WO2016101979A1 - Revêtement exempt de métaux lourds retardateur de flamme pour câble électrique - Google Patents

Revêtement exempt de métaux lourds retardateur de flamme pour câble électrique Download PDF

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Publication number
WO2016101979A1
WO2016101979A1 PCT/EP2014/079023 EP2014079023W WO2016101979A1 WO 2016101979 A1 WO2016101979 A1 WO 2016101979A1 EP 2014079023 W EP2014079023 W EP 2014079023W WO 2016101979 A1 WO2016101979 A1 WO 2016101979A1
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WO
WIPO (PCT)
Prior art keywords
electrical cable
flame
retardant
cable according
phr
Prior art date
Application number
PCT/EP2014/079023
Other languages
English (en)
Inventor
Vito SCRIMA
Fabio TOSI
Original Assignee
Prysmian S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Prysmian S.P.A. filed Critical Prysmian S.P.A.
Priority to PCT/EP2014/079023 priority Critical patent/WO2016101979A1/fr
Publication of WO2016101979A1 publication Critical patent/WO2016101979A1/fr

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Classifications

    • 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
    • C08K3/016—Flame-proofing or flame-retarding additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • 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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/11—Esters; Ether-esters of acyclic polycarboxylic 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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/12—Esters; Ether-esters of cyclic polycarboxylic 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
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/38—Thiocarbonic acids; Derivatives thereof, e.g. xanthates ; i.e. compounds containing -X-C(=X)- groups, X being oxygen or sulfur, at least one X being sulfur
    • 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
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
    • C08K5/523—Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • 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
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224—Magnesium hydroxide
    • 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
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • 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
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • 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
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/267—Magnesium carbonate
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K

Definitions

  • the present invention relates to flame-retardant heavy metal-free electrical cables, in particular for low voltage power transmission. Also, the invention relates to flame- retardant heavy metal-free compositions suitable for producing said cables.
  • Flame-retardant cables are generally produced by extruding a flame-retardant coating made of a polymer composition having flame-retardant properties per se or imparted by the addition of a suitable flame-retardant additive over the core of the cable.
  • Polyvinyl chloride (PVC) is a polymeric material widely used in cable construction. Pure PVC is rather rigid and to make it suitably flexible for cable manufacturing it is added with plasticizers, the very commonly used being phthalates as from, for example, WO 2013/048775.
  • PVC polymer when PVC polymer is added with plasticizers in order to become flexible and suitable for being used in many different applications where its flexibility is an issue, it should be also added with suitable flame-retardant fillers, such as magnesium or aluminium hydroxides, so that the resulting PVC polymer can impart the cable with suitable flame retardancy according to the standard, for example IEC 60332-1-2 (07- 2004).
  • suitable flame-retardant fillers such as magnesium or aluminium hydroxides
  • a flame-retardant synergistic agent typically antimony trioxide (Sb 2 O3)
  • Sb 2 O3 antimony trioxide
  • SFT Standard Pollution control Authority
  • PVC must also be stabilized, in order to be processed, against the action of heat required at processing temperatures, as reported, for example, by WO 2014/013284.
  • the necessary protection is provided by the addition of heat stabilizers.
  • PVC molecule is unstable to heat and light. Heating PVC causes breakage of the polymer chains, liberating hydrochloric acid in the gaseous state. HCl catalyzes additional degradation, releasing large quantities of corrosive HCl.
  • the main classes of PVC stabilizers are complex mixtures of metal, for example calcium/zinc (Ca/Zn) stabilizers.
  • Nabaltec launched a product based on calcium aluminum hydrate carbonate (CAHC).
  • ATH Apyral 40CD
  • ATO antimony oxide
  • CAHC Actilox calcium aluminum hydrate carbonate
  • LOI limiting oxygen index
  • the Applicant faced the problem of providing flame -retardant cables having a significant limiting oxygen index (LOI) (preferably greater than 30%) by using a flame- retardant heavy metal-free composition (free from antimony trioxide and Ca/Zn stabilizers) having good processability and suitable mechanical properties, particularly in terms of tensile strength and elongation at break, even after thermal ageing.
  • LOI limiting oxygen index
  • LOI limiting oxygen index
  • Ca/Zn stabilizers can be replaced by calcium aluminum hydrate carbonate (CAHC), while Sb 2 03 can be replaced by aryl phosphates that, in addition, can play a role as co-plasticizer.
  • CAHC calcium aluminum hydrate carbonate
  • Sb 2 03 can be replaced by aryl phosphates that, in addition, can play a role as co-plasticizer.
  • a cable with at least one flame -retardant heavy metal-free coating based on polyvinyl chloride (PVC) comprising a calcium aluminum hydrate carbonate, an aryl phosphate, a inorganic flame -retardant filler and a plasticizer have a LOI greater than 30% when an amount of inorganic flame-retardant filler of at least 50 phr and up to 100 phr or even more is used.
  • PVC polyvinyl chloride
  • the Applicant found that with the above combination of components, such a "heavy" amount of inorganic filler does not decrease processability and mechanical properties, even after thermal ageing, of the resulting composition.
  • the above flame-retardant cable coating according to the invention being totally free of heavy metals, allows to overcoming the above mentioned drawbacks, in particular in terms of toxicity.
  • the present invention relates to an electrical cable comprising at least one conductor and at least one coating made from a flame-retardant heavy metal-free composition, composition comprising:
  • PVC polyvinyl chloride
  • an inorganic flame-retardant filler (d) an inorganic flame-retardant filler; (e) a plasticizer; wherein the inorganic flame-retardant filler (d) is present in an amount of at least 50 phr.
  • flame-retardant is meant a cable provided with a material having the capacity of delaying the flame propagation according to IEC 60332-1-2 (07-2004).
  • heavy metal it is meant an element provided with atomic number greater than 20, such as: zinc, arsenic, lead, copper, iron, manganese and antimony.
  • conductor is meant a element of elongate shape made of an electrically conductive metallic material, e.g. aluminium or copper or composite thereof.
  • Polyvinyl chloride is produced by polymerization of the monomer vinyl chloride (VCM).
  • VCM monomer vinyl chloride
  • the electrical cable according to the invention is preferably a low voltage cable. In the present description and claims as "low voltage” is meant a voltage of 1.5 kV at most.
  • the electrical cable of the invention can have one or more conductors.
  • Each conductor of the electrical cable of the invention can be surrounded by insulating layer, preferably in contact therewith, and by a sheath.
  • the sheath preferably collectively surrounds all of the cable conductors.
  • at least the sheath is made from a flame-retardant heavy metal-free composition according to the present invention.
  • the electrical cable of the invention has a limiting oxygen index (LOI) greater than 30%.
  • LOI limiting oxygen index
  • the present invention relates to a flame-retardant heavy metal-free composition comprising:
  • PVC polyvinyl chloride
  • an aryl phosphate (d) an inorganic flame-retardant filler; (e) a plasticizer; wherein the inorganic flame -retardant filler (d) is present in an amount of at least 50 phr.
  • the calcium aluminium hydrate carbonate (b) can be selected from those which can be identified, for example, by the following general formula (I):
  • m and n are equal to 4.
  • Examples of calcium aluminium hydrate carbonates which are currently commercially available include the product Actilox® CAHC from Nabaltec.
  • the calcium aluminium hydrate carbonate is advantageously used in the present invention as PVC stabilizer in order to replace Ca/Zn stabilizer.
  • the aryl phosphate (c) is preferably selected from triaryl phosphates, alkyl diaryl phosphates and mixtures thereof.
  • the aryl phosphate (c) of the invention is selected from: triphenyl phosphate, trixylenyl phosphate, tricresyl phosphate, cresyl diphenyl phosphate, tris(isopropylphenyl) phosphate, isopropylphenyl diphenyl phosphate, tertbutylphenyl diphenyl phosphate, 2-ethylhexyl diphenyl phosphate, isodecyl diphenyl phosphate and tetraphenyl resorcinol diphosphate.
  • the triaryl phosphate (c) is triaryl phosphate isopropylated.
  • aryl phosphates (c) are advantageously used in the present invention in order to replace antimony trioxide.
  • the flame -retardant filler (d) may be selected from hydroxides, carbonates, hydrated oxides, hydrated salts of metals, such as: magnesium hydroxide (either synthetic or natural, e.g. brucite), aluminium hydroxide, hydrated magnesium carbonate, magnesium carbonate, calcium carbonate or mixtures thereof. Magnesium carbonate, aluminium hydroxide and magnesium hydroxide are particularly preferred.
  • the plasticizer (e) is selected from phthalate and non-phthalate plasticizers.
  • Phthalate plasticizers suitable for the present invention can be selected from the group comprising di(2-ethylhexyl) phthalate (DEHP), diisononyl phthalate (DINP), diisodecyl phthalate (DIDP) and diisotridecyl phthalate (DITP).
  • Non-phtalate plasticizers suitable for the present invention can be selected from the group comprising dioctyl terephthalate (DOTP), trioctyl trimellitate (TOTM), 1,2- cyclohexane dicarboxylic acid diisononyl ester (DINCH) and citrate -based plasticizers. DOTP and TOTM are particularly preferred.
  • Non-phtalate plasticizers are advantageous also due to some favorable toxicological profile compared to phthalates.
  • the calcium aluminum hydrate carbonate (b) is present in an amount of from 2.5 to 10 phr.
  • the aryl phosphate (c) is present in an amount of from 15 to 50 phr. More preferably, the aryl phosphate (c) is present in an amount from 25 to 30 phr.
  • the inorganic flame -retardant filler (d) is present in an amount of from 50 to 100 phr. More preferably, the inorganic flame -retardant filler (d) is present in an amount from 50 to 90 phr. Amount s of inorganic flame -retardant filler (d) greater than 100 phr could provide a flame-retardant composition according to the invention with suitable mechanical features for the use in a cable coating, though limited LOI value increases are expected.
  • the plasticizer (e) is present in an amount of from 15 to 50 phr. More preferably, the plasticizer (e) is present in an amount from 15 to 30 phr.
  • said at least one processing co-adjuvant is added in an amount of from 1 to 2 phr.
  • the flame-retardant heavy metal-free compositions according to the present invention can be prepared by mixing the PVC resin and the additives according to methods known in the art, for example using an internal mixer (turbomixer), or continuous mixers of the Ko-Kneader (Buss) type or of the co- rotating or counter-rotating twin-screw type.
  • the flame-retardant heavy metal-free composition according to the present invention may be used to make an outer sheath on a conductor previously coated with an insulating layer.
  • the application of the flame-retardant heavy metal-free composition can be carried out, for example, by extrusion or by co-extrusion with the insulating layer.
  • the fire resistant power cable 10 is of the tripolar type comprising three conductors 2 each covered by an insulating layer 3 to form a core 1.
  • the three cores 1 are encircled by a sheath 5.
  • the three cores 1 are stranded together forming interstitial zones defined as the spaces between the cores 1 and the cylinder (the sheath 5) enveloping such cores.
  • a bedding or interstitial filler 4 fills said interstitial zones.
  • the insulating constant ki of the electrical insulating layer 3 is such that the required electric insulating properties are compatible with the standards (e.g. CEI 20-34_2001, IEC 60502-1, 2 nd ed.-2004 or other equivalent thereto).
  • the electrical insulating layer 3 has an insulating constant ki equal to or greater than 3.67 MOhm » km at 90°C.
  • the conductors 2 can be in form of a solid rod or of bundled wires made of electrically conductive metal such as copper or aluminum or composite thereof.
  • the sheath 5 is made of the flame-retardant heavy metal-free composition according to the present invention and, usually, is applied by extrusion.
  • the flame-retardant compositions of the examples reported in Table 1 were prepared in a closed turbomixer (volume of the mixing chamber: 3000 cm 3 ). The amounts are reported as parts by weight with respect to 100 parts by weight of the PVC resin. TABLE 1
  • the examples marked by the asterisk (*) are the comparative ones.
  • DINP diisononyl phthalate
  • DOTP dioctyl terephthalate triArP i-Pro : triaryl phosphate isopropylated
  • Ca/Zn stabilizer Ca: Zn ratio of 16: 1 (marketed by Baerlocher)
  • CAHC calcium aluminum hydrate carbonate wherein m is 4 (marketed by Nabaltec as Actilox® CAHC)
  • Si0 2 spherical, submicron particles of amorphous silicon dioxide (BET 18-25 m 2 /g) marketed by Elkem AS, as Sidistar® T 120
  • BET 18-25 m 2 /g amorphous silicon dioxide
  • Sidistar® T 120 The compositions of Examples 1-12 of Table 1 were evaluated for a number of properties and the results are set forth in Table 2.
  • LOI limiting oxygen index
  • the thermal stability was measured according to IEC 60811-3-2 (1985). Tensile strength and elongation at break were measured according to IEC 60811-501 ED. l (2012) on dumbbells. The same measurements of mechanical properties were also performed after thermal ageing, carried out on the same cable specimens after exposure in air oven for 168 hours at 100°C.
  • Examples with the comparative compositions 1-6 does not have the sought LOI value greater than 30%.
  • Examples 1-6 have a LOI of 30% or less showing that their concentration of aryl phosphate is not sufficient for boosting the action of the flame retardant filler at an amount lower than 50 phr.
  • the comparative compositions 1-2 comprise the potentially toxic Ca/Zn stabilizer.
  • the comparative composition of Example 7 has the sought LOI value greater than 30%, but comprises the potentially toxic heavy-metal additives (Ca/Zn and Sb 2 03).
  • compositions 8-12 according to the invention have a LOI value greater than 30% and suitable mechanical properties even after ageing.
  • LOI value greater than 30%
  • suitable mechanical properties even after ageing.

Abstract

La présente invention concerne un câble électrique comprenant au moins un conducteur et au moins un revêtement fabriqué à partir d'une composition exempte de métaux lourds retardatrice de flammes, comprenant (a) du poly(chlorure de vinyle) (PVC) en tant que matériau de base polymère; (b) un carbonate de calcium hydroxyde d'aluminium; (c) un phosphate d'aryle; (d) une charge ignifuge inorganique; (e) un plastifiant.
PCT/EP2014/079023 2014-12-22 2014-12-22 Revêtement exempt de métaux lourds retardateur de flamme pour câble électrique WO2016101979A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/079023 WO2016101979A1 (fr) 2014-12-22 2014-12-22 Revêtement exempt de métaux lourds retardateur de flamme pour câble électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/079023 WO2016101979A1 (fr) 2014-12-22 2014-12-22 Revêtement exempt de métaux lourds retardateur de flamme pour câble électrique

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107123464A (zh) * 2017-06-08 2017-09-01 成都新三电线厂 无机阻燃型聚氯乙烯环保电缆
CN107507662A (zh) * 2017-08-15 2017-12-22 刘海强 分体式集束电缆
IT201900023169A1 (it) * 2019-12-06 2021-06-06 Prysmian Spa Cavo elettrico ritardante di fiamma
WO2021129216A1 (fr) * 2019-12-28 2021-07-01 江苏达胜高聚物股份有限公司 Matériau de câble en pvc et procédé de préparation associé
US11984242B2 (en) 2019-12-06 2024-05-14 Prysmian S.P.A. Flame-retardant electrical cable

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7919066B2 (en) 2006-11-21 2011-04-05 Nabaltec Ag Calcium carbonate hydroxodialuminates comprising a hexagonal platelet-shaped crystal habit
US20110275747A1 (en) * 2010-05-06 2011-11-10 Peter Hacker Stabilizer systems for polymers containing halogen
US20120208941A1 (en) * 2009-10-14 2012-08-16 Walter Reith Stabiliser combinations for halogenated polymers
WO2013048775A1 (fr) 2011-09-30 2013-04-04 Dow Global Technologies Llc Procédé de mélange d'un polychlorure de vinyle et d'un plastifiant de type bio
US8506854B2 (en) 2007-08-10 2013-08-13 Nabaltec Ag Stabilizer system for halogenated polymers
WO2014013284A1 (fr) 2012-07-17 2014-01-23 Italmatch Chemicals S.P.A. Compositions ignifuges de pvc

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7919066B2 (en) 2006-11-21 2011-04-05 Nabaltec Ag Calcium carbonate hydroxodialuminates comprising a hexagonal platelet-shaped crystal habit
US8506854B2 (en) 2007-08-10 2013-08-13 Nabaltec Ag Stabilizer system for halogenated polymers
US20120208941A1 (en) * 2009-10-14 2012-08-16 Walter Reith Stabiliser combinations for halogenated polymers
US20110275747A1 (en) * 2010-05-06 2011-11-10 Peter Hacker Stabilizer systems for polymers containing halogen
WO2013048775A1 (fr) 2011-09-30 2013-04-04 Dow Global Technologies Llc Procédé de mélange d'un polychlorure de vinyle et d'un plastifiant de type bio
WO2014013284A1 (fr) 2012-07-17 2014-01-23 Italmatch Chemicals S.P.A. Compositions ignifuges de pvc

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PAUL Y. MOY, PROCEEDINGS OF THE 61ST IWCS CONFERENCE, 2012, pages 373

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107123464A (zh) * 2017-06-08 2017-09-01 成都新三电线厂 无机阻燃型聚氯乙烯环保电缆
CN107507662A (zh) * 2017-08-15 2017-12-22 刘海强 分体式集束电缆
IT201900023169A1 (it) * 2019-12-06 2021-06-06 Prysmian Spa Cavo elettrico ritardante di fiamma
EP3832672A1 (fr) * 2019-12-06 2021-06-09 Prysmian S.p.A. Câble électrique ignifuge
US11984242B2 (en) 2019-12-06 2024-05-14 Prysmian S.P.A. Flame-retardant electrical cable
WO2021129216A1 (fr) * 2019-12-28 2021-07-01 江苏达胜高聚物股份有限公司 Matériau de câble en pvc et procédé de préparation associé

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