JP2990499B2 - Underwater sustained release putrefaction inhibitor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a sustained release rot inhibitor in water. More specifically, since bacteria that cause decay and those that are nutrients are present in water such as domestic wastewater and medical wastewater, putrefactive odor is generated over time from the drainage channel. The present invention relates to a sustained-release rot inhibitor in water, which is useful for preventing the occurrence of rust and has a long lasting effect.

[0002]

2. Description of the Related Art Conventionally, traps have been installed as a countermeasure to prevent the generation of putrefaction odor from the drainage channel as described above. However, a sufficient effect cannot be obtained by itself. It was necessary to spray the water-soluble antibacterial agent and the fragrance into the drainage channel regularly or continuously.

[0003]

However, where wastewater continuously flows out, most of the antibacterial agent and fragrance flow out, and the effect cannot be maintained. Further, continuous application of the antibacterial agent has a problem that a new device is required.

[0004]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies with the aim of obtaining a composition suitable for maintaining a long-term anti-rot effect in a drain passage, and have found that an antibacterial agent and a hydraulic base In particular, it has been found that by installing a molded body made of calcined gypsum as a water-based sustained-release decay inhibitor, a good rot-preventing effect can be maintained for a long time by installing it in a drainage channel such as a drain trap. The present inventors have found that the antiseptic agent can be obtained by pouring a slurry obtained by mixing an antibacterial agent, a hydraulic base and water into a mold and solidifying the slurry. That is, the present invention provides one or more antibacterial agents (A) selected from the group consisting of cationic surfactant antibacterial agents (a), amphoteric surfactant antibacterial agents (b) and iodine antibacterial agents (c). And a gypsum, a hydraulic lime, a hydraulic base (B) selected from the group consisting of Portland cement and magnesia cement,
(A) / (B) a sustained-release rot inhibitor in water having a weight ratio of 1/99 to 50/50; and a slurry comprising an antibacterial agent (A), a hydraulic base (B) and water. It is an underwater sustained-release decay inhibitor that is poured into a mold and solidified.

In the present invention, the antibacterial agent (A) includes a cationic surfactant antibacterial agent (a), an amphoteric surfactant antibacterial agent (b) and an iodine antibacterial agent (c).
Examples of the cationic surfactant antibacterial agent (a) include, for example, benzalkonium salt, didecyldimethylammonium salt,
Examples include a benzethonium salt, and examples of the salt include a halogen atom and an organic acid residue, and are not particularly limited. Examples of the amphoteric surfactant antibacterial agent (b) include alkyl polyaminoethyl glycine and the like, and salts thereof. Examples of the iodine-based antibacterial agent (c) include iodine, povidone-iodine, nonoxynol-iodine, and phenoxyiodide. Each of these antibacterial agents can be used alone,
More than one species can be used in combination. Preferred as these antibacterial agents (A) are cationic surfactant-based antibacterial agents (A).

[0006] The hydraulic base (B) in the present invention becomes a slurry when mixed with water, and is not particularly limited as long as it is a substance showing curability after standing for a certain period of time. Magnesia cement and the like. Of these, gypsum is preferred, and particularly preferred is calcined gypsum (calcium sulfate 0.5
Hydrate).

The ratio (A) / (B) (weight ratio; the weight of the active ingredient of the antibacterial agent) is usually 1/99 to 50/50, preferably 5/95 to 35/65. If the ratio of (A) is smaller than 1/99, the rot preventing effect is small, and if the ratio of (A) is larger than 50/50, the shape retention of the molded article becomes insufficient.

[0008] In addition to the antibacterial agent (A) and the hydraulic base (B), urea (C) can be used as the sustained-release rot inhibitor in water of the present invention.
With a weight ratio of (C) / [total of (A) and (B)] of 0.
Addition in the range of 01 to 0.6 makes it easier to control the sustained release (duration) of the antiseptic into water. If the weight ratio of (C) / [total of (A) and (B)] is less than 0.01, it is difficult to control the sustained release, and the weight ratio of 0.
If it exceeds 6, molding becomes difficult.

[0009] The sustained-release rot inhibitor in water of the present invention includes:
In addition to (A), (B) and (C), an alcohol (D) having 1 to 20 carbon atoms may be further contained, if necessary, for the purpose of uniformly mixing the antibacterial agent (A). Examples of the alcohols having 1 to 20 carbon atoms (D) include those having one hydroxyl group (such as methanol, ethanol, butanol, cyclohexanol, and lauryl alcohol), and glycols having two hydroxyl groups (ethylene glycol, propylene glycol). , 1,4-butanediol, 1,6-hexanediol, diethylene glycol, neopentyl glycol, etc.) Triols having three hydroxyl groups (glycerin, trimethylolpropane, trimethylolethane, hexanetriol, triethanolamine, etc.) One having four hydroxyl groups (for example, pentaerythritol, methylglycoside, diglycerin, etc.);
One having two hydroxyl groups (such as adonitol, arabitol, xylitol), one having six or more hydroxyl groups [polyglycerin such as triglycerin and tetraglycerin; polypentaerythritol such as dipentaerythritol and tripentaerythritol; tetrakis (hydroxy A cycloalkane polyol such as methyl) cyclohexanol, etc., which is liquid at room temperature and has 4 to 2 carbon atoms.
0 low molecular weight polyethylene glycol and the like.
Preferred alcohols (D) are ethanol,
Isopropanol and glycols.

[0010] The sustained-release decay-in-water agent of the present invention may optionally contain additives such as coloring agents and fragrances. Examples of the colorant include a blue or green dye and a pigment for giving a refreshing feeling of running water.
ueG, Green No. 3, Blue No. 1, Brilliant Blue-FC
F and the like. As the fragrance, those commonly used may be used, and examples thereof include borneol, menthol, camphor, terpineol, and paradichlorobenzol. The colorant is usually 0 to 5% by weight, preferably 0 to 1% by weight, and the flavor is usually 0 to 10% by weight, preferably 0 to 5% by weight, based on the sustained release rot inhibitor in water.

As a method for producing the sustained-release decay-in-water agent of the present invention, a mixed molding method can be mentioned. In the mixing molding method, for example, an antibacterial agent (A) and, if necessary, (C), a coloring agent, a fragrance and other additives are first added to water, and after sufficient mixing,
Next, a hydraulic base (B) is added to form a slurry, and the slurry is poured into a fixed mold, solidified, and then removed from the mold. However, the order of mixing is not limited to this.

The amount of water (including the water in the system contained in the antibacterial agent (A)) is (A) / (B) (weight ratio) of 1/99.
And usually 50/50 to 60/40, preferably 1 in weight ratio of water / [total of (A) and (B)].
The amount is in the range of 5/85 to 40/60. The amount of water is 1
If it is less than 0/90, it is difficult to form a slurry, and if it exceeds 60/40, it is difficult to solidify, and in any case, a good molded product cannot be obtained. The temperature is not particularly limited, and it may be left at room temperature or may be heated to promote solidification. The solidification time is
Usually 30 minutes to 2 hours. As a device used for mixing, a mixer, a stirrer, a kneader, or the like used in a normal mixing step can be used, and is not particularly limited.

[0013] The shape of the sustained-release decay-in-water agent of the present invention may be rod-like, angular, or spherical, and may be prepared according to the shape of the drainage flow channel. Further, after the production, processing such as cutting, polishing, and pulverization into an arbitrary shape may be performed.

[0014]

The present invention will be further described below with reference to examples and comparative examples, but the present invention is not limited to these examples.

Example 1 150 g of water and 80% of didecyldimethylammonium chloride
100 g of the solution was placed in a 1 L beaker, stirred with a glass rod, and uniformly dissolved. Thereafter, 250 g of calcined gypsum was added and stirred well with a glass rod to form a uniform slurry.
pour 100g into a plastic container of about 2
It was left for a time to solidify. After solidification, it was taken out of the plastic container to produce the putrefaction inhibitor of the present invention.

Examples 2 and 3 and Comparative Examples 1 and 2 Antiseptic agents of Examples 2 and 3 and Comparative Examples 1 and 2 were produced in the same manner as in Example 1 at the compounding ratios shown in Table 1. However, with the blending number of Comparative Example 2, it did not solidify even after 2 hours or more after being poured into the plastic container.

[0017]

[Table 1]

(A) -1: Didecyldimethylammonium chloride aqueous solution (active ingredient 80%) (A) -2: Alkyldiaminoethylglycine hydrochloride aqueous solution (active ingredient 40%) (B): Plaster of Paris (C): Urea

Test Example Each one of the cylindrical molded products obtained in Examples 1 to 3 and Comparative Example 1 was placed in a dentist's medical drainage trap, and was actually used. Was determined. The determination of putrefaction odor was carried out by 10 persons, and each was judged based on whether or not they felt putrefaction odor.

[0020]

Table 2 −−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−− 10 days later 20 days later 30 days later −−−−−−−− Example 1 0 1 1 Example 2 0 1 0 Example 3 0 2 1 Comparative example 1 10 10 10 -------------------------------

As is clear from Table 2, it was found that the sustained-release decay-in-water agent of the present invention can suppress the generation of putrefaction odor for 30 days.

[0022]

By installing the underwater sustained-release decay inhibitor of the present invention in a drainage channel such as a drainage trap, it is possible to maintain the effect of preventing decay of drainage for a long period of time. In particular, by installing the putrefaction inhibitor of the present invention in a trap in which organic substances remain, such as a dentist's medical drainage trap, it is possible to suppress the generation of putrid odor, which has been a problem in the past, for a long period of time. In addition, by placing it in the sink and drain of a sink for home and business use or a triangular corner, not only odor but also slime can be prevented. In addition, vending machines that pour coffee, juice, tea, etc. into paper cups, etc., are installed in a waste liquid channel or a waste liquid reservoir into which overflowing or dripping juice flows into, so that putrefaction odor and slime sticking can be obtained. It will also prevent it.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-8-157305 (JP, A) JP-A-8-198707 (JP, A) JP-A-8-268824 (JP, A) JP-A-5-1987 17983 (JP, A) JP-A-6-256052 (JP, A) JP-A-63-34132 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01N 25/08 A01N 25 / 34 A01N 33/04 A01N 59/12 CAPLUS (STN) REGISTRY (STN) WPIDS (STN)

Claims (7)

(57) [Claims] 1. One or more antibacterial agents (A) selected from the group consisting of cationic surfactant antibacterial agents (a), amphoteric surfactant antibacterial agents (b) and iodine antibacterial agents (c).
And a hydraulic base (B) selected from the group consisting of gypsum, hydraulic lime, Portland cement and magnesia cement, wherein (A) / (B) (weight ratio) is 1/99 to 50 /. 50 sustained-release spoilage inhibitor in water. 2. The sustained release rot inhibitor in water according to claim 1, wherein the hydraulic base (B) is calcined gypsum. 3. It further contains urea (C), wherein (C) /
The weight ratio of [the sum of (A) and (B)] is 0.01 to 0.6.
3. The sustained-release putrefaction inhibitor in water according to claim 1 or 2. 4. The sustained release rot inhibitor in water according to claim 1, which is for preventing decay of a medical drain trap. 5. One or more antibacterial agents (A) selected from the group consisting of cationic surfactant antibacterial agents (a), amphoteric surfactant antibacterial agents (b) and iodine antibacterial agents (c), An underwater sustained-release putrefaction inhibitor prepared by pouring a slurry comprising the hydraulic base (B) and water into a mold and solidifying the slurry. 6. The sustained release rot inhibitor in water according to claim 5, wherein the hydraulic base (B) is calcined gypsum. 7. The sustained release rot inhibitor in water according to claim 5, wherein the slurry further contains urea (C).