JPH111406A - Fumigation composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition having improved adhesive property to the surface of substance for treatment by formulating an active ingredient to a spreader. SOLUTION: The composition is obtained by mixing (A) 1-60 wt.% of an active ingredient (a bioactive substance usually utilizing as a fumigant, e.g. pyrethroid insecticides such as acetamiprid and the like, thiram, diazinone, etc.), (B) 1-10 wt.%, preferably 1-5 wt.%, of a spreader (a nonionic surfactant, paraffin, etc., concretely a surfactant such as polyoxy-ethylenealkyl phenyl ether and the like, sodium polyacrylate, vinyl polyacetate, sorbite, paraffin, etc.), (C) an exthermic agent (a substance widely known in the past) and further, when necessary, bulking agents, caking additives and combustion-regulating agents.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a smoke composition.

[0002]

2. Description of the Related Art Smoke agents are mainly composed of exothermic agents and active ingredients such as insecticides, acaricides or fungicides, and are further mixed and kneaded by adding extenders, binders and the like as required. In this case, it is molded into granules or tablets as required. On the other hand, non-smoke-based insecticides, acaricides or fungicides are usually used in the form of wettable powders, emulsions, suspensions, aqueous solvents, flowables, powders or granules. There is also a dosage form which is common and contains a spreading agent in order to improve the adhesion of the object to be treated (for example, a wall surface, a pest or a plant) to the surface. However, it is not known to incorporate a spreading agent into the smoke agent according to the present invention.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a smoke composition having improved adhesion to the surface of an object to be treated.

[0004]

That is, the present invention is a smoke composition comprising an active ingredient and a spreading agent.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, as a spreading agent, those which are usually used for a spray liquid or a spray powder in order to improve the adhesion to the surface of an object to be treated can be used. , Nonionic surfactant, paraffin and the like. Specific examples include polyoxyethylene alkyl phenyl ether, polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene resin acid ester, sodium dialkyl sulfosuccinate, dodecylbenzene sulfone. Surfactants such as sodium acrylate, calcium lignin sulfonate, sodium polynaphthyl methane sulfonate, polyalkyl naphthyl methane sulfonate, alkyl trimethyl ammonium chloride, sodium polyacrylate, polyvinyl acetate, sorbit, Fins or 2 thereof,
Mixtures of more than one species can be exemplified. The addition amount of the spreading agent is 1 to
It is 10% by weight, preferably 1 to 5% by weight. If the addition amount is less than 1% by weight, adhesion cannot be imparted, and
Even when the amount exceeds 0% by weight, the effect does not particularly increase in proportion to the increase in the added amount.

In the present invention, as the active ingredient, all the active ingredients cannot be used because the fumigation agent is heated to 200 to 300 ° C. during fuming. A substance is used, and there is no particular limitation. Specifically, acetamiprid, imidacloprid, nitenpyram, hexthiazox, fluvalinate, tebufenpyrad, DDVP, marathon, BPM
C, quinoxaline, triflumizole, triazine,
Pyrethroid insecticides such as mepanipyrim, fenarimol, sulfur, iprodione, and arethrin, thiuram, diazinon, pyrifenox, procymidone, TPR,
Triadimefon, bifenthrin, etofenprox, fenpropatrin and the like. The content of the active ingredient depends on the type of active ingredient, activity, etc.,
Usually, it is used at 1 to 60% by weight.

The exothermic agent may be any one known in the art, and is not particularly limited. The exothermic agent is composed of a mixture of an oxidizing agent such as potassium chlorate and potassium nitrate and a burning agent such as starch and lactose. , Azodicarbonamide and the like, and nitrocellulose.

[0008] If necessary, a bulking agent, a binder, a combustion regulator and the like are added to the smoke composition of the present invention. As the filler, for example, clay, talc, diatomaceous earth, bentonite, kaolin and the like can be used. As a binder,
For example, carboxymethylcellulose, methylcellulose, ethylcellulose, hydroxypropylmethylcellulose, starch, polyvinyl alcohol and the like can be used.
As the combustion regulator, melamine or a derivative thereof, for example, industrial melamine, melamine nitrate. Melamine formalin resin and the like can be used.

The smoke agent is formulated by appropriately mixing the above-mentioned components, and the mixing ratio and the selection of chemicals are appropriately adjusted in accordance with the properties of the pesticide drug substance. In addition, the composition for smoking is
Usually, the above components are mixed and stirred by a crusher or the like, and then kneaded, and then granulated and compressed using a granulator or a tableting machine. Used in the form of

[0010]

EXAMPLES Next, the present invention will be described specifically with reference to Examples and Comparative Examples, but the present invention is not limited thereto. In Examples and Comparative Examples,% is
Indicate weight%.

Example 1 15% of acetamiprid, 14% of potassium chlorate, 15% of a binder, 54% of a clay, and 2% of a spreading agent [polyoxyethylene fatty acid ester (Approach B1 manufactured by Kao Corporation)] were taken in a grinder. The mixture was stirred and mixed with about 3 parts of water.
After adding 0 parts by weight (external number) and kneading, granulation was performed using a granulator. The obtained granules were dried at about 60 ° C. to obtain granules.

Example 2 Sodium dialkyl sulfosuccinate and polyoxyethylene alkyl phenyl ether 9:31 as spreading agents
Granules were produced in the same manner as in Example 1 except that the mixture (weight ratio) [manufactured by Tokuace Sankyo Co., Ltd.] was used.

Example 3 Granules were produced in the same manner as in Example 1 except that alkyltrimethylammonium chloride (manufactured by Satkat Kao Corporation) was used as a spreading agent.

Comparative Example 1 Granules were produced in the same manner as in Example 1 except that 56% of clay was used instead of 2% of the spreading agent.

Test Examples Acetamiprid was added to each of Examples 1 to 3 in which a spreading agent was added in an amount of 2%, and the smoke agent obtained from the comparative example using no spreading agent was used in a greenhouse having an area of 80 ft. (Nothing was cultivated), and smoked 10 g each per house in the evening. In the greenhouse, 5 petri dishes having a diameter of 9 cm were placed upwards per building in advance. The next day, about 14 hours later, the petri dish was collected, washed from the bottom with a water / acetonitrile (6/4) solution to extract the adhered drug substance, and the amount was quantified by high performance liquid chromatography. The results are shown in the following table. Table 1 Adhesion amount (μg / cm ² ) Comparative adhesion index Example 1 1.29 154 Example 2 1.09 130 Example 3 0.97 115 Comparative example 1 0.84 100

[0016]

[Effect of the Invention] The preparation to which the spreading agent is added has an increased amount of adhesion of 15 to 50% or more compared to the comparative example without addition.

Claims (2)

[Claims] 1. A smoking composition comprising an active ingredient and a spreading agent. 2. The smoke composition according to claim 1, wherein the amount of the spreading agent is 1 to 10% by weight.