Explosive composition for fireworks and method for...

C - Chemistry – Metallurgy – 06 – B

Patent

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C06B 25/18 (2006.01) C06B 25/22 (2006.01) C06B 25/28 (2006.01) C06B 25/38 (2006.01) C06C 15/00 (2006.01)

Patent

CA 2347637

A method for preparing a pyrotechnic composition which comprises preparing a composition in a gel form using nitrocellulose and a nitro compound other than nitrocellulose, adding an oxidizing agent, a combustible material and a color rendering agent to the composition, followed by mixing, forming the resultant mixture into a desired shape, and then drying; and a pyrotechnic composition obtainable by using the method. This method can be used for simplifying a production process while maintaining the effect of a star and a lance used in a pyrotechnic composition, particularly in a firework composition.

L'invention concerne un procédé de préparation d'une composition pyrotechnique qui consiste à préparer une composition sous forme de gel en utilisant le nitrocellulose et un autre composé azote qui n'est pas du nitrocellulose, à ajouter un oxydant, une substance combustible et un agent colorant, puis à mélanger le tout, à conférer au mélange la forme désirée et, finalement, à le sécher. L'invention concerne aussi une composition pyrotechnique pouvant être obtenue par ce procédé. Ce procédé peut être utilisé pour simplifier le processus de fabrication tout en maintenant l'effet d'"étoiles" et de "lances" utilisé dans des compositions pyrotechniques, notamment dans celles servant à faire des feux d'artifice.

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