WO1999019395A1 - Compositions a base de chlorure de polyvinyle pour cables de vides techniques - Google Patents

Compositions a base de chlorure de polyvinyle pour cables de vides techniques Download PDF

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Publication number
WO1999019395A1
WO1999019395A1 PCT/US1998/021898 US9821898W WO9919395A1 WO 1999019395 A1 WO1999019395 A1 WO 1999019395A1 US 9821898 W US9821898 W US 9821898W WO 9919395 A1 WO9919395 A1 WO 9919395A1
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Prior art keywords
composition
flame retardant
vinyl chloride
phr
weight
Prior art date
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PCT/US1998/021898
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English (en)
Inventor
Arvind M. Rao
Vijay Kotak
Douglas G. Placek
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Great Lakes Chemical Corporation
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Filing date
Publication date
Application filed by Great Lakes Chemical Corporation filed Critical Great Lakes Chemical Corporation
Priority to AU10948/99A priority Critical patent/AU1094899A/en
Priority to IL13548698A priority patent/IL135486A0/xx
Priority to KR1020007004055A priority patent/KR20010024512A/ko
Priority to EP98953618A priority patent/EP1023380A1/fr
Publication of WO1999019395A1 publication Critical patent/WO1999019395A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0016—Plasticisers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0066—Flame-proofing or flame-retarding additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/01—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
    • C08K5/5317—Phosphonic compounds, e.g. R—P(:O)(OR')2
    • C08K5/5333—Esters of phosphonic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/55—Boron-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant

Definitions

  • This invention relates to compositions having flame retardant properties with reduced smoke evolution upon burning, as well as improved stability and processing characteristics.
  • this invention relates to flame retardant poly(vinyl chloride) compositions, which find particular application in the primary insulation and sheathing of plenum cables.
  • PNC polyvinyl chloride
  • CPVC chlorinated polyvinyl chloride
  • the compositions also comprise a thermal stabilizer.
  • Plenum cables are electrical cables installed in confined spaces, such as the air handling plenums in buildings, to provide electrical connections (both voice and data) between different parts of the building.
  • Plenum cables typically consist of a number of conductors protected by a primary insulation layer, which provides electrical/signal insulation between adjacent conductors and physical protection where optical fibers are used.
  • the primary insulation may be PVC, a fluorinated polymer such as FEP (e.g. , Teflon® FEP, DuPont), PNDF (e.g., Kynar® PNDF, Pennwalt) and E-CTFE (e.g., Halar®, Allied Chemical Co.) or a polyolefm such as polypropylene or peroxide cured polyethylene, which may additionally contain flame retardants.
  • FEP e.g. , Teflon® FEP, DuPont
  • PNDF e.g., Kynar® PNDF, Pennwalt
  • E-CTFE e.g., Halar®, Allied Chemical Co.
  • a polyolefm such as polypropylene or peroxide cured polyethylene, which may additionally contain flame retardants.
  • unmodified PVC is thermally unstable, decomposing at about 150°C
  • unmodified PVC has relatively good flame retardant properties.
  • the plasticizers required to overcome its rigidity and permit it to be processed as a flexible material increase its flammability, especially if used at higher levels.
  • PNC burns it produces a large amount of smoke, which not only contains toxic materials but also restricts visibility.
  • the specifications for plenum cables are particularly stringent with regard to flame and smoke resistance.
  • the most commonly used standard for measuring the acceptability of cable formulations for use in plenums is the UL 910
  • Vinyl halide polymers can be formulated into compositions that pass the UL910 test.
  • the formulations are typically complex and contain most or all of the following types of additives: flame retardant plasticizers, non-flame retardant plasticizers, additional flame retardants, smoke suppressants, stabilizers, antioxidants, lubricants, pigments, fillers and other additives.
  • Flame retarded wire insulation and cable jacket compositions comprising various combinations of additives have been disclosed in, for example, Sememza, Jr., U.S. Pat. No. 4,670,494; Kroushl, III, U.S. Pat. No. 5,227,417; Coaker, U.S. Pat. No. 5,036,121; and Popp, U.S. Pat. No. 4,246,158.
  • Flame retardant additives such as antimony trioxide, antimony pentoxide, sodium antimonate, alumina trihydrate, zinc borate, zinc hydroxystannate and zinc stannate have used.
  • Smoke suppressants include compounds such as molybdenum trioxide, hexa monium molybdate, magnesium oxide, zinc oxide, zinc molybdate and ferrocene.
  • Plasticizers include compounds such as tricresyl phosphate, trixylenyl phosphate, iso-decyl diphenyl phosphate, and chlorinated parrafins.
  • Fillers such as calcium carbonates and electrical grade clays (which may be included to achieve particular physical and electrical properties) as well as magnesium hydroxide, magnesium carbonate, huntite and hydromagnesite have also been described.
  • compositions that pass the UL910 test contain large amounts of flame resistant plasticizers (brominated phthalate esters) and smoke suppressants (ammonium octamolybdate). These high levels of additives render the compositions thermally unstable during processing and make them relatively expensive. Wire manufacturers must reduce their extrusion temperatures to prevent degradation, which can reduce production throughput. Consequently, a need exists for flame and smoke resistant in compositions that pass the UL910 test requirements and are relatively easy to process, without being prohibitively expensive.
  • flame resistant plasticizers brominated phthalate esters
  • smoke suppressants ammonium octamolybdate
  • the invention is a flame retardant, low smoke composition
  • a flame retardant, low smoke composition comprising:
  • compositions which have superior flame and smoke resistance properties, are based upon vinyl halide resins such as poly(vinyl chloride) (PNC), chlorinated poly(vinyl chloride) (CPNC), their copolymers, and blends thereof.
  • PNC poly(vinyl chloride)
  • CPNC chlorinated poly(vinyl chloride)
  • the compositions can be produced by the incorporation of the flame retardant into the vinyl halide resin.
  • the flame retardants are not fully compatible with PNC and/or CPNC resins and may exude from the composition when exposed to elevated temperatures, inclusion of appropriate quantity of a compatibilizing agent provides a composition from which the flame retardant does not exude.
  • compositions comprise the vinyl halide resin (PNC and/or CPVC); from about 5 to 15 phr (parts per hundred parts of vinyl halide resin) polyhaloalkylphosphate and/or polyhaloalkylthiophosphate phosphate flame retardant, and from about 1 to 8 phr of a compatibilising agent.
  • these compositions further comprise from 2 to 10 phr of a boric oxide or boron containing salt.
  • this invention is a composition
  • a composition comprising a poly (vinyl chloride) resin, a chlorinated poly (vinyl chloride) resin, or a mixture thereof; a polyhaloalkylphosphate and/or polyhaloalkylthiophosphate flame retardant having the formula I; and a compatibilising agent.
  • the composition comprises boric oxide and/or more or more boron containing salts.
  • the vinyl halide resins include vinyl halide homopolymers (i.e. PVC), graft or random copolymers of PVC with other comonomers and blends of homopolymers and copolymers. These include poly(vinyl chloride) as well as chlorinated polyvinyl chloride) containing between 58 and 73% chlorine by weight.
  • the functional segments used in the copolymerization are those that influence the processability and physical properties of the resin.
  • the flame retardants include the indicated polyhaloalkylphosphates and polyhaloalkylthiophosphates.
  • Polyhaloalkylphosphates are preferred.
  • the preferred polyhaloalkylphosphates are tris-(trichloroneopentyl) phosphate, tris-(dichloro- bromoneopentyl)phosphate, tris-(dibromochloroneopentyl) phosphate and tris-(tri- bromoneopentyl) phosphate.
  • the most preferred halogenated flame retardant is tris- (tribromoneopentyl) phosphate.
  • the polyhaloalkylphosphate and/or polyhaloalkylthiophosphate flame retardant is incorporated into the composition in an amount sufficient to impart the desired degree of flame retardancy to the composition. This amount will vary with the degree of flame retardancy required for the intended application, the amounts of other flame retardant agents present (especially flame retardant plasticizers). It will also be dependent on application related variables, such as the construction of the cable, the number of conductors, etc.
  • the amount of flame retardant required will be that which, in addition to the other additives present in the composition, will increase the halogen content of the composition by at least about 2% by weight from that of vinyl halide resin used in the composition.
  • poly(vinyl chloride) which is about 56.7% by weight halogen, would require sufficient flame retardant and, if present, other halogenated additives, to raise the overall halogen content of the flame retardant containing composition to at least about 58.7% by weight halogen.
  • the maximum amount of flame retardant added will be dictated by economic and practical considerations, but will generally be no greater than that which will provide about an additional 7% by weight (of the total weight of the composition) of halogen.
  • the preferred range is an additional between about 2.7% by weight and about 4.0%) by weight additional halogen, i.e., the composition contains sufficient flame retardant and other halogenated additives to provide a composition whose halogen content is from about 2.7% by weight to about 4.0 % by weight greater than that of the poly (vinyl chloride) resin, chlorinated poly (vinyl chloride) resin, or mixture thereof used to form the composition.
  • the compositions also comprise a compatibilising agent, which acts as an exudation inhibitor.
  • the compatibilising agent which may also be called an exudation inhibitor, is an additive that reduces the tendency of the polyhaloalkylphosphate and/or polyhaloalkylthiophosphate flame retardant to exude from the resin.
  • Useful agents are those which enhance the compatibility of the components of the composition.
  • the compatibilising agent, or exudation inhibitor delays chalking of the composition for at least two days, preferably at least three days, during accelerated aging, i.e., heating a sample of the composition in an air circulated oven at 100°C.
  • the compatibilising agent prevents the exudation of any significant amount of the flame retardant both during processing and during the lifetime of the composition.
  • compatibilising agents A wide variety of chemical compounds are potentially useful as compatibilising agents. Typical copolymers of ethylene and vinyl acetate, terpolymers of ethylene, vinyl acetate and carbon monoxide, chlorinated polyethylenes, vinyl chloride/ethylene copolymers and thermoplastic polyurethanes. Because brominated phosphates tend to exude from vinyl halide polymers, the compatibilising agent is not a brominated phosphate ester. Although useful as plasticizers, phosphate esters, such as triaryl phosphates and the aryl-alkyl phosphates, do not function as compatibilising agents in these compositions.
  • Preferred compatibilising agents are the flexibilizing agents currently used as part of PVC based compositions.
  • the term "flexibilizing agent” describes an additive that improves the low temperature flexibility and elongation of the compounded polymer.
  • Useful compounds include copolymers of ethylene and vinyl acetate (such as those sold by US Industrial Chemicals under the designation Ultrathene or by DuPont under the trademark Elvax®), terpolymers of ethylene, vinyl acetate or n-butyl acrylate, and carbon monoxide (such terpolymers are sold by DuPont under the trademark Elvaloy®), chlorinated polyethylene (such as those sold by DuPont-Dow under the designation Tyrin), vinyl chloride/ethylene copolymers and thermoplastic polyurethanes (such as those sold by B.F. Goodrich under the designation Estane) or mixtures thereof.
  • compositions comprise sufficient compatibilising agent to reduce the exudation of the phosphate flame retardant to the desired level or to prevent exudation altogether.
  • the ratio of the weight of the compatibilising agent to the weight of the halogenated flame retardant will be in the range 0.1:1 to 2.0:1.
  • compositions preferably further comprise a boron oxide or boron containing salt.
  • the preferred boron salts/oxides are zinc borate, calcium metaborate, barium metaborate, calcium pyroborate, potassium tetraborate, boric oxide, boric acid and ammonium pentaborate.
  • the term zinc borate includes the various hydrated and anhydrous forms thereof such as 4ZnO"6B 2 O 3 '7H 2 O, 2ZnO-2B 2 O 3 3H 2 O, 4ZnO B 2 O 3 H 2 O and 2ZnO 3B 2 O 3 .
  • These boron salts/oxides may be used individually or as blends.
  • the most preferred boron salt is zinc borate.
  • the amount of the boron salt/oxide which is incorporated into the polymer will generally be in proportion to the amount of the polyhaloalkylphosphate and/or polyhaloalkylthiophosphate flame retardant present.
  • the ratio of the weight of the boron compound to the weight of the flame retardant is preferably in the range of 0.1:1 to 1.0:1.
  • the compositions preferably also comprise an anti-oxidant or stabilizer.
  • Such compounds are known in the art of plenum cable formulation. In these compositions they add a degree of protection to the flame retardant, which reduces its tendency to degrade during polymer manufacture or processing.
  • compositions may also contain polymer stabilizers, flame retardant synergists, smoke suppressants, plasticizers, functional fillers and process aids, which are well known in the art.
  • Polymer stabilizers include those based on lead as well as mixed metal soaps.
  • Flame retardant synergists are those additives which are known to enhance the effectiveness of halogen containing flame retardant additives such as antimony pentoxide, antimony trioxide and sodium antimonate.
  • Smoke suppressants are additives that, upon contact with heat or flame, alter the polymer degradation pathway to produce a char instead of smoke.
  • Examples are ammonium octamolybdate, molybdenum oxide, hexaammonium molybdate, zinc molybdate, zinc stannate, zinc hydroxystannate, copper oxalate, ferrocene, magnesium oxide and zinc oxide.
  • Conventional plenum cable formulations typically contain 10 to 20% by weight smoke suppressant. However, this high level of smoke suppressant reduces the stability of the composition, reduces the cable production rate, and adversely affects the physical properties of the cable, especially its resistivity, low temperature flexibility and color.
  • the compositions may be formulated using much less or even no smoke suppressant. Although they may be acceptable in some low smoke applications, compositions that do not contain a smoke suppressant may not meet more stringent test requirements, such as the UL910 test.
  • the composition will comprise from about 8 phr to about 15 phr of smoke suppressant.
  • smoke suppressant is ammonium octamolybdate.
  • compositions preferably also comprise a plasticizer.
  • Plasticizers include, for example, phthalate esters, polyester plasticizers, citrate esters, trimellitate esters, pentaerythritol esters, trialkyl phosphates, triaryl phosphates, aryl- alkyl phosphates, chlorinated paraffins and brominated aromatic phthalate esters. Plasticizers may be used individually or in blends so that the resulting composition passes the physical property and heat aging provisions required by all cables (UL 444).
  • compositions proposed for use in plenum cable generally contain plasticizers of these types.
  • Alkyl-aryl phosphate plasticizers include, for example, the mixed phosphoric acid ester of phenols and C 12 to C 16 linear (or branched) alcohols such that the resulting phosphate ester contains a blend of the following components: (i) triphenyl phosphate (0-5%), (ii) dialkylphenyl phosphate (5-35%), (iii) alkyldiphenyl phosphate (65-95%) and (iv) trialkyl phosphate (less than 2%).
  • Chlorinated paraffins contain 50 and 75% by weight chlorine.
  • Brominated aromatic phthalate esters include bis-(di-2-ethylhexyl) tetrabromophthalate.
  • Conventional compositions typically contain from about 1 to about 40 phr of plasticizer and low smoke compositions typically contain about 15 to about 40 phr of flame retardant plasticizers.
  • compositions may not require a flame retardant plasticizer, but rather may use less expensive non-flame retardant plasticizers. However, if the cable is required to pass a more stringent flame retardant test such as the UL 910 test, the composition will preferably comprise a flame retardant plasticizer, preferably in an amount of from about 8 to about 15 phr. Although larger amounts of flame retardant plasticizers may be added, the preferred compositions may incorporate one or more non-flame retardant plasticizers to achieve the desired mechanical or aging properties at a lower cost.
  • compositions may also comprise a filler, an additive that dilutes the resin, without adversely effecting the mechanical properties of the composition.
  • the filler may also impart additional flame or smoke resistance and electrical resistivity to the composition.
  • Typical fillers are alumina trihydrate, magnesium hydroxide, magnesium carbonate, huntite, hydromagnesite and calcium carbonate.
  • compositions may be compounded using conventional techniques well known in the art.
  • the ingredients may be added separately during the compounding process or some may be formulated into a premix , which is added to the compounding process.
  • the resin or resins are premixed with the flame retardant and the compatibilising agent to form a masterbatch, which is introduced into the compounding process.
  • the compositions can be used in the manufacture of plenum cable, an application that requires enhanced flame and smoke resistance They meet flame retardant standards using smaller quantities of flame retardant, thereby reducing the cost. They may also be formulated so as to be easier to use in wire and cable manufacturing processes.
  • the advantageous properties of this invention can be observed by reference to the following examples which illustrate, but do not limit, the invention.
  • Peak heat release rate PHRR in kW/m
  • cumulative heat released TRR in MJ/m
  • Peak optical density OD P
  • maximum rate of specific extinction area SEA in m /kg
  • cumulative specific extinction area TSEA in m -min/kg
  • Dvnamic Thermal Stability The dynamic thermal stability of the compositions described in this invention was obtained during high shear compounding in a Brabender Plasticorder at 50 rpm and 195°C. A change in visual appearance or deviation in the torque curve signaled the compound's degradation. The time taken to reach one of these two events is noted as the dynamic stability time.
  • a representative flame retardant was pigmented with carbon black.
  • the samples (20 mm x 20 mm x 0.89 mm) were placed on a flat metal sheet in an air circulated oven at a temperature of 100°C. The samples were observed daily for white exudate or chalking. The number of days required to observe any whitening of the sample was recorded.
  • compositions were prepared by the following : (i) ingredients were dry blended, in a high speed mixer, at room temperature, (ii) the dry-blend was compounded at 200°C for 4 min in a Brabender mixer and (iii) the resultant fused compound was pressed into the dimensions required for cone calorimeter testing.
  • Examples 1, 2 and 4 are comparative examples.
  • Example 1 is a commercially available, minimally smoke inhibited PVC compound.
  • Examples 2 and 4 are compositions further enhanced by current technologies available in the art.
  • Examples 4 and 5 detail plenum compositions with other key smoke suppressants added.
  • Example 5 is an example of the invention.
  • Example 3, which does not include a compatibilising agent, demonstrates that the addition of tris (tribromoneo- pentyl) phosphate effectively inhibits flame and smoke. However, the composition is not useful in practice because the flame retardant exudes from the composition.
  • Examples 7 and 9 which comprise a smaller amount of tris-(tribromoneo- pentyl) phosphate than Examples 3 and 5, are compositions of the invention.
  • the flame retardant properties are not greatly reduced.
  • Examples 6 and 8 are comparative examples using reduced quantities of the brominated aromatic phthalate. The flame retardant properties are significantly reduced.
  • Pentaerythritol ester (Hercoflex 707A) 25 25 30 30
  • Alkyl-aryl phosphate ester (Santicizer 2148) 10 10 - -
  • Examples 10 to 13 are compositions of this invention.
  • Example 10 uses a non-flame retardant plasticizer in place of the flame retardant plasticizer.
  • Examples 11 to 13 illustrate the use of fillers. Table 3.
  • Examples 10-13 are compositions of this invention.
  • Example 10 uses a non-flame retardant plasticizer in place of the flame retardant plasticizer.
  • Examples 11 to 13 illustrate the use of fillers. Table 3.
  • Examples 10-13 are compositions of this invention.
  • Example 10 uses a non-flame retardant plasticizer in place of the flame retardant plasticizer.
  • Examples 11 to 13 illustrate the use of fillers. Table 3.
  • Pentaerythritol ester (Hercoflex 707 A) - 30 30 30
  • Examples 14 and 15 are comparative examples and have relatively poor dynamic thermal stability.
  • Example 16 is a composition of this invention, which exhibits relatively good dynamic thermal stability.
  • Pentaerythritol ester (Hercoflex 707A) - 15
  • Pentaerythritol ester (Hercoflex 707A) 30 30
  • Example 7 The composition of Example 7 was mixed in a high speed Henschel mixer and extruded into pellets and coated onto a 24 gauge copper conductor at average wall thickness of 0.20 mm. The insulated wire was cut and twisted into 4 pairs. The twisted conductors were covered with the composition in a 0.63 mm thick semi- pressure filled jacket. The resultant cable was evaluated in the UL 910 test protocol.

Abstract

Cette invention se rapporte à des compositions ignifugeantes, qui comprennent une résine de poly(chlorure de vinyle), une résine de poly(chlorure de vinyle) chlorée, ou un mélange de celles-ci; un agent ignifugeant à base de polyhaloalkylphosphate et/ou de polyhaloalkylthiophosphate, représenté par la formule (I), où M représente soufre ou oxygène et X?1, X2 et X3¿ représentent chacun séparément un halogène choisi dans le groupe du chlore et du brome; ainsi qu'un agent de compatibilisation (inhibiteur d'exsudation). Ces compositions contiennent de préférence un agent ignifugeant et d'autres additifs halogénés en quantité suffisante pour former une composition dont la teneur en halogène est d'environ 2,0 % en poids supérieure à celle de la résine de poly(chlorure de vinyle), de la résine de poly(chlorure de vinyle) chlorée ou du mélange de ces résines. Ces compositions peuvent satisfaire aux normes d'ignifugation avec de plus petites quantités d'agent ignifugeant, ce qui réduit le coût de la composition, et elles peuvent également être formulées de façon à pouvoir être utilisées plus facilement dans des procédés de fabrication de fils et de câbles.
PCT/US1998/021898 1997-10-16 1998-10-16 Compositions a base de chlorure de polyvinyle pour cables de vides techniques WO1999019395A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU10948/99A AU1094899A (en) 1997-10-16 1998-10-16 Polyvinyl chloride based plenum cable compositions
IL13548698A IL135486A0 (en) 1997-10-16 1998-10-16 Polyvinyl chloride based flame retardant compositions
KR1020007004055A KR20010024512A (ko) 1997-10-16 1998-10-16 폴리비닐 클로라이드계 플레넘 케이블 조성물
EP98953618A EP1023380A1 (fr) 1997-10-16 1998-10-16 Compositions a base de chlorure de polyvinyle pour cables de vides techniques

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US6243597P 1997-10-16 1997-10-16
US60/062,435 1997-10-16
US17257898A 1998-10-13 1998-10-13
US09/172,578 1998-10-13

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KR (1) KR20010024512A (fr)
AU (1) AU1094899A (fr)
IL (1) IL135486A0 (fr)
WO (1) WO1999019395A1 (fr)

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WO2010013851A1 (fr) * 2008-07-28 2010-02-04 Ls Cable Ltd. Composition de résine pour matière d'enrobage de câbles électriques et câbles électriques l'utilisant
CN101962459A (zh) * 2010-10-22 2011-02-02 青岛国恩科技发展有限公司 一种阻燃高流动复合材料及制备方法
EP2489705A1 (fr) * 2011-02-21 2012-08-22 Vestel Elektronik Sanayi ve Ticaret A.S. Procédé de production de peinture en polymère ayant des propriétés ininflammables
WO2014078540A1 (fr) 2012-11-19 2014-05-22 General Cable Technologies Corporation Composition de gaine pour des câbles de colonne montante et de gaine centrale
CN105968644A (zh) * 2016-06-26 2016-09-28 陈旭 一种低烟无卤环保pvc阻燃复合材料
CN107603510A (zh) * 2017-09-19 2018-01-19 常州百佳年代薄膜科技股份有限公司 含磷丙烯酸酯阻燃剂、阻燃eva胶膜及其制备方法
CN109486055A (zh) * 2018-10-18 2019-03-19 重庆伟星新型建材有限公司 环保型pvc-u电工套管配方
CN109535617A (zh) * 2018-11-06 2019-03-29 苏州国宇碳纤维科技有限公司 一种pvc电缆保护管的生产工艺
CN113402828A (zh) * 2021-08-02 2021-09-17 安徽滁州德威新材料有限公司 一种轨道交通用高阻燃a类低烟低卤pvc护套料及其制备方法

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FR2448554A1 (fr) * 1979-02-09 1980-09-05 Wacker Chemie Gmbh Matieres a base de polychlorure de vinyle plastifiees et leurs applications, notamment pour le gainage et l'isolement de conducteurs electriques

Cited By (13)

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WO2010013851A1 (fr) * 2008-07-28 2010-02-04 Ls Cable Ltd. Composition de résine pour matière d'enrobage de câbles électriques et câbles électriques l'utilisant
CN101962459A (zh) * 2010-10-22 2011-02-02 青岛国恩科技发展有限公司 一种阻燃高流动复合材料及制备方法
EP2489705A1 (fr) * 2011-02-21 2012-08-22 Vestel Elektronik Sanayi ve Ticaret A.S. Procédé de production de peinture en polymère ayant des propriétés ininflammables
US9812231B2 (en) 2012-11-19 2017-11-07 General Cable Technologies Corporation Jacket composition for riser and plenum cables
EP2920793A4 (fr) * 2012-11-19 2016-11-30 Gen Cable Technologies Corp Composition de gaine pour des câbles de colonne montante et de gaine centrale
WO2014078540A1 (fr) 2012-11-19 2014-05-22 General Cable Technologies Corporation Composition de gaine pour des câbles de colonne montante et de gaine centrale
CN105968644A (zh) * 2016-06-26 2016-09-28 陈旭 一种低烟无卤环保pvc阻燃复合材料
CN107603510A (zh) * 2017-09-19 2018-01-19 常州百佳年代薄膜科技股份有限公司 含磷丙烯酸酯阻燃剂、阻燃eva胶膜及其制备方法
CN107603510B (zh) * 2017-09-19 2019-04-09 常州百佳年代薄膜科技股份有限公司 阻燃eva胶膜及其制备方法
CN109486055A (zh) * 2018-10-18 2019-03-19 重庆伟星新型建材有限公司 环保型pvc-u电工套管配方
CN109486055B (zh) * 2018-10-18 2021-04-27 重庆伟星新型建材有限公司 环保型pvc-u电工套管配方
CN109535617A (zh) * 2018-11-06 2019-03-29 苏州国宇碳纤维科技有限公司 一种pvc电缆保护管的生产工艺
CN113402828A (zh) * 2021-08-02 2021-09-17 安徽滁州德威新材料有限公司 一种轨道交通用高阻燃a类低烟低卤pvc护套料及其制备方法

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IL135486A0 (en) 2001-05-20
EP1023380A1 (fr) 2000-08-02
AU1094899A (en) 1999-05-03

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