JPS61200188A - Termiteproofing treatment of trough - Google Patents

Abstract

PURPOSE:To carry out perfect termiteproofing treatment of trough in which underground cables are o be laid, by jointing between troughs using a sealant with which specific amount of termiteproof active ingredient has been admixed. CONSTITUTION:The objective treatment can be accomplished by jointing between troughs using a sealant with which 0.1-10wt.% of termiteproof active ingredient [e.g., an organophosphorus one (i.e., chlorpyrifos, tetrchlorvinfos, pyridaphenthione, etc.) copper naphthenate] has been admixed. The amounts to be admixed are pref. such as to be 1-2wt.% and 3-5wt.%, for organophosphorus-based one and for copper naphthenate, respectively. EFFECT:Free from any problem of environmental pollution caused by release of the above active ingredient due to rain, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for ant-proofing a trough in which an underground cape LV is buried.

[Conventional technology]

Damage caused by dirt is becoming more and more severe every year, and damage to underground cables inside troughs is a major problem in industry, as well as damage to general buildings. For this reason, termite-proofing treatment for troughs in which communication cables and the like are buried is carried out by spraying an emulsion containing an effective termite-controlling ingredient on the soil inside the trough, or by mixing a powder or the like.

[Problems to be solved by the invention] However, with the conventional treatment method using emulsion powder, it is difficult to achieve a uniform treatment and it is difficult to completely prevent termites, especially when they invade into the troughs from the joints between the troughs. It had the disadvantage that there was a lot of damage caused by white ants. There was also concern about environmental pollution caused by the dissemination of effective anti-termite ingredients through rainwater, etc.

[Means for solving problems]

As a result of extensive research into termite-proofing treatments for these troughs, the present inventor found that if the joints between the troughs are bonded using a sealant containing an effective anti-termite ingredient, the cables within the troughs can be completely prevented from being damaged by termites. The present invention was completed based on this finding.

The present invention relates to a method for treating troughs against termites, which comprises joining troughs using a sealant containing 0.1 to 10 M'j of a termite-prevention active ingredient i in an amount of 1%.

That is, an appropriate amount of the termite-preventing active ingredient is mixed into the sea fund, and the trough-to-trough joints are filled or piled up without any gaps. This sealant contains the termite-preventing active ingredient as described above.

It gradually solidifies after soul treatment and becomes a rubber-like elastic body after a few days.
This sealant prevents dirt from entering through the gaps between the joints, and because it is water resistant, there is no rumor that the active ingredient will prevent termites from being exposed to rainwater.

It is effective in terms of conservation of sound quality, and because it has elasticity, it can be easily removed by sliding the trough. It can safely withstand long-term use by preventing the formation of lll~.

The sealant used in the present invention is metal gafnu,
Weather-resistant, commercially available for sun protection such as concrete,
It has excellent heat resistance and cold resistance, and examples of these five types include clear materials such as silicone, Akutsuru, and urethane-based materials.

Active anti-termite ingredients include organic phosphorus compounds such as chlorpyrifos, phoxis, tetofuchlorvinphos, pyridafention, and copper naphthenate.

Known anti-termite active ingredients are used, and the addition ratio is such that a minimum amount of 0.1 has a negative effect on the elasticity in order to provide anti-termite performance. For this reason, organic liquium-based termite-preventing active ingredients are 1 to 2% by weight, and copper naphthenate is 5 to 5% by weight.
is desirable.

The sealant of the present invention can be obtained by dissolving the termite-preventing active ingredient as it is if it is liquid at room temperature, by heating and dissolving it if it is solid at room temperature, or by dissolving it in a solvent such as Kijiroll and then mixing it with the sealant using a normal mixer. It will be done.

Example Examples of formulations and test examples based on the present invention are shown below.

Combination example: 100 parts of commercially available Clear Thai 1 Silicone Seasoning (manufactured by -Imm Rifdyne Co., Ltd.), Chlorubi L? ho71
．． 5 parts to give 1.48% by weight as an anti-termite active ingredient.
Example of a test for preparing a sealant of the present invention containing: Two troughs each having a length of 1 m were used, and the joints were joined by approximately 200 y of sealant of the present invention listed in the formulation example. Also, on both sides of the trough, apply soil mixed with termiticide to a thickness of 2 (II#c).
- It was hardened with an assimilate to prevent the invasion of white ants.

Inside this trough, black pine sapwood (30X30X 350
M) was placed near the nest of Japanese termites, and for comparison, similar black pine sapwood was placed outside the trough as an ant-attracting tree, and the presence or absence of feeding damage caused by termites was detected. .

As a result, the black pine sapwood placed outside the trough was
There had already been some feeding damage during the period, but the black pine sapwood placed in the trough remained free of feeding damage even after 6 months.

〔Effect of the invention〕

Claims (1)

[Claims] A method for treating troughs against termites, which comprises joining troughs using a sealant containing 0.1 to 10% by weight of an active ingredient.