JP2772768B2 - Water slowly soluble putrefaction inhibitor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gradually soluble water rot inhibitor. More specifically, bacteria that cause putrefaction and nutrients in the water such as domestic wastewater and medical wastewater emit putrefactive odor from the drainage passage over time. The present invention relates to a water-slowly soluble putrefaction inhibitor useful for preventing generation of rust.

[0002]

2. Description of the Related Art Conventionally, a trap has been installed as a measure to prevent the generation of putrefaction odor from the drainage flow path as described above, but since it is not sufficient to obtain a sufficient effect by itself, a water trap is required. It was necessary to spray the germicide or fragrance periodically or continuously in the drainage channel.

[0003]

However, where the wastewater continuously flows, most of the germicides and fragrances flow out, and the effect cannot be maintained. In addition, there is a problem that continuous application of a germicide requires a new device.

[0004]

Means for Solving the Problems The present inventors have conducted intensive studies with the aim of obtaining a composition suitable for maintaining a long-term rot preventing effect in a drain passage, and as a result, a water disinfectant containing a disinfectant has been found. It has been found that by installing a molded body of a soluble base in a drainage flow path such as a drainage trap, a good rot preventing effect is maintained for a long time, and the present invention has been achieved.

In the present invention, the fungicide (A) is not particularly limited as long as it exhibits an effect of preventing organic substances from being spoiled by disinfection in water, but is preferably a cationic surfactant or an amphoteric surfactant. Examples thereof include those having a bactericidal effect and iodine-based bactericides. Examples of the bactericidal cationic surfactant include benzalkonium chloride,
Didecyldimethylammonium chloride, benzethonium chloride and the like can be mentioned. Examples of the amphoteric surfactant having a bactericidal effect include alkyl polyaminoethyl glycine, and salts thereof. Examples of the iodine-based fungicide include iodine, povidone iodide, nonoxynol iodide, phenoxy iodide and the like. Particularly preferred among these are cationic surfactants. Although a cationic surfactant and an amphoteric surfactant may be used in combination, an iodine-based germicide decreases its effect when used together with these surfactant-based germicides, so it is better to use it alone.

In the present invention, the slowly water-soluble base (B) represented by the following general formula (1) has a moldability at a melting point of 45 ° C. or higher, is not easily deformed, and has a slow water solubility. No restrictions. Here, the degree of slow water solubility of (B) is preferably such that 100 g of water is normally dissolved in normal temperature water in at least 2 weeks and at most 3 months. General formula Z [(CH ₂ CH ₂ O) _m (YO) _n H] ₂ (1) (where Z is a residue of a compound having a divalent hydroxy group; Y is M is an integer of 100 to 600, n is 1 to 3
It is an integer of 00. )

Specific examples of the compound constituting the residue of the compound having a divalent hydroxy group of Z include, for example, aliphatic glycols (propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, 1,3- Butanediol, 1,4-butanediol, 2,3-butanediol, 1,5-pentanediol, 1,6-hexanediol, neopentyl glycol, etc.).

[0008]

[0009]

Further, alkylene oxide (propylene oxide and the like) adducts of these alcohols may be mentioned. When a plurality of alkylene oxides are added, random addition or block addition may be used.

Among the compounds having a divalent hydroxyl group, aliphatic diols are preferred. m is usually an integer of 100 to 600, preferably 300 to 500. n is usually an integer of 1 to 300, preferably 20 to 1
00. If m exceeds the upper limit, the reactivity with (YO) becomes poor, and it becomes difficult to obtain a compound having the intended performance. If n exceeds the upper limit, the compound becomes insoluble in water and does not exhibit a solubilizing effect. Y is -50 alkyl groups, particularly preferred are those in which R has 6 carbon atoms.
~ 18 alkyl groups. 1 to 8 m and 1 to 8 n may be the same or different. In the general formula (1), m (CH ₂ CH ₂ O) and n (Y
O) may be combined in any order, and may be combined randomly or in blocks. Preferably, (CH ₂ CH ₂ O) is added to the hydroxyl group-containing compound, and further (YO) is added.

The molecular weight of the compound represented by the general formula (1) is generally 500 to 300,000, preferably 1,000.
0 to 40,000.

The weight ratio (A) / (B) of (A) and (B) is usually 3/97 to 30/70, preferably 5/95 to 20.
/ 80. When the proportion of (A) is smaller than 3/97, the rot preventing effect is small, and when the proportion of (A) is larger than 30/70, the shape retention is insufficient.

The composition of the present invention may further contain, if necessary, water and / or a compound (C) selected from alcohols having 1 to 20 carbon atoms. Among the (C) alcohols having 1 to 20 carbon atoms, those having one hydroxyl group (e.g., methanol, ethanol, butanol, cyclohexanol, lauryl alcohol), 2 Glycols having two hydroxyl groups (ethylene glycol, propylene glycol, 1,4-butanediol, 1,6-hexanediol, diethylene glycol, neopentyl glycol, etc.), 3 Triols having a hydroxyl group (glycerin, trimethylolpropane, trimethylol-
Those having four hydroxyl groups (such as luethane, hexanetriol, and triethanolamine) (for example, pentaerythritol, methylglycoside, diglycerin, etc.),
Having two hydroxyl groups (Adonitol, Arabito
, Xylitol, etc.), those having 6 or more hydroxyl groups [polyglycerin such as triglycerin and tetraglycerin; polypentaerythritol such as dipentaerythritol and tripentaerythritol; tetrakis Cycloalkanepolyols such as (hydroxymethyl) cyclohexanol], which are liquid at room temperature and have 4 to 2 carbon atoms.
0 low molecular weight polyethylene glycol and the like.
Preferred among water and / or these alcohols are ethanol, isopropanol and glycols.

The weight ratio (C) / {(A) + (B)} of the total weight of (A) and (B) to (C) is usually 20/80 to 0 /
100, preferably 10/90 to 0/100. 2
If the ratio of (C) is larger than 0/80, the shape retention becomes insufficient.

The composition of the present invention may contain a colorant, a fragrance and other additives as necessary. Examples of the colorant include a blue or green dye and a pigment for giving a refreshing sensation in running water. Specifically, Turge Blue
G, green No. 3, blue No. 1, brilliant blue FCF and the like. As the fragrance, those usually used may be used, for example, borneol, menthol, camphor,
Terpineol, paradichlorobenzol and the like. The colorant is usually 0 to 0 based on the water-soluble rotproofing agent.
5% by weight, preferably 0-1% by weight;
0% by weight, preferably 0 to 5% by weight.

As a method for producing the water-slowly soluble putrefaction inhibitor of the present invention, there is a mixed molding method. In the mixing molding method, for example, a water-soluble base (B) is heated and dissolved, a bactericide (A) is added to uniformly disperse or dissolve, and if necessary, (C), a coloring agent, a fragrance and other additives are further added. The mixture is sufficiently mixed, cooled, and molded into a predetermined shape. However, a powdered material can be mixed and molded. As a device used for mixing, a mixer, a stirrer, a kneader or the like used in a usual dissolution mixing step can be used, and is not particularly limited.

The water-slowly soluble rot inhibitor of the present invention may be in the form of a rod, a square, or a sphere, and may be prepared according to the shape of the drainage flow channel.

[0019]

EXAMPLES The present invention will be further described with reference to examples below, but the present invention is not limited to these examples. Parts in the examples are parts by weight. Examples 1 to 3 The following components (A) and (B) were uniformly dissolved and mixed, and 100 g each was poured into a cylindrical mold having a diameter of 5 cm, cooled, solidified, and taken out. (Prescription of Example 1) Ingredient of (A): 10 parts of didenyldimethylammonium chloride solution (80% of active ingredient) Ingredient of (B): Ethylene oxide (80% by weight) of polypropylene glycol (number average molecular weight 3250) ) The adduct of an α-olefin oxide having 12 or 14 carbon atoms (1
(0% by weight) 90 parts of adduct (prescription of Example 2) Component of (A): 50% aqueous solution of benzalkonium chloride
20 parts of component (B): α-olefin oxide (12,14 carbon atoms) of ethylene oxide (80% by weight) adduct of polypropylene glycol (number average molecular weight 3250)
0 parts by weight) 80 parts of adduct (prescription of Example 3) Component of (A): alkyldiaminoethylglycine hydrochloride 4
20 parts of 0% aqueous solution 20 parts Component (B): α-olefin oxide having 12 and 14 carbon atoms of ethylene oxide (80% by weight) adduct of polypropylene glycol (number average molecular weight 3250)
0% by weight) 80 parts of adduct

Test Example One cylindrical molded product of each of Examples 1 to 3 was put into a medical drainage trap of a dentist, actually used, and the generation of putrefaction odor was tested organoleptically. The determination of putrefaction odor was carried out by 10 persons, and each was judged based on whether or not they felt putrefaction odor. As a comparative example, the same evaluation was performed without adding the water-slowly soluble putrefaction inhibitor. Table 1 shows the results.

[0021]

Table 1 After 10 days After 20 days After 30 days -------------------------------------------------------------------------- Example 1 10 10 9 Implementation Example 2 10 9 10 Example 3 10 8 9 Comparative Example 0 0 0 ------------------------------------------------------- Is the number of people who did not feel the odor of decay

Table 1 clearly shows that the water-slowly soluble putrefaction inhibitor of the present invention can suppress the generation of putrefaction odor for 30 days.

[0023]

By installing the water-slowly soluble rot inhibitor of the present invention in a drain channel such as a drain trap, the rot preventing effect of drainage can be maintained for a long period of time. In particular, by installing the inhibitor of the present invention in a trap in which organic matter remains, such as a dentist's medical drainage trap, it is possible to suppress the generation of putrefactive odor, which was a conventional problem, for a long time.

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁶ Identification symbol FI // C09K 3/00 110 C09K 3/00 110B (56) References JP-A-58-219103 (JP, A) JP-A-53 -86019 (JP, A) JP-A-2-184609 (JP, A) Registered utility model 3001288 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01N 33/12 101 A01N 25 / 10 A01N 25/30 A01N 25/34 A01N 37/44 C09K 3/00 110 CA (STN) REGISTRY (STN) WPIDS (STN)

Claims (3)

(57) [Claims] 1. A molded article containing a disinfectant (A) and a slowly water-soluble base (B) having a melting point of 45 ° C. or higher represented by the following general formula (1), and the weight of (A) and (B): Ratio A / B is 3
/ 97 to 30/70. General formula Z [(CH ₂ CH ₂ O) _m (YO) _n H] ₂ (1) (where Z is a residue of a compound having a divalent hydroxy group; Y is M is an integer of 100 to 600, n is 1 to 3
It is an integer of 00. ) 2. The slowly water-soluble rot inhibitor according to claim 1, wherein (A) is a cationic surfactant and / or an amphoteric surfactant or an iodine fungicide. 3. The gradual water-soluble rot inhibitor according to claim 1, which is used for preventing decay of a drain trap.