WO1999005214A1 - Flame retardant polyolefin compositions - Google Patents

Flame retardant polyolefin compositions Download PDF

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Publication number
WO1999005214A1
WO1999005214A1 PCT/US1998/015229 US9815229W WO9905214A1 WO 1999005214 A1 WO1999005214 A1 WO 1999005214A1 US 9815229 W US9815229 W US 9815229W WO 9905214 A1 WO9905214 A1 WO 9905214A1
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WO
WIPO (PCT)
Prior art keywords
weight
blend
component
vinyl acetate
density polyethylene
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US1998/015229
Other languages
English (en)
French (fr)
Inventor
Juan-Antonio Garcia Duran
Loic Pierre Rolland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to AT98935945T priority Critical patent/ATE440905T1/de
Priority to US09/462,971 priority patent/US6753372B1/en
Priority to EP98935945A priority patent/EP0998528B1/en
Priority to DE69841100T priority patent/DE69841100D1/de
Priority to AU85091/98A priority patent/AU740250B2/en
Priority to BR9811029-2A priority patent/BR9811029A/pt
Priority to CA002293331A priority patent/CA2293331A1/en
Priority to JP2000504199A priority patent/JP4663112B2/ja
Publication of WO1999005214A1 publication Critical patent/WO1999005214A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
    • C08L23/0869—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen with unsaturated acids, e.g. [meth]acrylic acid; with unsaturated esters, e.g. [meth]acrylic acid esters
    • 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
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-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
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethylene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms
    • C08L23/0815—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms with aliphatic 1-olefins containing one carbon-to-carbon double bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
    • C08L23/0853—Ethylene vinyl acetate copolymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/003—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/22—Halogen free composition
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/02—Polyalkylene oxides

Definitions

  • This invention relates to polyolefin compositions and more particularly to such compositions which are halogen- free and flame retardant, and to shaped articles made from them.
  • PVC Polyvinyl chloride
  • halogen- free flame- retardant materials are desirable to provide both insulation and jacketing in low-voltage cables in areas where it is necessary to avoid the generation of hazardous gases in the event of fire.
  • Such areas where halogen- free low-voltage cables are useful include hotels, hospitals, schools, theaters and other such public spaces.
  • Important characteristics for jacketing materials is that they are highly flame retardant, good heat performance and good physical properties.
  • compositions that are suitable for use as coatings for electrical cables. These compositions contain several components that are similar to those described herein, but lack, i.a., the terpolymer described herein.
  • a flame retardant, halogen- free polymer composition comprising a blend of
  • ethylene vinyl acetate carbon monoxide terpolymer containing 30-90% by weight ethylene, 10-70% by weight vinyl acetate and 1-40% by weight carbon monoxide;
  • an ethylene vinyl acetate or polyolefin selected from the group consisting of (a) ethylene vinyl acetate containing 25-90% by weight ethylene and 10-75% by weight vinyl acetate, (b) a linear low density polyethylene, (c) a low density polyethylene, (d) a very low density polyethylene and (d) a high density polyethylene; and mixtures thereof;
  • an ethylene vinyl acetate or polyolefin selected from the group consisting of (a) ethylene vinyl acetate containing 25-90% by weight ethylene and 10-75% by weight vinyl acetate, (b) a linear low density polyethylene, (c) a low density polyethylene, (d) a very low density polyethylene and (d) a high density polyethylene; and mixtures thereof; each of which is grafted with 0.05-3 % by weight of a carboxylic acid or an anhydride thereof ; and (4) an inorganic filler.
  • composition of the present invention includes antioxidants, titanium dioxide (for UV resistance and to give a white color to the product) , processing aids like zinc stearate and UV stabilizers .
  • the present invention relates to flame retardant, halogen- free thermoplastic polymer blends which are useful in wire and cable coatings or in sheet form such as for use in floor tiles. These blends generally are formed by combining an ethylene vinyl acetate carbon monoxide (EVACO) terpolymer, an ethylene vinyl acetate (EVA) copolymer or polyolefin selected from EVA copolymer, a linear low density polyethylene, a low density polyethylene, a very low density polyethylene, a high density polyethylene and mixtures thereof , an ethylene vinyl acetate (EVA) copolymer or polyolefin selected from EVA copolymer, a linear low density polyethylene, a low density polyethylene, a very low density polyethylene, a high density polyethylene and mixtures thereof, each of which is grafted with a carboxylic acid or anhydride thereof, and an inorganic filler.
  • EVACO ethylene vinyl acetate carbon monoxide
  • EVA ethylene vinyl a
  • Polymer blends according to the present invention can be formed into wire and cable coatings or sheet form for uses such as for floor tiles, and have many properties comparable to polyvinyl chloride (PVC) containing blends, but are free from halogen.
  • PVC polyvinyl chloride
  • the EVACO terpolymer (component (1)) useful in this invention preferably contains 30-90% by weight of ethylene, 10-70% by weight of vinyl acetate and 1-20% by weight of carbon monoxide, more preferably 55-65% by weight of ethylene and 20-30% by weight of vinyl acetate and 5-15% by weight carbon monoxide.
  • these EVACO" s have a melt flow index (MFI) in the range of 1-50 g/10 min. , preferably in the range of 10-40 g/lOmin. as determined by ASTM D-1238 (measured at 2,16 kg and 190 °C) and are well-known in the art.
  • Component (1) preferably comprises 1-60% by weight of the composition of the present invention, more preferably 5- 25% by weight, still more preferably 5-15% by weight.
  • the EVA copolymer when used as component (2) in this invention preferably contains 25-90% by weight of ethylene and 10-75% by weight of vinyl acetate, more preferably 55-75 % by weight of ethylene and 15-30 % by weight of vinyl acetate.
  • these EVA'S have a melt flow index (MFI) in the range of 0.05-100 g/10 min., preferably less than 50 g/lOmin. as determined by ASTM D- 1238 (measured at 2,16 kg and 190 °C) and are well-known in the art .
  • the polyolefins when used as component (2) in general will have a melt flow index (MFI) in the range of 0.05- 100 g/10 min. , preferably less than 50 g/lOmin. as determined by ASTM D-1238 (measured at 2,16 kg and 190 °C) and are well-known in the art.
  • MFI melt flow index
  • Component (2) preferably comprises 1-50% by weight of the composition of the present invention, more preferably 5- 25% by weight, still more preferably 10-20% by weight.
  • Component (3) is as defined as for component (2) , but is further grafted with 0.05-3 % by weight of a carboxylic acid or anhydride thereof, preferably maleic anhydride.
  • component (3) will have a melt flow index (MFI) in the range of 0.05-100 g/10 min., preferably less than 20 g/lOmin. as determined by ASTM D-1238 (measured at 2,16 kg and 190 °C) .
  • Component (3) preferably comprises 1-40% by weight of the composition of the present invention, more preferably 1- 15% by weight, still more preferably 3-10% by weight.
  • Component (4) is an inorganic filler.
  • Suitable inorganic fillers are known in the art; preferred ones will also possess flame retardant characteristics.
  • Specific, preferred inorganic fillers include aluminum trihydrate, magnesium hydroxide, calcium carbonate, calcinated clay, talcum, mica, zinc borates and mixtures thereof.
  • Component (4) preferably comprises 20-85% by weight of the composition of the present invention, more preferably 50-75% by weight, still more preferably 60-70% by weight.
  • compositions with higher levels of compatibilization have higher mechanical strength, which allow for higher levels of inorganic filler and thus, compositions with higher flame retardancy.
  • composition of the present invention can be blended with common additives such as antioxidants, UV stabilizers, lubricants (e.g., oleamide) , antiblocking agents, antistatic agents, waxes, pigments, titanium dioxide, talc and other processing aids (e.g., zinc stearate ) known in the polymer compounding art .
  • additives may comprise up to about 10 weight percent of the total composition based on polymer components, flame retardant fillers plus additives.
  • the blends of the invention can be prepared by mixing the polymeric ingredients flame retardant fillers and optional additives by use of conventional masticating equipment, for example, a rubber mill, Brabender Mixer, Banbury Mixer, Buss-ko kneader, Farrel continuous mixer or twin screw continuous mixer. Mixing times should be sufficient to obtain homogeneous blends and a proper reaction between maleic anhydride groups and the flame retardant fillers (component (4)). Typically, mixing times of about 5 minutes and mixing temperatures of 160 °C are satisfactory. If the polymer blend is non- homogeneous, additional mixing is required.
  • conventional masticating equipment for example, a rubber mill, Brabender Mixer, Banbury Mixer, Buss-ko kneader, Farrel continuous mixer or twin screw continuous mixer.
  • Mixing times should be sufficient to obtain homogeneous blends and a proper reaction between maleic anhydride groups and the flame retardant fillers (component (4)). Typically, mixing times of about 5 minutes and
  • EVA ethylene vinyl acetate
  • EVA+MAH ethylene vinyl acetate grafted with maleic anhydride
  • HDPE+MAH high density polyethylene grafted with maleic anhydride
  • a blend is prepared by melt -compounding the following components in the proportions set forth in Table 1 below.
  • EVACO 71.5% ethylene, 20.5% vinyl acetate and 8% carbon monoxide
  • MFI 190°/2.16 kg
  • EVA 72% ethylene and 28% vinyl acetate
  • MFI 190°/2.16 kg
  • EVA+MAH (72% ethylene and 28% vinyl acetate grafted with 1.5 % MAH) having a MFI (190°/2.16 kg) of 1.4 HDPE+MAH (grafted with 0.9 % MAH) having a density of 0.955 g/cc and a MFI (190°/2.16 kg) of 2.0 VLDPE having a density of 0.902 g/cc and a MFI (190°/2.16 kg) of 1.0 antioxidant - phenolic type available under the name IRGANOX 1010 from Ciba Specialty Chemicals

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Insulated Conductors (AREA)
  • Fireproofing Substances (AREA)
PCT/US1998/015229 1997-07-25 1998-07-23 Flame retardant polyolefin compositions Ceased WO1999005214A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AT98935945T ATE440905T1 (de) 1997-07-25 1998-07-23 Flammhemmende polyolefinzusammensetzung
US09/462,971 US6753372B1 (en) 1997-07-25 1998-07-23 Flame retardant polyolefin compositions
EP98935945A EP0998528B1 (en) 1997-07-25 1998-07-23 Flame retardant polyolefin compositions
DE69841100T DE69841100D1 (de) 1997-07-25 1998-07-23 Flammhemmende polyolefinzusammensetzung
AU85091/98A AU740250B2 (en) 1997-07-25 1998-07-23 Flame retardant polyolefin compositions
BR9811029-2A BR9811029A (pt) 1997-07-25 1998-07-23 Composição de polìmero, mistura e artigo moldado
CA002293331A CA2293331A1 (en) 1997-07-25 1998-07-23 Flame retardant polyolefin compositions
JP2000504199A JP4663112B2 (ja) 1997-07-25 1998-07-23 難燃性ポリオレフィン組成物

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97202335.2 1997-07-25
EP97202335A EP0893469A1 (en) 1997-07-25 1997-07-25 Polyolefin compositions

Publications (1)

Publication Number Publication Date
WO1999005214A1 true WO1999005214A1 (en) 1999-02-04

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ID=8228591

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/015229 Ceased WO1999005214A1 (en) 1997-07-25 1998-07-23 Flame retardant polyolefin compositions

Country Status (11)

Country Link
EP (2) EP0893469A1 (https=)
JP (1) JP4663112B2 (https=)
KR (1) KR100630992B1 (https=)
AT (1) ATE440905T1 (https=)
AU (1) AU740250B2 (https=)
BR (1) BR9811029A (https=)
CA (1) CA2293331A1 (https=)
DE (1) DE69841100D1 (https=)
ES (1) ES2332389T3 (https=)
TW (1) TW470770B (https=)
WO (1) WO1999005214A1 (https=)

Cited By (4)

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KR100361561B1 (ko) * 1999-10-28 2003-01-24 동방산업주식회사 난연성 폴리올레핀 발포체 조성물과 그 제조방법
DE10153408A1 (de) * 2001-09-20 2003-04-17 Benecke Kaliko Ag Hochfrequenzverschweißbare und kälteflexible Polymermischung sowie deren Verwendung
US7058372B1 (en) 2002-11-01 2006-06-06 Integration Associates Inc. Method and apparatus for automatic tuning of a resonant loop antenna
CN105295185A (zh) * 2015-08-31 2016-02-03 无锡市嘉邦电力管道厂 一种导热防静电无卤阻燃型复合材料及其制备方法和用途

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DE19921472A1 (de) 1999-05-08 2000-11-16 Sued Chemie Ag Flammgeschützte Polymerzusammensetzung
US20060148988A1 (en) 2004-10-06 2006-07-06 Chou Richard T Miscible blends of ethylene copolymers with improved temperature resistance
DE602004016550D1 (de) * 2003-11-25 2008-10-23 Du Pont Flammwidrige halogenfreie zusammensetzungen
MX2007002890A (es) 2004-09-09 2007-05-08 Du Pont Mezcla termoplastica del copolimero de polietileno de baja densidad lineal y acetato de etilen vinilo.
DE102009034700B4 (de) 2008-07-25 2013-08-22 Bene_Fit Systems Gmbh & Co. Kg Nanoskalige Calcium- und/oder Magnesiumverbindungen zur Verwendung als Flammschutz in Polymeren
DE102009005007A1 (de) * 2009-01-19 2010-07-22 Metzeler Technical Rubber Systems Gmbh Fußbodenbelag für Fahrzeuge zur Personenbeförderung, insbesondere für Flugzeuge
WO2011063849A1 (en) † 2009-11-27 2011-06-03 Tarkett Gdl S.A. Floor or wall covering
US8779061B2 (en) * 2011-10-26 2014-07-15 E I Du Pont De Nemours And Company Curable elastomeric compositions
FR2985731B1 (fr) 2012-01-17 2014-01-10 Arkema France Compositions thermoplastiques ignifugees a haute tenue mecanique, en particulier pour les cables electriques
FR3014893B1 (fr) * 2013-12-18 2016-01-01 Arkema France Compositions thermoplastiques ignifugees, en particulier pour les cables electriques
CN107236166B (zh) * 2015-05-11 2020-12-29 中广核高新核材科技（苏州）有限公司 用于石油平台的低烟无卤辐照交联耐泥浆阻燃电缆料的制备工艺
CN105400046B (zh) * 2015-12-15 2018-09-07 中广核三角洲（苏州）高聚物有限公司 汽车线用150℃辐照交联高耐磨无卤阻燃电缆料及其制备方法
EP3246359A1 (en) * 2016-05-19 2017-11-22 Nanosync Sp Z O O Method of producing halogen-free flame retardant polymer composites
US20220403151A1 (en) * 2019-08-28 2022-12-22 Dow Global Technologies Llc Polyethylene copolymer blend

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US4983665A (en) * 1988-09-09 1991-01-08 The B. F. Goodrich Company Flexible blend compositions based on overpolymers of vinyl chloride polymers on ethylene copolymers
US5189091A (en) * 1989-05-04 1993-02-23 The Dow Chemical Company Polycarbonate/aromatic polyester blends modified with a grafted olefin copolymer
US5276082A (en) * 1990-07-13 1994-01-04 Armstrong World Industries, Inc. Halogen-free floor covering
US5424362A (en) * 1993-04-28 1995-06-13 The Dow Chemical Company Paintable olefinic interpolymer compositions

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JP4663112B2 (ja) 2011-03-30
DE69841100D1 (de) 2009-10-08
EP0998528A4 (en) 2000-09-13
ES2332389T3 (es) 2010-02-03
JP2001510872A (ja) 2001-08-07
TW470770B (en) 2002-01-01
EP0893469A1 (en) 1999-01-27
EP0998528B1 (en) 2009-08-26
CA2293331A1 (en) 1999-02-04
EP0998528A1 (en) 2000-05-10
KR20010022189A (ko) 2001-03-15
AU8509198A (en) 1999-02-16
BR9811029A (pt) 2000-08-01
ATE440905T1 (de) 2009-09-15
AU740250B2 (en) 2001-11-01

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