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Indoor mite dispeller

A technology of repellant and dust mite, which is applied in the field of house dust mite repellent, can solve the problems such as difficult to use mite repellent, and achieve the effect of low risk and high practicability

Active Publication Date: 2008-04-16
DAINIHON JOCHUGIKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The applicant of the present application has previously disclosed that cinnamyl acetate, methyl cinnamate, etc. (Japanese Unexamined Publication No. 3-81202), piperonal, anisaldehyde, etc. (Japanese Unexamined Publication No. 3-90004), cinnamon oil (Japanese Unexamined Publication No. 3-90004), 3-123714 bulletin), but because the purpose at that time was acaricide, so if from the purpose of the present invention, it still has room for improvement
[0007] In addition, when these cinnamic acid derivatives are formulated into aqueous liquid preparations, it is usually necessary to mix a large amount of surfactants, and as a result, it has been found that the problem of suppressing the volatilization of cinnamic acid derivatives occurs, and it is difficult to use them in the above-mentioned liquid-absorbent core type. mite repellent

Method used

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  • Indoor mite dispeller
  • Indoor mite dispeller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] figure 1 It is a cross-sectional view of a diffuser which shows one form of the house dust mite repellent suitable for use in the present invention.

[0059] Prepared to contain 2.5% by weight of cinnamyl acetate, 0.1% by weight of piperonal, 2.0% by weight of laurylamine oxide, 3.0% by weight of polyoxyethylene hardened castor oil, 5.0% by weight of polyoxyethylene distyryl styrene The house dust mite repellent of the present invention comprising a base ether formaldehyde condensate, 7.0% by weight of ethanol, 0.08% by weight of citrus fragrance, 0.02% by weight of citric acid, and 80.3% by weight of purified water. In addition, the house dust mite repellent of this aqueous liquid preparation corresponds to a non-hazardous substance regulated by the Fire Services Act.

[0060] 130g of house dust mite expelling agent (1) of the present invention is filled in the transparent polyester container body 2, and the middle plug 4 of the rod-shaped felt liquid-absorbent core 3...

Embodiment 2

[0063] Based on Example 1, various house dust mite repellents shown in Table 1 were prepared, and the following items were evaluated. In addition, in the table, the abbreviated symbols of a surfactant and a solubilization stabilizer represent the following compounds.

[0064] Surfactant A: polyoxyethylene hardened castor oil

[0065] Surfactant B: laurylamine oxide

[0066] Surfactant C: polyoxyethylene lauryl ether

[0067] Solubilizing stabilizer a: polyoxyethylene distyryl phenyl ether formaldehyde condensate

[0068] Solubilizing stabilizer b: polyoxyethylene tristyryl phenyl ether

[0069] (1) Liquid properties of aqueous liquid preparations

[0070] The solubility at 25° C. and the stability over a period of time were examined, and the evaluations were shown as follows: ◯: no problem, △: slightly problematic, ×: unsuitable.

[0071] (2) Mite repelling efficacy test

[0072] Along one side of a carpet (100% acrylic) cut into 30cm×30cm, about 10,000 European house du...

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Abstract

To provide an indoor Tarsonemus sanguinarius repellent in an aqueous liquid agent form capable of exhibiting excellent repelling effect on Tyrophagus putrescentiae (Shrank), Dermatophagoides farinae, Tarseonemus floricolus Canestrim, Franzago, Cheyleteilla species, and the like, based on volatilization action of an acarid-repelling ingredient by using a cinnamic acid derivative having high safety to human beings and beasts as the acarid-repelling ingredient and having little danger for fire. This indoor Tarsonemus sanguinarius repellent in the aqueous liquid agent form comprises the cinnamic acid derivative as an acarid-repelling ingredient and comprises a polyaromatic ring type polyoxyalkylene ether as a solubilizing stabilizer. The repellent comprises, preferably, 0.5-4.0 wt.% cinnamic acid derivative, a surfactant in an amount of 0.5-1.5 times based on the amount of the cinnamic acid derivative, the polyaromatic ring type polyoxyalkylene ether in an amount of 1.0-2.5 times based on the amount of the cinnamic acid derivative, 3.0-12 wt.% lower alcohol and water.

Description

technical field [0001] The present invention relates to a house dust mite expelling agent. Background technique [0002] Recently, due to changes in the living environment, house dust mites such as acaroid mites, scorpion mites, and nematode mites have appeared in the house, causing not only unpleasant sensations, but also problems such as allergic asthma and rashes. [0003] Therefore, indoor acaricides for treating carpets, bedding, etc. have been sought, but because they are often used indoors in direct contact with the skin, it is necessary to develop a highly safe drug, and no appropriate control method has yet been established. Furthermore, it has gradually become clear that the dead bodies of cuticle mites that cause allergic asthma themselves also cause allergies. [0004] Against the backdrop of such a situation, people have searched for techniques to keep the dust mites away from people and patients without killing the dust mites in the house, and several proposal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/06A01N25/02A61L9/00A01N65/00
CPCY02A50/30
Inventor 市村由美子猪口佳浩中山幸治
Owner DAINIHON JOCHUGIKU CO LTD