FR2802541A1 - A fire-resistant high density polyethylene composition for the fabrication of strips used for the preparation knitted or woven fabrics comprises tetrabromopthalimidoethane and antimony oxide - Google Patents

A fire-resistant high density polyethylene composition for the fabrication of strips used for the preparation knitted or woven fabrics comprises tetrabromopthalimidoethane and antimony oxide Download PDF

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Publication number
FR2802541A1
FR2802541A1 FR9916041A FR9916041A FR2802541A1 FR 2802541 A1 FR2802541 A1 FR 2802541A1 FR 9916041 A FR9916041 A FR 9916041A FR 9916041 A FR9916041 A FR 9916041A FR 2802541 A1 FR2802541 A1 FR 2802541A1
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Prior art keywords
density polyethylene
strips
high density
antimony oxide
knitted
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FR9916041A
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French (fr)
Inventor
Arnaud Bouillon
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Bouillon
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    • DTEXTILES; PAPER
    • D01NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K3/2279Oxides; Hydroxides of metals of antimony
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
    • C08K5/00Use of organic ingredients
    • C08K5/16Nitrogen-containing compounds
    • C08K5/34Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3415Five-membered rings
    • C08K5/3417Five-membered rings condensed with carbocyclic rings
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
    • DTEXTILES; PAPER
    • D01NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/07Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group

Abstract

A high-density polyethylene (HDPE) composition for the fabrication of strips used for a knitted or woven fabric comprises 54-60 wt.% HDPE and 40-46 wt.% of a fire retardant containing 30 wt.% LDPE, 50-55 wt.% tetrabromopthalimidoethane and 15-20 wt.% antimony oxide An Independent claim is included for a knit or a woven fabric prepared from strips of the composition.

Description

L'invention se rapporte à une composition de polyéthylène haute densité pour la fabrication de bandelettes utilisées pour la confection d'un tricot . The invention relates to a high-density polyethylene composition for the manufacture of strips used for making a knitted fabric.

Elle se rapporte également au tricot ou tissu obtenu avec les bandelettes. It also relates to knitting or fabric obtained with the strips. Pour la fabrication de certains tricots, celle-ci se fait, non pas à partir de fils c'est à dire un élément longiligne de section circulaire mais de bandelettes. To manufacture some knits, it is, not from son that is an elongate element of circular section but strips.

Pour la fabrication de ces bandelettes, on procède de la manière suivante - on forme, par extrusion, une gaine soufflée à l'aide d'un polyéthylène haute densité spécifique à ce mode de fabrication, - on découpe en bandelettes cette gaine soufflée et, - on étire les bandelettes dans un rapport moyen de un à six mètres. For the manufacture of these strips, the procedure is as follows - forming, by extrusion, a sleeve blasted with a high specific density polyethylene to this manufacturing method, - are cut into strips the blown film and, - stretching the strips in an average ratio of one to six meters.

Cette méthode nécessaire pour conférer aux produits une orientation moléculaire longitudinale nécessaire à une bonne résistance à la traction. This method required to confer to the products a longitudinal molecular orientation necessary for good tensile strength.

Ces bandelettes servent à alimenter des métiers à tricoter, par exemple du type Rachel. These strips are used to feed knitting, for example of Rachel.

Pour permettre tricotage, il faut que les bandelettes soient suffisamment résistantes. To allow knitting requires that the strips are sufficiently resistant.

On utilise généralement des bandelettes qui ont une résistance à la traction avant rupture de l'ordre six cents grammes à sept cents grammes et une capacité d'allongement avant rupture de l'ordre de 30%. strips are generally used with a tensile strength before rupture of about six hundred grams to seven hundred grams and an elongation before break of about 30%.

En outre, le mode de production des bandelettes nécessitant la réalisation d'une gaine soufflée puis une opération de découpe oblige à utiliser un polyéthylène haute densité spécifique à ces opérations et notamment à celle de découpe. In addition, the mode of production strips that require the completion of a blown film and a cutting operation requires using a specific high density polyethylene in these operations, including that of cutting.

Ces tricots sont utilisés dans de nombreux domaines et notamment dans un environnement extérieur, par exemple, comme protection des plantes contre le gel mais dans le cadre d'une utilisation dans certains locaux accessibles aux publics, il est conseillé voire nécessaire de limiter les risques de propagation des incendies et donc une obligation d'utiliser des matériaux dits ininflammables ou ayant des caractéristiques limitant propagation des flammes. These knits are used in many fields, especially in an outdoor environment, such as protecting plants against frost, but in the context of use in certain areas accessible to public, it is advisable or even necessary to limit the risk of spread of fire and thus a requirement to use said non-flammable materials or having characteristics limiting flame propagation.

A ce jour, il est connu de protéger le polyéthylène qui se présente sous la forme d'un flanc, de retarder l'action des flammes en procédant à une enduction des deux faces dudit flanc l'aide d'un produit ignifuge. To date, it is known to protect the polyethylene which is in the form of a sidewall, to delay the action of the flame by performing a coating on both faces of said sidewall using a fire retardant.

Un tel revêtement permet de protéger l'âme en polyéthylène et donc de retarder l'effet des flammes. Such a coating protects the polyethylene core and thus delay the effect of the flames. Le procédé d'enduction permet de ne pas altérer les qualités mécaniques flanc de polyéthylene. The coating method enables not alter the mechanical properties of polyethylene flank.

Dans le d'un tricot, le procédé d'enduction en surface est possible mais très onéreux. In the knitted fabric, the surface coating method is possible but very expensive.

Cela pose donc un problème. This raises a problem.

Lorsque matière constituant le tricot n'est pas du polyéthylène, il est connu (FR-A-2 .656.533) d'imprégner un fil de coton ou un tricot d'une substance ignifuge pour rendre le tricot résistant à l'action des flammes. When material constituting the knit is not made of polyethylene, it is known (FR-A-2 .656.533) impregnating a cotton yarn or a knitted fabric of a flame retardant to make the knitted fabric resistant to the action of flames .

On comprend bien qu'un tel procédé ne fonctionne qu'avec un fil absorbant ne peut donc etre transcrit dans le cadre des bandelettes qui ne sont pas absorbantes. It is well understood that such a method works only with an absorbent yarn can not therefore be transcribed as part of the strips which are not absorbent.

Dans le cas des gaines de câbles électriques (FR-A-2.659.974) formées d'un polyéthylène basse densité, il existe des agents ignifugeants mais un tel agent ignifugeant ajouté à du polyéthylène haute densité devant subir une opération de soufflage et de decoupe ne permet pas d'obtenir des bandelettes utilisables. In the case of sheaths of electric cables (FR-A-2659974) formed of a low density polyethylene, there are fire retardants but such a flame retardant added to high density polyethylene undergoing blowing operation and cutters does not provide usable strips.

L'invention propose de remédier à ce problème. The invention proposes to remedy this problem.

A cet effet, l'invention a pour objet une composition de polyéthylène haute densité pour la fabrication de bandelettes en polyéthylène haute densité pour la confection d'un tricot caractérisé en ce que la composition comprend - 54 à 60% de polyéthylène haute densité, - 40 à 46% d'un agent ignifugeant contenant lui-même, . To this end, the invention relates to a high-density polyethylene composition for the production of high density polyethylene strips for making a knitted fabric characterized in that the composition comprises - 54-60% of high density polyethylene, - 40-46% of a flame retardant containing itself. 30% de polyéthylène basse densité, . 30% low density polyethylene. 50 à 55 % de tetrabromothalimidoéthane .15 à 20 % d'oxyde d'antimoine. 50 to 55% of tetrabromothalimidoéthane .15 to 20% of antimony oxide.

Elle a également pour objet le tricot obtenu. It also relates to the resulting knitting.

L'invention sera bien comprise à l'aide de la description ci-après faite à titre d'exemple non limitatif en regard du dessin ci-annexé qui représente schématiquement le procédé de fabrication des bandelettes. The invention will be better understood using the following description given by way of nonlimiting example with reference to the attached drawing which schematically shows the strip manufacturing process.

En se reportant au dessin, on voit une bandelette 1 en polyéthylène haute densité pour la confection d'un tricot à mailles plus ou moins serrées. Referring to the drawing, there is shown a strip 1 of high density polyethylene for the manufacture of a knitted fabric to more or less fine mesh.

Ces bandelettes sont obtenues par découpage/étirage d'une gaine 2 soufflée. These strips are obtained by cutting / stretching a sheath 2 blown. On utilise à cet effet principalement un polyéthylène 3 haute densité mais spécifique aux différentes opérations précitées, tel que celui connu sous la référence SCOLEFIN PE AG 52 YC de la Société BUNA SOW LEUNA . We mainly for this purpose uses a 3 high density polyethylene but specific to the various aforementioned operations, such as that known under the reference PE SCOLEFIN AG YC 52 of Buna Sow Leuna Company. Ces bandelettes ont une résistance à la traction avant rupture de l'ordre de six cents grammes à sept cents grammes et une capacité d'allongement avant rupture de l'ordre 30%. These strips have a tensile strength before break of about six hundred grams to seven hundred grams and an elongation before break of about 30%.

L'épaisseur de ces bandelette est de vingt cinq microns en moyenne et leur dimension transversale de 0,9 millimètres. The thickness of the strip is twenty five microns and an average transverse dimension of 0.9 millimeters.

Pour conférer à ces bandelettes et au tricot obtenu, une caractéristique de résistance la flamme et pour obtenir en France un classement au feu, dit M1 , la composition à base de polyéthylène haute densité pour la fabrication de bandelettes pour la confection d'un tricot se distingue des compositions antérieures en ce que cette composition comprend - 54 @ 60% de polyéthylène 3 haute densité et - 40 à 46% d'un agent 4 ignifugeant contenant lui-même . To impart to these strips and to the obtained knitted fabric, a flame resistant characteristic and for in France a fire classification, said M1, the high-density polyethylene composition for the production of strips for making a knitted fabric is differs from prior compositions in that this composition comprises - 54% @ 60 3 high density polyethylene and - 40-46% of a 4-containing flame retardant itself. 30% de polyéthylène 5 basse densité . 5 30% low density polyethylene. 50 à 55 % de tetrabromothalimidoethane 6 . 50 to 55% of tetrabromothalimidoethane 6. 15 à 20 % d'oxyde d'antimoine 7. 15 to 20% of antimony oxide 7.

Selon la nature des autres composants, tels que les pigments et ou additifs anti-ultraviolets qui sont ajoutés en suite à cette composition, le pourcentage d'agent ignifugeant sera choisi dans la fourchette ci dessus. Depending on the nature of other components, such as pigments or anti-ultraviolet additives which are added in response to this composition, the percentage of flame retardant is chosen in the range above.

II est bien sur évident que si l'on sort du cadre de cette composition et notamment si l'on réduit la masse d'ignifugeant, la résistance aux flammes sera diminuée et pourra plus répondre au classement au feu M1 . It is of course obvious that if one is beyond the scope of this composition, particularly if we reduce the mass of flame retardant, flame resistance will be decreased and will respond more to M1 fire rating.

Les différents éléments se présentent sous la forme granules qui sont dosées très précisément à 0,1 % près puis extrudées à l'aide d'une vis d'extrusion à un température de l'ordre de deux cent vingt degrés Celsius. The various elements are in the form granules which are dosed very precisely to 0.1% and then extruded using a screw extruder to a temperature of the order of two hundred twenty degrees Celsius.

L'avantage résulte de l'incorporation dans la masse éléments conférant au tricot propriétés de résistance aux flammes. The advantage results from the incorporation into the mass elements conferring knitted flame resistant properties.

Selon les mailles du tricots seront larges ou étroites le tricot pourra avoir différentes fonctions. According to the stitches of knitwear will be wide or narrow knitting may have different functions.

figure unique montre très schématiquement le procédé de fabrication de ces bandelettes qui comprend un poste de mélange suivi d'un poste de soufflage et d'un poste de coupe. single figure shows very schematically the method of manufacture of these strips comprising a mixing station followed by a blow-molding station and a cutting station.

Claims (2)

    <B><U>REVENDICATIONS</U></B> <B> <U> CLAIMS </ U> </ B>
  1. 1. Composition de polyéthylène haute densité pour la fabrication de bandelettes utilisées pour la confection d'un tricot ou tissu caractérisée en ce qu'elle comprend - 54 à 60% de polyéthylène (3) haute densité et - 40 à 46% d'un agent (4) ignifugeant contenant lui-même . 1. High-density polyethylene composition for the manufacture of strips used for making a knitted fabric or fabric characterized in that it comprises - from 54 to 60% polyethylene (3) and high density - 40-46% of a agent (4) containing flame retardant itself. 30% de polyéthylène basse densité (5), . 30% low density polyethylene (5). 50 à 55 % de tetrabromothalimidoethane (6), . 50 to 55% of tetrabromothalimidoethane (6). 15 à 20 % d'oxyde d'antimoine (7). 15 to 20% of antimony oxide (7).
  2. 2. Tricot ou tissu caractérisé en ce qu'il est obtenu à l'aide de bandelettes dont la composition comprend - 54 à 60% de polyéthylène (3) haute densité et - 40 à 46% d'un agent (4) ignifugeant contenant lui-même . 2. Knitting or fabric characterized in that it is obtained by using strips of which the composition comprises - 54-60% of polyethylene (3) high density, and - from 40 to 46% of an agent (4) containing flame retardant himself. 30% de polyéthylène basse densité (5), . 30% low density polyethylene (5). 50 à 55 % de tetrabromothalimidoethane (6), . 50 to 55% of tetrabromothalimidoethane (6). 15 à 20 % d'oxyde d'antimoine (7). 15 to 20% of antimony oxide (7).
FR9916041A 1999-12-20 1999-12-20 A fire-resistant high density polyethylene composition for the fabrication of strips used for the preparation knitted or woven fabrics comprises tetrabromopthalimidoethane and antimony oxide Pending FR2802541A1 (en)

Priority Applications (1)

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FR9916041A FR2802541A1 (en) 1999-12-20 1999-12-20 A fire-resistant high density polyethylene composition for the fabrication of strips used for the preparation knitted or woven fabrics comprises tetrabromopthalimidoethane and antimony oxide

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FR9916041A FR2802541A1 (en) 1999-12-20 1999-12-20 A fire-resistant high density polyethylene composition for the fabrication of strips used for the preparation knitted or woven fabrics comprises tetrabromopthalimidoethane and antimony oxide

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624024A (en) * 1970-02-24 1971-11-30 Eastman Kodak Co Flame retardant poly(tetramethylene terephthalate) molding compositions
US4774044A (en) * 1985-12-12 1988-09-27 Techlon Fibers Corporation Flame retardant polyolefin fiber
US5104714A (en) * 1989-11-30 1992-04-14 Tama Plastic Industry Elastic plastic netting made of oriented strands
US5160788A (en) * 1991-02-11 1992-11-03 E. I. Du Pont De Nemours And Company Laminates with adhesive layers of fire retardant, melt stable ethylene/carboxylic acid copolymer compositions
US5358991A (en) * 1993-07-15 1994-10-25 Belden Wire & Cable Company Flame retarded polyethylene wire insulations

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624024A (en) * 1970-02-24 1971-11-30 Eastman Kodak Co Flame retardant poly(tetramethylene terephthalate) molding compositions
US4774044A (en) * 1985-12-12 1988-09-27 Techlon Fibers Corporation Flame retardant polyolefin fiber
US5104714A (en) * 1989-11-30 1992-04-14 Tama Plastic Industry Elastic plastic netting made of oriented strands
US5160788A (en) * 1991-02-11 1992-11-03 E. I. Du Pont De Nemours And Company Laminates with adhesive layers of fire retardant, melt stable ethylene/carboxylic acid copolymer compositions
US5358991A (en) * 1993-07-15 1994-10-25 Belden Wire & Cable Company Flame retarded polyethylene wire insulations

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