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EP1397473B1 - Paraffin compositions and use thereof in glass casings or other containers - Google Patents

Paraffin compositions and use thereof in glass casings or other containers Download PDF

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Publication number
EP1397473B1
EP1397473B1 EP02727679A EP02727679A EP1397473B1 EP 1397473 B1 EP1397473 B1 EP 1397473B1 EP 02727679 A EP02727679 A EP 02727679A EP 02727679 A EP02727679 A EP 02727679A EP 1397473 B1 EP1397473 B1 EP 1397473B1
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EP
European Patent Office
Prior art keywords
paraffin
composition
less
candle
combustion
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EP02727679A
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German (de)
French (fr)
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EP1397473A1 (en
Inventor
Brigitte Lecouturier
Didier Andre
Yannick Jolivet
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TotalEnergies Marketing Services SA
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TotalFinaElf France SA
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
    • C11C5/00—Candles
    • C11C5/008—Candles characterised by their form; Composite candles, e.g. candles containing zones of different composition, inclusions, or the like
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
    • C11C5/00—Candles
    • C11C5/002—Ingredients

Definitions

  • the present invention relates to a new composition of paraffin and its use as a main constituent for candles with improved burning time, arranged in particular in a glass enclosure or other containers.
  • paraffin composition which constitutes, possibly supplemented with different additives, must have a relatively slow burning rate, i.e. a slower consumption of hydrocarbon products.
  • this combustion must take place in a perfectly regular manner and homogeneous, so that the upper surface of the candle remains substantially flat and that it avoids presenting, at its upper part concave surface, sometimes with an accentuated hollow at the level of the wick candle. In the latter case, in fact, the amount of air becoming insufficient to supply the flame, combustion results incomplete fuel mass, up to extinction of flame.
  • paraffin composition suitable for a use as a candle in a verrine is an operation complex because many parameters have to be taken into account consideration, such as the quality and speed of combustion, this the latter being directly linked to the melting point of the paraffin.
  • EP-A-0 860 472 describes a paraffin composition for a candle, the paraffin having a melting point between 45 ° C and 65 ° C.
  • the objective sought is, in fact, to obtain complete combustion, but the slowest possible of the combustible mass, including the long of the glass wall, with an illuminating and smokeless flame, and this despite the low combustion speed sought.
  • a candle composition which burns in a regular manner by producing a luminous flame, of a satisfactory height, and without smoke, which is not likely to go out at following an insufficient air supply.
  • the invention also aims to provide such a paraffin composition, which, when used in a verrine or container large dimensions, has a burning time largely higher than that of the compositions of the prior art.
  • the invention finally aims to provide a composition of this type, able to burn over long periods without risk of extinction and without smoke production.
  • methyl ester of at least one fatty acid it is possible to advantageously use a mixture of rapeseed methyl esters.
  • the copolymer used of the monoolefin-vinyl ester type is advantageously an ethylene vinyl acetate copolymer or for short E.V.A ..
  • the additives used may be present in amounts generally less than 10% and preferably less than 5% in weight of the paraffin composition and include a colorant, a perfume, insecticide, agent for improving the surface finish of composition or others.
  • the complement to 100% of the composition is carried out with a paraffin of petroleum or other origin, with a low melting point below 65 ° C, and preferably less than 58 ° C, measured according to standard NFT 60-114.
  • the total burning time of such a composition based on paraffin, equipped with an appropriate wick, in a verrine or a other cylindrical container of large diameter and great height can reach or even exceed 12 days without incident.
  • the invention also relates to the use of such a paraffin composition in a verrine or other container.
  • Characteristics of paraffin with low melting point are collated in Table 1 Characteristics of paraffin with low melting point. Characteristics standards Values Fusion point NFT 60-114 50.1 ° C Needle penetration at 25 ° C NFT 60-123 16 x 1/10 mm Luchaire flash point NFT 60-103 204 ° C Oil content NFT 60-120 ⁇ 0.5% by mass
  • the RADIA® 7961 used is a mixture of rapeseed methyl esters, the characteristics of which are given in Table 2.
  • Rapeseed methyl esters Characteristics Methods Values Acid number AOCS Cd 3a-63 ⁇ 1 mg KOH / g Iodine value 105 to 120 / g / I 2 / 100g Water content AOCS Ca 2a-45 ⁇ 0.02% Free glycerol content AOCS Ca 14-65 ⁇ 0.03% Total glycerol content AOCS Ca 14-65 ⁇ 0.25% Appearance at 20 ° C Pale yellow oily liquid Pour point -10 ° C Cloud point 8 ° C Specific mass at 25 ° C 875 kg / m 3 Specific mass at 100 ° C 825 kg / m 3 Viscosity at 40 ° C 4.2mm 2 / s Flash point 180 ° C
  • OKERIM® 5415H is a mixture of EVA copolymers, usually used as a modifier of the crystalline properties of hydrocarbon paraffins (see Table 3) Blend of EVA copolymers Characteristics standards Values Freezing point ASTM D938 59-65 ° C Penetration at 25 ° C ASTM D1321 12-18 dmm Penetration at 43.3 ° C ASTM D 1445 66-76 mm 2 / s Color Saybolt ASTM D 156 ⁇ 26
  • the glass thus produced has a total burning time at least 12 days.
  • the combustion of the paraffin composition is complete, including included along the glass wall, the heat of the flame being sufficient to melt the composition along its entire surface higher.
  • the resulting flame is bright and smoke-free and it lights up satisfactorily, despite the low rate of combustion of the composition.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Fats And Perfumes (AREA)
  • Cosmetics (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention concerns a composition comprising: about 5 to 25 wt. % of methyl ester of at least a fatty acid, a vinyl monoolefin-ester copolymer, whereof the weight content in the paraffin composition is less than 10 % and, preferably, less than 7.5 %; a complement to 100 wt. % of the composition, consisting at least of a paraffin having a melting point less than 65 DEG C and, preferably, less than 58 DEG C and, optionally, the usual additives used in such compositions.

Description

La présente invention concerne une nouvelle composition de paraffine et son utilisation comme constituant principal pour des bougies à durée de combustion améliorée, disposées notamment dans une enceinte en verre ou autres contenants.The present invention relates to a new composition of paraffin and its use as a main constituent for candles with improved burning time, arranged in particular in a glass enclosure or other containers.

On sait que la durée de combustion d'une composition de paraffine, par exemple une bougie, est un critère commercial important et qu'une demande est de plus en plus souvent exprimée, aussi bien pour une utilisation dans des édifices à caractère religieux que pour l'éclairage chez des particuliers, de disposer sur le marché de bougies présentant à la fois une faible vitesse de combustion, une combustion complète, harmonieuse et régulière, ainsi qu'une flamme éclairante et sans fumée.It is known that the duration of combustion of a composition of paraffin, for example a candle, is an important commercial criterion and that a request is more and more often expressed, as well for use in religious buildings only for lighting in private homes, to have candles on the market having both a low combustion rate, a combustion complete, harmonious and regular, as well as an illuminating flame and smokeless.

On sait aussi que, pour augmenter la durée de combustion d'une bougie, plusieurs solutions ont été envisagées, que ce soit par l'ajout d'accessoires, par exemple métalliques, à incorporer à la bougie, ou par des formulations spécifiques de la masse combustible. C'est à ce dernier aspect, qui tend à proposer une composition de paraffine particulière visant à améliorer la durée ainsi que la qualité de combustion, que s'intéresse la présente invention.We also know that to increase the burning time of a candle, several solutions have been considered, whether by adding accessories, for example metallic, to be incorporated into the candle, or by specific formulations of the combustible mass. This is last aspect, which tends to propose a paraffin composition aiming to improve the duration as well as the quality of combustion, which is concerned with the present invention.

Pour que des bougies, ou tout autre article utilisant de la paraffine destinée à une combustion, puissent brûler pendant une longue période, il est connu que la composition de paraffine qui les constitue, éventuellement additionnée de différents additifs, doit avoir une vitesse de combustion relativement lente, c'est-à-dire une consommation ralentie en produits hydrocarbonés. De plus, cette combustion doit s'opérer d'une façon parfaitement régulière et homogène, afin que la surface supérieure de la bougie reste sensiblement plane et qu'elle évite de présenter, à sa partie haute, une surface concave, avec parfois un creux accentué au niveau de la mèche de la bougie. Dans ce dernier cas, en effet, la quantité d'air devenant insuffisante pour alimenter la flamme, il en résulte une combustion incomplète de la masse combustible, pouvant aller jusqu'à l'extinction de la flamme.For candles, or any other item using paraffin intended for combustion, can burn during a long time it is known that the paraffin composition which constitutes, possibly supplemented with different additives, must have a relatively slow burning rate, i.e. a slower consumption of hydrocarbon products. In addition, this combustion must take place in a perfectly regular manner and homogeneous, so that the upper surface of the candle remains substantially flat and that it avoids presenting, at its upper part concave surface, sometimes with an accentuated hollow at the level of the wick candle. In the latter case, in fact, the amount of air becoming insufficient to supply the flame, combustion results incomplete fuel mass, up to extinction of flame.

On sait également que, dans la profession, l'on appelle couramment verrine des enceintes en verre, généralement transparent, ayant pour la plupart une forme cylindrique, mais dont la section transversale peut prendre une forme quelconque. A l'intérieur de ces verrines peuvent être disposées différentes matières et, notamment, une composition de paraffine, seule ou en mélange, qui, associée à une ou plusieurs mèches, est utilisée comme bougie éclairante. C'est à ce type d'application, qui n'a pas un caractère limitatif, que l'on se référera et que l'on désignera globalement sous l'appellation « verrine » dans la suite de la présente description.We also know that, in the profession, we call commonly used in glass enclosures, generally transparent, most of which are cylindrical in shape, but whose cross-section transverse can take any shape. Inside these verrines can be arranged in different materials and, in particular, a paraffin composition, alone or as a mixture, which, associated with a or several wicks, is used as a lighting candle. This is type of application, which is not limiting, which will refer and which will be designated globally under the name "verrine" in the rest of this description.

Le choix d'une composition de paraffine appropriée à une utilisation comme bougie éclairante dans une verrine est une opération complexe, car de nombreux paramètres doivent être pris en considération, tels que la qualité et la vitesse de combustion, cette dernière étant directement liée au point de fusion de la paraffine. Par exemple, EP-A-0 860 472 décrit une composition de paraffine pour une bougie, la paraffine ayant un point de fusion entre 45°C et 65°C. L'objectif recherché est, en effet, d'obtenir une combustion complète, mais la plus lente possible de la masse combustible, y compris le long de la paroi du verre, avec une flamme éclairante et sans fumée, et ceci malgré la faible vitesse de combustion recherchée.The choice of a paraffin composition suitable for a use as a candle in a verrine is an operation complex because many parameters have to be taken into account consideration, such as the quality and speed of combustion, this the latter being directly linked to the melting point of the paraffin. For example, EP-A-0 860 472 describes a paraffin composition for a candle, the paraffin having a melting point between 45 ° C and 65 ° C. The objective sought is, in fact, to obtain complete combustion, but the slowest possible of the combustible mass, including the long of the glass wall, with an illuminating and smokeless flame, and this despite the low combustion speed sought.

Pour obtenir une fusion uniforme de l'ensemble de la surface supérieure de la bougie, et non seulement d'une portion de cette surface contiguë à la mèche, il est donc nécessaire d'abaisser de façon significative le point de fusion de la paraffine utilisée pour la fabrication de la bougie. Or, industriellement, on ne dispose généralement pas de paraffine répondant de façon parfaitement satisfaisante à cette condition et, pour abaisser encore davantage le point de fusion de la paraffine constituant essentiellement la bougie, il a été envisagé d'incorporer à cette paraffine de qualité commerciale, un composé combustible liquide. Ceci permet en effet de fondre la bougie suivant toute sa surface supérieure, même au contact de la paroi de verre de la verrine, ce qui n'est d'ailleurs possible que parce que la bougie est logée dans une enceinte en verre ou dans tout autre type de récipient analogue. En effet, si cette composition était utilisée isolément, par exemple sous forme d'un cierge, la composition liquide coulerait sur les faces latérales du cierge.To obtain a uniform fusion of the entire surface top of the candle, not just a portion of it surface adjacent to the wick, so it is necessary to lower so significant the melting point of the paraffin used for the candle making. However, industrially, we do not have usually no paraffin responding perfectly satisfying this condition and, to further lower the paraffin melting point essentially constituting the candle it has been considered to incorporate into this commercial grade paraffin a liquid combustible compound. This makes it possible to melt the candle along its entire upper surface, even in contact with the wall of glass of the verrine, which is only possible because the candle is housed in a glass enclosure or in any other type of similar container. Indeed, if this composition was used in isolation, for example in the form of a candle, the liquid composition would flow on the side faces of the candle.

On obtient cependant ainsi une composition de bougie, qui brûle d'une manière régulière en produisant une flamme lumineuse, d'une hauteur satisfaisante, et sans fumées, qui ne risque pas de s'éteindre à la suite d'une alimentation en air insuffisante. However, a candle composition is obtained, which burns in a regular manner by producing a luminous flame, of a satisfactory height, and without smoke, which is not likely to go out at following an insufficient air supply.

Dans la pratique, on constate toutefois que la vitesse de combustion devient alors trop élevée, ce qui réduit la durée de vie de la bougie, et il s'avère nécessaire d'incorporer, dans la composition de paraffine, un additif apte à réduire sa vitesse de combustion, sans altérer pour autant ni l'aptitude de la bougie à fondre à basse température, ni la qualité de sa combustion, en particulier, l'absence de production de fumées noires.In practice, however, it can be seen that the speed of combustion then becomes too high, reducing the service life of the candle, and it turns out to be necessary to incorporate, in the composition of paraffin, an additive capable of reducing its burning speed, without however alter the ability of the candle to melt at low temperature, nor the quality of its combustion, in particular, the absence production of black smoke.

Un savant équilibre doit donc par conséquent être respecté entre la quantité du composé liquide combustible introduit dans la composition de paraffine de base et la teneur de cette composition en ralentisseur de combustion.A careful balance must therefore be respected between the quantity of the combustible liquid compound introduced into the basic paraffin composition and the content of this composition in combustion retarder.

On ne sait pas aujourd'hui, dans la technique, fabriquer des verrines qui puissent brûler sans interruption pendant plus de 10 jours, et de préférence plus de 12 jours. Plus exactement, on ne dispose pas, sur le marché, de compositions de paraffine, seule ou en mélange, éventuellement avec des additifs, qui permettent d'atteindre directement les temps de combustion relativement longs réclamés par le consommateur. Des solutions ont été proposées pour ralentir la combustion comme dans FR-A-2 798 723 ou dans WO9923416, faisant appel à des artifices mécaniques logés, par exemple, au niveau de la mèche, mais sans pouvoir atteindre les temps de combustion cités précédemment.We do not know today, in the technique, to manufacture verrines that can burn continuously for more than 10 days, and preferably more than 12 days. More precisely, we do not does not have, on the market, paraffin compositions, alone or in mixing, possibly with additives, which allow directly the relatively long combustion times claimed by the consumer. Solutions have been proposed to slow down the combustion as in FR-A-2 798 723 or in WO9923416, using mechanical devices housed, for example, at the level of the wick, but without being able to reach the combustion times cited above.

C'est ce problème que se propose de résoudre la présente invention et elle vise à proposer dans ce but une composition de paraffine utilisable comme bougie dans des verrines, ou tout autre type de contenant, à section relativement large, qui se prête à une combustion très lente et parfaitement régulière, et dont la flamme provoque la fusion suivant la totalité de sa surface supérieure, même lorsque l'enceinte de verre a des dimensions transversales importantes, sans provoquer d'émission de fumées.It is this problem which the present proposes to solve. invention and it aims to propose for this purpose a composition of paraffin usable as candle in verrines, or any other type container, relatively large section, which lends itself to a very slow and perfectly regular combustion, and whose flame causes the fusion along its entire upper surface, even when the glass enclosure has large transverse dimensions, without causing smoke emission.

L'invention a également pour but de proposer une telle composition de paraffine, qui, utilisée dans une verrine ou un récipient de grandes dimensions, a une durée de combustion largement supérieure à celle des compositions de la technique antérieure.The invention also aims to provide such a paraffin composition, which, when used in a verrine or container large dimensions, has a burning time largely higher than that of the compositions of the prior art.

L'invention a enfin pour but de proposer une composition de ce type, apte à brûler sur de longues périodes sans risque d'extinction et sans production de fumées. The invention finally aims to provide a composition of this type, able to burn over long periods without risk of extinction and without smoke production.

A cet effet, l'invention a pour objet une composition de paraffine utilisable comme bougie à longue durée de combustion, caractérisée en ce qu'elle comprend :

  • environ 5 à 25% en poids d'ester méthylique d'au moins un acide gras, destiné à abaisser le point de fusion de la paraffine ;
  • un copolymère de type monooléfine-ester vinylique, destiné à limiter la vitesse de fusion de la paraffine, dont la teneur en poids dans la composition de paraffine est inférieure à 10% et, de préférence, inférieure à 7,5% ;
  • un complément à 100% en poids de la composition constitué d'au moins une paraffine ayant un point de fusion inférieur à 65°C, et de préférence inférieur à 58°C, et éventuellement, des additifs usuels dans de telles compositions.
To this end, the subject of the invention is a paraffin composition which can be used as a candle with a long burning time, characterized in that it comprises:
  • about 5 to 25% by weight of methyl ester of at least one fatty acid, intended to lower the melting point of the paraffin;
  • a copolymer of the monoolefin-vinyl ester type, intended to limit the rate of melting of the paraffin, whose content by weight in the paraffin composition is less than 10% and, preferably, less than 7.5%;
  • a complement to 100% by weight of the composition consisting of at least one paraffin having a melting point of less than 65 ° C, and preferably less than 58 ° C, and optionally, the usual additives in such compositions.

Comme ester méthylique d'au moins un acide gras, on peut avantageusement utiliser un mélange d'esters méthyliques de colza.As the methyl ester of at least one fatty acid, it is possible to advantageously use a mixture of rapeseed methyl esters.

Le copolymère utilisé du type monooléfine-ester vinylique est avantageusement un copolymère d'éthylène vinylacétate ou en abrégé E.V.A..The copolymer used of the monoolefin-vinyl ester type is advantageously an ethylene vinyl acetate copolymer or for short E.V.A ..

Les additifs utilisés peuvent être présents en des quantités généralement inférieures à 10% et de préférence inférieures à 5% en poids de la composition de paraffine et comprendre un colorant, un parfum, un insecticide, un agent d'amélioration de l'état de surface de la composition ou autres.The additives used may be present in amounts generally less than 10% and preferably less than 5% in weight of the paraffin composition and include a colorant, a perfume, insecticide, agent for improving the surface finish of composition or others.

Le complément à 100% de la composition est réalisé avec une paraffine d'origine pétrolière ou autre, à bas point de fusion inférieur à 65°C, et de préférence inférieur à 58°C, mesuré selon la norme NFT 60-114.The complement to 100% of the composition is carried out with a paraffin of petroleum or other origin, with a low melting point below 65 ° C, and preferably less than 58 ° C, measured according to standard NFT 60-114.

La durée totale de combustion d'une telle composition à base de paraffine, équipée d'une mèche appropriée, dans une verrine ou un autre récipient cylindrique de grand diamètre et de grande hauteur peut atteindre, voire dépasser, 12 jours sans incident.The total burning time of such a composition based on paraffin, equipped with an appropriate wick, in a verrine or a other cylindrical container of large diameter and great height can reach or even exceed 12 days without incident.

L'invention a également pour objet l'utilisation d'une telle composition de paraffine dans une verrine ou autre contenant.The invention also relates to the use of such a paraffin composition in a verrine or other container.

Une forme préférée de mise en oeuvre de l'invention va être décrite dans l'Exemple suivant, qui n'a pas de caractère limitatif. A preferred form of implementation of the invention will be described in the following example, which is not limiting.

ExempleExample

Dans cette forme de mise en oeuvre, la composition de paraffine conforme à l'invention a la formulation suivante, en % en poids :

  • paraffine à bas point de fusion : 75%,
  • ester méthylique de colza (appellation commerciale, RADIA® 7961): 20%,
  • un copolymère éthylène vinylacétate, en abrégé E.V.A., destiné à ralentir la vitesse de combustion (appellation commerciale OKERIM® 5415 H ou équivalent): 5%.
In this embodiment, the paraffin composition in accordance with the invention has the following formulation, in% by weight:
  • paraffin with low melting point: 75%,
  • rapeseed methyl ester (trade name, RADIA® 7961): 20%,
  • an ethylene vinyl acetate copolymer, abbreviated as EVA, intended to slow down the rate of combustion (trade name OKERIM® 5415 H or equivalent): 5%.

Les caractéristiques de la paraffine à bas point de fusion utilisée sont rassemblées dans le Tableau 1 Caractéristiques de la paraffine à bas point de fusion. Caractéristiques Normes Valeurs Point de fusion NFT 60-114 50,1°C Pénétrabilité à l'aiguille à 25°C NFT 60-123 16 x 1/ 10 mm Point éclair luchaire NFT 60-103 204°C Teneur en huile NFT 60-120 ≤ 0,5% en masse The characteristics of the low melting paraffin used are collated in Table 1 Characteristics of paraffin with low melting point. Characteristics standards Values Fusion point NFT 60-114 50.1 ° C Needle penetration at 25 ° C NFT 60-123 16 x 1/10 mm Luchaire flash point NFT 60-103 204 ° C Oil content NFT 60-120 ≤ 0.5% by mass

Le RADIA® 7961 utilisé est un mélange d'esters méthyliques de colza dont les caractéristiques sont rassemblées dans le Tableau 2. Esters méthyliques de colza Caractéristiques Méthodes Valeurs Indice d'acide AOCS Cd 3a-63 ≤ 1 mg KOH/g Indice d'iode 105 à 120/g/I2/100g Teneur en eau AOCS Ca 2a-45 ≤ 0,02% Teneur en glycérol libre AOCS Ca 14-65 ≤ 0,03% Teneur totale en glycérol AOCS Ca 14-65 ≤ 0,25% Apparence à 20°C Liquide huileux jaune pâle Point d'écoulement -10°C Point de trouble 8°C Masse spécifique à 25°C 875 kg/m3 Masse spécifique à 100°C 825 kg/m3 Viscosité à 40°C 4,2mm2/s Point éclair 180°C The RADIA® 7961 used is a mixture of rapeseed methyl esters, the characteristics of which are given in Table 2. Rapeseed methyl esters Characteristics Methods Values Acid number AOCS Cd 3a-63 ≤ 1 mg KOH / g Iodine value 105 to 120 / g / I 2 / 100g Water content AOCS Ca 2a-45 ≤ 0.02% Free glycerol content AOCS Ca 14-65 ≤ 0.03% Total glycerol content AOCS Ca 14-65 ≤ 0.25% Appearance at 20 ° C Pale yellow oily liquid Pour point -10 ° C Cloud point 8 ° C Specific mass at 25 ° C 875 kg / m 3 Specific mass at 100 ° C 825 kg / m 3 Viscosity at 40 ° C 4.2mm 2 / s Flash point 180 ° C

L'OKERIM® 5415H est un mélange de copolymères d'E.V.A., utilisé habituellement comme modificateur des propriétés cristallines des paraffines hydrocarbonées (voir Tableau 3) Mélange de copolymères d'E.V.A. Caractéristiques Normes Valeurs Point de congélation ASTM D938 59-65°C Pénétration à 25°C ASTM D1321 12-18 dmm Pénétration à 43,3°C ASTM D 1445 66-76 mm2/s Couleur Saybolt ASTM D 156 ≥ 26 OKERIM® 5415H is a mixture of EVA copolymers, usually used as a modifier of the crystalline properties of hydrocarbon paraffins (see Table 3) Blend of EVA copolymers Characteristics standards Values Freezing point ASTM D938 59-65 ° C Penetration at 25 ° C ASTM D1321 12-18 dmm Penetration at 43.3 ° C ASTM D 1445 66-76 mm 2 / s Color Saybolt ASTM D 156 ≥ 26

A partir de cette composition à base de paraffine, on a réalisé une bougie comprenant une mèche armée d'étain numéro 3, dont la vitesse de combustion est de 3 g/h et qui est logée dans un récipient cylindrique en verre de 30 cm de hauteur et de 8,5 cm de diamètre.From this paraffin-based composition, we produced a candle comprising a wick armed with tin number 3, the combustion rate is 3 g / h and which is housed in a container cylindrical glass 30 cm high and 8.5 cm in diameter.

La verrine ainsi réalisée présente une durée totale de combustion d'au moins 12 jours.The glass thus produced has a total burning time at least 12 days.

La combustion de la composition de paraffine est complète, y compris le long de la paroi de verre, la chaleur de la flamme s'avérant suffisante pour fondre la composition suivant toute sa surface supérieure.The combustion of the paraffin composition is complete, including included along the glass wall, the heat of the flame being sufficient to melt the composition along its entire surface higher.

La flamme résultante est lumineuse et sans fumée et elle éclaire de façon satisfaisante, malgré la faible vitesse de combustion de la composition.The resulting flame is bright and smoke-free and it lights up satisfactorily, despite the low rate of combustion of the composition.

Claims (6)

  1. A paraffin composition suitable for use as a long-burning candle, characterised in that it comprises:
    approximately 5 to 25% by weight of methyl ester of at least one fatty acid,
    a copolymer of the'monoolefin-vinyl ester type, whose content by weight in the paraffin composition is less than 10% and, preferably, less than 7.5%;
    the remainder up to 100% by weight of the composition consisting of at least one paraffin having a melting point lower than 65°C and, preferably, lower than 58°C and, optionally, additives conventionally used in such compositions.
  2. A composition according to claim 1, characterised in that the methyl ester of at least one fatty acid is a mixture of rape methyl esters.
  3. A composition according to the preceding claims, characterised in that the copolymer of the monoolefin-vinyl ester type is an ethylene-vinyl acetate, or EVA, copolymer.
  4. A composition according to any one of claims 1 to 3, characterised in that the quantities of additives present in the composition are less than 10% and, preferably, than 5% by weight.
  5. Use of the paraffin composition according to any one of claims 1 to 4 in a glass jar or other type of container.
  6. Use according to claim 5, characterised in that the glass jar or other container is cylindrical in shape, with a height of at least 30 cm and a diameter of at least 8.5 cm.
EP02727679A 2001-04-24 2002-04-19 Paraffin compositions and use thereof in glass casings or other containers Expired - Lifetime EP1397473B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0105493 2001-04-24
FR0105493A FR2823760B1 (en) 2001-04-24 2001-04-24 NOVEL PARAFFIN COMPOSITION AND ITS USE IN VERRINES OR OTHER CONTAINERS
PCT/FR2002/001347 WO2002086040A1 (en) 2001-04-24 2002-04-19 Novel paraffin compositions and use thereof in glass casings or other containers

Publications (2)

Publication Number Publication Date
EP1397473A1 EP1397473A1 (en) 2004-03-17
EP1397473B1 true EP1397473B1 (en) 2004-10-13

Family

ID=8862625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02727679A Expired - Lifetime EP1397473B1 (en) 2001-04-24 2002-04-19 Paraffin compositions and use thereof in glass casings or other containers

Country Status (7)

Country Link
EP (1) EP1397473B1 (en)
AT (1) ATE279498T1 (en)
DE (1) DE60201605T2 (en)
FR (1) FR2823760B1 (en)
HU (1) HUP0303979A3 (en)
PL (1) PL363268A1 (en)
WO (1) WO2002086040A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2847261B1 (en) * 2002-11-14 2006-11-24 Totalfinaelf France COMPOSITION OF PARAFFINS AND THEIR USE IN THE MANUFACTURE OF CANDLES

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9222458D0 (en) * 1992-10-26 1992-12-09 Exxon Chemical Patents Inc Oil additives and compositions
AT402073B (en) * 1995-03-28 1997-01-27 Glasner Alfred Process for the production of safety candles
JPH10237481A (en) * 1997-02-24 1998-09-08 Nippon Oil Co Ltd Wax composition for candles

Also Published As

Publication number Publication date
EP1397473A1 (en) 2004-03-17
PL363268A1 (en) 2004-11-15
FR2823760B1 (en) 2004-05-28
DE60201605D1 (en) 2004-11-18
HUP0303979A2 (en) 2004-03-01
DE60201605T2 (en) 2005-11-03
WO2002086040A1 (en) 2002-10-31
HUP0303979A3 (en) 2008-03-28
ATE279498T1 (en) 2004-10-15
FR2823760A1 (en) 2002-10-25

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