JPS5841791A - Firework composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a composition for fireworks, and it is an object of the present invention to provide a composition for fireworks that generates a gentle flame of a desired color for a long period of time.

Conventional firework compositions are composed of the compositions shown below.

Medium Oxidizing agent: Potassium salt, potassium perchlorate,
Ammonium salt, hypersalt/hydrogen acid ammonium, barium nitrate, Misaki (11) Combustion aid...Cera, li powder, charcoal powder, natural resin powder, starch, wood powder, antimony trisulfide, sulfur (! lit Flame coloring agent: Calcium□, chromium, co/glut, sodium, copper, strontium, barium or their oxides, salt Qψ Sparking agent::fNium powder, Magnesium powder, Titanium powder, Iron These compositions, such as powders or alloy powders of these powders, can be powdered to paper/paper or vinyl chloride/4if%, or these compositions can be mixed with flammable solvents such as amyl acetate. A solution in which celluloid cape is dissolved or a water-soluble glue agent is appropriately added, kneaded, applied to a predetermined base material, and then dried to obtain toy fireworks.

However, when a firework made from the above composition is ignited, it produces a large amount of smoke at the same time as it develops color, and also generates a strange odor, toxic gas, and scatters combustion residue, making it unsuitable for use as toy fireworks. It wasn't something.

Recently, as an improvement on this, it has been made mainly of nitrocellulose T-,
A composition for fireworks in which a flame coloring agent, a sparking agent, and an adhesive are mixed is proposed in Japanese Patent Application Laid-open No. 156-22698, and a mixture of barium nitrate and iron powder is added to A composition for fireworks to which umum powder is added has been proposed. These compositions emit relatively little smoke, bad odor, and harmful gas when burned, but their combustibility is still rapid and a small amount of residue is scattered, so they cannot be ignited and used indoors. It is difficult to do. Furthermore, the burning time of unit-sized fireworks is extremely short, and especially those using nitrocellulose are not suitable for use as ornamental fireworks.

The present invention has been made in view of the current situation, and as a result of extensive research, we have discovered a composition for fireworks that remains beautiful for a long time and generates a gentle flame. That is, the present invention is characterized in that either one or both of a flame coloring agent and a sparking agent are added and mixed with metaldehyde.

The reason why metaldehyde is used as the main ingredient in the present invention is that metaldehyde is in the form of acicular powder at room temperature, and about 1
Because fireworks heat up at 15°C, they are extremely easy to handle when manufacturing fireworks, and they can be stored for a long time because they do not evaporate when stored. Furthermore, when used as an oxidizing agent, it has a very low flash point, so it has good ignitability, and it is safe because it will not spontaneously ignite or explode. Furthermore, when burned, it generates a gentle flame for a long time in combination with a flame coloring agent that produces a violet color, so it can provide an excellent ornamental effect with durability.

In the present invention, flame coloring agents include, for example, chromium, co/metal, na) V-ram, and strontium.

One or more selected from barium, copper, potassium □, lithium, or oxides or chlorides of these metals are used.

In addition, as a sparking agent, aluonium powder, magnesium powder,
One or more types selected from titanium powder, iron powder, or alloy powder of these metals are used.

In the present invention, an oxidizing agent such as potassium chlorate may preferably be added, although not necessarily metaldehyde.

5- The solvent for dissolving the metaldehyde of the present invention is, for example, alcohol such as ethyl alcohol or a hot melting agent.
Rough-in, stearin ai, lauric acid, oleic acid, etc. may be added.

Next, embodiments of the present invention will be explained.

Example (1) Metaldehyde 80wt% magnesium
10 # (80-100 meters, full text) Magnarium 51 Boron Sand 5I The above set of precepts! When I solidified it in a reply and ignited it, countless □
Sparks are generated radially in all directions as the combustion occurs.1. It had a beautiful appearance. Furthermore, there was no residual burning method.

Example (2) Metaldehyde 75wt Thialuminium (
120 Me, Shu complete) 51 Magnalium
18I Charcoal 2I6- The above composition was pressed to solidify and ignited.
Countless sparks were generated as it burned, and the sparks split at the tip, revealing a yellowish ray of flame within them.

Example (3) Metaldehyde 95-w1% sodium oxalate 51 When the above composition was pressed to solidify and ignited,
As it burned, it produced wonderful sparks that were almost golden in color.

Example (4) Metaldehyde s o vt% copper sulfate
10 I Copper oxalate 8 # Soy carbonate / 21 The above composition was pressed, solidified, and ignited. Initially, back-colored sparks were generated, but the color soon changed to green.

Example (5) Metaldehyde 70 yt Strontium chloride 15 wt% Magnesium powder (80-2
15# The above composition was pressed and solidified to obtain toy fireworks. When any firework was ignited, it produced flickering sparks, the outside of the flame was bright red, the center was yellow, and the bottom part was pale blue. 1-1 It was smokeless, had no bad odor, and did not scatter any residue.

Example (6) Metaldehyde 79 Wt 1 Lithium carbonate 91 Strontium chloride 71 Celluloid (dissolved in ethyl acetate) 5# Kneaded with celluloid solution, 4 ms thick on iron wire.
A toy rod-shaped firework was obtained by applying the mixture to When this firework was ignited, it emitted a dark pink color, was smokeless, had no bad odor, and did not scatter any residue.

Example (7) Metaldehyde 69mat1 nograldehyde lOl oxalic acid no/
15 # Alonium powder l # Knead the above composition with a glue agent and spread it on a paperboard to a thickness of 3
The toy fireworks were prepared by painting on a piece of paper and cutting it into pieces of 15cm wide and 5cm long. When this firework was ignited, it produced a yellow flame with dancing sparks, and was smokeless, odorless, and did not scatter any residue.

Example (8) Metaldehyde 75yt96 Barium nitrate 3I Copper oxalate lo l Stearic acid 71 The above composition was heated and kneaded to obtain a toy firework having a cylindrical body with a thickness of 6 cm and a diameter of 15 squares. When this firework was ignited, it produced green flames and bright sparks characteristic of titanium alloys. 9- It was smokeless, had no bad odor, and did not scatter any residue.

The composition for fireworks of the present invention has the following effects.

(1) It generates a flame with a desired cypress-like color and burns for a long time, creating an elegant atmosphere and having excellent ornamental properties.

(2) Since it is not dangerous, it can be safely handled even by children and can be used indoors.

(3) It is smokeless and generates very little odor or toxic gas. (4) It is safe as it does not scatter residue and pollute the surrounding area.

Applicant's agent Patent attorney Takehiko Suzue10- Commissioner of the Japan Patent Office Shima 1) Haruki Tono1. Indication of the case Japanese Patent Application No. 1983-136254 2, Name of the invention: Composition for fireworks 3, Person making the amendment Relationship to the case Patent applicant Shintomo Kaneko 4, Agent 5, Voluntary amendment 7, Contents of the amendment ( 1) On page 6 of the specification, lines 1!14 to 15, the statement ``There was no combustion residue.'' is corrected to ``The combustion residue did not scatter.''

(21, page 7, lines 10 and 17, “sparks”
I corrected myself with a certain ``flame.''

Claims (4)

[Claims] (1) A composition for fireworks, characterized in that either one or both of a flame coloring agent and a sparking agent are added and mixed with metaltehyde. (2) The flame coloring agent consists of at least 41 species selected from chromium, sodium, strontium, barium, antimony, copper, potassium, lithium, or oxides or chlorides of these metals. The composition for fireworks according to claim 1, characterized in that (3) Aluminum powder, magnesium powder as a sparking agent,
The composition for fireworks according to claim 1, characterized in that it consists of at least tat selected from titanium powder, iron powder, or alloy powder of these metals. (4) Metaldehyde 30-99 weight - 1 flame coloring agent 6
01i amount less than a whisper, spark agent 50 weight from Yu Miyu