DE3344588A1 - POLYMER BLEND FOR SHEATING CABLES AND CABLES - Google Patents

POLYMER BLEND FOR SHEATING CABLES AND CABLES

Info

Publication number
DE3344588A1
DE3344588A1 DE19833344588 DE3344588A DE3344588A1 DE 3344588 A1 DE3344588 A1 DE 3344588A1 DE 19833344588 DE19833344588 DE 19833344588 DE 3344588 A DE3344588 A DE 3344588A DE 3344588 A1 DE3344588 A1 DE 3344588A1
Authority
DE
Germany
Prior art keywords
vinyl acetate
weight
ethylene
cables
ethylene vinyl
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.)
Granted
Application number
DE19833344588
Other languages
German (de)
Other versions
DE3344588C2 (en
Inventor
Thomas Andreas 7141 Murr Klett
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.)
Kabelmetal Electro GmbH
Original Assignee
Standard Elektrik Lorenz AG
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 Standard Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG
Priority to DE19833344588 priority Critical patent/DE3344588C2/en
Priority to GB08429596A priority patent/GB2151236B/en
Priority to AU35861/84A priority patent/AU578256B2/en
Priority to NZ21034384A priority patent/NZ210343A/en
Priority to EP84114762A priority patent/EP0148416A3/en
Priority to NO844852A priority patent/NO844852L/en
Priority to FR8418746A priority patent/FR2556356B1/en
Publication of DE3344588A1 publication Critical patent/DE3344588A1/en
Priority to BE2/60787A priority patent/BE903192A/en
Application granted granted Critical
Publication of DE3344588C2 publication Critical patent/DE3344588C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Insulated Conductors (AREA)
  • Glass Compositions (AREA)
  • Organic Insulating Materials (AREA)

Description

_2_ 334U83_ 2 _ 334U83

T.A.KLett 1T.A.KLett 1

PoLymermischung zur UmmanteLung von Kabeln und LeitungenPolymer mix for sheathing of cables and wires

Die Erfindung bezieht sich auf eine silanvernetzbare Polymermi schung zur UmmanteLung von elektrischen und/oder optischen Kabein und Leitungen, enthaltend Copolymere aus ÄthyLenviny I-acetat und Äthylenbu.tylacrylat, darauf gepfropftes organisches Si lan zur Vernetzung, einen Vernetzungskatalysator, sowie einen.flammhemmenden Füllstoff. .The invention relates to a silane-crosslinkable polymer medium Training for sheathing electrical and / or optical cables and lines containing copolymers of EthyLenviny I-acetate and ethylene butyl acrylate, organic grafted thereon Si lan for crosslinking, a crosslinking catalyst, as well as a flame retardant filler. .

Polymermischungen der genannten Art zur Ummantelung vcn Kabeln und Leitungen sind im Handel erhältlich. Nach Ee i mischung des Katalysators werden sie hauptsächlich durch Extrudieren verarbeitet, wobei durch Einwirkung von Feuchtigkeit aus der umgebenden Atmosphäre infolge des aufgepfropften Si lans eine Si lanvernetzung oder Vulkanisation eintritt. Als Katalysator wird beispielsweise Dibutylzinndilaurat in Form eines 10%igen Batch auf Basis EVA verwendet. Die Silanvernetzung kann dadurch beschleunigt werden, daß das extrudierte Produkt in heißes Wasser eingebracht oder mit Wasserdampf behandelt wird. Das vernetzte Prcdukt hat eine Bruchdehnung von etwa 130% und einen Sauerstcffindex von 29%. Für manche Anwendungszwecke ist das Material nicht genug, -flammwidrig, was der verhältnismäßig niedrige Sauerstoff indexzeigt. Eine Erhöhung der FlammwidrigkeitPolymer mixtures of the type mentioned for sheathing vcn Cables and wires are available in stores. After mixing of the catalytic converter, they are mainly due to Extruding processed, being grafted by the action of moisture from the surrounding atmosphere as a result of Si lans a Si lan network or vulcanization entry. Dibutyltin dilaurate, for example, is used as a catalyst used in the form of a 10% batch based on EVA. The silane crosslinking can be accelerated that the extruded product is placed in hot water or treated with steam. The networked product has an elongation at break of about 130% and an oxygen index of 29%. For some uses the material is not enough, -flame retardant what the relatively low Oxygen index shows. An increase in flame resistance

T.A.KLett 1T.A.KLett 1

durch den Zusatz von weiterem ALuminiumhydroxid ist bei diesem Material, nicht mögLich. Außerdem hat das Material für manche Anwendungszwecke eine zu niedrige FLexibiLitat.by adding more aluminum hydroxide, this material, not possible. Besides, the material has For some purposes the flexibility is too low.

Aufgabe der vorliegenden Erfindung ist es, die eingangs genannte Potymermischung so zu modifizieren, daß das vernetzte Pro.dukt eine wesentlich bessere Flammwidrigkeit und eine größere Flexibilität hat.The object of the present invention is the initially to modify said Potymer Mixture so that the crosslinked Product has a much better flame retardancy and has greater flexibility.

Diese Aufgabe wird durch die im Kennzeichen des Anspruchs 1 genannten Maßnahmen gelöst.This object is achieved by the measures mentioned in the characterizing part of claim 1.

Vorteilhafte Weiterbildungen gehen aus den Unteransprüchen hervor.Advantageous further developments are based on the subclaims emerged.

Durch die Kombination der eingangs genannten Polymermischung mit einem 'Äthy lenvi ny lacetat copo lymeren mit einem Viny lacetatgeha It von 50% wird erreicht,, daß das Gemisch eine erhebliche Menge an Aluminiumhydroxid aufnehmen kann, wodurch die Flammwidrigkeit des Endproduktes stark verbessert wird. Gleichzeitig hat das Endprodukt eine wesentlich größere Flexibilität als die eingangs genannte Polymermischung.· Trotz dieser Modifikation läßt sich die Mischung wie die üblichen si lanvernetzbaren Polymermischungen vernetzen. Das Endprodukt hat eine Bruchdehnung von 150% und entspricht damit besser den Anforderungen der VDE 0207 Teil 27 als die Ausgangsmischung. Der Sauerstoff index beträgt ca. 40%, woraus hervorgeht, daß die Flammwidrikeit wesentlich verbessert werden konnte. Der Brandtest nach VDE 0472 Teil 804C wird deshalb auch mit dünnen KabelnBy combining the aforementioned polymer mixture with an 'Äthy lenvi ny lacetat copo lymeren with one Viny lacetatgeha It of 50% is achieved, that the mixture can absorb a significant amount of aluminum hydroxide, which greatly improves the flame retardancy of the end product will. At the same time, the end product has a significantly greater flexibility than the polymer mixture mentioned at the beginning. Despite this modification, the mixture can be crosslinked like the customary silicone crosslinkable polymer mixtures. The end product has an elongation at break of 150% and thus better meets the requirements of VDE 0207 Part 27 as the starting mix. The oxygen index is approx. 40%, from which it can be seen that the flame resistance could be improved significantly. The fire test according to VDE 0472 part 804C is therefore also carried out with thin cables

T.A.KLett 1T.A.KLett 1

gehalten. Trotz des höheren FüLLgrades ist das modifizierte Material wesentlich flexiblerals das eingangs genannte si lan-vernetzte Material.held. Despite the higher degree of filling, this is modified Material much more flexible than that mentioned at the beginning Si lan-linked material.

Die vernetzbare Polymermischung gemäß der Erfindung hat die nachfolgend angegebene Zusammensetzung, wobei das Äthy lenvinylacetat als EVA, und das Vinylacetat als VA bezei chnet sind:The crosslinkable polymer mixture according to the invention has the composition given below, the ethylene vinyl acetate as EVA, and the vinyl acetate as VA are denoted:

gepfropftes, flammwidriges Polymer 53 - 75 Gew.%grafted, flame retardant polymer 53 - 75% by weight

EVA-Copolymer (50%VA) 3-15 Gew.%EVA copolymer (50% VA) 3-15% by weight

Aluminiumhydroxid 21 - 32 Gew.%Aluminum hydroxide 21-32% by weight

Die bevorzugte Zusammensetzung besteht aus folgenden Anteilen: The preferred composition consists of the following proportions:

gepfropftes, flammwidriges Polymergrafted, flame retardant polymer

+Katalysator 146 Gewichtsteile+ Catalyst 146 parts by weight

EVA-Copolymer (50%VA) 40 GewichtsteiU ' EVA copolymer (50% VA) 40 GewichtsteiU '

Aluminiumhydroxid 85 GewichtsteileAluminum hydroxide 85 parts by weight

Die vernetzte Isoliermasse hat folgende Eigenschaften:The cross-linked insulating compound has the following properties:

Festigkeit ca. 9 N/mmStrength approx. 9 N / mm

Bruchdehnung ca. 150%Elongation at break approx. 150%

Shore A Härte ca. 88Shore A hardness approx. 88

Sauerstoff index ' ca. 40%Oxygen index 'approx. 40%

Die Vernetzungszeit von 1mm dicken Stahzlingen beträgt ca 3 Stunden im 70 C warmen Wa
torzugabe von 3% als Batch.The crosslinking time of 1mm thick steel pieces is about 3 hours in a 70 C warm wa
3% gate addition as a batch.

3 Stunden im 70 C warmen Wasserbad bei üb Ii eher .KataIysa-3 hours in a 70 C water bath at over.

Claims (5)

STANDARD ELEKTRIK LORENZ
AKTIENGESELLSCHAFT
Stut t g a r tSTANDARD ELECTRICS LORENZ
STOCK COMPANY
Stut tgart T.A.KLett 1T.A.KLett 1 PatentansprücheClaims Π . Si Lanve met zba re Po Lyme rmi se hung zur Ummantelung von
elektrischen und/oder optischen Kabeln und Leitungen, enthaltend Copolymere aus A'thylenvinylacetat und Ä'thylenbu-"tylacrylat, darauf gepfropftes organisches Si lan zur Vernetzung, einen Vernetzungskatalysator, sowie einen flammhemmenden Füllstoff, dadurch gekennzeich η e t, daß die Mischung zusätzlich 3 bis 15 Gewichtsprozent der Gesamtmenge Äthy lenviny lacetat mit einem Vinylacetatgehalt von 50%, sowie 21 bis 32 Gewichtsprozent der Gesamtmenge Aluminiumhydroxid enthält.Π. Si Lanve met zba re Po Lyme rmi hung for covering
electrical and / or optical cables and lines containing copolymers of ethylene vinyl acetate and ethylene butyl acrylate, organic silicon grafted thereon for crosslinking, a crosslinking catalyst, and a flame-retardant filler, characterized in that the mixture additionally 3 to Contains 15 percent by weight of the total amount of ethylene vinyl acetate with a vinyl acetate content of 50%, and 21 to 32 percent by weight of the total amount of aluminum hydroxide. 2. Polymermischung nach Anspruch 1, dadurch gekennzeichnet, daß der Gehalt an mit einem organischen Si lan gepfropften Copolymeren aus A'thylenvinylacetat und A'thylenbutylacrylat und dem Vernetzungskatalysator 53 bis 75 Gewichtsprozent der Gesamtmenge beträgt.2. Polymer mixture according to claim 1, characterized in that that the content of grafted with an organic Si lan Copolymers of ethylene vinyl acetate and ethylene butyl acrylate and the crosslinking catalyst 53 to 75 weight percent of the total amount. 3. Polymermischung nach Anspruch 1 oder 2, gekennzeichnet durch folgende Zusammensetzung: 145 Gewichtsteile
flammwidriges, gepfropftes Copolymer aus Ä'thylenvinylacetat und Äthylenbuty Iacrylat und Katalysator, 40 Gewichtsteile Ä'thylenvinylacetatcopolymer mit 50% Vinylacetat und 85 GewichtsteiIe Aluminiumhydroxid.3. Polymer mixture according to claim 1 or 2, characterized by the following composition: 145 parts by weight
Flame-retardant, grafted copolymer of ethylene vinyl acetate and ethylene butyl acrylate and catalyst, 40 parts by weight of ethylene vinyl acetate copolymer with 50% vinyl acetate and 85 parts by weight of aluminum hydroxide. •ZT/P21-Fr/gu• ZT / P21-Fr / gu 5.12.1983 ,.«, - 2 -December 5, 1983,. «, - 2 - COPY'COPY ' • BAÖ• BAÖ
DE19833344588 1983-12-09 1983-12-09 Polymer mixture for sheathing cables and wires Expired - Fee Related DE3344588C2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE19833344588 DE3344588C2 (en) 1983-12-09 1983-12-09 Polymer mixture for sheathing cables and wires
GB08429596A GB2151236B (en) 1983-12-09 1984-11-23 Polymer sheathing material for cables and wires
AU35861/84A AU578256B2 (en) 1983-12-09 1984-11-26 Cable insulating compound
NZ21034384A NZ210343A (en) 1983-12-09 1984-11-27 Cable insulating polymeric compositions
EP84114762A EP0148416A3 (en) 1983-12-09 1984-12-04 Polymer composition for sheathing cables and conductors
NO844852A NO844852L (en) 1983-12-09 1984-12-05 INSULATION MATERIALS
FR8418746A FR2556356B1 (en) 1983-12-09 1984-12-07 POLYMER MIXTURE ON ELECTRICAL AND / OR OPTICAL CABLES AND WIRES
BE2/60787A BE903192A (en) 1983-12-09 1985-09-06 POLYMER MIXTURE ON ELECTRICAL AND / OR OPTICAL CABLES AND WIRES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833344588 DE3344588C2 (en) 1983-12-09 1983-12-09 Polymer mixture for sheathing cables and wires

Publications (2)

Publication Number Publication Date
DE3344588A1 true DE3344588A1 (en) 1985-06-20
DE3344588C2 DE3344588C2 (en) 1994-12-15

Family

ID=6216513

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833344588 Expired - Fee Related DE3344588C2 (en) 1983-12-09 1983-12-09 Polymer mixture for sheathing cables and wires

Country Status (8)

Country Link
EP (1) EP0148416A3 (en)
AU (1) AU578256B2 (en)
BE (1) BE903192A (en)
DE (1) DE3344588C2 (en)
FR (1) FR2556356B1 (en)
GB (1) GB2151236B (en)
NO (1) NO844852L (en)
NZ (1) NZ210343A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3921442A1 (en) * 1989-06-30 1991-01-03 Kabelmetal Electro Gmbh Cable casing for filling with fibres etc. - has sleeve with reinforcing filaments and inner tube contg. thermally expanded filling plus thread to draw fibres or conductors through
DE10342728B3 (en) * 2003-09-16 2005-08-18 Raumedic Ag Filling tube, useful for filling medical products, e.g. blood into bags, comprises outer layer of polypropylene and inner layer of silane-crosslinked ethylene copolymer

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8502928D0 (en) * 1985-02-05 1985-03-06 Bicc Plc Cross-linkable compositions
US4732939A (en) * 1986-01-20 1988-03-22 Sumitomo Bakelite Company Limited Flame-retardant olefinic resin compositions
EP0280761B1 (en) * 1987-03-02 1993-03-03 Sumitomo Bakelite Company Limited Flame-retardant olefinic resin composition
DE10248174C1 (en) 2002-10-16 2003-11-13 Nabaltec Gmbh Flame-retardant thermoplastic, thermoset or thermosetting and/or elastomeric polymer composition, for producing coated electrical wire or cable by extrusion, contains aluminum hydroxide with specified properties as flame retardant
CN103497411B (en) * 2013-09-27 2016-04-13 杭州师范大学 A kind of flexible high heat conductive insulating polymer composite and preparation method thereof
US11512192B2 (en) 2017-12-15 2022-11-29 Byk-Chemie Gmbh Thermoplastic composition having improved flame retardant properties

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054424A2 (en) * 1980-12-16 1982-06-23 LINDSAY & WILLIAMS LIMITED Thermoplastic polymer composition, products formed therefrom

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS518355A (en) * 1974-07-11 1976-01-23 Showa Electric Wire & Cable Co KAKYOSEISOSEIBUTSU
US4349605A (en) * 1980-09-09 1982-09-14 National Distillers & Chemical Corp. Flame retardant radiation curable polymeric compositions
IE51762B1 (en) * 1980-09-09 1987-03-18 Nat Distillers Chem Corp Flame retardant ethylene-ester copolymer hydrated filler compositions
JPS58118828A (en) * 1982-01-06 1983-07-15 Showa Electric Wire & Cable Co Ltd Preparation of flame-retardant crosslinked polyolefin molding
CA1221188A (en) * 1982-04-26 1987-04-28 James W. Biggs Flame retardant crosslinked ethylene copolymer electrical insulation
GB2149802B (en) * 1983-11-16 1987-03-18 Standard Telephones Cables Ltd Oil resistant flame retardent ethylene polymer compositions

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054424A2 (en) * 1980-12-16 1982-06-23 LINDSAY & WILLIAMS LIMITED Thermoplastic polymer composition, products formed therefrom

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Derwent-Abstr. 50775A/28 zu JP 53-0 63 453 *
Derwent-Abstr. 83-743816/34 zu JP 58-1 18 828 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3921442A1 (en) * 1989-06-30 1991-01-03 Kabelmetal Electro Gmbh Cable casing for filling with fibres etc. - has sleeve with reinforcing filaments and inner tube contg. thermally expanded filling plus thread to draw fibres or conductors through
DE10342728B3 (en) * 2003-09-16 2005-08-18 Raumedic Ag Filling tube, useful for filling medical products, e.g. blood into bags, comprises outer layer of polypropylene and inner layer of silane-crosslinked ethylene copolymer

Also Published As

Publication number Publication date
BE903192A (en) 1986-03-06
GB2151236A (en) 1985-07-17
EP0148416A2 (en) 1985-07-17
AU578256B2 (en) 1988-10-20
EP0148416A3 (en) 1985-08-21
AU3586184A (en) 1985-06-13
NZ210343A (en) 1988-01-08
FR2556356A1 (en) 1985-06-14
GB8429596D0 (en) 1985-01-03
DE3344588C2 (en) 1994-12-15
NO844852L (en) 1985-06-10
FR2556356B1 (en) 1986-09-19
GB2151236B (en) 1987-06-24

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Legal Events

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8127 New person/name/address of the applicant

Owner name: KABELMETAL ELECTRO GMBH, 3000 HANNOVER, DE

8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee