EP0252803B1 - Pyrotechnische Zusammensetzungen zur Herstellung von farbigem Feuerwerk - Google Patents

Pyrotechnische Zusammensetzungen zur Herstellung von farbigem Feuerwerk Download PDF

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Publication number
EP0252803B1
EP0252803B1 EP19870401482 EP87401482A EP0252803B1 EP 0252803 B1 EP0252803 B1 EP 0252803B1 EP 19870401482 EP19870401482 EP 19870401482 EP 87401482 A EP87401482 A EP 87401482A EP 0252803 B1 EP0252803 B1 EP 0252803B1
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EP
European Patent Office
Prior art keywords
metal
copper
composition
pyrotechnic
fireworks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19870401482
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English (en)
French (fr)
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EP0252803A1 (de
Inventor
Jean-Louis Dumont
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Etienne LaCroix Tous Artifices SA
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Etienne LaCroix Tous Artifices SA
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B29/00—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B29/00—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate
    • C06B29/02—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal
    • C06B29/08—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal with an organic non-explosive or an organic non-thermic component
    • C06B29/10—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal with an organic non-explosive or an organic non-thermic component the component being a dye or a colouring agent
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B29/00—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate
    • C06B29/22—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate the salt being ammonium perchlorate
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C15/00—Pyrophoric compositions; Flints

Definitions

  • the present invention relates to the field of pyrotechnic mixtures or compositions producing colored fireworks.
  • Example 10 of this patent describes a composition containing 2% cobalt acetylacetonate which, in this case, is only used as a catalyst or combustion regulator, but does not produce any coloring effect, if only due to its concentration too low to exercise such a coloring function.
  • compositions are not entirely satisfactory in practice, because their flame color remains impure and they do not have a sufficient burning rate, which is very important in particular in the production of fireworks stars for bombs and candles or other colored devices.
  • potassium perchlorate, potassium and barium chlorates give very washed-out colors, on the other hand ammonium perchlorate gives a slightly purer color. But for the combustion speed to be sufficient, we have to add potassium perchlorate which strongly denatures the color. This phenomenon is particularly observed in the case of pyrotechnic compositions of blue color, based on copper.
  • the object of the present invention is precisely to remedy this drawback.
  • compositions which are the subject of the present invention have made it possible, by choosing a very specific metal derivative, namely acetylacetonate, to activate the combustion of the mixtures while retaining excellent color purity in the flame.
  • the first constituent of the composition of the invention is the oxidant which will advantageously be chosen from chlorates and perchlorates of alkali, alkaline-earth or even ammonium metals. We particularly prefer to use ammonium perchlorate which does not cause any disturbance in the color of the flame.
  • this oxidant provides chlorine which improves the color of the flame, in particular in pyrotechnic compositions based on copper, strontium or barium.
  • a halogen promoter in particular a chlorine or bromine promoter.
  • the compositions according to the invention may thus contain up to approximately 5% of such a halogen promoter, for example consisting of chlorinated inorganic or organic derivatives.
  • the second constituent of the composition according to the invention is the reducing agent which will generally be constituted by an organic reducing agent from the family of oses such as sorbitol, polyoxyolefins such as polyethylene glycol, as well as natural or synthetic resins.
  • a binder such as a gum or a resin.
  • the reducing agent consists of a resin, the latter can simultaneously play the role of reducing agent and binder.
  • the third essential constituent of the pyrotechnic compositions according to the invention is metallic acetylacetonate which can for example be obtained by reaction of metals, hydroxides or metallic salts, on acetylacetone.
  • the reducing couple + metallic acetylacetonate is involved in the pyrotechnic compositions of the invention at a level of 10 to 40% by weight. However, a minimum metal acetylacetonate content of approximately 3% by weight will always be maintained.
  • the AAC, sublimable product gives a high flame, without leaving residues, which constitutes a determining advantage in the case of torches and lances, where the slag deteriorates the color .
  • the gases are therefore rich in flame dye.
  • compositions for flames Ammonium perchlorate 70% Glucose 25% Copper acetylacetonate 5%
  • This latter type of composition has, as mentioned above, the advantage of not smoking and of not leaving residues.
  • the present invention cannot be limited to the particular embodiments described, of which it is perfectly possible to imagine numerous variant embodiments.
  • different metals such as aluminum, magnesium and titanium which further improve the brightness of the flame produced by the pyrotechnic compositions colored according to the 'invention.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Air Bags (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Claims (8)

  1. Verfahren zur Herstellung einer pyrotechnischen Zusammensetzung zur Herstellung von farbigem Feuerwerk, gekennzeichnet durch die Verwendung:
    - eines Oxidationsmittels,
    - eines organischen Reduktionsmittels aus der Klasse der Osen, wie Sorbit, aus der Klasse der Polyoxialkene, wie polyethylen-Glykol, wie auch natürliche oder synthetische Harze,
    - eines metallischen Acetylacetonats, dessen Metall ausgesucht wird aus Kupfer, Molybdän, Strontium, Barium, Kalzium, Lanthan und Zirkonium, wobei das metallische Acetylacetonat einen Mindestanteil von 3 Gewichtsprozent an der gesamten Zusammensetzung aufweist.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Metall des Acetylacetonats Kupfer ist.
  3. Verfahren nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß das Oxidationsmittel ein Chlorat oder ein Perchlorat eines Alkalimetalles, eines Erdalkalimetalles oder von Ammonium ist.
  4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß das Oxidationsmittel Ammoniumperchlorat ist.
  5. Verfahren nach einem der Ansprüche 1 bis 4, gekennzeichnet durch einen Halogen-Aktivator, insbesondere einen Chlor- oder Brom-Aktivator.
  6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet durch:
    Figure imgb0007
  7. Verfahren nach einem der Ansprüche 5 und 6, gekennzeichnet durch die zusätzliche Zugabe von höchstens etwa 5 Gewichtsprozent eines Chlor- oder Brom- Aktivators.
  8. Anwendung der Verfahren nach einem der Ansprüche 1 bis 7 in Signalfeuern und Feuerwerken, insbesondere für Sterne in Feuerwerksbomben, Wunderkerzen, bengalischen Feuern, Leuchtraketen und Fackeln.
EP19870401482 1986-07-08 1987-06-26 Pyrotechnische Zusammensetzungen zur Herstellung von farbigem Feuerwerk Expired - Lifetime EP0252803B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8609910 1986-07-08
FR8609910A FR2601358B1 (fr) 1986-07-08 1986-07-08 Compositions pyrotechniques colorees.

Publications (2)

Publication Number Publication Date
EP0252803A1 EP0252803A1 (de) 1988-01-13
EP0252803B1 true EP0252803B1 (de) 1992-03-18

Family

ID=9337191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870401482 Expired - Lifetime EP0252803B1 (de) 1986-07-08 1987-06-26 Pyrotechnische Zusammensetzungen zur Herstellung von farbigem Feuerwerk

Country Status (4)

Country Link
EP (1) EP0252803B1 (de)
DE (1) DE3777472D1 (de)
ES (1) ES2030087T3 (de)
FR (1) FR2601358B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100398974C (zh) * 2002-04-04 2008-07-02 石柏青 无污染安全焰花
DE102006030679A1 (de) * 2006-07-04 2008-01-10 Diehl Bgt Defence Gmbh & Co. Kg Pyrotechnischer Satz

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923610A (en) * 1956-04-21 1960-02-02 Ici Ltd Ammonium nitrate compositions
US3214304A (en) * 1963-03-20 1965-10-26 Thiokol Chemical Corp Gas-generating compositions containing coolants and methods for their use
US3492176A (en) * 1968-09-11 1970-01-27 T O Paine Ammonium perchlorate composite propellant containing an organic transitional metal chelate catalytic additive
US3945202A (en) * 1970-08-27 1976-03-23 Universal Propulsion Co. Rocket containing lead oxidizer salt-high density propellant
US3668026A (en) * 1970-12-14 1972-06-06 North American Rockwell Castable pyrotechnic colored smoke composition
US3690972A (en) * 1971-07-16 1972-09-12 Us Army Green flare composition

Also Published As

Publication number Publication date
FR2601358A1 (fr) 1988-01-15
FR2601358B1 (fr) 1991-09-27
EP0252803A1 (de) 1988-01-13
ES2030087T3 (es) 1992-10-16
DE3777472D1 (de) 1992-04-23

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