FR2684793A1 - Material, especially for an electrical cable, based on a polar matrix of the ethylene copolymer type having ester groups - Google Patents

Material, especially for an electrical cable, based on a polar matrix of the ethylene copolymer type having ester groups Download PDF

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FR2684793A1
FR2684793A1 FR9115309A FR9115309A FR2684793A1 FR 2684793 A1 FR2684793 A1 FR 2684793A1 FR 9115309 A FR9115309 A FR 9115309A FR 9115309 A FR9115309 A FR 9115309A FR 2684793 A1 FR2684793 A1 FR 2684793A1
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parts
mixture
material according
ethylene
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FR2684793B1 (en
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Prigent Madeleine
Chaillie Alain
Petrignani Felix
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Nexans France SAS
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Alcatel Cable SA
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    • 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
    • H01B3/441—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 from alkenes
    • 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 other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
    • 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
    • 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
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • 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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Insulating Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Material, especially for electrical cables, based on a polar matrix of the ethylene copolymer type having ester groups, characterised in that it furthermore contains: - a non-polar matrix chosen from polypropylene and polyethylenes, in a proportion lying between 5 and 40 parts of the mixture of the two aforementioned matrices; - a phenolic resin comprising terminal methylol groups in an amount of 1 to 20 parts per 100 parts of the said mixture.

Description

Matériau, notamment pour câble électrique, à base d'une matrice polaire de type copolymère d'éthylène comportant des oroutements esters
La présente invention concerne un matériau isolant, notamment pour câble électrique, à base d'une matrice polaire de type copolymère d'éthylène comportant des groupements esters.Material, in particular for electric cable, based on a polar matrix of the ethylene copolymer type comprising ester droplets
The present invention relates to an insulating material, in particular for an electric cable, based on a polar matrix of the ethylene copolymer type comprising ester groups.

I1 s'agit en particulier mais non exclusivement d'un matériau à base de copolymère d'éthylène et d'acétate de vinyle ou de copolymère d'éthylène et d'ester acrylique. This is particularly, but not exclusively, a copolymer-based material of ethylene and vinyl acetate or copolymer of ethylene and acrylic ester.

Ces copolymères sont assez fréquemment utilisés en raison de leur grande capacité d'absorption de charges minérales. Mais, quel que soit leur taux de comonomère, ils présentent un point de fusion bas, le plus souvent inférieur à 1000 C. Si l'on veut les utiliser comme isolant ou gaine de câble, il est nécessaire de les réticuler pour améliorer leurs propriétés thermomécaniques. Cette réticulation, amorcée soit par des peroxydes organiques, soit par irradiation, se révèle être une opération contraignante que l'on souhaite éviter. La réticulation par greffage d'alkoxysilane pose également des problèmes quand les charges minérales contiennent de l'eau. These copolymers are quite frequently used because of their high capacity for absorbing mineral fillers. However, regardless of their comonomer level, they have a low melting point, most often less than 1000 C. If they are to be used as insulation or cable sheath, it is necessary to crosslink them to improve their properties. thermomechanical. This crosslinking, initiated either by organic peroxides or by irradiation, proves to be a binding operation that one wishes to avoid. Crosslinking by grafting of alkoxysilane also causes problems when the mineral fillers contain water.

On est donc amené à ajouter au copolymère de base un deuxième polymère présentant une meilleure tenue thermique; c'est le cas du polypropylène (matrice apolaire) en raison de son point de fusion élevé (de l'ordre de 1650C). Mais on constate que ces deux composés sont totalement incompatibles, ne présentent aucune cohésion entre eux, et qu'il est impossible ainsi d'obtenir un matériau présentant des propriétés mécaniques et de vieillissement thermique correctes. It is therefore necessary to add to the base copolymer a second polymer having a better thermal resistance; this is the case of polypropylene (apolar matrix) because of its high melting point (of the order of 1650C). But it is found that these two compounds are completely incompatible, have no cohesion between them, and it is thus impossible to obtain a material with good mechanical properties and thermal aging.

La présente invention a pour but de réaliser un matériau à base des copolymères précités, dont les propriétés mécaniques et les propriétés de vieillissement thermique soient telles qu'il ne soit pas nécessaire de le réticuler. The object of the present invention is to provide a material based on the abovementioned copolymers whose mechanical properties and thermal aging properties are such that it is not necessary to crosslink it.

La présente invention a pour objet un matériau, notamment pour câble électrique, à base d'une matrice polaire de type copolymère d'éthylène comportant des groupements esters, caractérisé par le fait qu'il contient en outre: - une matrice apolaire choisie parmi le polypropylène et les polyéthylènes, dans une proportion comprise entre 5 et 40 parties du mélange des deux matrices précitées, - une résine phénolique comprenant des groupements méthylol terminaux à raison de 1 à 20 parties pour 100 parties dudit mélange. The subject of the present invention is a material, in particular for electrical cable, based on a polar matrix of the ethylene copolymer type comprising ester groups, characterized in that it additionally contains: an apolar matrix chosen from the group consisting of polypropylene and polyethylenes, in a proportion of between 5 and 40 parts of the mixture of the two aforementioned matrices; a phenolic resin comprising terminal methylol groups in a proportion of 1 to 20 parts per 100 parts of said mixture.

Ledit matériau isolant est capable d'incorporer au moins une charge minérale dans une proportion importante. Said insulating material is capable of incorporating at least one mineral filler in a significant proportion.

Cette charge minérale peut être choisie parmi la craie, le kaolin, la silice et les charges ignifugeantes, par exemple telles que Mg(OH)2 et Al(OH)3.  This mineral filler can be chosen from chalk, kaolin, silica and flame retardant fillers, for example such as Mg (OH) 2 and Al (OH) 3.

Toute combinaison de charges peut être envisagée. Any combination of charges may be considered.

Dans le cas de Al(OH)3, la proportion est avantageusement comprise entre 100 et 200 parties dudit mélange. In the case of Al (OH) 3, the proportion is advantageously between 100 and 200 parts of said mixture.

Ledit matériau peut comporter également des agents de mise en oeuvre. Said material may also include processing agents.

D'autres caractéristiques et avantages de la présente invention apparaîtront au cours de la description suivante de modes de réalisation donnés à titre illustratif mais nullement limitatif. Dans le dessin annexé - les figures 1 et 2 sont des photos au microscope électronique à balayage avec des grandissements respectifs x 1000 et x 4000 pour un mélange n'appartenant pas à l'invention, - les figures 3 et 4 sont des photos analogues pour un matériau selon 1 'invention.  Other features and advantages of the present invention will become apparent from the following description of embodiments given for illustrative but not limiting. In the accompanying drawing - Figures 1 and 2 are scanning electron micrographs with respective magnifications x 1000 and x 4000 for a mixture not belonging to the invention - Figures 3 and 4 are analogous photos for a material according to the invention.

On réalise tout d'abord un mélange contenant: - 80 parties de copolymère d'éthylène et d'acétate de vinyle (noté EVA) - 20 parties de polypropylène (noté PP). First of all, a mixture containing: - 80 parts of ethylene and vinyl acetate copolymer (denoted EVA) - 20 parts of polypropylene (denoted PP).

L'étude morphologique du matériau A obtenu, réalisée au microscope électronique à balayage, montre que le polypropylène est dispersé sous forme de billes dans la matrice continue formée par le copolymère de base (voir figures 1 et 2). The morphological study of the obtained material A, carried out under a scanning electron microscope, shows that the polypropylene is dispersed in the form of beads in the continuous matrix formed by the base copolymer (see FIGS. 1 and 2).

Les deux composés du mélange ne présentent aucune cohésion, ce qui est confirmé par ailleurs lors de l'étude de leurs propriétés mécaniques.The two compounds of the mixture exhibit no cohesion, which is further confirmed during the study of their mechanical properties.

Selon l'invention on ajoute au mélange précédent une faible quantité d'une résine phénolique comportant des groupements méthylol terminaux, par exemple la résine phénolique 1045 de la société Schenectady. According to the invention is added to the above mixture a small amount of a phenolic resin having terminal methylol groups, for example phenolic resin 1045 Schenectady society.

Pour cela on réalise ledit mélange PP/EVA vers 1700C et on ajoute ensuite la résine.For this, said PP / EVA mixture is produced at about 1700 ° C. and the resin is then added.

On observe que l'hétérogénéité du mélange diminue progressivement et que les billes de polypropylène précédemment observées disparaissent totalement (voir figures 3 et 4). It is observed that the heterogeneity of the mixture gradually decreases and that the previously observed polypropylene beads completely disappear (see FIGS. 3 and 4).

Un mélange selon l'invention est capable d'accepter de grandes quantités de charges sans dégradation de ses propriétés mécaniques. A mixture according to the invention is capable of accepting large quantities of charges without degradation of its mechanical properties.

Le tableau I ci-dessous indique pour le matériau A précité et pour trois exemples de matériaux selon l'invention où la charge est Al(OH)3: - l'indice d'oxygène limite (IOL), caractéristique de l'ignifugation selon la norme CEI.332-3 annexe 1 - la résistance à la rupture en Mégapascals Rr - l'allongement à la rupture en % (Ar)
Tableau I

Figure img00030001
Table I below indicates, for the abovementioned material A and for three examples of materials according to the invention where the filler is Al (OH) 3: the limiting oxygen index (IOL), characteristic of flame retardancy according to the standard IEC.332-3 annex 1 - the breaking strength in Megapascals Rr - the elongation at break in% (Ar)
Table I
Figure img00030001

<tb> <SEP> A <SEP> Ex:1 <SEP> Ex:2 <SEP> ! <SEP> Ex::3
<tb> PP <SEP> (parties) <SEP> 20 <SEP> 20 <SEP> 20 <SEP> 20
<tb> EVA <SEP> (parties) <SEP> 80 <SEP> 80 <SEP> 80 <SEP> 80
<tb> Al(OH)3 <SEP> (parties) <SEP> 140 <SEP> 140 <SEP> 150 <SEP> 160
<tb> Résine <SEP> phénolique <SEP> X <SEP> 10 <SEP> 10 <SEP> 10
<tb> <SEP> 1045
<tb> <SEP> IOL <SEP> 31,5 <SEP> 31 <SEP> 32,5 <SEP> 34
<tb> <SEP> Rr <SEP> 6,8 <SEP> 8,2 <SEP> 9 <SEP> 9,9
<tb> <SEP> Ar <SEP> 40 <SEP> 323 <SEP> 245 <SEP> 230
<tb>
On soumet le matériau A précité ainsi qu'un échantillon du matériau du ler exemple à un vieillissement accéléré à 100C pendant 10 jours, et un échantillon analogue à un vieillissement accéléré à 1200C pendant 7 jours.<tb><SEP> A <SEP> Ex: 1 <SEP> Ex: 2 <SEP>! <SEP> Ex :: 3
<tb> PP <SEP> (parts) <SEP> 20 <SEP> 20 <SEP> 20 <SEP> 20
<tb> EVA <SEP> (parts) <SEP> 80 <SEP> 80 <SEP> 80 <SEP> 80
<tb> Al (OH) 3 <SEP> (Parts) <SEP> 140 <SEP> 140 <SEP> 150 <SEP> 160
<tb> Phenolic <SEP> Resin <SEP> X <SEP> 10 <SEP> 10 <SEP> 10
<tb><SEP> 1045
<tb><SEP> IOL <SEP> 31.5 <SEP> 31 <SEP> 32.5 <SEP> 34
<tb><SEP> Rr <SEP> 6.8 <SEP> 8.2 <SEP> 9 <SEP> 9.9
<tb><SEP> Ar <SEP> 40 <SEP> 323 <SEP> 245 <SEP> 230
<Tb>
The aforementioned material A and a sample of the material of the first example are subjected to accelerated aging at 100 ° C. for 10 days, and a sample similar to accelerated aging at 1200 ° C. for 7 days.

Le tableau II donne les caractéristiques mécaniques obtenues après ces traitements:
Tableau II

Figure img00040001
Table II gives the mechanical characteristics obtained after these treatments:
Table II
Figure img00040001

<SEP> 100 C;10 <SEP> jours <SEP> 120 C;7jours <SEP>
<tb> <SEP> A
<tb> <SEP> A <SEP> Ex:l <SEP> A <SEP> Ex:l
<tb> Rr <SEP> < 1 <SEP> 8,2 <SEP> < 1 <SEP> 8,4 <SEP>
<tb> <SEP> 1
<tb> Rr <SEP> < 5 <SEP> 301 <SEP> G <SEP> 263
<tb>
Le tableau II montre que les propriétés mécaniques initiales du matériau selon l'invention sont peu modifiées après ces vieillissements accélérés. En outre elles sont très améliorées vis-à-vis de celles du matériau A et elles sont proches de celles des matériaux réticulés.<SEP> 100 C; 10 <SEP> days <SEP> 120 C; 7 days <SEP>
<tb><SEP> A
<tb><SEP> A <SEP> Ex: l <SEP> A <SEP> Ex: l
<tb> Rr <SEP><1<SEP> 8.2 <SEP><1<SEP> 8.4 <SEP>
<tb><SEP> 1
<tb> Rr <SEP><5<SEP> 301 <SEP> G <SEP> 263
<Tb>
Table II shows that the initial mechanical properties of the material according to the invention are little modified after these accelerated aging. In addition, they are very much improved vis-à-vis those of material A and are close to those of crosslinked materials.

On réalise ensuite un mélange contenant: - 80 parties de copolymère d'éthylène et d'acétate de vinyle (noté EVA). A mixture is then produced containing: 80 parts of copolymer of ethylene and of vinyl acetate (denoted EVA).

- 10 parties de styrène éthylène butadiène styrène (noté SEBS).10 parts of styrene ethylene butadiene styrene (denoted SEBS).

- 10 parties de polyéthylène moyenne densité greffé silane (noté PE greffé).- 10 parts of silane-grafted medium-density polyethylene (grafted PE).

- 150 parties de A1(OH)3.150 parts of A1 (OH) 3.

On obtient un matériau B non conforme à l'invention. A material B not according to the invention is obtained.

Selon l'invention on ajoute au mélange qui vient d'être défini une faible quantité de la résine phénolique des exemples 1 à 3 et on obtient le matériau référencé Ex: 4 dans le tableau III. According to the invention, a small amount of the phenolic resin of Examples 1 to 3 is added to the mixture which has just been defined, and the material referenced Ex: 4 is obtained in Table III.

Dans ce tableau on a comparé différentes caractéristiques thermomécaniques du matériau B et du matériau de l'exemple 4: - l'indice d'oxygène limite (IOL) précédemment défini, - la viscosité MOONEY - (notée ML (1+4), - la tenue au déchirement en N/mm, - le densité de fumée maximum Dm (norme UTE 20 452 ou EHD 605 du CENELEC) dans le cas d'une combustion sans flammes ou dans le cas d'une combustion avec flammes, - le densité de fumée VOF4 pendant les quatre premières minutes de combustion, sans flammes ou avec flammes (norme UTE 20 452 ou EHD 605 du CENELEC'-
Tableau III

Figure img00050001
In this table, different thermomechanical characteristics of material B and the material of example 4 were compared: the limit oxygen index (IOL) previously defined, the MOONEY viscosity (denoted ML (1 + 4), the tear strength in N / mm, - the maximum smoke density Dm (UTE standard 20 452 or EHD 605 of CENELEC) in the case of a flameless combustion or in the case of combustion with flames, - the density VOF4 smoke during the first four minutes of combustion, without flames or flames (UTE 20 452 or EHD 605 of CENELEC'-
Table III
Figure img00050001

<tb> <SEP> B <SEP> B <SEP> Ex:<SEP> 4
<tb> <SEP> EVA <SEP> (parties) <SEP> t <SEP> 80 <SEP> 80
<tb> <SEP> SEBS <SEP> (parties) <SEP> 10 <SEP> 10
<tb> <SEP> 1 <SEP> I
<tb> <SEP> I
<tb> Al(OH)3 <SEP> (parties <SEP> 150 <SEP> | <SEP> 150
<tb> Résine <SEP> phénoliqu <SEP> \ <SEP> / <SEP> | <SEP> 10
<tb> <SEP> 1045
<tb> <SEP> IOL <SEP> 1l <SEP> 33 <SEP> 35
<tb> <SEP> ML <SEP> (1+4) <SEP> I <SEP> 46 <SEP> 25
<tb> <SEP> Tenue <SEP> au <SEP> 1 <SEP> 8 <SEP> i <SEP> 16
<tb> <SEP> Déchirement <SEP> i
<tb> <SEP> Sans <SEP> Avec <SEP> Sans <SEP> Avec
<tb> <SEP> flammes <SEP> flammes <SEP> ì <SEP> flammes <SEP> flammes
<tb> <SEP> Dm
<tb> <SEP> VOF4 <SEP> 50 <SEP> 129 <SEP> 1 <SEP> 14 <SEP> , <SEP> 36
<tb> <SEP> i <SEP> .l <SEP> I <SEP> ,
<tb>
Un matériau selon l'invention peut être extrudé sans problèmes particuliers.<tb><SEP> B <SEP> B <SEP> Ex: <SEP> 4
<tb><SEP> EVA <SEP> (parts) <SEP> t <SEP> 80 <SEP> 80
<tb><SEP> SEBS <SEP> (parts) <SEP> 10 <SEP> 10
<tb><SEP> 1 <SEP> I
<tb><SEP> I
<tb> Al (OH) 3 <SEP> (parts <SEP> 150 <SEP> | <SEP> 150
<tb> Phenolic <SEP> Resin <SEP> \ <SEP> / <SEP> | <SEP> 10
<tb><SEP> 1045
<tb><SEP> IOL <SEP> 1l <SEP> 33 <SEP> 35
<tb><SEP> ML <SEP> (1 + 4) <SEP> I <SEP> 46 <SEP> 25
<tb><SEP> Holding <SEP> at <SEP> 1 <SEP> 8 <SEP> i <SEP> 16
<tb><SEP> Tear <SEP> i
<tb><SEP> Without <SEP> With <SEP> Without <SEP> With
<tb><SEP> flames <SEP> flames <SEP> ì <SEP> flames <SEP> flames
<tb><SEP> Dm
<tb><SEP> VOF4 <SEP> 50 <SEP> 129 <SEP> 1 <SEP> 14 <SEP>, <SEP> 36
<tb><SEP> i <SEP> .l <SEP> I <SEP>,
<Tb>
A material according to the invention can be extruded without particular problems.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation qui viennent d'être décrits. Of course, the invention is not limited to the embodiments that have just been described.

En particulier le copolymère de base peut être un copolymère d'éthylène et d'ester acrylique greffé ou non. On peut mettre en oeuvre les différents polyétylènes.  In particular, the base copolymer may be a copolymer of ethylene and acrylic ester grafted or not. The various polyethylenes can be used.

Claims (6)

REVENDICATIONS 1/ Matériau, notamment pour câble électrique, à base d'une matrice polaire de type copolymère d'éthylène comportant des groupements esters, caractérisé par le fait qu'il contient en outre: - une matrice apolaire choisie parmi le polypropylène et les poyéthylènes, dans une proportion comprise entre 5 et 40 parties du mélange des deux matrices précitées, - une résine phénolique comprenant des groupements méthylol terminaux à raison de 1 à 20 parties pour 100 parties dudit mélange.1 / material, in particular for electric cable, based on a polar matrix of ethylene copolymer type comprising ester groups, characterized in that it further contains: an apolar matrix chosen from polypropylene and polyethylene, in a proportion of between 5 and 40 parts of the mixture of the two abovementioned matrices; a phenolic resin comprising terminal methylol groups in a proportion of 1 to 20 parts per 100 parts of said mixture. 2/ Matériau selon la revendication 1, caractérisé par le fait qu'il comporte en outre au moins une charge minérale.2 / material according to claim 1, characterized in that it further comprises at least one mineral filler. 3/ Matériau selon la revendication 2, caractérisé par le fait que ladite charge minérale est choisie parmi la craie, le kaolin, la silice et les charges ignifugeantes.3 / material according to claim 2, characterized in that said inorganic filler is selected from chalk, kaolin, silica and fireproof fillers. 4/ Matériau selon la revendication 3, caractérisé par le fait que ladite charge ignifugeante est constituée par A1(OH)3, dans une proportion comprise entre 100 et 200 parties dudit mélange.4 / material according to claim 3, characterized in that said flame retardant filler is constituted by A1 (OH) 3 in a proportion of between 100 and 200 parts of said mixture. 5/ Matériau selon l'une des revendications précédentes, caractérisé par le fait que ledit matériau contient en outre des agents de mise en oeuvre.5 / material according to one of the preceding claims, characterized in that said material further contains processing agents. 6/ Matériau selon l'une des revendications précédentes, caractérisé par le fait que ladite matrice polaire est un copolymère d'éthylène et d'acétate de vinyle ou un copolymère d'éthylène et d'ester acrylique. 6 / material according to one of the preceding claims, characterized in that said polar matrix is a copolymer of ethylene and vinyl acetate or a copolymer of ethylene and acrylic ester.
FR9115309A 1991-12-10 1991-12-10 MATERIAL, ESPECIALLY FOR ELECTRICAL CABLE, BASED ON A POLAR MATRIX OF THE ETHYLENE COPOLYMER TYPE COMPRISING ESTER GROUPS. Expired - Fee Related FR2684793B1 (en)

Priority Applications (2)

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FR9115309A FR2684793B1 (en) 1991-12-10 1991-12-10 MATERIAL, ESPECIALLY FOR ELECTRICAL CABLE, BASED ON A POLAR MATRIX OF THE ETHYLENE COPOLYMER TYPE COMPRISING ESTER GROUPS.
CA 2084909 CA2084909A1 (en) 1991-12-10 1992-12-09 Material, particularly used in electric cables, made from a polar matrix of an ethylene copolymer with ester groups

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9115309A FR2684793B1 (en) 1991-12-10 1991-12-10 MATERIAL, ESPECIALLY FOR ELECTRICAL CABLE, BASED ON A POLAR MATRIX OF THE ETHYLENE COPOLYMER TYPE COMPRISING ESTER GROUPS.

Publications (2)

Publication Number Publication Date
FR2684793A1 true FR2684793A1 (en) 1993-06-11
FR2684793B1 FR2684793B1 (en) 1994-01-21

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FR9115309A Expired - Fee Related FR2684793B1 (en) 1991-12-10 1991-12-10 MATERIAL, ESPECIALLY FOR ELECTRICAL CABLE, BASED ON A POLAR MATRIX OF THE ETHYLENE COPOLYMER TYPE COMPRISING ESTER GROUPS.

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CA (1) CA2084909A1 (en)
FR (1) FR2684793B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1956611A1 (en) 2007-02-09 2008-08-13 Nexans Power and/or telecommunications cable with improved fireproofing properties
CN110157092A (en) * 2018-03-30 2019-08-23 张阳 Environmentally protective composite modified plastics of one kind and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2132321A1 (en) * 1971-04-02 1972-11-17 Dart Ind Inc
FR2300109A1 (en) * 1975-02-05 1976-09-03 Gen Electric FIRE-RESISTANT COMPOSITION BASED ON CROSS-LINKED POLYOLEFIN
FR2358437A1 (en) * 1976-07-14 1978-02-10 Dart Ind Inc STABILIZED POLYOLEFIN RESIN
EP0204453A1 (en) * 1985-05-21 1986-12-10 BP Chemicals Limited Thermoplastic elastomer compositions
DE3716639A1 (en) * 1987-05-18 1988-12-08 Siemens Ag Polyolefin compounds for cable and wire insulations

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2132321A1 (en) * 1971-04-02 1972-11-17 Dart Ind Inc
FR2300109A1 (en) * 1975-02-05 1976-09-03 Gen Electric FIRE-RESISTANT COMPOSITION BASED ON CROSS-LINKED POLYOLEFIN
FR2358437A1 (en) * 1976-07-14 1978-02-10 Dart Ind Inc STABILIZED POLYOLEFIN RESIN
EP0204453A1 (en) * 1985-05-21 1986-12-10 BP Chemicals Limited Thermoplastic elastomer compositions
DE3716639A1 (en) * 1987-05-18 1988-12-08 Siemens Ag Polyolefin compounds for cable and wire insulations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1956611A1 (en) 2007-02-09 2008-08-13 Nexans Power and/or telecommunications cable with improved fireproofing properties
CN110157092A (en) * 2018-03-30 2019-08-23 张阳 Environmentally protective composite modified plastics of one kind and preparation method thereof

Also Published As

Publication number Publication date
CA2084909A1 (en) 1993-06-11
FR2684793B1 (en) 1994-01-21

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