominated anionic polystyrene having a number average molecular weight of 1000 to 4000 and a bromine content of 70% to 77% by weight, or ii) Brominated anionic polystyrene having a number average molecular weight of 2000 to 3500 and a bromine content of 72% to 76% by weight. A flame-retardant polyolefin composition according to any one of claims 8 to 11.

13. A process for forming a flame-retardant polyolefin composition, wherein the flame-retardant polyolefin composition contains 0.25% by weight or more of a glow inhibitor based on the total weight of the flame-retardant polyolefin composition, and the flame-retardant polyolefin composition contains 5% by weight or more of an inorganic compound based on the total weight of the flame-retardant polyolefin composition, wherein the process is performed in such an amount. i) The glow inhibitor is a compound comprising at least one five-membered or six-membered ring portion containing at least one nitrogen atom, and comprises at least one glow inhibitor containing polyphosphate melamine; ii) at least one inorganic compound comprising talc, antimony trioxide, zinc borate, and / or hydrotalcite; iii) At least one brominated flame retardant in the amount of flame retardant, i) comprising combining with at least one polyolefin, The brominated flame retardant contains aromatically linked bromine, and a) Brominated anionic styrene polymer having a number average molecular weight of 750 to 4000 and a bromine content of 60% to 77% by weight, b) Brominated anionic chain-transfer vinyl aromatic polymer containing 70% by weight or more of bromine, or selected from any two or more mixtures of these, A process for forming the aforementioned flame-retardant polyolefin composition.

14. The process according to claim 13, wherein the glow inhibitor is present in an amount of 0.5% by weight or more based on the total weight of the flame-retardant polyolefin composition.

15. The process according to claim 13, wherein the amount of the inorganic compound is such that the flame-retardant polyolefin composition contains 8% by weight or more of the inorganic compound, based on the total weight of the flame-retardant polyolefin composition.

16. The process according to claims 13 to 15, wherein the inorganic compound comprises talc and antimony trioxide, and optionally comprises at least one inorganic compound selected from zinc borate and / or hydrotalcite.

17. The aforementioned brominated anionic styrene polymer, i) Brominated anionic polystyrene having a number average molecular weight of 1000 to 4000 and a bromine content of 70% to 77% by weight, or ii) Brominated anionic polystyrene having a number average molecular weight of 2000 to 3500 and a bromine content of 72% to 76% by weight. The process according to any one of claims 13 to 16.

18. A flame-retardant polyolefin composition comprising at least one polyolefin and a flame retardant amount of a brominated flame retardant, wherein the brominated flame retardant is a brominated anionic styrene polymer containing aromatically linked bromine, having a number average molecular weight of 750 to 4000 and a bromine content of 72% to 77% by weight, and the amount of the flame retardant is 23% by weight or more based on the total weight of the flame-retardant polyolefin composition.

19. It contains at least one inorganic compound, and optionally, i) The inorganic compound comprises talc, antimony trioxide, zinc borate, and / or hydrotalcite, ii) The inorganic compound is at least one inorganic compound selected from talc and antimony trioxide, and zinc borate and / or hydrotalcite. The flame-retardant polyolefin composition according to claim 18.

20. The aforementioned brominated anionic styrene polymer, i) Brominated anionic polystyrene having a number average molecular weight of 1000 to 4000, or ii) Brominated anionic polystyrene having a number average molecular weight of 2000 to 3500. A flame-retardant polyolefin composition according to any one of claims 18 to 19.

21. It is a masterbatch, Polyolefins and; A brominated flame retardant is included, wherein the brominated flame retardant contains aromatically linked bromine, and a) Brominated anionic styrene polymer having a number average molecular weight of 750 to 4000 and a bromine content of 60% to 77% by weight, b) Brominated anionic chain-transfer vinyl aromatic polymer containing 70% by weight or more of bromine, Or the masterbatch selected from any two or more mixtures thereof.

22. i) The masterbatch according to claim 21, comprising at least one glow inhibitor, wherein the glow inhibitor is a compound comprising at least one five-membered or six-membered ring portion containing at least one nitrogen atom, and comprising melamine polyphosphate.

23. The masterbatch according to claim 21, comprising at least one inorganic compound, wherein the inorganic compound optionally comprises antimony trioxide.

24. The aforementioned brominated anionic styrene polymer, i) Brominated anionic polystyrene having a number average molecular weight of 1000 to 4000 and a bromine content of 70% to 77% by weight, or ii) Brominated anionic polystyrene having a number average molecular weight of 2000 to 3500 and a bromine content of 72% to 76% by weight. A masterbatch according to any one of claims 21 to 23.

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