JPS5827237B2 - inflammatory agent composition - Google Patents

Description

[Detailed description of the invention] TECHNICAL FIELD The present invention relates to a flame-starting composition.

More specifically, the present invention relates to a flame igniter composition that generates very little smoke and has a high luminous intensity.

The flaming side composition that is the object of the present invention is mainly used as a filling agent for flaming cylinders for signal use, etc., and generally includes:
Nitrates such as strontium nitrate and perchlorates such as potassium perchlorate are blended as coloring agents and oxidizing agents, and combustible materials such as wood flour, starch, and sulfur are further blended.

Since this flaming agent composition is a powder and has poor moldability, paraffin, heavy oil, vegetable oil, etc. in an amount of about 2 to 15 weight φ are usually blended as a binder (viscosity agent), and the flaming agent composition is forming things.

Since these binders are generally flammable, they also act as combustible materials.

A typical use of a flare tube in which a cylindrical container made of paper or plastic is filled with the above-mentioned flame-producing composition is as an emergency signal tube.

This signal tube is mainly used for ships, trains, and automobiles, and in all cases, it is ignited to produce a flame in an emergency, and is used to signal, communicate, warn, etc. to a distant place.

This is particularly effective for signaling at night or in tunnels.

A problem with flares used at night or for signaling purposes in tunnels is the smoke generated when the flare is ignited.

This smoke not only makes it difficult to see from a distance at night or inside a tunnel, but also can cause an accident, especially inside a tunnel.

Therefore, there is a great need for smokeless compositions or flame-producing compositions that generate less smoke.

Generally speaking, storage stability is a factor that determines the performance of a flare tube, but in terms of practical performance, issues include the intensity of the light generated (luminous intensity), the burning time, and the above-mentioned lack of smoke generation.

The intensity of the generated light is basically proportional to the ignition area, and the combustion time is proportional to the length of the flare tube and the length of the cylindrical filled chemical.

Therefore, when the amount of filled chemical is constant and the luminous intensity is important, the area of ignition is increased.

That is, it is sufficient to increase the diameter (drug diameter) of the filled drug, and if the burning time is important, the length of the filled drug (drug length) may be increased.

However, as an emergency signal tube, considering the reliability of operation in an emergency and compatibility with the signal tube holding device,
Fixed dimensions are often determined.

If the dimensions are the same, burning time may be considered important, but for signal tubes intended for use at night and in tunnels,
In many cases, strong light, that is, high luminous intensity, is required even if the combustion time is sacrificed a little.

Furthermore, in a signal tube, the total amount of light generated (relatively expressed, for example, as the product of luminous intensity and burning time) is of great significance.

Regardless of whether emphasis is placed on luminous intensity or burning time, the issue is the total amount of light generated, and it is natural that the greater the total amount, the better.

The present invention, in response to the above-mentioned demands, provides a flame retardant composition that generates less smoke, has a high luminous intensity, and also generates a large total amount of light. is the formula % formula % ~8. This is a flame retardant composition characterized in that it contains an aliphatic dibasic acid ester (n represents an integer of 4 to 10) as a binder.

That is, it is characterized in that a dibasic acid ester represented by a specific formula is used in place of paraffin, heavy oil, vegetable oil, etc. that have been conventionally used as a binder.

The dibasic acid ester used in the present invention is a viscous liquid, and examples include dioctyl succinate, diisodecyl succinate, dioctyl adipate, diisodecyl adipate, dioctyl azelaate, dibutyl sebacate,
Mention may be made of dioctyl sebacate.

Among these examples, diisodecyl adipate is most preferred for reasons such as luminous intensity upon ignition.

The amount of dibasic acid ester blended into the flame-starting composition of the present invention is not necessarily limited, but is generally selected from 2 to 15% by weight, similar to conventional binders.

From a practical point of view, it is usually selected within the range of 3 to 10 weight φ.

Typical flame igniting compositions envisaged by the present invention include those containing combustible materials such as wood flour, starch, and sulfur in addition to conventional nitrates and perchlorates, but are limited to these. It doesn't mean you can't do it.

One of the problems aimed at by the present invention, which is to create a flame-generating agent with little smoke, has already been solved to some extent by using polybutene as a binder (thickening agent) (Japanese Patent Publication No. 49-198
(See Publication No. 54).

However, the present invention solves one problem and at the same time solves the other problem (luminous intensity, total amount of light) by using a type of binder that could not be imagined with conventional technology. Practical value is a dog.

Next, formulation examples of the flaming side composition of the present invention, and examples and comparative examples showing the effects thereof will be shown, but these are not intended to limit the present invention.

Formulation example (weight cake) Strontium nitrate (70), potassium perchlorate (10
), sulfur (8), combustible materials such as wood flour and starch (7), and a binder (5) Example 1 Using diisodecyl adipate as a binder, a flammable composition was prepared by blending according to the above formulation example. Then, it was filled into a triple-wrap kraft paper cylinder (equivalent to a drug diameter of 3QM and a drug length of 200m) and burned.

The results are as follows.

Weight of filled composition: 211 Luminous intensity (Cd): 360 Smoke: Almost none Burning time: 10 minutes to 10 minutes 30 seconds Example 2 Compounded in the same manner as in Example 1 using dioctyl sebacate as a binder. , the results of filling and burning are as follows.

Weight of filled composition: 220g Luminous intensity (Cd): 300 Smoke: Almost none Burning time: 10 minutes to 10 minutes 30 seconds Comparative example Compounding and filling in the same manner as in Example 1 using polybutene as a binder, The results of combustion are as follows.

Weight of filled composition: 250g Luminous intensity (Cd): 200 Smoke: Almost none Burning time: 12 minutes to 12 minutes 30 seconds As is clear from the above Examples 1 and 2 and the comparative example, the invention Although the flame agent composition has a slightly shorter combustion time, it has a very high luminous intensity and produces almost no smoke.

Since the flame retardant silk or material using the binder of the present invention has a different density when filled, it takes up a larger volume than one using polybutene, and therefore has a smaller packed weight.

It is presumed that this is the reason why the combustion time is slightly shorter.

Furthermore, in order to compare the total amount of light generated, the product of the luminous intensity per weight (g) of the flaming composition and the burning time (average) was calculated to be 17.5% for Examples 1 and 2, respectively. 6 and 1
4.0, while in the comparative example it was 9.8, which shows that the flame-generating composition of the present invention is superior in terms of the total amount of light generated.

Claims (1)

[Claims] 1 Formula Cr1.1H2rT1 (COOCnH2n+1)
2 (However, m represents an integer from 2 to 8. n represents an integer from 4 to 10)
A flaming agent or composition comprising an aliphatic dibasic acid ester having the following as a binder. 2. The flaming composition according to claim 1, wherein the aliphatic dibasic acid ester is diisodecyl adipate.