WO1996020388A1 - Novel environmentally friendly artificial target, in particular for clay pigeon shooting, and method for making same - Google Patents

Novel environmentally friendly artificial target, in particular for clay pigeon shooting, and method for making same Download PDF

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Publication number
WO1996020388A1
WO1996020388A1 PCT/FR1995/001725 FR9501725W WO9620388A1 WO 1996020388 A1 WO1996020388 A1 WO 1996020388A1 FR 9501725 W FR9501725 W FR 9501725W WO 9620388 A1 WO9620388 A1 WO 9620388A1
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WIPO (PCT)
Prior art keywords
artificial target
target according
binder
chosen
artificial
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Application number
PCT/FR1995/001725
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French (fr)
Inventor
Jean-Luc Bouliez
Alain Rezazgui
Marius Muller
Original Assignee
Sivia
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Publication date
Application filed by Sivia filed Critical Sivia
Priority to EP95943269A priority Critical patent/EP0799405A1/en
Publication of WO1996020388A1 publication Critical patent/WO1996020388A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
    • F41J1/00—Targets; Target stands; Target holders
    • F41J1/01—Target discs characterised by their material, structure or surface, e.g. clay pigeon targets characterised by their material

Definitions

  • the present invention relates to a new artificial target, non-toxic vis-à-vis the environment, useful in particular for clay pigeon shooting, made of divided material, agglomerated by a binder, and a method for producing such artificial targets.
  • the game of clay pigeon shooting requires the use of standardized targets which have the shape of a curved disc or "plate” whose convex face is provided with circular ribs.
  • these targets are based on finely divided materials (in English or in the technical jargon "filler") agglomerated by means of binders, capable of ensuring sufficient cohesion of the target in order to resist the energy communicated to the projectile during launching .
  • the finely divided materials which are suitable for the realization of such objects are generally mineral in nature and come in particular from the crushing or grinding of massive rocks (siliceous or limestone materials ...), from the sawing of certain materials (slate, marble. ..) or other powdery materials such as talc or flour. These materials must not be toxic or dangerous to the environment. Such materials are commonly used and are widely described in numerous patents relating to targets in particular for clay pigeon shooting. We can cite for example the patent application FR- ⁇ -2,685,465 filed by the applicant.
  • binders Numerous binders have been proposed in order to agglomerate the divided materials mentioned above.
  • binders most commonly used in the prior art, there may be mentioned coal or petroleum pitch as well as bitumen.
  • US Patent 3,376,040 thus describes a fragmentable target consisting of 8 to 25% by weight of coal pitch having a melting point of between 75 and 177 ° C., the rest of the target being constituted by the divided material.
  • Swedish patent 76 04126 also describes targets including the binder is based on an oil pitch.
  • Patent application EP-A-592 502 mentions binders such as coal tar or bitumen associated with water-absorbent particles for the production of fragmentable targets, allowing the final disintegration of the targets by absorption of moisture.
  • Canadian Patent 1,260,653 describes binders based on petroleum pitch modified with a bis-stereolamide derivative.
  • patent application WO94 / 12847 describes a target whose divided material is based on powdered gypsum and the binder is of the hydraulic type such as slaked lime or clay.
  • patent application EP 487 381 describes artificial targets the binder of which consists of plaster.
  • US Pat. No. 5,317,037 mentions sugars, in particular mixtures of dextrose and fructose, polydextrose, maltose, manitol, gelatin, glutene, rhydroxymethylcellulose, gum arabic and starch, as binders.
  • the binder is reinforced with fibers chosen from linen, cotton, viscose, rayon or wood. These binders also require an additional heat treatment step to make it possible to remove the solvent, in particular water.
  • Japanese patent application 57-178732 describes a target composed of an agglomerated material and a binder consisting of a thermoplastic resin, in particular rosin, rosin esterified or hydrogenated, polyterpene resins, low molecular weight polystyrenes, xylene resins, coumarone-indene resins, petroleum resins or modified petroleum resins or waxes. These resins have a molecular weight between 200 and 3000.
  • Japanese application 53-007765 describes an artificial target whose binder is based on a petroleum resin.
  • patent application FR 2 316 574 describes a binder based on terpene resin whose molecular weight is between 300 and 3000 and the softening point between 60 and 200 ° C.
  • the object of the present invention is to propose targets which simultaneously meet several criteria as they can be defined below:
  • the artificial target according to the invention is characterized in that the binder for agglomerating the divided material comprises an aliphatic hydrocarbon material whose melting point is between 50 and
  • thermoplastic resin 150 ° C and an additive, improving the fragility of the target upon impact, comprising a thermoplastic resin.
  • finely divided materials which may be suitable in the context of the present invention, use will advantageously be made of mineral fillers originating from the crushing or grinding of massive rocks (siliceous or limestone fillers, bauxite, alumina, etc.) or originating from the sawing of certain materials such as slate or marble. It is also possible to use other pulverulent materials capable of being agglomerated (talc, fly ash from thermal power plants or from cement works, etc.).
  • the proportion of divided materials and binders may vary according to that commonly used in the art considered.
  • the targets according to the invention comprise in percentage by weight of 5 to 30% of binders and 70 to 95% of divided materials.
  • the artificial target is characterized in that said binder partly comprises by weight:
  • said binder partly comprises by weight:
  • aliphatic hydrocarbonaceous material one will designate that which contains substantially only carbon and hydrogen atoms and which comes, in particular, from petroleum. It is therefore essentially a hydrophobic and non-aromatic material.
  • additives these are preferably chosen from thermoplastic resins of molecular weight between 200 and 3000 and a softening point between 50 and 150 ° C.
  • the resin is chosen from rosin and its esterified or hydrogenated derivatives.
  • the resin is chosen from petroleum resins or modified petroleum resins.
  • the invention also relates to a process for producing artificial targets as described above, characterized in that: a) the divided material and the constituents of the binder are mixed at an appropriate temperature, b) the appropriate quantity of the mixture obtained is pressure molded in a), c) the artificial target is recovered.
  • the manufacturing of the targets is done in a traditional way by hot mixing in a kneader, continuously, 5 to 30% of binder, in particular paraffin or wax additive with rosin or petroleum resins and 70 to 95% of a divided material, including a limestone filler.
  • the mixing is carried out at a temperature equal to or higher than the melting point of the hydrocarbon material, then pumped and injected into the molds of a press in order to form the targets.
  • the targets are cooled and then removed from the mold, they can be used raw or painted before use.
  • the divided material agglomerated by a binder can be put into the form of granules after hot mixing and cooling, these granules can be used in presses for injection under pressure (press for injection of plastics) in order to produce non-toxic targets according to the 'invention.
  • Example 1 the invention is now illustrated by the following two examples: Example 1
  • Example 2 The 5 kg of rosin are replaced by a petroleum resin supplied by the company Exxon under the brand Escorez. The rest of the procedure is identical to Example 1.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

An environmentally friendly artificial target, in particular for clay pigeon shooting, made of a binder-agglomerated divided material and remarkable in that the binder includes an aliphatic hydrocarbon material with a melting point of 50-150 °C, and an additive enhancing the impact brittleness of the target and including a thermoplastic resin. In particular, the additive is selected from rosin or esterified or hydrogenated derivatives thereof, or optionally modified petroleum resins. A method for making such artificial targets is also disclosed.

Description

NOUVELLE CIBLE ARTIFICIELLE, NOTAMMENT POUR LE JEU DE BALL- TRAP, NON TOXIOJJE VIS-A-VIS DE L'ENVIRONNEMENT ET PROCEDE DE PRODUCTION D'UNE TELLE CIBLENEW ARTIFICIAL TARGET, PARTICULARLY FOR THE BALL TRAP GAME, NON TOXIOJJE WITH RESPECT TO THE ENVIRONMENT AND PROCESS FOR PRODUCING SUCH A TARGET
La présente invention concerne une nouvelle cible artificielle, non toxique vis-à-vis de l'environnement, utile notamment pour le jeu de ball-trap, en matériau divisé, aggloméré par un liant, et un procédé de production de telles cibles artificielles.The present invention relates to a new artificial target, non-toxic vis-à-vis the environment, useful in particular for clay pigeon shooting, made of divided material, agglomerated by a binder, and a method for producing such artificial targets.
Le jeu de ball-trap est bien connu des chasseurs, car il constitue un moyen efficace d'entraînement en période de fermeture de la chasse. Il est également l'objet de concours très prisé de ces mêmes chasseurs.The game of clay pigeon shooting is well known to hunters because it constitutes an effective means of training during the closed season. It is also the object of contests very popular with these same hunters.
Sous son aspect sportif, le jeu de ball-trap requiert l'utilisation de cibles normalisées qui ont la forme d'un disque incurvé ou "assiette" dont la face convexe est munie de nervures circulaires.In its sporting aspect, the game of clay pigeon shooting requires the use of standardized targets which have the shape of a curved disc or "plate" whose convex face is provided with circular ribs.
Traditionnellement ces cibles sont à base de matériaux finement divisés (en anglais ou dans le jargon technique "filler") agglomérés au moyen de liants, propres à assurer une cohésion suffisante de la cible afin de résister à l'énergie communiquée au projectile lors du lancement.Traditionally, these targets are based on finely divided materials (in English or in the technical jargon "filler") agglomerated by means of binders, capable of ensuring sufficient cohesion of the target in order to resist the energy communicated to the projectile during launching .
Les matériaux finement divisés qui conviennent pour la réalisation de tels objets sont en général de nature minérale et proviennent en particulier du concassage ou du broyage de roches massives (matériaux siliceux ou calcaires ...), du sciage de certains matériaux (ardoise, marbre...) ou d'autres matériaux pulvérulents comme le talc ou les farines. Ces matériaux ne doivent pas présenter un caractère toxique ou dangereux vis-à- vis de l'environnement. De tels matériaux sont couramment utilisés et sont largement décrits dans de nombreux brevets relatifs à des cibles notamment pour jeu de ball-trap. On pourra citer par exemple la demande de brevet FR-Λ-2 685 465 déposée par la demanderesse.The finely divided materials which are suitable for the realization of such objects are generally mineral in nature and come in particular from the crushing or grinding of massive rocks (siliceous or limestone materials ...), from the sawing of certain materials (slate, marble. ..) or other powdery materials such as talc or flour. These materials must not be toxic or dangerous to the environment. Such materials are commonly used and are widely described in numerous patents relating to targets in particular for clay pigeon shooting. We can cite for example the patent application FR-Λ-2,685,465 filed by the applicant.
De nombreux liants ont été proposés afin d'agglomérer les matériaux divisés mentionnés précédemment. Parmi les liants les plus couramment employés dans l'art antérieur, on peut citer le brai de houille ou de pétrole ainsi que le bitume.Numerous binders have been proposed in order to agglomerate the divided materials mentioned above. Among the binders most commonly used in the prior art, there may be mentioned coal or petroleum pitch as well as bitumen.
Le brevet américain 3 376 040 décrit ainsi une cible fragmentable constituée de 8 à 25 % en poids de brai de houille ayant un point de fusion compris entre 75 et 177°C, le reste de la cible étant constitué par le matériau divisé.US Patent 3,376,040 thus describes a fragmentable target consisting of 8 to 25% by weight of coal pitch having a melting point of between 75 and 177 ° C., the rest of the target being constituted by the divided material.
Le brevet suédois 76 04126 décrit également des cibles dont le liant est à base d'un brai de pétrole.Swedish patent 76 04126 also describes targets including the binder is based on an oil pitch.
La demande de brevet EP-A-592 502 mentionne pour la réalisation de cibles fragmentables des liants tels que le brai de houille ou du bitume associé à des particules absorbants l'eau permettant la désintégration finale des cibles par absorption d'humidité.Patent application EP-A-592 502 mentions binders such as coal tar or bitumen associated with water-absorbent particles for the production of fragmentable targets, allowing the final disintegration of the targets by absorption of moisture.
Le brevet canadien 1 260 653 décrit des liants à base de brai de pétrole modifié par un dérivé bis-stéréolamide.Canadian Patent 1,260,653 describes binders based on petroleum pitch modified with a bis-stereolamide derivative.
Toutes les réalisations décrites précédemment présentent l'inconvénient majeur d'utiliser des liants contenant, en plus ou moins grande proportion, des composés polynucléaires aromatiques tels que les benzo-alpha-pyrènes pouvant être toxiques ou dangereux vis-à-vis de l'environnement. Le brai de houille est le plus chargé en composés polynucléaires mais les brais de pétrole ou le bitume présentent une proportion encore trop élevée de ces polynucléaires aromatiques. Pour pallier cet inconvénient, plusieurs solutions ont été envisagées préconisant le remplacement des liants précités par d'autres liants plus acceptables du point de vue écologique.All the embodiments described above have the major drawback of using binders containing, in greater or lesser proportion, aromatic polynuclear compounds such as benzo-alpha-pyrenes which may be toxic or dangerous with regard to the environment. . Coal pitch is the most loaded with polynuclear compounds, but petroleum pitches or bitumen have an excessively high proportion of these aromatic polynuclear materials. To overcome this drawback, several solutions have been envisaged recommending the replacement of the above-mentioned binders by other binders which are more acceptable from an ecological point of view.
Par exemple, la demande de brevet W094/ 12847 décrit une cible dont le matériau divisé est à base de gypse en poudre et le liant est du type hydraulique comme la chaux éteinte ou l'argile.For example, patent application WO94 / 12847 describes a target whose divided material is based on powdered gypsum and the binder is of the hydraulic type such as slaked lime or clay.
De même, la demande de brevet EP 487 381 décrit des cibles artificielles dont le liant est constitué par du plâtre.Likewise, patent application EP 487 381 describes artificial targets the binder of which consists of plaster.
On a également proposé d'utiliser en tant que liant du silicate de soude éventuellement en association avec des dextrines. Ces réalisations sont notamment décrites dans le brevet US 5 316It has also been proposed to use, as binder, sodium silicate, optionally in combination with dextrins. These achievements are described in particular in US patent 5,316
313 et dans la demande de brevet danois 93 00165.313 and in Danish patent application 93 00165.
Ces cibles sont réalisées par mélange préalable du liant du matériau divisé et d'un solvant, notamment l'eau, ce solvant étant ensuite éliminé par traitement thermique. On a également proposé de remplacer les liants issus de brai par des liants organiques. Par exemple, la demande de brevet WO92/20635 préconise l'utilisation de liants dégradables à base de sucre et d'amidon.These targets are produced by premixing the binder of the divided material and a solvent, in particular water, this solvent then being removed by heat treatment. It has also been proposed to replace the binders from pitch with organic binders. For example, patent application WO92 / 20635 recommends the use of degradable binders based on sugar and starch.
Le brevet US 5 3 17 037 mentionne comme liants les sucres, notamment les mélanges de dextrose et de fructose, le polydextrose, le maltose, le manitol, la gélatine, le glutène, rhydro.xyméthylcellulose, la gomme arabique et l'amidon. Le liant est renforcé par des fibres choisies parmi le lin, le coton, la viscose, la rayonne ou le bois. Ces liants nécessitent également une étape supplémentaire de traitement thermique pour permettre d'éliminer le solvant, notamment l'eau.US Pat. No. 5,317,037 mentions sugars, in particular mixtures of dextrose and fructose, polydextrose, maltose, manitol, gelatin, glutene, rhydroxymethylcellulose, gum arabic and starch, as binders. The binder is reinforced with fibers chosen from linen, cotton, viscose, rayon or wood. These binders also require an additional heat treatment step to make it possible to remove the solvent, in particular water.
On a également proposé dans le brevet US 4 623 150 de remplacer les liants traditionnels par des cires ou des paraffines solubles. La préparation de telles cibles nécessite également l'utilisation d'un solvant qui doit être éliminé par la suite. Parmi les solvants sont cités notamment les solvants organiques comme le xylène, le toluène, les alcools ainsi que l'eau.It has also been proposed in US Pat. No. 4,623,150 to replace traditional binders with soluble waxes or paraffins. The preparation of such targets also requires the use of a solvent which must be removed subsequently. Among the solvents, organic solvents such as xylene, toluene, alcohols and water are mentioned in particular.
La demande de brevet japonais 57-178732 décrit une cible composée d'un matériau aggloméré et d'un liant constitué d 'une résine thermoplastique notamment la colophane, la colophane estérifiée ou hydrogénée, les résines polyterpéniques, les polystyrènes de bas poids moléculaire, les résines xylènes, les résines coumarone-indène, les résines de pétrole ou les résines de pétrole modifiées ou les cires. Ces résines présentent un poids moléculaire compris entre 200 et 3000. De même, la demande japonaise 53-007765 décrit une cible artificielle dont le liant est à base d'une résine de pétrole.Japanese patent application 57-178732 describes a target composed of an agglomerated material and a binder consisting of a thermoplastic resin, in particular rosin, rosin esterified or hydrogenated, polyterpene resins, low molecular weight polystyrenes, xylene resins, coumarone-indene resins, petroleum resins or modified petroleum resins or waxes. These resins have a molecular weight between 200 and 3000. Likewise, Japanese application 53-007765 describes an artificial target whose binder is based on a petroleum resin.
Enfin, la demande de brevet FR 2 316 574 décrit un liant à base de résine terpénique dont le poids moléculaire est compris entre 300 et 3000 et le point de ramollissement entre 60 et 200°C. Bien que toutes les résines mentionnées précédemment pour remplacer les brais satisfassent aux exigences des Sociétés modernes en ce qui concerne l 'environnement, les cibles artificielles obtenues ne présentent pas toutes les caractéristiques de fragilité qui sont nécessaires au déroulement satisfaisant du jeu de ball-trap. En effet, lors de l'impact avec le plomb ou un métal équivalent, les cibles doivent être fragmentées en d'innombrables morceaux et, littéralement, "partir en fumée". Avec les résines citées ci-dessus, la fragmentation est incomplète et la cible est simplement cassée en quelques morceaux ce qui les rend tout à fait inopérantes pour le jeu considéré. D'ailleurs à la connaissance de la demanderesse, aucune des cibles décrites dans les brevets cités (à part celles dont le liant est à base de brai de houille, de pétrole ou de bitume) n'a été commercialisée.Finally, patent application FR 2 316 574 describes a binder based on terpene resin whose molecular weight is between 300 and 3000 and the softening point between 60 and 200 ° C. Although all of the resins mentioned previously to replace pitches meet the requirements of modern societies with regard to the environment, the artificial targets obtained do not have all the brittleness characteristics which are necessary for the satisfactory operation of the game of clay pigeon shooting. Indeed, upon impact with lead or an equivalent metal, the targets must be fragmented into innumerable pieces and, literally, "go up in smoke". With the resins mentioned above, the fragmentation is incomplete and the target is simply broken into a few pieces which makes them completely ineffective for the game in question. Besides, to the knowledge of the applicant, none of the targets described in the cited patents (apart from those whose binder is based on coal pitch, petroleum or bitumen) have been marketed.
L'objet de la présente invention est de proposer des cibles qui répondent simultanément à plusieurs critères tels qu'ils peuvent être définis ci-dessous :The object of the present invention is to propose targets which simultaneously meet several criteria as they can be defined below:
- elles doivent respecter l'environnement, c'est-à-dire qu'elles doivent être exemptes de composés polyaromatiques, - elles doivent être suffisamment solides lors du lancement pour ne pas être fissurées à cette occasion,- they must respect the environment, that is to say that they must be free of polyaromatic compounds, - they must be strong enough at launch not to be cracked on this occasion,
- lors de l'impact elles doivent être fragmentées en d'innombrables morceaux et donc présenter un caractère de fragilité suffisant,- upon impact they must be fragmented into innumerable pieces and therefore have a sufficient fragility character,
- en outre, ces cibles étant fabriquées à des cadences très élevées pour un coût nécessairement très modique, elles doivent pouvoir être produites selon le procédé traditionnel sans étape supplémentaire de séchage et sans faire intervenir de solvant. En outre, la présence d'un solvant à moins qu'il ne s'agisse d'eau, cause d'autres problèmes de pollution étant donné que ce solvant doit être ensuite récupéré, traité et éventuellement recyclé.- In addition, these targets being manufactured at very high rates for a necessarily very low cost, they must be able to be produced according to the traditional process without additional drying step and without involving solvent. In addition, the presence of a solvent, unless it is water, causes other pollution problems since this solvent must then be recovered, treated and possibly recycled.
Les buts définis ci-dessus sont atteints grâce aux cibles selon l'invention.The goals defined above are achieved thanks to the targets according to the invention.
La cible artificielle selon l'invention est caractérisée en ce que le liant permettant d'agglomérer le matériau divisé comprend une matière hydrocarbonée aliphatique dont le point de fusion est compris entre 50 etThe artificial target according to the invention is characterized in that the binder for agglomerating the divided material comprises an aliphatic hydrocarbon material whose melting point is between 50 and
150°C et un additif, améliorant la fragilité de la cible lors de l'impact, comprenant une résine thermoplastique.150 ° C and an additive, improving the fragility of the target upon impact, comprising a thermoplastic resin.
Parmi les matériaux finement divisés qui peuvent convenir dans le cadre de la présente invention, on utilisera avantageusement les charges minérales provenant du concassage ou du broyage de roches massives (charges siliceuses ou calcaire, bauxite, alumine ...) ou provenant du sciage de certains matériaux tels que l'ardoise ou le marbre. On peut également utiliser d'autres matériaux pulvérulents susceptibles d'être agglomérés f talc, cendres volantes de centrales thermiques ou de cimenterie ...).Among the finely divided materials which may be suitable in the context of the present invention, use will advantageously be made of mineral fillers originating from the crushing or grinding of massive rocks (siliceous or limestone fillers, bauxite, alumina, etc.) or originating from the sawing of certain materials such as slate or marble. It is also possible to use other pulverulent materials capable of being agglomerated (talc, fly ash from thermal power plants or from cement works, etc.).
On peut également utiliser des matériaux organiques comme la cellulose, la farine ou la sciure de bois.You can also use organic materials such as cellulose, flour or sawdust.
Parmi les charges de préférence utilisées dans le cadre de la présente invention, on mentionnera tout particulièrement les charges calcaires.Among the fillers preferably used in the context of the present invention, particular mention will be made of limestone fillers.
La proportion de matériaux divisés et de liants peut varier selon celle communément en usage dans l'art considéré.The proportion of divided materials and binders may vary according to that commonly used in the art considered.
En général, les cibles selon l'invention comprendroni en pourcentage en poids de 5 à 30 % de liants et 70 à 95 % de matériaux divisés. Selon une première variante préférée, la cible artificielle est caractérisée en ce que ledit liant comprend en partie en poids :In general, the targets according to the invention comprise in percentage by weight of 5 to 30% of binders and 70 to 95% of divided materials. According to a first preferred variant, the artificial target is characterized in that said binder partly comprises by weight:
- matière hvdrocarbonée 80 à 99 - additif 1 à 20.- hvdrocarbon material 80 to 99 - additive 1 to 20.
De préférence ledit liant comprend en partie en poids :Preferably, said binder partly comprises by weight:
- matière hydrocarbonée 88 à 98- hydrocarbon material 88 to 98
- additif 2 à l2. Par l'expression "matière hydrocarbonée aliphatique", on désignera celle qui ne contient sensiblement que des atomes de carbone et d'hydrogène et qui provient, notamment, du pétrole. Il s'agit donc de matière essentiellement hydrophobe et non aromatique.- additive 2 to 12. By the expression "aliphatic hydrocarbonaceous material", one will designate that which contains substantially only carbon and hydrogen atoms and which comes, in particular, from petroleum. It is therefore essentially a hydrophobic and non-aromatic material.
On a déjà indiqué que les paraffines ou les cires employées seules conduisaient à des cibles présentant un degré de fragilité inférieur aux cibles traditionnelles. De façon surprenante, la demanderesse a trouvé qu'en mélangeant les matières hydrocarbonées aliphatiques mentionnées ci-dessus avec une faible proportion de résine thermoplastique, il était possible d'obtenir des cibles similaires à celles de l'art antérieur relatif aux liants à base de brai ou de bitume, sans avoir les inconvénients de toxicité liés à ces derniers.It has already been indicated that paraffins or waxes used alone lead to targets having a lower degree of brittleness than traditional targets. Surprisingly, the applicant has found that by mixing the aliphatic hydrocarbon materials mentioned above with a small proportion of thermoplastic resin, it was possible to obtain targets similar to those of the prior art relating to binders based on pitch or bitumen, without having the toxicity drawbacks associated with these.
En ce qui concerne les additifs, ceux-ci sont de préférence choisis parmi les résines thermoplastiques de poids moléculaire compris entre 200 et 3000 et un point de ramollissement compris entre 50 et 150°C. Avantageusement la résine est choisie parmi la colophane et ses dérivés estérifiés ou hydrogénés.As regards the additives, these are preferably chosen from thermoplastic resins of molecular weight between 200 and 3000 and a softening point between 50 and 150 ° C. Advantageously, the resin is chosen from rosin and its esterified or hydrogenated derivatives.
Selon une autre variante préférée, la résine est choisie parmi les résines de pétrole ou les résines de pétrole modifiées.According to another preferred variant, the resin is chosen from petroleum resins or modified petroleum resins.
L'invention concerne également un procédé de production de cibles artificielles telles que décrites précédemment caractérisé en ce que : a) on mélange le matériau divisé et les constituants du liant à une température appropriée, b) on moule sous pression la quantité appropriée du mélange obtenu en a), c) on récupère la cible artificielle.The invention also relates to a process for producing artificial targets as described above, characterized in that: a) the divided material and the constituents of the binder are mixed at an appropriate temperature, b) the appropriate quantity of the mixture obtained is pressure molded in a), c) the artificial target is recovered.
La fabrication des cibles se fait de fa on traditionnelle en mélangeant à chaud dans un malaxeur, en continu, 5 à 30 % de liant, notamment de paraffine ou de cire additivées de colophane ou de résines de pétrole et 70 à 95 % d'un matériau divisé, notamment une charge calcaire. Le mélange est effectué à une température égale ou supérieure au point de fusion de la matière hydrocarbonée puis pompé et injecté dans les moules d'une presse afin de former les cibles. Les cibles sont refroidies puis démoulées, elles peuvent être utilisées brutes ou peintes avant leur utilisation.The manufacturing of the targets is done in a traditional way by hot mixing in a kneader, continuously, 5 to 30% of binder, in particular paraffin or wax additive with rosin or petroleum resins and 70 to 95% of a divided material, including a limestone filler. The mixing is carried out at a temperature equal to or higher than the melting point of the hydrocarbon material, then pumped and injected into the molds of a press in order to form the targets. The targets are cooled and then removed from the mold, they can be used raw or painted before use.
Le matériau divisé aggloméré par un liant peut être mis sous forme de granulés après mélange à chaud et refroidissement, ces granulés pourront être utilisés dans des presses à injecter sous pression (presse pour injection des matières plastiques) afin de produire des cibles non toxiques selon l'invention.The divided material agglomerated by a binder can be put into the form of granules after hot mixing and cooling, these granules can be used in presses for injection under pressure (press for injection of plastics) in order to produce non-toxic targets according to the 'invention.
A titre d'exemples non limitatifs, l'invention est maintenant illustrée par les deux exemples suivants : Exemple 1By way of nonlimiting examples, the invention is now illustrated by the following two examples: Example 1
Dans un malaxeur industriel on mélange à 100°C :In an industrial mixer we mix at 100 ° C:
- 900 kg d'un filler calcaire de granulométrie 0 à 120,- 900 kg of a limestone filler with grain sizes 0 to 120,
- 100 kg d'un mélange constitué de 95 kg de paraffine de point de fusion 63°C et 5 kg de colophane. Après malaxage, le mélange est envoyé dans une presse à mouler et les cibles fabriquées sont testées avec succès en résistance au lancement et au tir aux armes de chasse.- 100 kg of a mixture consisting of 95 kg of paraffin melting point 63 ° C and 5 kg of rosin. After mixing, the mixture is sent to a molding press and the manufactured targets are successfully tested for launch and firing resistance to hunting weapons.
Exemple 2 Les 5 kg de colophane sont remplacés par une résine de pétrole fournie par la société Exxon sous la marque Escorez. Le reste du mode opératoire est identique à l'exemple 1.Example 2 The 5 kg of rosin are replaced by a petroleum resin supplied by the company Exxon under the brand Escorez. The rest of the procedure is identical to Example 1.
Les cibles fabriquées et testées se sont comportées comme les cibles traditionnelles. Bien entendu, l'invention n'est pas limitée aux formes de réalisation décrites précédemment mais s'étend au contraire à tous les équiv alents permettant d'atteindre le même résultat. The targets manufactured and tested behaved like traditional targets. Of course, the invention is not limited to the embodiments described above but on the contrary extends to all the equivalents allowing the same result to be achieved.

Claims

REVENDICATIONS
1. Cible artificielle, non toxique vis-à-vis de l'environnement, notamment pour le jeu de ball-trap, en matériau divisé aggloméré par un liant, caractérisée en ce que ledit liant comprend 80 à 99 parties en poids d'une matière hydrocarbonée aliphatique dont le point de fusion est compris entre 50 et 150°C et 1 à 20 parties en poids d'un additif, améliorant la fragilité de la cible lors de l'impact, comprenant une résine thermoplastique.1. Artificial target, non-toxic vis-à-vis the environment, especially for clay pigeon shooting, made of divided material agglomerated by a binder, characterized in that said binder comprises 80 to 99 parts by weight of a aliphatic hydrocarbon material whose melting point is between 50 and 150 ° C and 1 to 20 parts by weight of an additive, improving the brittleness of the target upon impact, comprising a thermoplastic resin.
2. Cible artificielle selon la revendication 1, caractérisée en ce que ledit liant comprend en partie en poids : - matière hydrocarbonée 88 à 982. Artificial target according to claim 1, characterized in that said binder comprises in part by weight: - hydrocarbon material 88 to 98
- additif 2 à l2.- additive 2 to 12.
3. Cible artificielle selon l'une des revendications 1 ou 2, caractérisée en ce que la matière hydrocarbonée aliphatique est choisie parmi la cire, la paraffine seules ou en mélange. 3. Artificial target according to one of claims 1 or 2, characterized in that the aliphatic hydrocarbon material is chosen from wax, paraffin alone or as a mixture.
4. Cible artificielle selon l'une des revendications 1 ou 2 , caractérisée en ce que l'additif comprend une résine thermoplastique de poids moléculaire compris entre 200 et 3000.4. Artificial target according to one of claims 1 or 2, characterized in that the additive comprises a thermoplastic resin of molecular weight between 200 and 3000.
5. Cible artificielle selon la revendication 4, caractérisée en ce que la résine thermoplaslique présente un point de ramollissement compris entre 50 et 150°C.5. Artificial target according to claim 4, characterized in that the thermoplastic resin has a softening point between 50 and 150 ° C.
6. Cible artificielle selon la revendication 5, caractérisée en ce que la résine est choisie parmi la colophane et ses dérivés estérifiés ou hydrogénés.6. Artificial target according to claim 5, characterized in that the resin is chosen from rosin and its esterified or hydrogenated derivatives.
7. Cible artificielle selon la revendication 5, caractérisée en ce que la résine est choisie parmi la résine de pétrole ou la résine de pétrole modifiée.7. Artificial target according to claim 5, characterized in that the resin is chosen from petroleum resin or modified petroleum resin.
8. Cible artificielle selon l'une des revendications 1 à 7, caractérisée en ce que le matériau divisé minéral est choisi parmi ceux provenant du concassage ou du broyage de roches massives, du sciage de marbre, d'ardoise ou est choisi parmi le talc ou les farines.8. Artificial target according to one of claims 1 to 7, characterized in that the mineral divided material is chosen from those originating from the crushing or grinding of massive rocks, from sawing of marble, from slate or is chosen from talc or flours.
9. Cible artificielle selon la revendication 8, caractérisée en ce que le matériau est choisi parmi les matériaux calcaires.9. Artificial target according to claim 8, characterized in that the material is chosen from limestone materials.
10. Cible artificielle selon l'une des revendications 1 à 9, caractérisée en ce qu'elle est constituée en partie en poids de 5 à 30 % de liant et 70 à 95 % de matériau divisé.10. Artificial target according to one of claims 1 to 9, characterized in that it consists partly by weight of 5 to 30% of binder and 70 to 95% of divided material.
11. Procédé de production d'une cible artificielle selon l'une des revendications 1 à 10, caractérisé en ce que : a) on mélange le matériau divisé et les constituants du liant à une température appropriée, b) on moule sous pression une quantité appropriée du mélange obtenu en a), c) on récupère la cible artificielle.11. Method for producing an artificial target according to one of claims 1 to 10, characterized in that: a) the divided material and the constituents of the binder are mixed at an appropriate temperature, b) a suitable quantity of the mixture obtained in a) is pressure molded, c) the artificial target is recovered.
12. Procédé de production d'une cible artificielle selon l'une des revendications 1 à 10, caractérisé en ce que : a) on mélange à chaud le matériau divisé et les constituants du liant, b) le matériau est mis sous forme de granulés, c) on moule sous pression lesdits granulés dans des presses à injecter, telles qu'une presse pour injection de matières plastiques. 12. Method for producing an artificial target according to one of claims 1 to 10, characterized in that: a) the divided material and the constituents of the binder are hot mixed, b) the material is granulated , c) said granules are pressure molded in injection presses, such as a press for injecting plastics.
PCT/FR1995/001725 1994-12-23 1995-12-22 Novel environmentally friendly artificial target, in particular for clay pigeon shooting, and method for making same WO1996020388A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP95943269A EP0799405A1 (en) 1994-12-23 1995-12-22 Novel environmentally friendly artificial target, in particular for clay pigeon shooting, and method for making same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR94/15573 1994-12-23
FR9415573A FR2728673B1 (en) 1994-12-23 1994-12-23 NEW ARTIFICIAL TARGET, PARTICULARLY FOR THE BALL-TRAP GAME, NON-TOXIC TO THE ENVIRONMENT AND METHOD FOR PRODUCING SUCH A TARGET

Publications (1)

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WO1996020388A1 true WO1996020388A1 (en) 1996-07-04

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FR (1) FR2728673B1 (en)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10258686B3 (en) * 2002-12-13 2004-05-27 Lireko Disk for clay pigeon shooting comprises a mixture of a binder material made from montmorillonite clay minerals and a filler made from a finely ground non-plastic component and an environmentally friendly component
ES2275446A1 (en) * 2005-07-29 2007-06-01 Jesus Y Vicente Vazquez, S.L. Ecological throw plate with or without paint includes a colophony derivative mixed with calcium carbonate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666699A (en) * 1968-03-08 1972-05-30 Dow Chemical Co Compositions of polystyrene and polyethylene waxes
FR2316574A1 (en) * 1975-06-20 1977-01-28 Nippon Oil Co Ltd PERFECTED CLAY PIGEON
WO1992020635A1 (en) * 1991-05-10 1992-11-26 Ian Alistair Hall Disposable article and method of manufacture
WO1993001242A1 (en) * 1991-07-02 1993-01-21 Epron Industries Limited Hydrodegradable moulding materials
WO1994009339A1 (en) * 1992-10-15 1994-04-28 Green Clay Aps Shattering article, moulding composition and method of producing a shattering article

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666699A (en) * 1968-03-08 1972-05-30 Dow Chemical Co Compositions of polystyrene and polyethylene waxes
FR2316574A1 (en) * 1975-06-20 1977-01-28 Nippon Oil Co Ltd PERFECTED CLAY PIGEON
WO1992020635A1 (en) * 1991-05-10 1992-11-26 Ian Alistair Hall Disposable article and method of manufacture
WO1993001242A1 (en) * 1991-07-02 1993-01-21 Epron Industries Limited Hydrodegradable moulding materials
WO1994009339A1 (en) * 1992-10-15 1994-04-28 Green Clay Aps Shattering article, moulding composition and method of producing a shattering article

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10258686B3 (en) * 2002-12-13 2004-05-27 Lireko Disk for clay pigeon shooting comprises a mixture of a binder material made from montmorillonite clay minerals and a filler made from a finely ground non-plastic component and an environmentally friendly component
ES2275446A1 (en) * 2005-07-29 2007-06-01 Jesus Y Vicente Vazquez, S.L. Ecological throw plate with or without paint includes a colophony derivative mixed with calcium carbonate

Also Published As

Publication number Publication date
FR2728673A1 (en) 1996-06-28
FR2728673B1 (en) 1997-03-14
EP0799405A1 (en) 1997-10-08

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